Entity_Type:
Entity_Type_Label: Attribute Fields
Entity_Type_Definition:
Fields containing attribute information associated with the data set. Attribute fields occur in data layer(s) noted in parentheses.
Entity_Type_Definition_Source: Producer defined
Attribute:
Attribute_Label: Alteration (GeolMinOcc)
Attribute_Definition:
Alteration associated with the mineralization in the mineral occurrence.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "hydrothermal", or "thin zones of metasomatism in host rocks and contacts with pegmatites", etc.
Attribute:
Attribute_Label: Approx_Lat (Site)
Attribute_Definition:
Approximate latitude (WGS 84) of the approximate center of the site area.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 33.1686
Range_Domain_Maximum: 41.903853
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Approx_Lon (Site)
Attribute_Definition:
Approximate longitude (WGS 84) of the approximate center of the site area.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -118.117056
Range_Domain_Maximum: -81.288113
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Assoc_Dep (Production)
Attribute_Definition:
Deposit(s) associated with the production. These values are represented by Ftr_ID(s) for deposits (mineral occurrence [Mo]) from which production occurred.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "Mo00567", "Mo00568", or "Mo00593", etc.
Attribute:
Attribute_Label: Assoc_Mat (GeolMinOcc)
Attribute_Definition:
Associated materials occurring with the valuable material (minerals or rocks) but are not considered ore or valuable. Same as gangue for metallic mineral deposits.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "calcite", "dolomite", or "smectite", etc.
Attribute:
Attribute_Label: CntSICom (Production, Resources)
Attribute_Definition:
The contained commodity reported by the source, converted to elemental form where appropriate. If the commodity occurs as a compound, USGS authors convert the compound to its elemental form. For example, if the commodity occurs as lithium carbonate (Li2CO3), elemental Li is calculated and reported. The quantity of CntSICom is reported in the CntSIComAm field, and the associated units are reported in the CntSIComUt field. The conversion factors used for these calculations can be found on the Conversions tab of the USGS_Lithium_US_Merged_Excels file.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "B", "Li", or "W", etc.
Attribute:
Attribute_Label: CntSIComAm (Production, Resources)
Attribute_Definition:
Contained commodity amount as reported by the source, converted to the International System of Units (SI units). The minimum and maximum values listed below are from the CntSIComAm field in the Resource table. The values in the Production table range from 16 – 254,000 with variable units. When appropriate CntSIComAm values are calculated by USGS authors. These values are denoted by a '111' decimal trailer.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 18,100
Range_Domain_Maximum: 5,370,000
Attribute_Units_of_Measure: See CntSIComUt.
Attribute:
Attribute_Label: CntSIComUt (Production, Resources)
Attribute_Definition:
The unit of the contained commodity amount as reported by the source, converted to the International System of Units (SI units). When appropriate contained commodity amounts are calculated to metric tons by USGS authors. These units apply to values listed in the CntSIComAm field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values are limited to metric tons.
Attribute:
Attribute_Label: COG_SI (Production, Resources)
Attribute_Definition:
Cut-off grade (CutOffGrad) reported by the source, converted to International System of Units (SI). The minimum and maximum values listed below are from the COG_SI field in the Resources table. No cut-off grade information was available for production values. Cut-off grade units vary by commodity and deposit, and are listed in the field COU_SI. When appropriate COG_SI values are calculated by USGS authors. These values are denoted by a '111' decimal trailer.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 5,000
Attribute_Units_of_Measure: See COU_SI.
Attribute:
Attribute_Label: Commodity (GeolMinOcc, Loc_Pt, Site)
Attribute_Definition:
Commodity(s) present or associated with the feature (mineral occurrence [Mo], mine feature [Mf], or mineral region [Mr]).
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "lithium", "bromine", or "sodium", etc.
Attribute:
Attribute_Label: Cont_Units (Production, Resources)
Attribute_Definition:
The units of weight as reported by the source report for the contained commodity (Contained) field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "kilograms", "metric tons", or "short tons", etc.
