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Occurrence, genesis and environmental significance of schwertmannite in re-flooded Acid Sulfate Soils in the Lower Murray Reclaimed Irrigation Area
genesis environmental significance schwertmannite re-flooded Acid Sulfate Soils the Lower Murray Reclaimed Irrigation Area
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2012/3/30
The Lower Murray Reclaimed Irrigation Area (LMRIA) comprises approximately 5,000ha of flood-irrigated agricultural land located on the floodplain of the River Murray between Mannum and Lake Alexandrin...
PALYGORSKITE, SEPIOLITE, AND OTHER CLAY MINERALS IN LEG 41 OCEANIC SEDIMENTS: MINERALOGY, FACIES, AND GENESIS
PALYGORSKITE SEPIOLITE OTHER CLAY MINERALS
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2011/11/4
Leg 41 holes, drilled near the northwest margin of Africa, penetrated Mesozoic and Cenozoic sediments.The ese sediments contains
montmorillonite, kaolinite, hydromica, chlorite, m...
Genesis and distribution of palygorskite and associated clay minerals in soils and sediments of southern Mashhad
Palygorskite Loess Clay minerals Paleoclimate Granite
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2011/11/7
The occurrence of palygorskite and its formation conditions in soils and sediments were studied along a transect covering granitic hilly lands to marly hilly lands in southern Mashhad. Based on format...
Genesis and distribution of palygorslkite and associated clay minerals in soils and sediments of southern Mashhad
Palygorskite Loess:Clay minerals Paleoclimate Granite
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2011/11/7
The occurrence of palygorskite and its formation conditions in soils and sediments were studied along a transect covering granitic hilly lands to marly hilly lands in southern Mashhad. Based on format...
Genesis and Clay Mineralogical Investigation of Highly Calcareous Soils in Semi-Arid Regions of Southern Iran
Calcium carbonate accumulation clay eluviation-illuviation neoformation semi-arid region
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2011/11/7
Genesis and Clay Mineralogical Investigation of Highly Calcareous Soils in Semi-Arid Regions of Southern Iran.
Genesis of selected gypsiferous soils in southeastern Iran
gypsiferous soils southeastern Iran Genesis
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2011/11/10
The main objective of this research was to investigate the mode of gypsum deposition and the source of clay minerals in selected gypsiferous soils in Rafsanjan area,southeastern Iran.
Identification and Genesis of Clay Minerals in Soils from Farrokhshahr Area,Chaharmahal & Province
Clay minerals X-ray diffraction Electron microscope Infrared
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2011/11/8
Identification and Genesis of Clay Minerals in Soils from Farrokhshahr Area,Chaharmahal & Province.
Palygorskite genesis through silicate transformation in Tunisian continental Eocene deposits
palygorskite illite Tunisia Eocene
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2011/11/2
The mineralogical and geochemical characteristics of Eocene continental sedimentsin south central Tunisia (Chebket Bouloufa and Jebel Hamri) and in north central Tunisia (Jebel Lessouda and Jebel Rhe磑...
Genesis of Dioctahedral Phyllosilicates During Hydrothermal Alteration of Volcanic Rocks: II. The Broadlands-Ohaaki Hydrothermal System, New Zealand
Crystallization Dioctahedral Phyllosilicates Hydrothermal System Illite-Smectite (I-S) Polytypism Transmission Electron Microscopy
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2011/12/2
Abstract: The clay mineral textures, assemblages, formation mechanisms, and controlling geological parameters relating to alteration of silicic volcanic rocks by hydrothermal solutions, in core sample...
Genesis of Dioctahedral Phyllosilicates During Hydrothermal Alteration of Volcanic Rocks: I. The Golden Cross Epithermal Ore Deposit, New Zealand
1M polytype Dioctahedral Clay Minerals Epithermal Hydrothermal Alteration Illite-Smectite (I-S) Neoformation Smectite Transmission Electron Microscopy (TEM)
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2011/12/2
Abstract: To characterize the evolution of dioctahedral interstratified clay minerals in the Golden Cross epithermal deposit, New Zealand, hydrothermally altered volcanic rocks containing the sequence...
Chemical Changes and Genesis of Secondary Minerals during the Alteration of Biotites from Ignimbrites in the Tazzeka Mountain (Morocco)
Alteration Biotite Chlorite Ignimbrite Illite Structural Formula
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2011/12/6
Abstract: The Tazzeka Mountain, located approximately 20 km south of Taza, eastern Morocco, is composed of a Westphalian volcano-sedimentary complex. It contains rhyolitic ignimbrites with the followi...
The Genesis of a Mordenite Deposit by Hydrothermal Alteration of Pyroclastics on Polyegos Island, Greece
Clinoptilolite Greece Heulandite Hydrothermal Alteration Mordenite Polyegos Pyroclastics Rhyolite Zeolites
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2011/12/22
Abstract: The vitric component of the silicic pyroclastic flows and surge deposits (Prassa ignimbrite unit), from the northwestern exposures of the pyroclastics formation of Polyegos Island, South Aeg...
Geology, Occurrence, and Genesis of Eski篹hir Sepiolites, Turkey
Environment Lacustrine Magnesite Sepiolite Turkey
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2011/12/1
Abstract: The occurrences of sepiolite beds and nodules in alkaline and saline Miocene Eski篹hir lake deposits provide unique examples of ancient lacustrine environments. Stockwork-type magnesite depos...
Origin and Clay-Mineral Genesis of the Cretaceous/Tertiary Boundary Unit, Western Interior of North America
Claystone Ejecta Glass alteration Halloysite Kaolinite K/T boundary unit Meteorite impact SEM XRD
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2011/12/1
Abstract: A 3-cm-thick, two-layered clay unit that records mineralogic and textural evidence of a catastrophic event that occurred at a time now marked as the end of the Cretaceous Period was preserve...
Mineralogy and Genesis of Clays in Postmagmatic Alteration Zones, Makurazaki Volcanic Area, Kagoshima Prefecture, Japan
Makurazaki volcanic area Alteration aureoles Mode of occurrence Mineralogical properties Sudoite Tosudite Rectorite
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2012/1/4
Two distinct zonal sequences of clay minerals (H- and L-type) were found around silicified rocks in the Makurazaki volcanic area, Kagoshima Prefecture, Japan. The clay mineral sequences from the inner...