Showing papers in "Sedimentary Geology in 2003"

TL;DR: The basin-fill history of these geo-tectonic provinces varied considerably as mentioned in this paper due to the location of the basin at the juncture of three interacting plates, viz., the Indian, Burma and Tibetan (Eurasian) Plates.

TL;DR: In this paper, a new model for predicting the long-term flux of sediment from river basins to the coastal ocean is applied to a global data set of 340 river basin basins.

TL;DR: Detrital zircon grains (n=468) from eolian sandstones of Permian and Jurassic sand seas on the Colorado Plateau of southwest Laurentia fall into six separable age populations defined by discrete peaks on age probability plots as discussed by the authors.

TL;DR: In this article, the authors used a simple elastic model in compression to explain the rapid subsidence of the South Caspian Basin. But they did not consider the younger, much more rapid Pliocene-Quaternary phase of subsidence that occurred simultaneously with the uplift and erosion of the Caucasus Orogen.

TL;DR: Sediment cores from the Ganges-Brahmaputra delta in Bangladesh were examined for sedimentological character, clay mineralogy, elemental trends (C, N, S), and 14C geochronology to develop a model for the sedimentary sequence resulting from lower delta plain progradation in the late Holocene as discussed by the authors.

TL;DR: In this paper, the authors quantify the plausible time scales of clastic sediment supply variations at the entrance of sedimentary basins based on the sedimentary system concept, which simplifies natural systems by dividing them into three zones of dominant processes: the erosion, the transfer, and the sedimentation subsystems.

TL;DR: The authors presented a comprehensive overview of the Ganges dispersal system behavior since the last interstade, which reveals major, coeval responses to changes in the South Asian monsoon.

TL;DR: In this paper, the effects that spatial and temporal variations in tectonics and sediment supply have had on deltaic processes and sequence character are discussed through a discussion of the effects of spatial and time variations in sediment and tectonic processes.

TL;DR: In this article, a conceptual model of spatio-temporal grain-size variation based on dynamic populations is introduced, where each dynamic population results from a characteristic combination of production and transport mechanisms that corresponds to a distinct subpopulation in the data analysed.

TL;DR: In this paper, the Sanga do Cabral (Early Triassic) and the Santa Maria (Middle to Late Triassic), a second-order depositional sequence, is estimated based on fossil tetrapods, especially procolophonids.

TL;DR: In this article, a model of the subsidence history of the Black Sea basin is presented, showing that downward bending of the lithosphere beneath the basin due to compressional deformation could be the cause of this rapid additional subsidence.

TL;DR: In this paper, outcrop analogues of glaciofluvial gravel-bed deposits are used for a process-based analysis of sedimentary heterogeneities, which in turn are transformed into hydraulic parameters.

TL;DR: In this article, a correlation and sequence stratigraphy study of Jurassic successions has been carried out in the main sedimentary basins of northeast Iberia, i.e., Asturias, Basque-Cantabrian, and Iberian basins, based on the identification of transgressive-regressive cycles.

TL;DR: In this paper, the authors examined the sedimentological and stratal characteristics of outcropping last glacial braidplain deposits, and then traces oscillations in the position of the fluvial-marine transition over several late Quaternary sea level cycles using high-resolution seismic reflection profiles of the Canterbury shelf and slope.

TL;DR: In this article, the authors used ground-penetrating radar (GPR) and vibracores to study the channel-belt structures of the Niobrara River.

TL;DR: In this paper, mineralogic and stratigraphic data indicates that the two rivers have changed position several times during the Holocene and that they have rapidly migrating braided channels during sea level lowstand.

TL;DR: In this paper, the authors investigated the evolution of a tidal-current field in the Yellow Sea and East China Sea (YECS) in response to the sea-level rise since the last glacial maximum (LGM) using a two-dimensional tidal model, with special attention to changes in the sedimentary environment of the continental shelf region.

TL;DR: In this article, the authors reconstruct the depositional events related to the Messinian Salinity Crisis (MSC) of the Mediterranean is generally hampered by an incomplete stratal record in the circum-Mediterranean basins.

TL;DR: The Mugello Basin is an intermontane asymmetric basin, trending WNW-ESE and filled with Pliocene-Pleistocene alluvial and lacustrine deposits as mentioned in this paper.

TL;DR: In this paper, the evolution of the subsidence history of the western part of the Tethyan margin of Morocco has been modelled, and five regions of Morocco have been modeled, the Essaouira and Missour basins, the Middle and High Atlas and the High Plateaux.

TL;DR: In this paper, a facies model for siliceous hot spring deposits at Yellowstone National Park, Wyoming is presented, which is composed of up to eight cumulative hot spring depositional facies: (1) vent (>95 °C), (2) proximal vent ( Precipitation of sinter is the result of abiotic and biotic processes.

TL;DR: In this paper, the authors used petrographic, isotopic and seismic characteristics to characterize the Pleistocene development of the Great Barrier Reef and found that reef growth on the inner shelf initiated later than on the outer shelf, and that true reef turn-on in outer shelf areas, as represented by the main reef section in Ribbon Reef 5, was preceded by a transitional period of intermittent reef development.

TL;DR: The sedimentology of high-stage flood deposits, with the definition of sedimentary environments and their characteristic sequences, along two bedrock reaches of the Tagus River (Central Spain) is described in this paper.

TL;DR: In this paper, the authors analyzed the Miocene and Pliocene subsidence of the tectonic platforms in the Romanian Carpathians foreland using standard 1D backstripping techniques for individual wells, combined in two regional sections and six contour maps.

TL;DR: In this paper, the authors modeled the subsidence of three Mesozoic basins in Tunisia by using well data, seismic lines and field data, with an attempt to relate the succession of events deduced from subsidence evolution analysis to the geodynamic evolution of the northern African margin.

TL;DR: In this article, the authors show that the relationship between threshold shear velocity and grain size basically follow the Bagnold-type equation for the grain size d>0.1 mm.

TL;DR: The lower Miocene Latium-Abruzzi platform was a low-angle ramp that developed under tropical-to-subtropical conditions, but was dominated by bryomol and rhodalgal sediment associations.

TL;DR: In this article, the authors studied the anastomosing system of the upper Narew River, which consists of a network of interconnected channels and found that the peat layer is predominantly late Holocene in age.