The Central African Republic Diamond Database—A geodatabase of archival diamond occurrences and areas of recent artisanal and small-scale diamond mining
<p>The alluvial diamond deposits of the Central African Republic (CAR) are mined almost exclusively by way of informal artisanal and small-scale mining (ASM)…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
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QUATERNARY UNCONSOLIDATED DEPOSITS BEDROCK NEOGENE AND PALEOGENE CRETACEOUS CARBONIFEROUS ORDOVICIAN AND CAMBRIAN PROTEROZOIC ARCHEAN CORRELATION OF MAP UNITS MAP LOCATION AFRICA 150 KILOMETERS 75 MILES SCALE 1:1 500 000 WORLD GEODETIC SYSTEM DATUM OF 1984 USGS Logo, AID, and Department of State Logos APPROXIMATE MEAN DECLINATION, 2018 MAGNETIC NORTH TRUE NORTH U.S. Department of the Interior U.S. Geological Survey Prepared in cooperation with the U.S. Agency for International Development under the auspices of the U.S. Department of State Open-File Report 2018–1088 Plate 1 Shaded relief, streams, geomorphology, and watershed boundaries modified from Danielson and Gesch (2011) Universal Transverse Mercator projection, zone 34N 1984 World Geodetic System Datum Minerals adapted from Blanchot and others (1973), Bureau de Recherches Géologiques et Minières (1976, 2004), Choubert and others (1968), Mestraud and Bessoles (1982), Milési and others (2004), and Yarmolyuk (1980); Towns compiled by Hearn and others (2001); Roads compiled by World Bank (2005); Subprefecture boundaries compiled by F.A. Ngbokoto, Central African Republic Ministry of Mines, written commun., 2016; Country boundaries from U.S. Department of State, Office of the Geographer (2013); Geology modified from Lescuyer and Milési (2004) Digital cartography by Sarah E. Bergstresser Edited by Katherine Jacques Manuscript approved for publication July 20, 2018 1U.S. Geological Survey. 2Natural Systems Analysts, Inc., contracted to the U.S. Geological Survey. Surficial and Bedrock Geology, Placer Diamond Deposits, and Mineral Occurrences of the Central African Republic By Jessica D. DeWitt,1 Peter G. Chirico,1 Sarah E. Bergstresser,2 and Inga E. Clark2 Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. This map or plate is offered as an online-only, digital publication. Users should be aware that, because of differences in rendering processes and pixel resolution, some slight distortion of scale may occur when viewing it on a computer screen or when printing it on an electronic plotter, even when it is viewed or printed at its intended publication scale. Digital files available at ://doi.org/10.3133/ofr20181088. Suggested citation: DeWitt, J.D., Chirico, P.G., Bergstresser, S.E., and Clark, I.E., 2018, The Central African Republic Diamond Database—A geodatabase of archival diamond occurrences and areas of recent artisanal and small-scale diamond mining: U.S. Geological Survey Open-File Report 2018–1088, 28 p., 1 pl., ://doi.org/10.3133/ofr20181088. ISSN 2331-1258 (online) ://doi.org/10.3133/ofr20181088