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Greenstone belt
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#	Item
41	Memorial to Thomas Prence Thayer (1907–2004) C. ERVIN BROWN[removed]Good Spring Avenue, Great Falls, Virginia 22066, USA Thomas P. Thayer died of a stroke in St. Petersburg, Florida, on 14 May 2004, eight days before his Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2008-02-27 18:32:23 Plate tectonics Ultramafic rocks Chromite Levi F. Noble Ore Peridotite Geologic map South Pass greenstone belt Geologic map of Georgia Geology Chemistry Economic geology
42	Memorial to Gus H. Goudarzi 1918 –1996 C. ERVIN BROWN[removed]Good Spring Avenue, Great Falls, VA[removed]With Contributions from Olga Goudarzi, Eugene C. Robertson, Donald A. Brobst, Frank G. Lesure, Nancy Lesure, and Mar Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2008-06-18 12:23:48 Geologic map Geomorphology United States Geological Survey Mineral resource classification Industrial mineral South Pass greenstone belt Geologic map of Georgia Geology Economic geology Geological surveys
43	Memorial to Frank Stanton Simons 1917–1995 WARREN B. HAMILTON Department of Geophysics, Colorado School of Mines, Golden, Colorado[removed]Frank Simons was a distinguished field-based areal and economic geologist with th Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2008-06-18 12:09:22 Cartography Geography of the United States South Pass greenstone belt Nelson Horatio Darton Geology Geologic map Geomorphology
44	Correlation between ~3.22 Ga old microbial mat morphotypes and distinct paleoenvironments (Moodies Group, Barberton Greenstone Belt, South Africa) Homann, Martin and Heubeck, Christoph Freie Univ Add to Reading List Source URL: www.geo.fu-berlin.de Language: English - Date: 2013-09-09 05:37:31 Proterozoic Cambrian Evolutionary biology Microbial mat Mat Geologic time scale Floors Paleontology
45	significant populations at 1500 Ma and 1100 Ma. The zircon inheritance age suggests an almost exclusively arc-dominated source of East Avalonian affinity for these sediments, although the granites cannot be matched direc Add to Reading List Source URL: www.geo.fu-berlin.de Language: English - Date: 2013-09-09 05:37:27 Historical geology Plate tectonics Basalt Greenstone belt Archean Volcanogenic massive sulfide ore deposit Igneous rock Superior craton Pilbara craton Geology Cratons Economic geology
46	Memorial to Gordon Arnold Gross (1923–2011) ROBERT BARAGAR Geological Survey of Canada, 601 Booth Street, Ottawa, Canada K1A 0E8 With the death of Gordon Gross on 14 March 2011, Canada lost one of her pre-eminent earth Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2011-11-23 11:41:45 Ore Iron ore Banded iron formation Michael Lesher South Pass greenstone belt Economic geology Geology Historical geology
47	Memorial to James Jennings Norton (1918–2005) JACK A. REDDEN Emeritus, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA DAVID B. STEWART Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2010-04-21 16:02:52 Great Sioux War of 1876–77 Gemstones Pegmatite Black Hills Beryl Mount Rushmore Spodumene Mineral resource classification South Pass greenstone belt South Dakota Economic geology Crystallography
48	Memorial to Gilbert Howry Espenshade 1912–1993 DOUGLAS W. RANKIN and AVERY ALA DRAKE, JR. U.S. Geological Survey, Reston, Virginia[removed]Gilbert H. Espenshade, a career geologist with the U.S. Geological Survey (USGS), Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2008-06-18 12:25:50 Geologic map of Georgia Geological surveys South Pass greenstone belt Geology Geologic map Cartography
49	South African Research on volcanic and related rocks and mantle-derived materials: [removed]J.S. Marsh South African National Correspondent, IAVCEI Department of Geology Rhodes University Add to Reading List Source URL: www.iugg.org Language: English - Date: 2012-07-28 17:12:09 Ultramafic rocks Cratons Igneous petrology Kimberlite Harzburgite Layered intrusion Kaapvaal craton Peridotite Greenstone belt Geology Petrology Economic geology
50	Memorial to Jacob E. “Jack” Gair 1922–1998 JOHN F. SLACK WILLIAM F. CANNON U.S. Geological Survey, 954 National Center, Reston, VA[removed]Jacob Eugene “Jack” Gair, 75, an internationally known Add to Reading List Source URL: rock.geosociety.org Language: English - Date: 2008-06-18 12:25:52 Geologic map of Georgia South Pass greenstone belt Geological surveys Geology Volcanogenic massive sulfide ore deposit Ore

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