Results 221 to 230 of about 9,063 (265)
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Phytolithic analysis of geological sediments from Panama

Antiquity, 1985
The analysis of phytoliths, microscopic pieces of silica formed within the cells of living plants, is a recent addition to archaeobotanical studies in the New World (Carbone, 1977; Pearsall, 1978; Lewis, 1981; Robinson, 1983; Piperno, 1983, 1984, in press, a; Piperno & Clary, 1984). Because these mineralized bodies are very resistant to destruction
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General aspects of sedimentation in the geological basins of France

Journal of Sedimentary Research, 1950
Abstract Erosion of the crystalline rocks of the Central Massif provided the detrital material in the continental formations of the Paris basin and, during orogenically undisturbed periods, of the Rhodanian and Aquitanian basins as well. During periods of Alpine and Pyrenean diastrophism, however, sediments derived from erosion of the
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Micropetrography of Hydrothermal Sediment and Synergy of Microorganisms in the Geological Environment

Journal of Nanoscience and Nanotechnology, 2017
In the Jurihe area of Inner Mongolia, lamellar hydrothermal sediment of Permian was recognized. These rocks were inter-bedded with volcanic rocks, altered by hot water (hydrothermal fkuid) during the synsedimentary and quasi-synsedimentary stage. The lithogeochemistry of the rock components differ from typical sedimentary rocks.
Fanli Meng   +5 more
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Sediment Transport along the Southeast Mediterranean: A geological perspective

Geo-Marine Letters, 1984
Sediment is being transported from the Nile Delta to the Israeli coast by a wave-induced longshore current carrying mainly sand, and by the geostrophic Mediterranean Current, detected in Earth Resources and Technology Satellite (ERTS) photographs through the presence of suspended sediments.
V. Rohrlicht, V. Goldsmith
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Sediments Behaviour at Basin and Geological Time Scales

61st EAGE Conference and Exhibition, 1999
Basin modelling aims to reconstruct the accumulation of hydrocarbons at basin scale, and at geological time scale, taking into account the effects of kinematics displacements, sedimentation, erosion, compaction, temperatures history, overpressures and fluids flows (water and hydrocarbons).
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Recognition of Playa Sediments in the Geologic Column.: ABSTRACT

AAPG Bulletin, 1953
Playa sediments are sometimes reported in oil-well cuttings, particularly in sediments whose age End_Page 2780------------------------------ is Miocene or younger. A careful investigation of the sedimentary properties of playa sediments of the present has revealed certain characteristics which it is believed will enable the geologist to definitely ...
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Shatsky Rise Sediments: Correlation of Lithology and Physical Properties with Geologic History: GEOLOGICAL NOTE

AAPG Bulletin, 1972
ABSTRACT Drilling on the Shatsky Rise shows that only subtle changes in the lithology, mineralogy, and physical properties of the calcareous nannoplankton ooze occur across a major unconformity. Sediments above the unconformity are late Miocene and younger, and contain an eolian and andesitic volcanic contribution in
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Discoloration of Sediments by Bacteria: GEOLOGICAL NOTES

AAPG Bulletin, 1930
Quentin D. Singewald, F. M. Van Tuyl
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GEOLOGICAL CHARACTERIZATION OF FLUVIAL SEDIMENTS

1994
Frederik van Veen   +26 more
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