Results 251 to 260 of about 65,526 (293)

A shallow mantle source for the Chang'e 5 lavas reveals how top-down heating prolonged lunar magmatism. [PDF]

Sci Adv
Elardo SM, Cone KA, Siegler MA, Williams SJ, Palin RM.   +4 more
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Diamonds and the Geology of Mantle Carbon

Reviews in Mineralogy and Geochemistry, 2013
### Introduction Earth’s carbon, derived from planetesimals in the 1 AU region during accretion of the Solar System, still retains similarities to carbon found in meteorites (Marty et al. 2013) even after 4.57 billion years of geological processing.
Pierre Cartigny, Daniel J Frost, Fabrizio Nestola   +2 more
exaly   +3 more sources

Experimental Studies of Shear Deformation of Mantle Materials: Towards Structural Geology of the Mantle

Pure and Applied Geophysics, 1998
A brief outline is given on experimental studies carried out in the Minnesota Mineral and Rock Physics Laboratory of microstructural evolution and rheology of mantle mineral aggregates or their analogues, using a simple shear deformation geometry.
Shun-Ichiro Karato, D L Kohlstedt
exaly   +3 more sources

Sedimentary responses to the Dongwu movement and the influence of the Emeishan mantle plume in Sichuan Basin, Southwest China: significance for petroleum geology

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
exaly   +2 more sources

Evidence for Global Synchronism in Mantle Plume Convection, and Possible Significance for Geology

Nature, 1972
Volume 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 ...
exaly   +2 more sources

The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure

Earth-Science Reviews, 2013
Abstract The tectonic evolution of the circum-Arctic, including the northern Pacific, Siberian and North American margins, since the Jurassic has been punctuated by the opening and closing of ocean basins, the accretion of autochthonous and allochthonous terranes and associated deformation.
Grace E Shephard, R Dietmar Müller, Maria Seton   +2 more
exaly   +2 more sources

12. Diamonds and the Geology of Mantle Carbon

2013
Steven B Shirey, Pierre Cartigny, Daniel J Frost   +2 more
exaly   +2 more sources

Geology of the Crust and Mantle, Western United States

Science, 1964
Seismic 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, 1991
Abstract 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.
openaire   +1 more source