Attribute:
Attribute_Label: Contained (Production, Resources)
Attribute_Definition:
The amount of contained commodity present in the ore. The minimum and maximum values listed below are from the Contained field in the Resource table. The values in the Production table range from 150 – 254,000 with variable units. When appropriate Contained values are calculated by USGS authors. These values are denoted by a '111' decimal trailer.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 18,100
Range_Domain_Maximum: 962,962,000
Attribute_Units_of_Measure: See Cont_Units.
Attribute:
Attribute_Label: COU_SI (Production, Resources)
Attribute_Definition:
Reported resource or production cutoff grade units (CutOffUnit) converted to International System of Units (SI). No values were available for the Production table for this field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "milligrams per liter", "parts per million Li", or "percent B2O3", etc.
Attribute:
Attribute_Label: County (Loc_Pt, Loc_Poly_Sw)
Attribute_Definition:
Name of the U.S. county where the feature is located. If the mine, mineral occurrence, or mineral region occurs in multiple counties, all county names are listed, separated by semicolons.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Box Elder", "Cleveland", or "Lafayette; Columbia; Ouachita; Union", etc.
Attribute:
Attribute_Label: CutOffGrad (Production, Resources)
Attribute_Definition:
Reported resource or production cutoff grade. The minimum and maximum values listed below are for the CutOffGrad field in the Resources table with variable units. No cut-off grade information was available for production values. When appropriate CutOffGrad values are calculated by USGS authors. These values are denoted by a '111' decimal trailer.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 5,000
Attribute_Units_of_Measure: See CutOffUnit.
Attribute:
Attribute_Label: CutOffUnit (Production, Resources)
Attribute_Definition:
The units reported by the source report for the cutoff grade (CutOffGrad) field. No values were available for the Production table for this field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "milligrams per liter Li", "parts per million Li", or "percent B2O3", etc.
Attribute:
Attribute_Label: Dep_Model (Site)
Attribute_Definition:
Indicates whether the deposit(s) on the site has been classified in the Dep_Model table.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Descr (Descr_Sum)
Attribute_Definition:
Provides a detailed description of a feature identified by the Ftr_ID or Site_ID. Description reported in quotations ("") by the source reference. These data are supplementary text intended to expand on the descriptions of features that the database structure would not otherwise allow.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Bonnie Claire appears to be a new type of deposit...", "Lithium occurs in the Salton Sea KGRA fluids...", or "Searles Lake is underlain by 693 m of saline mineral layers", etc.
Attribute:
Attribute_Label: Descr_Sum (Site)
Attribute_Definition:
Indicates whether descriptions have been captured for the site in the Descr_Sum table.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Descr_Type (Descr_Sum)
Attribute_Definition:
Indicates the table or feature class the Descr field is associated to.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Deposit Model", "Geology", or "Production", etc.
Attribute:
Attribute_Label: DpMd_NoNm (Dep_Model)
Attribute_Definition:
This is the deposit model classification assigned to the deposit, noted by a deposit model number and (or) name. When a numbered deposit precedes a deposit name, this indicates the DpMd_NoNm is a USGS classified deposit model. When a deposit model is described in text, this is the common name for the deposit model, but may not be the officially recognized USGS classified name.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "251.30(T) - lithium in smectites of closed basins", "closed-basin brine", or "geothermal brine", etc.
Attribute:
Attribute_Label: DpMd_RefID (Dep_Model)
Attribute_Definition:
The deposit model classification short reference, or Ref_ID, of the source report that provides geologic descriptions that help classify the mineral deposit model.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "American Pacific Borate and Lithium Ltd. (2017)", "Bradley and others (2017)", or "Cowie (1985)", etc.
