Results 61 to 70 of about 18,619 (157)

Geochemical features of the Lower Silurian strata in Xiushan, Chongqing: Implications for paleoclimate reconstruction

Journal of Asian Earth Sciences: X
The Silurian was featured by frequent climatic and environmental changes. Impoverished marine faunas slowly recovered from the end-Ordovician mass extinction.
La Zhang, Yang Chen, Jinhua Luan, Ruigang Zhang, Zhiwei Cui, Haitong Zhao, Qian Wang   +6 more
doaj   +1 more source

Age and orbital forcing in the upper Silurian Cellon section (Carnic Alps, Austria) uncovered using the WaverideR R package

Frontiers in Earth Science
The type-Silurian Cellon section in the Carnic Alps in Austria underpins much of the current Silurian conodont zonations, forming the basis for the Silurian timescale.
Michiel Arts, Carlo Corradini, Monica Pondrelli, Monica Pondrelli, Damien Pas, Anne-Christine Da Silva   +5 more
doaj   +1 more source

Highly tectonized Silurian and Lower Devonian sediments at Funtanamare (SW Sardinia) [PDF]

, 2009
A very few trilobites have been found during the preparation of this stop.
CORRIGA M. G., CORRADINI C., CORRADINI, CARLO, PILLOLA G. L., FERRETTI, Annalisa, PILLOLA, GIAN LUIGI, FERRETTI A, CORRIGA, MARIA GIOVANNA   +7 more
core  

Detrital provenance evolution of the Ediacaran-Silurian Nanhua foreland basin, South China

, 2014
We report here in-situ U–Pb and Hf isotopic results of detrital zircons from sixteen Cambrian–Silurian siliciclastic samples across the Nanhua foreland basin, South China.
Li, Zheng-Xiang, Yang, J., Su, Li, Li, W., Yao, Weihua, Yao, Wei-Hua, Li, Wu-Xian, Yang, Jin-Hui, Su, L.   +8 more
core   +1 more source

Physics-informed neural networks incorporating slope stability mechanics for real-time landslide early warning in Three Gorges Reservoir Area

Journal of Engineering and Applied Science
Landslides pose significant threats to infrastructure and public safety in reservoir and mountainous regions, requiring accurate and physically reliable early-warning systems.
Jiangtao Xu, Chengyong Sun, Xiaoyu Xu
doaj   +1 more source

Novel evidence for the youngest Naraoia and a reassessment of naraoiid paleobiogeography [PDF]

Fossil Record
Naraoiids are nektaspidid arthropods that display two exoskeletal shields, typically lack thoracic tergites, and have an exceptional Cambrian diversity. Despite their predominantly Cambrian fossil record, Naraoia species have been documented in deposits ...
Russell D. C. Bicknell, Aaron Goodman, Lukáš Laibl, Lisa Amati   +3 more
doaj   +3 more sources

Different desorption types and geological influencing factors of Silurian shale gas in southeastern Sichuan Basin

Shiyou shiyan dizhi
The southeastern Sichuan Basin is a key area for the exploration and development of Silurian shale gas in China. In recent years, a number of shale gas wells have achieved good exploration results in this area, providing important support for the ...
Zexin SU, Zhujiang LIU, Fubin WEI
doaj   +1 more source

A sparsely encrusted hardground with abundant Trypanites borings from the Llandovery of the Velise River, western Estonia (Baltica) [PDF]

Estonian Journal of Earth Sciences, 2016
The Päärdu hardground from the Telychian (Rumba Formation) of western Estonia is sparsely encrusted (0.4% of the studied surface) by possible tabulate corals, sheet-like bryozoans and discoidal echinoderm holdfasts.
Olev Vinn, Ursula Toom
doaj   +1 more source

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

Reservoir characterization and exploration potential of shale reservoir near denudation area: A case study of Ordovician–Silurian marine shale, China

Open Geosciences
The distribution of denudation areas has brought huge risks to the exploration and development of deep buried shale gas resources. The reservoir characterization and exploration potential near denudation areas is of great significance to the evaluation ...
Li Yuegang, Chen Weiming, Pu Junwei
doaj   +1 more source