Results 91 to 100 of about 32,790 (232)

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

Journal 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, Chunhua Ni, Yingbin Chen, Jianhui Zhu, Kuang Li, Huasheng Zeng   +5 more
doaj   +1 more source

EMIT Reveals Elevated Calcite Signatures in Shorelines of Lake Powell and Lake Mead Exposed by Drought and Colorado River Management

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Nearly half of Earth’s seasonal freshwater storage variability occurs in human‐managed reservoirs, resulting in large areas of reservoir‐bed that are episodically inundated or subaerially exposed. Here we use hyperspectral data from NASA’s Earth Surface Mineral Dust Source Investigation (EMIT) mission to map calcite mineral assemblages across ...
Michael R. Fischella, Joel B. Sankey, Ray Kokaly, Amy East, Alan Kasprak, Joshua Caster, Bridget R. Deemer, Ryan Crow, Skyler Mavor, Derek V. Mallia   +9 more
wiley   +1 more source

Study on extinction of the remnant oceanic basin and tectonic setting of West Junggar during Late Paleozoic

, 2010
The study on Keramay ophiolite suite and overlying continental volcanic-sediment rocks indicates that Late Paleozoic remnant oceanic basin in west Junggar formed after Early Paleozoic ocean The deposition was nearly successive However, the isotope ...
Xu Xin, Wang Yu, Zhou KeFa, Xu, X, Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China   +3 more
core  

Magnitudes and Rates of Strength‐Drawdown Modulate Injection‐Induced Seismicity

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Accurately forecasting injection‐induced seismicity remains a major challenge that is critically important for energy production and storage as controlling mechanisms are complex and remain opaque. We clarify key processes by following time‐histories of bespoke parameters anticipated to control strength reduction (drawdown) through ...
Pengliang Yu, Matthew Roseboom, Ankur Mali, Jacques Rivière, Parisa Shokouhi, Chris Marone, Derek Elsworth   +6 more
wiley   +1 more source

Seasonal Shifts in Nitrogen Isotope Fractionation Regimes in the Leighton Cycle

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Nitrogen isotopes are used to trace nitrogen oxides (NOx = nitric oxide (NO) + nitrogen dioxide (NO2)) emissions and nitrate formation, but their interpretation depends on isotope redistribution during NO−NO2 cycling. A key uncertainty is whether this partitioning is controlled by equilibrium exchange or Leighton cycle.
Zeqian Liu, Yang Cui, Zhuang Jiang, Zhongyi Zhang, Tianyu Gao, Weikun Li, Xin Wang, Shihao Liu, Hongcheng Lu, Jingya Hua, Qiusheng He, Lei Geng   +11 more
wiley   +1 more source

Observing Methane Emissions From Oil and Gas Infrastructure in the Permian Basin Using TROPOMI

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The Permian Basin is one of the largest methane sources in the United States, yet quantifying emissions at scales needed to attribute them to specific infrastructure remains challenging. Here we present a methane flux inversion from 2018 through 2025 using TROPOMI retrievals and a machine learning surrogate for atmospheric transport (FootNet).
Nikhil Dadheech, Alexander J. Turner
wiley   +1 more source

Paleozoic origin of the cycads

, 1976
Megasporophylls and associated plant parts from Upper Pennsylvanian and Lower Permian rocks of southwestern United States are interpreted as lineage of cycads, derived from pteridosperms.
Mamay, Sergius H.
core  

Paleozoic and Mesozoic hydrocarbon foci of generation and assessment of their role in formation oil deposits of the Pre-Jurassic complex of Western Siberia

Georesursy
The following problem is solved by the present research: the probable sources of Paleozoic hydrocarbon deposits are determined on the basis of modeling the hydrocarbon foci of generation Paleozoic-Mesozoic oil source formations (for example, the ...
V. I. Isaev, M. F. Galieva, G. Lobova, S. G. Kuzmenkov, V. I. Starostenko, A. N. Fomin   +5 more
doaj   +1 more source

Onset of Thrusting at ca. 23 Ma in East Kunlun Mountains, Northern Tibet, Recorded by Syntectonic Strata

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The timing of Cenozoic deformation in the East Kunlun Mountains, northern Tibet, is crucial for understanding plateau growth but remains disputed due to the scarcity of direct chronological constraints on specific tectonic structures. Here, we present a high‐density‐sampling magnetostratigraphic record from the Xiaohongshan section, interior ...
Leyi Li, Hong Chang, Balázs Bradák, Xiaoke Qiang   +3 more
wiley   +1 more source

Thickness‐Dependent Thermodynamic Responses of Arctic Sea Ice to Extratropical Cyclones Based on MOSAiC Observations

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Extratropical cyclones strongly influence Arctic sea ice thermodynamics through episodic heat and moisture transport, yet their thickness‐dependent impacts remain poorly quantified. Using comprehensive observations from the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC), we investigate how sea ice thickness ...
Yu Liang, Xianyao Chen, Jinfeng Ding, Lei Liu   +3 more
wiley   +1 more source