Attribute:
Attribute_Label: Ftr_Group (Loc_Pt)
Attribute_Definition:
A group to which a feature belongs, such as mine feature, mineral occurrence, or mineral region.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mine Feature
Enumerated_Domain_Value_Definition:
A man-made entity associated with the process of extracting, processing, or concentrating ore materials.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mineral Occurrence
Enumerated_Domain_Value_Definition:
Concentration of useful minerals or materials in sufficient quantity that it has been (or might be) exploited.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mineral Region
Enumerated_Domain_Value_Definition:
An area defined by a grouping of mines or mineral deposits or a geological environment permissive for mineral deposits.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute:
Attribute_Label:
Ftr_ID (Dep_Model, Descr_Sum, GeolMinOcc, History, Loc_Poly, Loc_Poly_Sw, Loc_Pt, Production, Resources)
Attribute_Definition:
An identification assigned to a feature. A “-1111” value indicates that the record pertains to a group of related features. These features will have the same Site_ID but differing Ftr_IDs. The format of the identification pertains to the type of feature followed by a number. The format is Mo (mineral occurrences), Mr (mineral regions), or Mf (mine features) followed by a 5-digit number, for example, “Mo00001”.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "Mo00567", "Mf00291", or "Sw00128", etc.
Attribute:
Attribute_Label:
Ftr_Name (Dep_Model, GeolMinOcc, History, Loc_Poly, Loc_Poly_Sw, Loc_Pt, Production, Resources).
Attribute_Definition:
The current (preferred) form of the name of the mine, mineral occurrence, or mineral region. The syntax of the Ftr_Name is "Site name, Feature name". If the feature name is informal, it will be followed by "deposit" for a mineral occurrence or "mine" for a mine feature.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Bessemer City, Bessemer City deposit", "Bonnie Claire, Bonnie Claire deposit", or "Clayton Valley South, Clayton Valley South deposit", etc.
Attribute:
Attribute_Label: Ftr_Type (GeolMinOcc, Loc_Pt)
Attribute_Definition: Type of mine, mineral occurrence, or mineral region feature.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Brine Mine
Enumerated_Domain_Value_Definition:
The extraction of valuable materials through a well from which brine is pumped to the surface.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Deposit
Enumerated_Domain_Value_Definition:
A mineral occurrence with grade and size as determined by a reserve, or a resource estimate, or by production history.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Geothermal Reservoir
Enumerated_Domain_Value_Definition:
Underground storage of water trapped in porous rock capable of providing hydrothermal resources.
Enumerated_Domain_Value_Definition_Source: AGI (2011)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mineral District
Enumerated_Domain_Value_Definition:
An area, usually designated by name, defined by a group of deposits of similar type, origin, or commodity.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mining District
Enumerated_Domain_Value_Definition:
Mining districts represent historic administrative areas organized by miners under the mining laws of the United States. Mining districts are typically an area containing a group of mines that exploited the same or related commodity.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Open Pit Mine
Enumerated_Domain_Value_Definition:
Surficial mine, in which the valuable rock is exposed by removal of overburden.
Enumerated_Domain_Value_Definition_Source: AGI (2011)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Prospect
Enumerated_Domain_Value_Definition:
A mineral occurrence that has at least two dimensions (area) and evidence that useful minerals or materials are present, as indicated by analyses or the presence of valuable minerals.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Well
Enumerated_Domain_Value_Definition:
An artificial excavation, generally cylindrical in form and often walled in, sunk into the ground to such a depth as to penetrate water-yielding rock or soil and to allow the water to flow or to be pumped to the surface.
Enumerated_Domain_Value_Definition_Source: AGI (2011)
Attribute:
Attribute_Label: GEM_Name (Dep_Model)
Attribute_Definition:
Associated geoenvironmental model(s). The value "unclassified" is attributed to deposit models for this field which do not have an associated geoenvironmental model defined. Geoenvironmental models are derived from the deposit model classifying the deposit.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values are limited to "unclassified" within the lithium database.
Attribute:
Attribute_Label: GEM_RefID (Dep_Model)
Attribute_Definition:
The geoenvironmental model classification reference. Short reference, similar to the Ref_ID field in other tables and feature classes, of the source report that contains the information used to select the appropriate geoenvironmental model for a mineral occurrence. There are no values recorded for this attribute in the table.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values are limited to "Null" within the lithium database.
