Results 71 to 80 of about 85,756 (294)

Genetic types and sources of Lower Paleozoic natural gas in the Daniudi gas field, Ordos Basin, China

open access: yesEnergy Exploration & Exploitation, 2017
The molecular composition, stable carbon and hydrogen isotopes, and light hydrocarbons of the Lower Paleozoic natural gas in the Daniudi gas field in the Ordos Basin were investigated to study the geochemical characteristics.
Xiaoqi Wu   +8 more
doaj   +1 more source

Lithospheric 3D gravity modelling using upper-mantle density constraints: Towards a characterization of the crustal configuration in the North Patagonian Massif area, Argentina [PDF]

open access: yes, 2017
The North Patagonian Massif is an Argentinean plateau that has an average height of 1200 m and stands from 500 to 700 m above the neighboring areas. During Paleogene, it suffered a sudden uplift of more than 1200 m without noticeable internal deformation;
Aragon, Eugenio   +5 more
core   +2 more sources

Induced Earthquakes in the Southern Delaware Basin, Texas, Are Bound by a Geomechanically Controlled Maximum Magnitude

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract In this paper we document the first example‐the southern Delaware Basin‐where widespread induced triggered (as opposed to “driven”) seismicity across a large area exhibits a maximum magnitude truncation. The most likely cause of this truncation is that although the shallow faults in this area are many km in length, they are structurally ...
James P. Verdon, Ryan Schultz
wiley   +1 more source

Zircon U–Pb ages of the Paleozoic volcaniclastic strata in the Junggar Basin, NW China

open access: yesOpen Geosciences
A large set of Paleozoic volcaniclastic rocks is exposed in the northwestern margin of the Junggar Basin from the southern part of the Central Asian Orogenic Belt.
Chun Fan
doaj   +1 more source

ABOUT LITHOMINERALOGICAL COMPOSITION OF ANCIENT SEDIMENTARY DIAMONDIFEROUS ROCKS

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2018
Litho-mineralogical and structural-formation generation features of Upper Devonian-Carboniferous crusts of weathering on terrigenous-carbonate rocks, kimberlites and deposits enriched by products of their redeposition, have been studied, that allowed ...
N. N. Zinchuk
doaj   +1 more source

Textural and Lithologic Differences of Cretaceous, Tertiary, and Quaternary Gravels of South Arkansas [PDF]

open access: yes, 1987
Stream gravels have been derived from the Ouachita Mountains since at least Cretaceous times. Past studies have assigned ages to gravel deposits in the basins of the Saline and Little Missouri Rivers on the basis of altitude above local floodplains. This
Wood, Lesli
core   +2 more sources

Late Triassic Hydroclimatic Changes in Central China Linked to Evolving Mountain Topography

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract During the Late Triassic, tropical Pangea drifted northward into subtropical latitudes and became progressively drier. In contrast, South China, despite experiencing a similar latitudinal shift, transitioned from an arid to humid climate. Based on the sedimentary record of the Zigui Basin, this study constrains the arid to humid climatic shift
Rong Chai   +7 more
wiley   +1 more source

Source of the Upper Paleozoic natural gas in the Dingbei area, Ordos Basin, China

open access: yesJournal of Natural Gas Geoscience, 2019
The Dingbei area is an important exploration area in the Ordos Basin for SINOPEC, and natural gas exploration in the Upper Paleozoic strata in the area achieved a great breakthrough in recent years.
Xiaoqi Wu   +5 more
doaj   +1 more source

Carbonate sedimentology: An evolved discipline

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley   +1 more source

Gut microbiota as a trigger of accelerated directional adaptive evolution. Acquisition of herbivory in the context of extracellular vesicles, microRNAs and inter-kingdom crosstalk [PDF]

open access: yes, 2017
According to a traditional view, the specific diet in vertebrates is one of the key factors structuring the composition of the gut microbiota. In this interpretation, the microbiota assumes a subordinate position, where the larger host shapes, through ...
Romano, Marco
core   +1 more source

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