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The Mineral Occurrence Data System (MODS) is the inventory of
mineral occurrences in the province. It consists of an MS Access
digital database containing information on approximately 6000
mineral occurrences, and a collection of mineral occurrence maps.
Detailed MODS data is available in the MS-Access database
for all of insular Newfoundland and most of Labrador (see index
maps below). Abbreviated mineral occurrence data is available in
GIS format (Arcview and Mapinfo) on the
Geoscience Atlas of Newfoundland and the Geoscience Atlas of
Labrador CD-ROMS.
MODS data are mainly delivered to clients via the Geological
Survey's web site. The digital database can be searched independently using the
Online Query Form or in conjunction with other geo-referenced
databases by using the online
Geoscience Resources Atlas.
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There are three series of mineral occurrence maps available. The
first series was published in 1976 (Douglas and Hsu, 1976) and
provides complete coverage for the province. The maps are
accompanied by two publications namely "Mineral Occurrence Tables
Labrador" and "Mineral Occurrence Tables Newfoundland". These
publications provide brief data about occurrences and are available
as Open Files LAB 326 and NFLD 888.
Compilation of the second series of more detailed maps (generally
1:250,000 scale) began in 1979. Coverage is complete for
Newfoundland but only partially so for Labrador. These maps show
deposit locations on a geological base and provide a mineral
occurrence listing.
The third series, which are produced digitally on demand, are in
full colour and are organized by mineral deposit theme. They are
generally compiled at either 1: 1 million or 1: 500,000 scale on
geological bases and include a mineral occurrence listing. Presently
there are four maps of this series available:
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Epigenetic Gold and Related Mineralization, Newfoundland; Map
2000-08, Open File Nfld/2692
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Copper and Associated Mineralization, Newfoundland; Map 2000-24,
Open File Nfld/2701
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Zinc - Lead and Related Mineralization, Newfoundland; Map 2000-25,
Open File Nfld/2702
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Mississippi Valley-Type Zinc and Lead Mineralization, Humber zone
Western Newfoundland; Map 2000-29, Open File Nfld/2703
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