Attribute:
Attribute_Label: GeolMinOcc (Site)
Attribute_Definition:
Indicates whether data have been captured in the GeolMinOcc table for the mineral occurrence(s) on the site.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Grade (Production, Resources)
Attribute_Definition:
The reported numerical grade of the deposit. The minimum and maximum values listed below are from the Grade field in the Resources table with variable units. The values in the Production table range from 1.5 – 5,070 with variable units. When appropriate Grade values are calculated by USGS authors. These values are denoted by a '111' decimal trailer. Where the grade is reported as a range in values, the average of the range is listed within the field and the reported range is noted in the Remarks field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.005
Range_Domain_Maximum: 3,283
Attribute_Units_of_Measure: See Grade_Unit.
Attribute:
Attribute_Label: Grade_Unit (Production, Resources)
Attribute_Definition: The units of the reported numerical grade.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "milligrams per liter", "parts per million", and "percent", etc.
Attribute:
Attribute_Label: GradeSI (Production, Resources)
Attribute_Definition:
The reported numerical grade (Grade) converted to International System of Units (SI). The minimum and maximum values listed below are from the GradeSI field in the Resources table. The values in the Production table range from 1.5 – 5,070 with variable units. When appropriate GradeSI values are calculated by USGS authors. These values are denoted by a '111' decimal trailer. Where the grade is reported as a range in values, the average of the range is listed within the field and the reported range is noted in the Remarks field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.005
Range_Domain_Maximum: 3,283
Attribute_Units_of_Measure: See GradUnitSI.
Attribute:
Attribute_Label: GradUnitSI (Production, Resources)
Attribute_Definition:
The units of the reported grade (Grade_Unit) converted to International System of Units (SI).
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "milligrams per liter", "parts per million", and "percent", etc.
Attribute:
Attribute_Label: History (Site)
Attribute_Definition:
Indicates whether history data for the site have been captured in the History table.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Host_Age (GeolMinOcc)
Attribute_Definition:
The age of the Host_Litho unit(s) that are in direct contact with, or cut across the mineral occurrence. Age is recorded as it was stated in the source report, this age may be reported as millions of years (Mega-annum [Ma]) or chronostratigraphic units.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "16.39 Ma", "Holocene", or "Jurassic-Oxfordian", etc.
Attribute:
Attribute_Label: Host_Litho (GeolMinOcc)
Attribute_Definition:
The lithological unit(s) that host, that are in direct contact with, or cut across the mineral occurrence. Multiple host lithologies may be present, where unique values are separated by semicolons.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "coarse-grained granite and pegmatite", "coarse-grained biotite-muscovite", or "arkosic sandstone", etc.
Attribute:
Attribute_Label: Host_Name (GeolMinOcc)
Attribute_Definition:
The formal name of the lithological units that host the mineral occurrence as reported by the source report. Descriptive text, not abbreviated.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Esmeralda Formation", "McDermitt Tuff", or "Palm Spring Formation", etc.
Attribute:
Attribute_Label:
Last_Updt (Dep_Model, Descr_Sum, GeolMinOcc, History, Loc_Poly, Loc_Poly_Sw, Loc_Pt, Production, References, Resources)
Attribute_Definition:
The date that the record was last updated or revised by the USGS authors. Format is YYYY-MM-DD.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "2018-11-06", "2018-11-19", or "2019-04-18", etc.
Attribute:
Attribute_Label: Lat_WGS84 (Loc_Pt)
Attribute_Definition: Latitude of the point location in decimal degrees (WGS 84).
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 33.07324
Range_Domain_Maximum: 41.91975
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Loc_Date (Loc_Poly_Sw, Loc_Pt)
Attribute_Definition:
The publication year of the map or figure used to obtain the feature location. The year may differ from the publication date of the reference (identified by the Ref_ID). For example, the explanation for a location figure in a report states “Map from 2002”. The reference was published in 2003. In this case, “2002” is recorded in Loc_Date.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "1918", "1976", or "1973", etc.
