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Series: GSA Memoirs
Published: 01 October 2012
DOI: 10.1130/2012.1209(05)
... Nevada were predominantly wetter and colder than the current interglacial period. Cyclic episodes of aggradation and incision in Fortymile Wash, which drains the eastern slope of Yucca Mountain, are closely linked to Pleistocene climate cycles. Formation of pedogenic cement is favored under wetter...
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2006.2420(09)
... clasts. The gypsum was subsequently transformed into anhydrite at burial conditions. During exhumation, anhydrite was hydrated back to gypsum, a gypsum overgrowth rich in F, Na, K, Cl, and Al formed on the original gypsum grains, and the pore spaces were filled with gypsum cement. Detrital modes...
Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2416(13)
... origin through sedimentologic and petrographic evidence. An accumulation of thin sheets of displacive calcite layers found in a decimeter-thick horizon of anastomosing veins within the upper portion of a red mudstone is correlated to calcite cement found in the overlying sandstone. Based on petrography...
Series: GSA Special Papers
Published: 01 January 1994
DOI: 10.1130/SPE287-p145
.... Petrographic and geochemical evidence for deep infiltration of dilute meteoric fluids during late Turonian subaerial exposure of Carlile strata, and relatively small marine phreatic–meteoric phreatic δ 18 O shifts in carbonate cements, are suggestive of humid paleoclimates along the eastern margin...
Series: GSA Special Papers
Published: 01 January 1993
DOI: 10.1130/SPE279-p23