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Fibrous-clay mineral formation and soil evolution in Aridisols of northeastern Patagonia, Argentina
Palygorskite Sepiolite Fluorite Soil genesis Calcic and petrocalcic horizons Chubut province of Argentina
2011/11/11
Recent studies of soil–landscape relationships in northeastern Patagonia identified fibrous-clay minerals in calcic and petrocalcic horizons
developed on old fluvio-glacial plains called “Rodados Pat...
Experimental Clay-Mineral Formation from a Subvolcanic Rock by Interaction with 1 M NaOH Solution at Room Temperature
AEM Analysis Berthierine Interstratification Lizardite NaOH Solution Smectite
2011/12/2
Abstract: The alteration process of a subvolcanic rock with calcic plagioclase, pyroxene, and olivine as major components was investigated by X-ray diffraction (XRD) and analytical and transmission el...
Burial Diagenetic Processes and Clay Mineral Formation in the Molasse Zone of Upper Austria
Austria Diagenesis High-Charged Smectite Illite-Smectite Molasse Basin
2011/12/8
Abstract: Cores of pelitic sediments (Eocene-Miocene) of the drillings Puchkirchen 1 and Geretsberg 1 (Molasse Basin, Upper Austria) have been studied to determine the mineralogical and chemical chang...
Vermiculite, mixed-layer vermiculite-phlogopite, and smectite are presently forming from igneous and metamorphic bedrock in the alpine zone of the northern Cascades, Washington. In addition, south-fac...
Clay Mineral Formation in a Deeply Weathered Boulder Conglomerate in North-East Scotland
Clay Mineral Formation Deeply Weathered Boulder Conglomerate North-East Scotland
2012/2/20
The clay minerals formed in a deeply weathered boulder conglomerate of Middle Old Red Sandstone (Devonian) age in north-east Scotland have been studied by a variety of physical and chemical techniques...
Clay Mineral Formation in Mud Pots, Yellowstone Park, Wyoming
Clay Mineral Formation Mud Pots
2011/11/17
Kaolinitic, montmorillonitic, illitic, and mixed-layer clay minerals are found in mud springs and mud pots of Yellowstone Park. A sequence of alteration is proposed as Phase I, alteration of bedrock a...