Attribute:
Attribute_Label: Loc_Poly (Loc_Pt, Site)
Attribute_Definition:
Indicates whether a polygon location(s) has been digitized for a corresponding point location.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Loc_Pt (Site)
Attribute_Definition:
Indicates whether the point location(s) has been captured for features in the site.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Loc_Scale (Loc_Pt)
Attribute_Definition:
Defines the accuracy of the location as Large, Medium, or Small depending on the scale of the map that the location was captured from.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Small (less than 1:250,000)
Enumerated_Domain_Value_Definition:
The representative fraction scale of the source map is 1:250,000 or smaller.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Medium (1:24,000-1:250,000)
Enumerated_Domain_Value_Definition:
The representative fraction scale of the source map is between 1:24,000 and 1:250,000.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Large (greater than 1:24,000)
Enumerated_Domain_Value_Definition:
The representative fraction scale of the source map is 1:24,000 or larger.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute:
Attribute_Label: Long_WGS84 (Loc_Pt)
Attribute_Definition: Longitude of the point location in decimal degrees (WGS 84).
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -118.134605
Range_Domain_Maximum: -81.288113
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Mat_Amnt (Production, Resources)
Attribute_Definition:
The reported amount of the material. The minimum and maximum values listed below are from the Mat_Amnt field in the Resources table with variable units. The values in the Production table range from 450 – 315,066,972 with variable units. Negative number values indicate that the amount value is listed for multiple commodity forms. For example, if the source says that there were 47,000,000 metric tons of ore containing 1.43 percent sodium, 0.58 percent fluorine, 3.83 percent potassium, and 0.26 percent lithium, -47,000,000 would be entered in Mat_Amnt for each record (table row). When appropriate Mat_Amnt values are calculated by USGS authors. These values are denoted by a '111' decimal trailer. Where the material amount is reported as a range in values, the average of the range is listed within the field and the reported range is noted in the Remarks field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31,600
Range_Domain_Maximum: 9,500,000,000
Attribute_Units_of_Measure: See Mat_Units.
Attribute:
Attribute_Label: Mat_Type (Production, Resources)
Attribute_Definition:
Type of material in the resource or reserve estimate, or type of material produced from the mine.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: brine
Enumerated_Domain_Value_Definition:
A term used for pore fluids in deep sedimentary basins, stratified hot fluids in restricted basins, oil-field waters, and geothermal mineralizing fluids. It denotes warm to hot highly saline waters containing Ca, Na, K, Cl, and minor amounts of other elements.
Enumerated_Domain_Value_Definition_Source: AGI (2011)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: commodity
Enumerated_Domain_Value_Definition:
The final, valuable material that has been processed out of the ore material. The commodity is commonly represented in the source documentation as contained commodity in units such as ounces, pounds, metric tons, etc.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ore
Enumerated_Domain_Value_Definition:
The mixture of valuable materials along with gangue rocks and minerals. Ore is commonly represented in tons, metric tons, cubic yards, carloads, etc., and is usually associated with a grade(s) of valuable material(s) contained in a given amount of ore produced.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute:
Attribute_Label: Mat_Units (Production, Resources)
Attribute_Definition: The units of the material amount (Mat_Amnt) field.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "cubic meters", "metric tons", or "short tons", etc.
Attribute:
Attribute_Label: MatAmntSI (Production, Resources)
Attribute_Definition:
The reported amount of the material (Mat_Amnt) converted to International System of Units (SI). The minimum and maximum values listed below are from the MatAmntSI field in the Resources table with variable units. The values in the Production table range from 450 – 50,092,497,900 with variable units. A negative sign indicates that the amount value is listed for multiple commodity forms. For example, if the source says that there were 47,000,000 metric tons of ore containing 1.43 percent sodium, 0.58 percent fluorine, 3.83 percent potassium, and 0.26 percent lithium, -47,000,000 would be entered in Mat_Amnt for each record (table row). When appropriate MatAmntSI values are calculated by USGS authors. These values are denoted by a '111' decimal trailer.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31,600
Range_Domain_Maximum: 9,500,000,000
Attribute_Units_of_Measure: See MatUnitsSI.
