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Clay Sedimentation Cretaceous

  • 45 Clay Mineralogy of the Lower Cretaceous DeepSea

    45 Clay Mineralogy of the Lower Cretaceous DeepSea

    The clay mineralogy of Lower Cretaceous deep-sea fan sediment in the western North Atlantic is dominated by smectite in most intervals and by illite in samples from intervals of high sand input.

  • The origin of the clay minerals at the Cretaceous

    The origin of the clay minerals at the Cretaceous

    The distinctive Mg-smectite that is the predominant clay mineral in the Cretaceous Tertiary KT boundary marl at Stevns Klint Denmark that is the Fish Clay which has been previously believed to have formed from impact-derived glass is also present in the upper of two marls of probable early Danian age at Limhamn Quarry Sweden approximately 8 m above the KT boundary.

  • CiteSeerX 37 CRETACEOUS CLAY MINERALOGY OF THE

    CiteSeerX 37 CRETACEOUS CLAY MINERALOGY OF THE

    Cretaceous sediments encountered in Hole 603B contain a 17 smectite as the principal clay mineral with lesser amounts of illite kaolinite and randomly interstratified illitesmectite IS. No evidence of smectite to IS transfor-mation with depth is seen in the interval between 1040 and 1570 m below the sediment surface.

  • Influence of tectonics and palaeoenvironment on late

    Influence of tectonics and palaeoenvironment on late

    The Late Cretaceous sedimentary sequence in the Upper Benue Trough consists of seven formations. Outcrop samples from the type localities of these units were analysed by Xray diffraction for their day mineral content. The composition and distribution of the clay minerals are influenced by tectonics relief and water depth.

  • Cretaceous Sedimentation Sacramento Valley California

    Cretaceous Sedimentation Sacramento Valley California

    Upper Jurassic and Cretaceous sedimentary rocks more than 35000 feet thick are exposed along the west side of the Sacramento Valley of California. To ascertain the framework in which the sediments were deposited a detailed study of these rocks was made in the Cache Creek-Rumsey Hills area and a general study was made at other localities.

  • Cretaceous Period1450 to 660 MYA US National Park

    Cretaceous Period1450 to 660 MYA US National Park

    Jan 04 2021 Sedimentation into the Cretaceous interior basin from the uplifted area was rapid and sediment loading led to downwarping of the basin along the western margin. As the shoreline continued to advance into eastern Utah and western Colorado the river-dominated system changed into a coastal plain with swamps lagoons and beaches.

  • Thermal models and clay diagenesis in the Tertiary

    Thermal models and clay diagenesis in the Tertiary

    Thermal models and clay diagenesis in the Tertiary-Cretaceous sediments of the Alava block Basque-Cantabrian basin Spain J. AROSTEGUI 1 F. J. SANGU ESA 1 F. NIETO 2 AND J. A. URIARTE 3 1 Departamento de Mineralog a y Petrolog a Facultad de Ciencia y Tecnolog a Universidad del Pa sVascoEHU Apdo.

  • Paleogene and Cretaceous sediment cores from the

    Paleogene and Cretaceous sediment cores from the

    By the end of the Early Cretaceous the axis of spreading had jumped east of Madagascar which re- sulted in a period of stabilization along the East African margin. A Late Cretaceous transgression resulted in widespread deepwater clay and mud facies accumulating in offshore basins and similar conditions continued into the Paleogene.

  • HistoricalCretaceous System ILSTRAT

    HistoricalCretaceous System ILSTRAT

    The southern Illinois Cretaceous rocks are largely nonmarine sand containing beds of lignitic silt and clay lignite and gravel. The major part of the Cretaceous in this area is assigned to the McNairy Formation but the patches of gravel at the base are assigned to the Tuscaloosa Formation and a thin marine sandy silt at the top is assigned.

  • Minerals Free FullText Practical Application of the

    Minerals Free FullText Practical Application of the

    It will become possible to identify periods in the Cretaceous sedimentation of the Primorye Region which may be associated with global biotic and abiotic events in the history of the Earth113115 110112 103 105 107.

  • PDF Lower Cretaceous Alisitos Formation at Punta San

    PDF Lower Cretaceous Alisitos Formation at Punta San

    Ciencias Marinas 2004 302 365380 Lower Cretaceous Alisitos Formation at Punta San Isidro Coastal sedimentation and volcanism Formaci n Alisitos del Cret cico temprano en Punta San Isidro Sedimentaci n costera y vulcanismo Jonathan L. Payne1 Markes E.

  • Mud dispersal across a Cretaceous prodelta Storm

    Mud dispersal across a Cretaceous prodelta Storm

    Keywords Alberta clay aggregates Cretaceous Dunvegan Formation uid mud prodelta storms wave-enhanced sediment gravity ow. INTRODUCTION The erosion transport and deposition of mud are currently subject to intense interest.

