نتایج جستجو برای: sedimentary model
تعداد نتایج: 2113533 فیلتر نتایج به سال:
Massive red or gray mudstones make up much of the fine-grained sedimentary rocks of the Newark Supergroup. In fact, the upper third of most sedimentary cycles in the fine-grained facies of most Newark basins is massive mudstone (division 3 of Olsen, 1984). Massive mudstones have not, however, been studied or described nearly as fully as conglomerates, sandstones, and laminated shales. This lack...
Paleocurrents are sedimentological features contained in all sedimentary deposits, enabling the direction of movement of the sediment and the containing fluid at the time of deposition to be determined. This database contains paleocurrent directions and other relevant associated data from published sources and theses and dissertations for the entire Phanerozoic and Precambrian for all continent...
Multichannel seismic-reflection data collected on the Peru margin as part of Leg 112 of the Ocean Drilling Program predrilling site survey define some tectonic and sedimentary features of the Lima and Yaquina basins. A narrow accretionary prism is imaged at the toe of the trench slope in both areas. Landward of the accretionary prism is a transition zone that may be underlain by older accreted ...
The oxidation and reduction that occur during early diagenesis of sediments has been studied in the interstitial waters of a rapidly accumulating sedimentary sequence from the Mediterranean margin of Spain. A series of reactions that are mediated by progressively lower free energy derived from oxidation of organic matter is evident in the sedimentary sequence. Iron and manganese are rapidly red...
Airborne electromagnetic (AEM) surveys carried out around the globe produce thousands of km of data every year. Because of the enormous computational costs involved in a full 3D inversion, these data are usually inverted using a 1D forward model. The 1D model assumption is legitimate in quasi layered sedimentary areas. In some cases the output models are simply stitched together (Auken et al., ...
abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...
A constrained nonlinear optimization method based on nonlinear programming techniques has been applied to map geometry of bedrock of sedimentary basins by inversion of gravity anomaly data. In the inversion, the applying model is a 2-D model that is composed of a set of juxtaposed prisms whose lower depths have been considered as unknown model parameters. The applied inversion method is a nonli...
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