Results 261 to 270 of about 3,210,388 (357)

Th and U in sedimentary rocks: crustal evolution and sedimentary recycling

Deep Sea Research Part B. Oceanographic Literature Review, 1980
Thorium and uranium abundances in sedimentary rocks increase at the Archean–Proterozoic boundary, in response to an episodic change in the composition of the upper continental crust. Uranium decreases and Th/U increases during post-Archean time due to significant recycling of sedimentary rocks.
Scott M. McLennan, S. R. Taylor
exaly   +4 more sources

Sedimentary Evolution and Resultant Geological Landscapes

World Geomorphological Landscapes, 2019
Details of the subsurface geology are scarce but in Late Palaeozoic times, the Maltese Islands lay close to the Equator in the Tethys Ocean, that extended between the continents of Gondwana and Laurasia. The oldest subsurface rocks recorded offshore in southeast Sicily are Late Triassic intertidal dolomites (Gela Formation), overlain by Jurassic Black ...
S. Scerri
openaire   +2 more sources

Cl, Br, B, Li, and noble gases isotopes to study the origin and evolution of deep groundwater in sedimentary basins: a review

Environmental Chemistry Letters, 2022
Wanjun Jiang   +6 more
semanticscholar   +3 more sources

Permian to early Triassic tectono-sedimentary evolution of the Mahu sag, Junggar Basin, western China: sedimentological implications of the transition from rifting to tectonic inversion

, 2021
The Permian to early Triassic terrestrial successions in the Mahu sag constrain the tectonic evolution of northwestern edge of the Junggar basin. This study analyzes the sequence stratigraphy of the Mahu sag in order to understand the interplay between ...
Wenbin Tang   +5 more
semanticscholar   +1 more source

Tectonic-sedimentary evolution of a continental rift basin: A case study of the Early Cretaceous Changling and Lishu fault depressions, southern Songliao Basin, China

, 2021
The Songliao Basin is a large continental basin in Northeast China; the southeastern part contains many deep grabens and half-grabens that constitute the Changling and Lishu fault depressions.
Xiongbing Yang   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy