Results 91 to 100 of about 1,722,612 (173)

Machine Learning Approaches for Predicting Total Organic Carbon From Petrophysical Well Logs in the Wufeng–Longmaxi Shale, Southeast Sichuan Basin, China

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This study demonstrates the application of machine learning models—Random Forest, XGBoost, and Multiple Linear Regression—to predict Total Organic Carbon (TOC) from well logs, significantly improving TOC prediction accuracy and reliability across diverse geological settings compared to traditional log‐based methods.
Haseeb Ahmad, Jiang Shu, Naveed Rehman, Muhammad Asad, Muhammad Tariq, Aqib Saeed, Attiqullah Ayaz   +6 more
wiley   +1 more source

The Magnetic Signature of Shear Zones in Marbles and Experimental Simulations

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This dataset explores how strain, microstructure, texture and magnetic susceptibility interact in natural and experimental shear zones. It includes data from low‐ and high‐temperature marble shear zones and analogue experiments simulating different deformation regimes.
Vladimír Kusbach, Zuzana Roxerová, Matěj Machek, Monika Kučeráková, Stanislav Vratislav, Anna Vávrová, Martin Chadima, Pedro F. Silva, Martin Racek   +8 more
wiley   +1 more source

Depositional and Hydrological Relationships Between Buried Dead Ice and the Active Layer in the McMurdo Dry Valleys, Antarctica: A Study of Sediment Geochemistry and Cation Concentrations

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 725-752, October/December 2026.
ABSTRACT The McMurdo Dry Valleys, the largest ice‐free region in Antarctica, are home to a cold‐desert hydrologic system of glaciers, snowbanks, streams, and lakes. Freshwater is also stored as dead glacial ice, which is poorly constrained in terms of ion concentrations and interactions with both in situ and overlying sediments.
Matthew C. Witscheber, Kate M. Swanger
wiley   +1 more source

Analysis of Dual‐Porosity Model With Fissure Skin Effect in Confined Karst Aquifer

Water Resources Research, Volume 62, Issue 10, October 2026.
Abstract In fractured media with rough fissure skins, ignoring the fissure skin effect limits the accuracy of parameter inversion. In karst aquifers, groundwater storage and movement are typically governed by dual‐porosity models, where the fissure skin plays a key role in water exchange between fissures and the rock matrix.
Li Ding, Suping Peng, Wenfeng Du, Yang Xiang, Jingming Wang   +4 more
wiley   +1 more source

The Size of Greater India: Estimates by Comparing the Apparent Polar Wander Paths of the Tethyan Himalaya and the Indian Craton

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The northern extent of Greater India is a critical, yet highly debated, parameter for reconstructing the India‐Asia collision. Previous paleomagnetic estimates, including the fill‐the‐gap and fixed great circle approaches, yield widely varying results, spanning from ∼200 to ∼3,000 km. These large discrepancies stem principally from two primary
Xianwei Jiao, Suo Wang, Yong Zhao, Tongming Fang   +3 more
wiley   +1 more source

Colonization of empty shells by cryptic fauna: a global event and important ecological innovation in Ordovician benthic ecosystems

Scientific Reports
In all modern seas, empty mollusc shell interiors are often heavily encrusted by cryptic invertebrates, whereas globally in the Cambrian, all shell interiors of molluscs and other invertebrates remained free of encrustation, though cryptic organisms ...
Olev Vinn, Mark A. Wilson, Oive Tinn, Liisa Lang, Mare Isakar, Ursula Toom   +5 more
doaj   +1 more source

Subduction Recycling and Closure of the Paleo‐Asian Ocean in the Beishan Orogen: Constraints From the Niujuanzi Ophiolitic Mélange and Associated Intrusions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Ophiolitic mélanges and associated intrusions provide key archives for reconstructing the evolution of ancient ocean basins and subduction‐related mantle modification. The Hongliuhe–Niujuanzi–Xichangjing ophiolitic mélange in the central Beishan Orogen preserves important records of the Paleo‐Asian Ocean, but the timing of oceanic subduction ...
Yujia Song, Xijun Liu, Yao Xiao, Honghu Zeng, Pengde Liu   +4 more
wiley   +1 more source

Geochronology and Hf isotopic characteristics of detrital zircon from the miboshan formation in the eastern hexi corridor: implications for the relationship between the alxa block and the North China craton

Frontiers in Earth Science
This study presents U-Pb ages together with newly obtained systematic Hf isotopic data from detrital zircons of the Middle Ordovician Miboshan Formation in the eastern Hexi Corridor (northwestern China), aiming to constrain its provenance characteristics
Hongze Yang, Hongze Yang, Hongze Yang, Wenzhong Wu, Wenzhong Wu, Yu Ma, Yu Ma   +6 more
doaj   +1 more source

An Ediacaran Metasedimentary Fragment With Northern Gondwana Affinity in the Southern East Kunlun Accretionary Belt, Northern Tibetan Plateau: Implications for the Dispersal of Peri‐Gondwanan Terranes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Precambrian supercontinent reconstructions largely rely on robust geological constraints. Among these, the basin affinities recorded by Precambrian sedimentary fragments preserved in orogenic belts provide critical evidence for resolving the paleogeographic configurations of microcontinents and continental blocks.
Yongcheng Li, Bo Hui, Yunpeng Dong, Dengfeng He, Shengsi Sun, Zhidong Gu, Cuicui Wang, Talifeng Biedilihan, M. P. Manu Prasanth, Xin Zhu, Shuxuan Yan, Rutao Zang, Lutong Zhao, Zihao Liu, Mohamed Attia   +14 more
wiley   +1 more source

The Wilson Cycle of the North Altyn Ocean: A Record of Subduction Initiation, Slab Rollback, and Final Closure

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The North Altyn ophiolitic belt was formed by the subduction–closure of the Altyn segment of the Proto–Tethys Ocean and recorded the accretion of Tarim to northern Gondwana, but the timing of initial subduction and detailed tectonic transition processes remain poorly constrained. This study reports the oldest Phanerozoic magmatic record of 537 
Long Chen, Jinlong Yao, Guochun Zhao, Yigui Han, Qian Liu, Donghai Zhang, Xijun Zhao, Hang Yang, Wei Li   +8 more
wiley   +1 more source