Luhr, James, San Juan I, undated
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PrintThe field notes document the work of James F. Luhr in relation to his volcanology research in San Juan, Nayarit, Mexico. Data contains information on: directions to location, minerals observed, their geological characteristics, color, inclusions, metric measurements, LW, LG, UA (e.g. LW=31). There are drawings of the cross sections of geological structures with the indicators of the specimens with measurements are provided in inches. Sometimes, there can be seen specific mention of samples: quantity, identifier (e.g. 10 NP-2 W,G), note on photography, color, measurements in inches and centimeters. All pages are numbered.
1977-1979
Jan 11, 1977
Nov 15, 1979
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SIA Acc. 16-255
National Museum of Natural History (U.S.), Department of Mineral Sciences, Curatorial Records, 1940-2016
field book
Smithsonian Institution Archives
Box 3 folder 2