Search Results - "Arnott, R. W. C"
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Stratal characteristic and depositional origin of two-part (mud-poor overlain by mud-rich) and associated deep-water strata; components in a lateral depositional continuum related to particle settling in negligibly sheared mud-rich suspensions
Published in Journal of sedimentary research (01-06-2022)“…Deep-marine strata consisting of a sandy basal part overlain sharply by a muddier and mud-clast-rich upper part are increasingly being recognized in the…”
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Systematic vertical organization of matrix-rich and associated matrix-poor sandstones in ancient deep-marine slope and basin-floor deposits
Published in Geosphere (Boulder, Colo.) (01-04-2023)“…Deep-marine two-part strata consisting of a sand-rich basal part overlain sharply by a mud-rich upper part have been termed linked debrites, hybrid event beds,…”
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Composition and architecture of braided and sheetflood-dominated ephemeral fluvial strata in the Cambrian-Ordovician Potsdam Group; a case example of the morphodynamics of early Phanerozoic fluvial systems and climate change
Published in Journal of sedimentary research (01-06-2016)“…Two fluvial facies associations, braided and ephemeral fluvial, are recognized in strata of the Cambrian-Ordovician Potsdam Group in the Ottawa Embayment and…”
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Deep-marine pseudo dune cross-stratification-similar, but completely different
Published in Journal of sedimentary research (01-03-2017)“…High-angle cross-stratification related to the downflow migration of subaqueous dunes is common in the continental sedimentary record but is puzzlingly…”
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Laterally accreting sinuous channels and their deposits; the Goldilocks of deep-water slope systems
Published in Journal of sedimentary research (01-05-2021)“…Channels with a sinuous planform are common in both continental and deep-marine environments on Earth, and similarly in high-resolution images of the surface…”
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Turbidites, and the case of the missing dunes
Published in Journal of sedimentary research (01-06-2012)“…In the deep-marine stratigraphic record classical turbidites are common and when complete comprise five vertically stacked units, which in ascending order are…”
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Provenance of the incipient passive margin of NW Laurentia (Neoproterozoic); detrital zircon from continental slope and basin floor deposits of the Windermere Supergroup, southern Canadian Cordillera
Published in Lithosphere (01-01-2021)“…The origin of the passive margin forming the paleo-Pacific western edge of the ancestral North American continent (Laurentia) constrains the breakup of Rodinia…”
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Experiments on oscillatory-flow and combined-flow bed forms; implications for interpreting parts of the shallow-marine sedimentary record
Published in Journal of sedimentary research (01-05-2005)“…Analog laboratory experiments were conducted to investigate subaqueous bed forms generated under storm-like oscillatory and combined flow. Experiments were…”
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Stratal architecture and origin of lateral accretion deposits (LADs) and conterminuous inner-bank levee deposits in a base-of-slope sinuous channel, lower Isaac Formation (Neoproterozoic), East-Central British Columbia, Canada
Published in Marine and petroleum geology (01-06-2007)“…In the Castle Creek study area, a vertically dipping, 2.5 km-thick succession of basin-floor to base-of-slope Neoproterozoic rocks are superbly exposed. In…”
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Journal Article Conference Proceeding -
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Stratal attributes and evolution of asymmetric inner- and outer-bend levee deposits associated with an ancient deep-water channel-levee complex within the Isaac Formation, southern Canada
Published in Marine and petroleum geology (01-03-2011)“…Isaac Channel 3 is a rare outcrop example of a perpendicular cut through a sinuous deep-water channel, and also where levee deposits formed on opposite sides…”
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The Parasequence Definition--Are Transgressive Deposits Inadequately Addressed?
Published in Journal of sedimentary research (15-02-1995)Get full text
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Anatomy and evolution of a slope channel-complex set (Neoproterozoic Isaac Formation, Windermere Supergroup, southern Canadian Cordillera); implications for reservoir characterization
Published in Journal of sedimentary research (01-02-2007)“…A detailed architectural analysis was conducted in Isaac Unit 5 of the Isaac Formation in the Castle Creek area (east-central B.C., Canada). Isaac Unit 5…”
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Parallel lamination formed by high-density turbidity currents
Published in Journal of sedimentary research (01-01-2005)“…Experiments were conducted in order to investigate processes of sediment transport and deposition from sustained turbidity currents with initial…”
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Hydraulic-jump and hyperconcentrated-flow deposits of a glacigenic subaqueous fan; Oak Ridges Moraine, southern Ontario, Canada
Published in Journal of sedimentary research (01-11-2003)“…The Oak Ridges Moraine in southern Ontario is a poly-genetic moraine constructed of a number of coalesced deposits of glacifluvial and glacilacustrine origin…”
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Bedforms, Primary Structures and Grain Fabric in the Presence of Suspended Sediment Rain
Published in Journal of sedimentary research (01-11-1989)Get full text
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Influence of the Ancestral Sweetgrass Arch on Sedimentation of the Lower Cretaceous Bootlegger Member, North-Central Montana
Published in Journal of sedimentary research (16-05-1995)Get full text
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Syn-rift volcanism (ca. 670 Ma) in the lower Windermere Supergroup, southern Canadian Cordillera: New constraints on the syn- to post-rift transition for northwestern Laurentia
Published in Precambrian research (01-11-2024)“…•Mafic volcanics of the Irene Formation are inter-stratified with Sturtian diamictite.•New U-Pb zircon age dates the upper Irene Formation volcanics to…”
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Groundwater silcrete linked to brine migration in a continental rift: An alternative to the near-surface model of silcrete
Published in Geosphere (Boulder, Colo.) (07-04-2022)“…Silcretes have long been recognized as modern and ancient duricrusts, but more recently also as silicified layers precipitated at groundwater tables, termed…”
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Key future directions for research on turbidity currents and their deposits
Published in Journal of sedimentary research (01-02-2015)“…Turbidity currents, and other types of submarine sediment density flow, redistribute more sediment across the surface of the Earth than any other sediment flow…”
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