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Showing 1 to 9 of 9 for “"paleocurrents"”.
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Process Sedimentology and Three-Dimensional Facies Architecture of a Fluvially Dominated, Tidally Influenced Point Bar: Middle McMurray Formation, Lower Steepbank River Area, Northeastern Alberta, Canada
… and continuous around the point bar. Analysis of paleocurrents relative to inclined-heterolithic-stratification bedding planes indicates that bend-flow modifications (BFMs) were effective in redistributing flow around the point bar. Furthermore, this suggests that Outcrop 3 is representative of an …
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Lacustrine Deltaic Deposits of the Sandstone Tongue of the Wasatch Formation, Fossil Basin, Wyoming
… parting lineation indicate north to northeast paleocurrents.</p> <p>A gastropodal limestone varying in thickness from 30 cm to one meter separates the siliciclastic sequences in outcrops over nearly the entire area. This limestone is interpreted as representing a minor lacustrlne transgression …
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The sedimentology of the Bloomington fan complex: an element of the Oak Ridges Moraine, Southern Ontario
… sediments exhibiting north and northwesterly paleocurrents. Continued advance of the southern ice, overriding the fan complex, ii produced large-scale glaciotectonic deformation structures, and deposited the Halton Till. The subaqueous fan depositional model that is postulated for the …
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Sedimentology and Regional Implications of Fluvial Quartzose Sandstones of the Lee Formation, Central Appalachian Basin
… levee and overbank deposits. Strongly unimodal paleocurrents, lack of facies that suggest low-stage reworking and paucity of lateral-accretion features indicate deposition in a single-channel, low-sinuousity, system (i.e., a low braiding index). Fluvial architecture similar to that found in the …
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Stratigraphy, sedimentology, and depositional environments of the Hell Creek Formation (Late Cretaceous) and adjacent strata, Glendive area, Montana
… and braided belts 150 to 1700 m wide. Paleocurrents parallel the belt margins and trend mostly east and southeast. Sandy siltstonea flank the sandstone and are yellowish gray to dark yellowish orange, 1 to 4 m thick, poorly sorted, laminated, cross-laminated, and fossiliferous, Shale …
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Abyssal benthonic foraminifera and the carbonate saturation of sea water and a benthonic foraminferal carbonate saturation history for the Cape Verde Basin for the last 550,000 years
The distribution of certain Atlantic Ocean benthonic foraminifera is most consistently correlated with the degree of saturation of seawater with respect to calcium carbonate. The relative abundance of cibicidids, miliolids, Uvigerina and Globocassidulina subglobosa increases in saturate water and …
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Oroclines of the Iberian Variscan belt: Tectonic and paleogeographic implications
The Western European Variscan orogenic belt is thought to represent the final in a series of Paleozoic continental collisions that culminated with the amalgamation of the supercontinent Pangea. The Iberian segment of the Variscan belt is characterized by Cantabrian orocline, which is 180º and …
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Cenozoic foreland-basin evolution in the northern Andes : insights from thermochronology and basin analysis in the Eastern Cordillera, Colombia
… Provenance data based on gravel petrography and paleocurrents reveal that these Miocene fluvial systems were sourced by Upper Cretaceous and Paleocene sedimentary units exposed to the west, in the Eastern Cordillera. Peak sediment-accumulation rates in the upper Carbonera Formation and the …
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ΣΥΜΒΟΛΗ ΣΤΗ ΓΕΩΛΟΓΙΚΗ ΜΕΛΕΤΗ ΤΟΥ ΦΛΥΣΧΗ ΤΟΥ ΜΑΚΡΥΝΟΡΟΥΣ, ΑΚΑΡΝΑΝΙΑΣ
THE STUDY OF DIFFERENT FACIES OF THE FLYSCH OF MAKRYNOROS (AKARNANIA, GREECE) GIVES THE FOLLOWING: 1. THE SANDSTONE HORIZONS CONSIST, MAINLY, OF LITHARENITES WITH CLASTIC CALCITE. THE SANDSTONES ARE "IMMATURE". 2. FOUR SEDIMENTOLOGICAL PHASES ARE DISTINGUISHED: PELITIC, SANDYPELITIC, SANDY WITH …