Attribute:
Attribute_Label: Material (Production, Resources)
Attribute_Definition:
The material reported in the production value or resource estimate of the source report.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "boric acid (H3BO3)", "lithium (Li)", or "tungsten trioxide (WO3)", etc.
Attribute:
Attribute_Label: MatUnitsSI (Production, Resources)
Attribute_Definition:
The material amount units reported (Mat_Units) after conversion to International System of Units (SI). When appropriate MatUnitsSI values are calculated by USGS authors. These values are denoted by a '111' decimal trailer.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "cubic meters", "liters", or "metric tons", etc.
Attribute:
Attribute_Label: Min_Age (GeolMinOcc)
Attribute_Definition:
Age of mineralization. Values may be millions of years (Mega-annum [Ma]), descriptive text, or a combination.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "14.9 Ma", "340 +/- 5 Ma" or "Holocene", etc.
Attribute:
Attribute_Label: Min_Style (GeolMinOcc)
Attribute_Definition: Describes how the valuable materials occur.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "brine", "disseminated", or "evaporite", etc.
Attribute:
Attribute_Label: MinReg_ID (Site)
Attribute_Definition:
Unique identification of a mineral region. The MinReg_ID is the same as the Ftr_ID in the Loc_Pt table. In this database, mineral regions are attributed as areas, mineral districts, or mining districts that contain one or more mine or mineral occurrence feature.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "Mr00080", "Mr00127", or "Mr00159", etc.
Attribute:
Attribute_Label: Other_Name (Loc_Pt, Site)
Attribute_Definition:
Other reported names of the mineral region, mineral occurrence, mine, or site. Descriptive text, not abbreviated.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Carolina Lithium belt", "Clayton Lake; Clayton Valley Brine Field; Clayton Valley; Albemarle Corp." or "Kings Mountain deposit", etc.
Attribute:
Attribute_Label: Poly_Def (Loc_Pt)
Attribute_Definition:
Type of polygonal boundary. Definitions of polygons are typically derived from map legends or source descriptions.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Approximate extent of H2S-Rich Belt on figure", Approximate extent of inferred resource model domain from map", or "Approximate extent of lithium lens on map", etc.
Attribute:
Attribute_Label: Production (Site)
Attribute_Definition:
Indicates whether the production data for the mine(s) on the site have been recorded in the Production table.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Pt_Def (Loc_Pt)
Attribute_Definition:
Point definition from source report or approximated by authors. Points can be captured from a source report figure or map, or approximated by the authors to show a location of a mine (for example, center of pit). In cases where a mineral occurrence or mineral region boundary was available, the polygon was digitized and the point represents the approximate center of the polygon (centroid).
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Approximate center of Salton Sea KGRA on map", "Approximate center of polygon from map", or "Approximate location of Pilot plant on figure", etc.
Attribute:
Attribute_Label:
Ref_Detail (Dep_Model, History, Loc_Poly_Sw, Loc_Pt, Production, Resources)
Attribute_Definition:
The figure, page, map, etc. number that the data were recorded from. If the data occurs in a table on a certain page, the table name or number and page number are captured. When a figure number is denoted on a page, the syntax of this field is "Page number, Figure number".
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Page 11", "Page 3, Figure 2", or "Page K7, Figure K5", etc.
Attribute:
Attribute_Label:
Ref_ID (Descr_Sum, GeolMinOcc, History, Loc_Poly_Sw, Loc_Pt, Production, References, Resources)
Attribute_Definition:
Shortened reference identification of the source report. Identification includes author name(s) and publication year.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Arkansas Oil and Gas Commission (2018)", "Blois and others (2017)", or "Fourie (2018)", etc.
Attribute:
Attribute_Label: Reference (References)
Attribute_Definition:
Full reference of the source report. References are listed using USGS citation format.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Carew, T.J., and Rossi, M.E., 2016, Independent technical report for the Lithium Nevada project, Nevada, USA, prepared for Lithium Americas Corp. [Effective date May 31, 2016]: Vancouver, British Columbia, Canada, SRK Consulting Inc., June 2, 119 p. [Also available at
http://sedar.com.]", Davis, J.R., Friedman, I., and Gleason, J.D., 1986, Origin of the Lithium-Rich Brine, Clayton Valley, Nevada, chap. L of Peterman, Z.E., and Schnabel, D.C., eds., Shorter Contributions to Isotope Research: U.S. Geological Survey Bulletin 1622, p. 131-138.", or "Perry, R., and Visher, M., 2015, Major mines of Nevada 2014—mineral industries in Nevada's economy: Nevada Bureau of Mines and Geology Special Publication P-26, 28 p.", etc.
Attribute:
Attribute_Label:
Remarks (Dep_Model, Descr_Sum, GeolMinOcc, History, Loc_Poly, Loc_Poly_Sw, Loc_Pt, Production, Resources, Site)
Attribute_Definition:
Additional author comments, remarks, or information about the feature or data. Descriptive text, not abbreviated.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Location coordinates provided by a online database", "Mineral region is defined by the underlying geothermal reservoir", or "The deposit lies roughly 350-450 m below the surface", etc.
Attribute:
Attribute_Label: Resources (Site)
Attribute_Definition:
Indicates whether the resource or reserve estimates for the deposit(s) on the site have been captured in the Resources table.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
A "Yes" or "No" value indicating which corresponding tables contain attribute information related to the site.
Attribute:
Attribute_Label: Rsrc_Class (Resources)
Attribute_Definition:
Indicates how the resource or reserve was classified in the source report. Resources extracted from older sources might not be compliant with current rules and guidelines in minerals industry standards such as National Instrument 43-101 (NI 43-101) or the Joint Ore Reserves Committee Code (JORC Code). Inclusion of material in the database is for descriptive purposes only and does not imply endorsement by the U.S. Government. Descriptive text, not abbreviated.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Demonstrated", "Indicated", or "Indicated plus Inferred", etc.
Attribute:
Attribute_Label: Rsrc_Code (Resources)
Attribute_Definition:
Standard classification system used to classify and report the estimate.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CIM
Enumerated_Domain_Value_Definition:
The CIM (Canadian Institute of Mining, Metallurgy and Petroleum) Definition Standards on Mineral Resources and Reserves (CIM Definition Standards) establish definitions and guidance on the definitions for mineral resources, mineral reserves, and mining studies used in Canada. The Mineral Resource, Mineral Reserve, and Mining Study definitions are incorporated, by reference, into National Instrument 43-101 Standards of Disclosure for Mineral Projects (NI 43-101). The CIM Definition Standards can be viewed on the CIM website at www.cim.org.
Enumerated_Domain_Value_Definition_Source: http://www.cim.org/
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JORC
Enumerated_Domain_Value_Definition:
The Australian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves ('the JORC—Joint Ore Reserves Committee—Code') is a professional code of practice that sets minimum standards for Public Reporting of minerals Exploration Results, Mineral Resources and Ore Reserves. The JORC Code provides a mandatory system for the classification of minerals Exploration Results, Mineral Resources and Ore Reserves according to the levels of confidence in geological knowledge and technical and economic considerations in Public Reports.
Enumerated_Domain_Value_Definition_Source: http://www.jorc.org/
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SEC
Enumerated_Domain_Value_Definition:
U.S. Securities and Exchange Commission (SEC) filings. The most common SEC form used in this database is a 10-K Annual report pursuant to Section 13 or 15(d).
