نتایج جستجو برای: sedimentary environment

تعداد نتایج: 527372  

2005
Baoping Shi James N. Brune

Two-dimensional lattice particle models have been used to simulate dynamic thrust faulting and its effects on near-fault ground motions. The lattice particle modeling approach has been demonstrated as an efficient way to model the dynamic rupture phenomena observed from a foam rubber experiment on dipping faults. We constructed a 42 dipping fault model to simulate near-fault ground motions unde...

2005
R. K. Tiwari K. N. N. Rao

Earth's history has been witness to recurrently alternating phases of catastrophic evolution and dominant tectonic deformations, contractions and extension of rifting and spreading leading to quasi-cyclic changes in sedimentary environment and various earth processes. Recent studies have shown quasi-periodicities of 32 2 Million years (Myr) in various endogenic (geomagnetic reversals, magmatic ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1388

چکیده ندارد.

2015
David A. Fike Catherine V. Rose David S. Jones Jianxin Gao Robert C. Aller Nicholas J. Tosca

Sulfur isotope ratio data (δS) have been used to provide significant insights into global biogeochemical cycling over Earth history, providing a framework for reconstructing both global redox budgets and microbial metabolic activity. However, as the record of ancient oceanic conditions becomes better resolved, reports of coeval but divergent isotopic proxies are becoming increasingly common. Th...

Journal: Geopersia 2015

This research was performed to determine the efficiency effect of sedimentary environment of Kerman City area on soil structure bycomparing natural and reconstituted consolidation curves. In this regard, four different criteria such as sensitivity strength, stresssensitivity, Schmertman criteria and the result of the uniaxial compression test were used. The base of these criteria is to compare ...

2015
H. Higashi

Massive amounts of anthropogenic radiocaesium Cs that were released into the environment by the Fukushima Daiichi Nuclear Power Plant accident in March 2011 are widely known to have extensively migrated to Pacific Ocean sediment off of eastern Japan. Several recent reports have stated that the sedimentary Cs is now stable with a remarkably heterogeneous distribution. The present study elucidate...

2017
Jeffery R. Stone Sherilyn C. Fritz Jeffery Robert Stone

Three-dimensional modeling of lake morphometry enables the calculation of lake volume, planar surface area, and basin surface area, which are critical components of a conceptual model of how planktic and benthic habitat areas change with changing lake level. We have applied three-dimensional modeling to Foy Lake, Montana, and compared model results of changing ratios of planktic and benthic hab...

Journal: Desert 2019
A. R. Karbassi M. Maghrebi M. Sadrinasab R. Lak R. Noori

Long marine sedimentary cores can be effective in paleo-climate reconstruction. The present research aims at analyzing  the temporal variation of temperature as an important climate parameter and also variations in metal concentrations (As, Ba, Cd, Li, Mo, Mg, Mn, Na, Pb, Sr, Zn, Fe, Ca, Al) of two long sedimentary cores at the Persian Gulf back to the Holocene. The obtained results revealed th...

2010
Syed A. Ali William J. Clark William Ray Moore

Oilfield Review Summer 2010: 22, no. 2. Copyright © 2010 Schlumberger. For help in preparation of this article, thanks to Neil Hurley, Dhahran, Saudi Arabia; and L. Bruce Railsback, The University of Georgia, Athens, USA. The early search for oil and gas reservoirs centered on acquiring an overall view of regional tectonics, followed by a more detailed appraisal of local structure and stratigra...

Journal: :NRIAG Journal of Astronomy and Geophysics 2022

Accurate information about soil properties is required in plant growth and yield. Hence, the rising knowledge preservation of favourable basically driven by its vital role agricultural crop productivity. Electrical Resistivity Tomography (ERT) GIS were used for site selection, suitability use topographical effect on distribution Ambrose Alli University. Twelve traverses conducted across study a...

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