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Database structure

Table Description
main Primary descriptive information about the site
mineral Minerals forming the deposit
host_rock Rocks in direct contact with the ore deposit.
rocks_up Rocks that stratigraphically overlie the ore deposit. When available, we list the stratigraphic order of rock units from top to bottom, with given or measured thicknesses of rock units shown in parentheses. Facies associations in the same horizon are indicated by rock names connected by hyphens. The rocks listed are those that occur in the stratigraphic column immediately around the VMS deposit. Some rocks that are important in exploration for VMS deposits, such as exhalite beds (for example, chert, jasperoid, or siliceous bed), may not have been recorded if they were not recognized by the investigators.
rocks_down Rocks that stratigraphically underlie the ore deposit. When available, we list the stratigraphic order of rock units from top to bottom, with given or measured thicknesses of rock units shown in parentheses. Facies associations in the same horizon are indicated by rock names connected by hyphens. The rocks listed are those that occur in the stratigraphic column immediately around the VMS deposit. Some rocks that are important in exploration for VMS deposits, such as exhalite beds (for example, chert, jasperoid, or siliceous bed), may not have been recorded if they were not recognized by the investigators.
rocks_5km Rocks on a regional map found within 5 kilometers of the deposit. When available, the ages of the associated rocks are added to the field.
dep_5km Deposit types that occur within 5 kilometers of the deposit. In many situations, these spatially related deposits are merely occurrences and not economic mineral deposits. The deposit type is designated using the model number and name listed in USGS Bulletins 1693 (Cox and Singer, 1986) and 2004 (Bliss, 1992).
dep_10km Deposit types that occur within 10 kilometers of the deposit. In many situations, these spatially related deposits are merely occurrences and not economic mineral deposits. The deposit type is designated using the model number and name listed in USGS Bulletins 1693 (Cox and Singer, 1986) and 2004 (Bliss, 1992).
reference Papers, web sites, and unpublished sources that provided data for the deposit
datadxny Data dictionary, explaining tables and fields

Database field categories

Site identification 12
Geographic location 11
Site characteristics 40
Metadata 16