Item talk:Q59697
From geokb
{
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"name": "Mineral potential for nickel, copper, platinum group elements(PGE), and chromium deposits hosted in ultramafic rocks in the Islamic Republic of Mauritania (phase V, deliverable 67)",
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"value": "ofr20131280G",
"url": "https://pubs.usgs.gov/publication/ofr20131280G"
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"value": 70159511
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"value": "10.3133/ofr20131280G",
"url": "https://doi.org/10.3133/ofr20131280G"
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"datePublished": "2015",
"dateModified": "2022-12-08",
"abstract": "PRISM-I summary documents mention the presence of mafic-ultramafic igneous intrusive rocks in several areas of Mauritania and a number of chromium (Cr) and copper-nickel (Cu-Ni (\u00b1Co, Au)) occurrences associated with them. Permissive geologic settings generally include greenstone belts of any age, layered mafic-ultramafic and unlayered gabbro-anorthosite intrusive complexes in cratonic settings, ophiolite complexes, flood basalt provinces, and fluid-rich shear zones cutting accumulations of mafic-ultramafic rocks. Regions of Mauritania having these characteristics that are discussed in PRISM-I texts include the Mesoarchean greenstone belts of the TasiastTijirit terrane in the southwestern Rgue\u00efbat Shield, two separate layered ultramafic complexes in the Amsaga Complex west of Atar, serpentinized metadunites in Mesoarchean rocks of the Rgue\u00efbat Shield in the Zednes map sheet, several lateritized annular mafic-ultramafic complexes in the Paleoproterozoic northwestern portion of the Rgue\u00efbat Shield, and the serpentinized ophiolitic segments of the Gorgol Noir Complex in the axial portion of the southern Mauritanides. Bureau de Recherches G\u00e9ologiques et Mini\u00e8res (BRGM) work in the \u201cExtreme Sud\u201d zone also suggests that small copper occurrences associated with the extensive Jurassic microgabbroic intrusive rocks in the Taoudeni Basin of southeastern Mauritania could have potential for magmatic Cu-Ni (PGE, Co, Au) sulfide mineralization. Similarly, Jurassic mafic intrusive rocks in the northeastern Taoudeni Basin may be permissive. Known magmatic Cu-Ni deposits of these types in Mauritania are few in number and some uncertainty exists as to the nature of several of the more important ones.",
"description": "ix, 85 p.",
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"name": "U.S. Geological Survey"
},
"author": [
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"@type": "Person",
"name": "Taylor, Cliff D. ctaylor@usgs.gov",
"givenName": "Cliff D.",
"familyName": "Taylor",
"email": "ctaylor@usgs.gov",
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"name": "Central Mineral and Environmental Resources Science Center",
"url": "https://www.usgs.gov/centers/gggsc"
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},
{
"@type": "Person",
"name": "Marsh, Erin E. emarsh@usgs.gov",
"givenName": "Erin E.",
"familyName": "Marsh",
"email": "emarsh@usgs.gov",
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{
"@type": "Person",
"name": "Anderson, Eric D. ericanderson@usgs.gov",
"givenName": "Eric D.",
"familyName": "Anderson",
"email": "ericanderson@usgs.gov",
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