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Virginia T. McLemore, New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, Socorro, NM 87801

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Presentation on theme: "Virginia T. McLemore, New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, Socorro, NM 87801"— Presentation transcript:

1 Virginia T. McLemore, New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, Socorro, NM 87801 ginger@gis.nmt.eduginger@gis.nmt.edu

2  Introduction  Methods  Mining and exploration history  Geology  Petrochemistry of the igneous rocks  Description of mineral deposits  Mineral zoning and paragenesis  Preliminary conclusions and resource potential

3  Funded by the NMBGMR  Much of the geochemical analyses were by USBM (Russ Schreiner)  New geochemical analyses were funded by Strategic Resources, Inc.

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9  Published and unpublished data were inventoried and compiled on existing mines and prospects within the Gallinas Mountains  A geologic map was compiled in ARCMAP@ by modifying Kelley et al. (1946), Perhac (1961, 1970), Fulp and Woodward (1991), Korzeb and Kness (1992), Schreiner (1993), and field reconnaissance by the author (1980, 2009-2010).  Samples were collected and analyzed and compared with published data (McLemore, 2010).  Igneous rock lithologies were identified on the basis of mineralogy and chemistry as defined by LeMaitre (1989).

10 MINING AND EXPLORATION HISTORY

11 Mineral Produced Mine name Years of production Amount (short tons) Grade % Coppervarious1909-1953192.7 Goldvarious1913-19556.58 ounces Silvervarious1909-195523,723 ounces Leadvarious1909-1055863.4 Zincvarious1948-19538.7 Iron oreAmerican1942-19433,94455.7 Gallinas19426,41048.7 Other mines3,326 Total iron ore1942-194311, 540 FluoriteAll American1951-1954129 Conqueror ( Tinto)1951-1954300 Red Cloud1951-19541,000 Total fluorite1951-19541,608 BastnaesiteConqueror No. 91954-195560 Conqueror No. 10195611 Total bastnaesite 1954-195671

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20 REE-F veins (131 samples)Cu-REE-F veins (65 samples) Iron skarns (6 samples)Breccia pipe deposits (58 samples)

21 DESCRIPTION OF MINERAL DEPOSITS

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26  More chemical analyses of the igneous rocks  Determination of age of igneous rocks  Continuation of USBM preliminary investigation of the alteration  Drilling to delineate deposits in the subsurface  Petrography  Alteration  Chemistry  Mineralogy


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