  • A Short Duration of the CretaceousTertiary Boundary Event

    A Short Duration of the CretaceousTertiary Boundary Event

    Mar 09 2001 This observation indicates that the bolide associated with the Cretaceous-Tertiary K-T extinction event was not accompanied by enhanced solar system dustiness and so could not have been a member of a comet shower. The use of helium-3 as a constant-flux proxy of sedimentation rate implies deposition of the K-T boundary clay in 10 2 103.

  • 20 PALYNOLOGY OF MIDDLE CRETACEOUS BLACK

    20 PALYNOLOGY OF MIDDLE CRETACEOUS BLACK

    In the controversy concerning the origin of the black clay facies in the middle Cretaceous Atlantic basin the type of organic matter involved plays a central role. On several DSDP legs e.g.

  • Comparative mineralogical and geochemical clay

    Comparative mineralogical and geochemical clay

    The clay sedimentation patterns in the North and South Iberian sections across the Cretaceous-Tertiary passage are controlled overwhelmingly by regional or local geodynamic and diagenetic phenomena. Thus any global namely extraterrestrial influence cannot be identified.

  • The origin of the clay minerals at the Cretaceous

    The origin of the clay minerals at the Cretaceous

    The distinctive Mg-smectite that is the predominant clay mineral in the Cretaceous Tertiary KT boundary marl at Stevns Klint Denmark that is the Fish Clay which has been previously believed to have formed from impact-derived glass is also present in the upper of two marls of probable early Danian age at Limhamn Quarry Sweden approximately 8 m above the KT boundary.

  • Pericontinental fractionation of Cretaceous clays from

    Pericontinental fractionation of Cretaceous clays from

    The prevailing idea about the abundance of smectite in Cretaceous sediment in the North Atlantic was that the abundance of smectite indicated that there was a monsoonal climate. Smectite formation occurred in low-lying areas presumably in vertisols along the eastern seaboard of North America.

  • Climate tectonics and meteoritic impact expressed by

    Climate tectonics and meteoritic impact expressed by

    expressed by clay mineral sedimentation across the Cretaceous-Tertiary boundary at Blake Nose Northwestern Atlantic F.MARTI NEZ-RUIZ1 M. ORTEGA-HUERTAS2ANDI.PALOMO2 1InstitutoAndaluz deCiencias laTierraFacultad CienciasAvda. Fuentenuevasn. 18002GranadaSpainand 2Departamento deMineralog ayPetrolog aFacultad CienciasAvda.

  • CiteSeerX 37 CRETACEOUS CLAY MINERALOGY OF THE

    CiteSeerX 37 CRETACEOUS CLAY MINERALOGY OF THE

    Cretaceous sediments encountered in Hole 603B contain a 17 smectite as the principal clay mineral with lesser amounts of illite kaolinite and randomly interstratified illitesmectite IS. No evidence of smectite to IS transfor-mation with depth is seen in the interval between 1040 and 1570 m below the sediment surface.

  • PDF Geological Factors Controlling Clay Mineral Patterns

    PDF Geological Factors Controlling Clay Mineral Patterns

    The clay sedimentation patterns in the North and South Iberian sections across the Cretaceous-Tertiary passage are controlled overwhelmingly by regional or.

  • Influence of tectonics and palaeoenvironment on late

    Influence of tectonics and palaeoenvironment on late

    The Late Cretaceous sedimentary sequence in the Upper Benue Trough consists of seven formations. Outcrop samples from the type localities of these units were analysed by Xray diffraction for their day mineral content. The composition and distribution of the clay minerals are influenced by tectonics relief and water depth.

  • Trace Elements in CretaceousTertiary Boundary Clay at

    Trace Elements in CretaceousTertiary Boundary Clay at

    In 1980 Alvarez et al. reported high Ir concentrations for the Cretaceous-Tertiary hereafter KT boundary layer suggesting an impact of extraterrestrial material as a possible cause of the sudden mass extinction at the end of the Cretaceous period. Since then high Ir abundances have been reported for KT layers all over the world. Iridium enrichments were alternatively explained in terms.

  • PDF Upper JurassicLower Cretaceous Source Rocks in the

    PDF Upper JurassicLower Cretaceous Source Rocks in the

    Jul 30 2021 Upper JurassicLower Cretaceous Source Rocks in the North of Western Siberia Comprehensive Geochemical Characterization and Reconstruction of Paleo-Sedimentation Conditions. by high clay.

  • Rates of Deltaic Sedimentation and Intrabasin Deformation

    Rates of Deltaic Sedimentation and Intrabasin Deformation

    Similar rates are inferred from radiometric dates for Late Cretaceous sedimentation in the region of the Rocky Mountains and Great Plains. Slow rates approximating 1 inch1000 years were prevalent near the geographic center of the basin during deposition of rock units such as the Niobrara Formation.

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