Results 71 to 80 of about 1,196 (195)

Extremely reducing conditions reached during basaltic intrusion in organic matter-bearing sediments [PDF]

open access: yes, 2012
International audienceRedox conditions in magma are widely interpreted as internally buffered and closely related to that of their mantle source regions.
Arndt, Nicholas   +6 more
core   +3 more sources

Copper isotope evidence for recycled crustal sulfides in deep mantle plume source

open access: yesCommunications Earth & Environment
Earth’s crustal materials are recycled into the mantle through subduction, but the depth and nature of recycled components remain debated. Here we report copper (Cu) isotope evidence for the involvement of recycled crustal materials in a deep-mantle ...
Junhua Yao   +7 more
doaj   +1 more source

Rapid Oil Pyrolysis in Ediacaran Carbonate Reservoirs in the Central Sichuan Basin Revealed by Analysis of the Unique Optical and Raman Spectral Features of Pyrobitumen

open access: yesApplied Sciences
Analysis of pyrobitumen in reservoirs can yield key information about hydrocarbon evolution, which may provide vital insights for deep- to ultra-deep hydrocarbon exploration in high- to over-mature petroliferous deep basins.
Yawei Mo, Luya Wu, Peng Yang, Keyu Liu
doaj   +1 more source

Modeling fluid flow in sedimentary basins with sill intrusions: Implications for hydrothermal venting and climate change [PDF]

open access: yes, 2013
Large volumes of magma emplaced within sedimentary basins have been linked to multiple climate change events due to release of greenhouse gases such as CH4.
Aarnes   +48 more
core   +1 more source

Virtual deep seismic sounding method and its applications

open access: yes地球与行星物理论评
The SsPmp seismic phase is a seismic phase in which the downward P-wave excited by the far-field direct S-wave is reflected on the Moho surface. It has the advantages of high signal energy, high signal-to-noise ratio, and is not easily affected by the ...
Minghui Zhang   +5 more
doaj   +1 more source

New timing and geochemical constraints on the Capitanian (Middle Permian) extinction and environmental changes in deep-water settings: evidence from the Lower Yangtze region of South China [PDF]

open access: yes, 2019
The Capitanian (Guadalupian) witnessed one of the major crises of the Phanerozoic and, like many other extinctions, it coincided with the eruption of a large igneous province, in this case the Emeishan Traps of SW China.
Hu, W   +5 more
core   +1 more source

Geochemistry of Late Permian Coals in the Laochang Mining Area from Eastern Yunnan: Emphasis on Mineral Matter in Coal

open access: yesApplied Sciences
The mineral matter in coal has great significance for geological evolution, and clean and fractional utilization. The Laochang mining area is one of the largest anthracite coal production bases in Southern China, and the most important coal energy base ...
Qingfeng Lu   +3 more
doaj   +1 more source

Provenance of late Paleozoic strata in the Yili Basin : implications for tectonic evolution of the South Tianshan orogenic belt [PDF]

open access: yes, 2017
This research was supported by the 973 Program under grant no. 2015CB453000, the National Natural Science Foundation of China (41502109), the Cultivating Program of Middle-Aged Key Teachers of Chengdu University of Technology (KYGG201718), Innovation ...
Cawood, Peter A.   +5 more
core   +1 more source

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