Database fields, all categories

Site identification
siteThe name or names of the mine, prospect or mineral\r occurrence as it is referred to in the literature. If more\r than one name has been used, the primary name is the one in\r most common usage and is listed first.
ardf_numUnique label assigned to each site. First two letters comprise the quadrangle code, followed by a three digit number.
mrds_numUnique identifier for the record as it appeared in the Mineral Resources Data System (MRDS).
Geographic location
quad_250USGS topographic maps on which the site is located. The first two letters are a code for the 1:250,000-scale quadrangle.\r
quad_63360USGS topographic maps on which the site is located. Maps are identified in two parts, a two-letter code for the 1:250,000-scale quadrangle followed by the letter, hyphen, and number(s) used to designate the 1:63,360-scale map sheet. following USGS.
latitudeLocation of the site in decimal degrees. Some sites cover large areas and the location given is a point at the approximate center of the area.
longitudeLocation of the site in decimal degrees. Some sites cover large areas and the location given is a point at the approximate center of the area.
locationA narrative description of the location of the site and its\r areal extent, which should also include information on the\r reliability of the location.\r
Site characteristics
oreA list of the minerals in the site, usually metallic, which\r are of potential economic value.\r
gangueA list of the non-economic minerals in the site that cannot be avoided in mining but are separated during concentration.\r
site_typeThe sites described in this database are separated into\r mines, prospects, and mineral occurrences. In general,\r mines have past production, prospects have had some\r development work, and mineral occurrences include\r unexplored or incompletely explored oc
statusInactive or active. An active designation indicates recent\r work at the time of record entry or update. The\r determination of this status is not to be construed to\r reflect the legal status of the site, but rather indicates\r the appearance of exploration
productionRestricted to "yes", "no", or undetermined ("undet."). "Yes" may be qualified as small, medium, or large.\r
dep_modelOne or more named descriptive or genetic mineral deposit models listed in Cox and Singer (1986), Bliss (1992), or other indicated references. The models shown are those that appeared most appropriate to the compilers of the site record.
geol_descLocal geology and character of the deposit including, where possible, the host rock, structure of the host and\r mineralized system, mineralogical relations, and the shape\r and form of the deposit.
work_explA description of the mining or exploration efforts to\r evaluate a mine or prospect. For mineral occurrences, this\r field would normally include the work done or the evidence\r to suggest mineral potential.\r
commentsPertinent information not appropriate for other fields in the description
expand_ref
rept_namesNames of people responsible for completion of the record.
rept_dateDate of record entry or last update.
ageThe age of mineralization and an explanation of the\r evidence for the age, if warranted.\r
rept_affInstitutional affiliation of the reporter providing the information about the site.
model_codeUnique identifier for the mineral deposit model, from Cox and Singer (1986) or Bliss (1992).\r
alterationDescription of alteration of the deposit
prod_notesMore extensive (and variable) information about production at the site, if known.
reservesReserve figures and references to their source. This field\r may include estimates based on a variety of assumptions at\r various times; this can result in conflicting assessments\r of reserves. This field may also include resource estimates\r based on probab
prime_refThe best reference describing the occurrence, although it may be far from a complete description.\r
Commodities
comm_mainDominant elements or commodities of real or potential\r economic value in the site. For some deposits, the list of\r commodities is only a list of elements identified in a\r sample or samples and does not necessarily indicate the\r commodities that ultimatel
comm_otherOther commodities present in minor amounts as determined by analysis or mineralogical determination. For some deposits, the list of commodities is only a list of elements identified in a\r sample or samples and does not necessarily indicate the commodities