Mineral Resources On-Line Spatial Data
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The name or names of the mine, prospect or mineral occurrence as it is referred to in the literature. If more than one name has been used, the primary name is the one in most common usage and is listed first. Textual values of no more than 314 characters.
Name of the general area in which the site is located. Textual values of no more than 33 characters.
Dominant elements or commodities of real or potential economic value in the site. For some deposits, the list of commodities is only a list of elements identified in a sample or samples and does not necessarily indicate the commodities that ultimately will prove valuable. Textual values of no more than 86 characters.
USGS topographic maps on which the site is located. The first two letters are a code for the 1:250,000-scale quadrangle. Textual values of no more than 8 characters.
USGS 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. Textual values of no more than 13 characters.
Location 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. Real numbers stored in double precision.
Location 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. Real numbers stored in double precision.
A narrative description of the location of the site and its areal extent, which should also include information on the reliability of the location. Textual values of no more than 1418 characters.
Other 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 sample or samples and does not necessarily indicate the commodities. Textual values of no more than 48 characters.
A list of the minerals in the site, usually metallic, which are of potential economic value. Textual values of no more than 368 characters.
A list of the non-economic minerals in the site that cannot be avoided in mining but are separated during concentration. Textual values of no more than 220 characters.
The sites described in this database are separated into mines, prospects, and mineral occurrences. In general, mines have past production, prospects have had some development work, and mineral occurrences include unexplored or incompletely explored oc. Textual values of no more than 17 characters.
Inactive or active. An active designation indicates recent work at the time of record entry or update. The determination of this status is not to be construed to reflect the legal status of the site, but rather indicates the appearance of exploration. Textual values of no more than 26 characters.
Restricted to "yes", "no", or undetermined ("undet."). "Yes" may be qualified as small, medium, or large. Textual values of no more than 16 characters.
One 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. Textual values of no more than 617 characters.
Local geology and character of the deposit including, where possible, the host rock, structure of the host and mineralized system, mineralogical relations, and the shape and form of the deposit. Textual values of no more than 8693 characters.
A description of the mining or exploration efforts to evaluate a mine or prospect. For mineral occurrences, this field would normally include the work done or the evidence to suggest mineral potential. Textual values of no more than 6459 characters.
Pertinent information not appropriate for other fields in the description. Textual values of no more than 1660 characters.
List of known references that discuss the occurrence or are applicable to its description. Textual values of no more than 1372 characters.
Unique label assigned to each site. First two letters comprise the quadrangle code, followed by a three digit number. Textual values of no more than 11 characters.
Names of people responsible for completion of the record. Textual values of no more than 134 characters.
Date of record entry or last update. Textual values of no more than 16 characters.
Unique identifier for the record as it appeared in the Mineral Resources Data System (MRDS). Textual values of no more than 61 characters.
The age of mineralization and an explanation of the evidence for the age, if warranted. Textual values of no more than 1323 characters.
Institutional affiliation of the reporter providing the information about the site. Textual values of no more than 53 characters.
Unique identifier for the mineral deposit model, from Cox and Singer (1986) or Bliss (1992). Textual values of no more than 68 characters.
Description of alteration of the deposit. Textual values of no more than 1594 characters.
More extensive (and variable) information about production at the site, if known. Textual values of no more than 3488 characters.
Reserve figures and references to their source. This field may include estimates based on a variety of assumptions at various times; this can result in conflicting assessments of reserves. This field may also include resource estimates based on probab. Textual values of no more than 1661 characters.
The best reference describing the occurrence, although it may be far from a complete description. Textual values of no more than 193 characters.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://tin.er.usgs.gov/metadata/ardf.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Thursday, 18-Oct-2007 13:17:58 EDT
