نتایج جستجو برای: lowstand
تعداد نتایج: 110 فیلتر نتایج به سال:
The Oligocene of the New Jersey continental margin is divisible into as many as eight sequences and 23 lithofacies associations, documented in a series of seven boreholes across the modern coastal plain. This paper summarizes the sequence architecture of these deposits, interpreted from high-resolution biostratigraphy and Sr-isotope chemostratigraphy, and evaluates the factors that governed pat...
Abstract Lower Goru sand intervals of Early Cretaceous age are proven reservoirs in the Indus Platform area. The delineation reservoir geometries is utmost importance while searching for stratigraphic and combination traps clastic reservoirs. data ten wells two 2D seismic lines from northern part Basin incorporated this study. These Formation correlated a third-order sequence framework to under...
Cutting samples from evaporite deposits of Member Two of Gachsaran Formation in well #1 at Ab-Teymure Oil Field have been studied by petrographic microscope, SEM with EDX attachment and XRD to identify the halite crystal shapes. This study led to recognition of three stages, including flooding, concentration and desiccation, for the formation of halite in salt pan. In the flooding stage, the fl...
Marine geological maps of the Campania region have been constructed both to a 1:25.000 and 1:10.000 scale in frame research projects financed by Italian National Geological Survey, focusing, particular, on Gulf Naples (Southern Tyrrhenian Sea), complex volcanic area where sedimentary processes strongly interacted during Late Quaternary Cilento Promontory offshore. In this paper, examples sheets...
During the lowstand sea-level phase of Last Glacial Maximum (LGM), a large part current Mediterranean continental shelf emerged. Erosional and depositional processes shaped coastal strips, while inland areas were affected by aeolian fluvial processes. Evidence both subsequent phases eustatic sea level rise can be observed on Sardinia (Italy), including submerged palaeo-shorelines landforms, ind...
Rosenfeld and Pindell (2002, 2003) hypothesized that the Gulf of Mexico evaporated to a level below the world ocean for a brief interval during the Paleocene-Eocene. Further study and the results of recent drilling support this idea and suggest that a major change in the interpretation of the Gulf’s history may be warranted. The idea originally arose to explain several major Paleocene-Eocene pa...
Review of sea-level changes during the big five mass extinctions and several lesser extinction events reveals that the majority coincide with large eustatic inflexions. The degree of certainty with which these eustatic oscillations are known varies considerably. Thus, the late Ordovician and end Cretaceous extinctions are associated with unequivocal, major regressions demonstrated from numerous...
Abstract In this study, the available 2D seismic lines have been interpreted to understand basin development and petroleum potential of Late Cretaceous–Quaternary stratigraphy Tanga offshore Basin in Tanzania. Conventional interpretation has delineated eight sedimentary fill geometries, fault properties, stratal termination patterns unconformities characterizing studied stratigraphy. The Cretac...
In order to investigate the submarine morphology of offshore Cide-Sinop from perspective Black Sea flooding, rivers, channels and some spatial data were extracted by using General Bathymetric Chart Oceans (GEBCO-2014) which is a seamless digital elevation bathymetry grid (DEM), Geographic Information System (GIS) software tools. The accuracy land rivers controlled with 1/25K topo-maps buffer ov...
This paper describes the evolution of a sector southern coastal plain Pelotas Basin, Brazil, between last Pleistocene sea-level lowstand and Holocene highstand, based on geomorphology high-resolution stratigraphy. A fluvial drainage system associated with an incised valley developed during Last Glacial Maximum (LGM) was identified. Two 2D 2.5D geophysical profiles using Ground-Penetrating Radar...
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