Enumerated_Domain_Value_Definition_Source: https://www.sec.gov/
Attribute:
Attribute_Label: Rsrc_Date (Resources)
Attribute_Definition:
Year of the resource estimate. If the value is "Null", the date of the resource estimate is unknown and most likely does not equal the date of the resource source publication. Format is YYYY.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "1959", "1985", or "2010", etc.
Attribute:
Attribute_Label: Rsrc_Descr (Resources)
Attribute_Definition:
Indicates how the resource or reserve was reported in the source report.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "In-situ Mineral Resource", "Mineral Resource", or "Reserve", etc.
Attribute:
Attribute_Label:
Site_ID (Dep_Model, Descr_Sum, GeolMinOcc, History, Loc_Poly, Loc_Pt, Production, Resources, Site)
Attribute_Definition:
Unique identification assigned to a site. Format is two-letter state abbreviation and a 5-digit number.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "AR00002", "CA00002", or "NV00118", etc.
Attribute:
Attribute_Label: Site_Name (Site)
Attribute_Definition:
Site name assigned by authors. Mine and mineral occurrence features are grouped into sites based on geological characteristics or location.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Bessemer City", "Clayton Valley South", or "Smackover-Lanxess", etc.
Attribute:
Attribute_Label: StatDetail (History)
Attribute_Definition:
Status detail that pertains to the type of activity that occurred during a specified time period, as shown in the Year_From and Year_To fields. Values include descriptive text entry.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain:
Values may include "Borax discovered", "Discovered in 1927", or "JORC compliant report", etc.
Attribute:
Attribute_Label: State (Loc_Poly_Sw, Loc_Pt)
Attribute_Definition: U.S. state name abbreviated using 2-letter codes.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "CA", "NC", or "NV", etc.
Attribute:
Attribute_Label: Status (History)
Attribute_Definition:
The type of activity that took place during a specified time period, as shown in the Year_From and Year_To fields.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Active
Enumerated_Domain_Value_Definition:
Indicates a mine is in full-time or intermittent production, or is selling from stockpiles.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Development
Enumerated_Domain_Value_Definition:
Indicates planning and studies are in progress or have been completed for the development of the mine, or that a mine is actively under development.
Enumerated_Domain_Value_Definition_Source: USGS Authors
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Discovery
Enumerated_Domain_Value_Definition:
The actual finding of a valuable mineral, indicative of a deposit. Legally, a discovery is a prerequisite to making a mining claim on an area.
Enumerated_Domain_Value_Definition_Source: AGI (2011)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Evaluation
Enumerated_Domain_Value_Definition:
The fixing of an evaluation, not an appraisal. Used in preference of the word valuation, which is often confused with appraisal.
Enumerated_Domain_Value_Definition_Source: AGI (1997)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Exploration
Enumerated_Domain_Value_Definition:
The search for deposits of useful minerals or fossil fuels. It may include geologic reconnaissance, e.g. remote sensing, photogeology, geophysical and geochemical methods, and both surface and underground investigations. Establishing the nature of a known mineral deposit, preparatory to development. In the sense that exploration goes beyond discovery, it is a broader term than prospecting.
Enumerated_Domain_Value_Definition_Source: AGI (2011)
Attribute:
Attribute_Label: Value_Mat (GeolMinOcc)
Attribute_Definition:
Valuable materials (minerals or rocks) that comprise the valuable constituents of a deposit.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "brine", "cassiterite", or "spodumene", etc.
Attribute:
Attribute_Label: Year_From (History, Production)
Attribute_Definition:
First year of production or history. When mine production was intermittent, only the first and last year of reported production are shown. See Last_Updt (last updated) field for the currency of the values.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "1862", "1950", or "2019", etc.
Attribute:
Attribute_Label: Year_To (History, Production)
Attribute_Definition:
Last year of production or history. When mine production was intermittent, only the first and last year of reported production are shown. See Last_Updt (last updated) field for the currency of the values.
Attribute_Definition_Source: USGS Authors
Attribute_Domain_Values:
Unrepresentable_Domain: Values may include "1862", "1950", or "2019", etc.