Results 211 to 220 of about 379,430 (254)
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Carbonates and Evaporites, 2020
The various stages of tectonic activity associated with the Dongwu movement (DM) and the associated sedimentary responses in the Sichuan Basin, Southwest China, have been analyzed and their significance for petroleum geology discussed. The analysis was based on the comprehensive analysis of field outcrops, wells, and seismic data.
Wang Su, Suyun Hu, Shuyuan Shi
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The various stages of tectonic activity associated with the Dongwu movement (DM) and the associated sedimentary responses in the Sichuan Basin, Southwest China, have been analyzed and their significance for petroleum geology discussed. The analysis was based on the comprehensive analysis of field outcrops, wells, and seismic data.
Wang Su, Suyun Hu, Shuyuan Shi
exaly +2 more sources
Geology of the Crust and Mantle, Western United States
Science, 1964Seismic refraction, gravity, phase velocity, and magnetic data, coupled with the geologic record, are all approximately satisfied by the structure shown in Fig. 9. A 20-kilometer crust under the Coast Ranges and Great Valley thickens to more than 30 kilometers under the Sierra Nevada and parts of the Basin and Range province; this whole area is ...
G A, Thompson, M, Talwani
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Currents in the mantle and the geology of continents
Tectonophysics, 1991Abstract This paper is the first of a series which have considered the possible effects of currents in the mantle upon continents. It mentions effects of aging in oceans upon the direction of slope of coastal peneplains. When oceans are young the coasts are cliffs from which peneplains dip downward on the inland side.
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Anatomy of a Venusian hot spot: Geology, gravity, and mantle dynamics of Eistla Regio
Journal of Geophysical Research: Planets, 1992Eistla Regio is a series of broad swells, each up to a few thousand kilometers in diameter, in the equatorial highlands of Venus. It is characterized by strong positive free‐air gravity anomalies, shield volcanoes, and rift systems. We present a two‐part study of the western and central portions of this Venusian hot spot.
Robert E. Grimm, Roger J. Phillips
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The Deep Roots of Geology: Tectonic History of Australia as expressed by Mantle Anisotropy 
2022<p>Australia is an old stable continent with a rich geological history. Limitations in sub-surface seismic imaging below the Moho, however, mean that is unclear to what extent, and to what depth, this rich geological history is expressed in the mantle. Studies of seismic anisotropy, which reflect past/present mantle deformation, can offer
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Earthquake calamity warning from space station: orbital dynamics coupling geology mantle convection
SPIE Proceedings, 2009It is not surprising that the earthquakes happened among clashing tectonic plate boundaries where numerous earthquake stations exist. Then, why do we need more? The significance of Sichuan and Tongshan earthquakes of China is a wakeup call that major earthquakes of logarithmic Richter scales beyond 7 could happen exactly within a single tectonic ...
Harold H. Szu, Han-Shou Liu
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Evidence for Global Synchronism in Mantle Plume Convection, and Possible Significance for Geology
Nature, 1972Volume estimates and age dating of basic, non-orogenic igneous deposits suggest synchronous discharge from many hot spots, identified as mantle plumes. The discharge fluctuations seem to mirror the histories of diverse global geological parameters. Extinction crisis of faunal evolution may reflect trace-element pollution occurring during intervals of ...
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Environmental Earth Sciences, 2018
Engineering geological problems such as slope failure may be a result of the karst process. Slope stability evaluation is an effective way to minimize the losses caused by slope failure. In this study, a methodology is developed to evaluate the slope stability.
Peng Xie +3 more
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Engineering geological problems such as slope failure may be a result of the karst process. Slope stability evaluation is an effective way to minimize the losses caused by slope failure. In this study, a methodology is developed to evaluate the slope stability.
Peng Xie +3 more
openaire +1 more source