Results 81 to 90 of about 3,916,400 (215)

WARM TO COLD WATER CARBONATE FORMATION DURING THE ORDOVICIAN AND THE JURASSIC: EXAMPLES FROM IRAN, AUSTRALIA, AND ENGLAND [PDF]

Journal of Sciences, Islamic Republic of Iran, 2003
Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic.
doaj  

Characteristics, distribution, and origin of ferruginous deposits within the Late Ordovician glaciogenic setting of Arabia. [PDF]

Sci Rep, 2023
Alqubalee A, Salisu AM, Bello AM, Al-Hussaini A, Al-Ramadan K.   +4 more
europepmc   +1 more source

Evolution of the Transantarctic Basin (Southern Gondwana): Insights From Quantitative Sandstone Petrography

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The deposition of the sandstone sedimentary succession of the Beacon Supergroup lasted more than 200 Myr (Devonian to Early Jurassic) in Victoria Land and nearby territories in the so‐called Transantarctic Basin, recording crucial events in the history of the Earth.
Luca Zurli, Marco Fioraso, Matteo Perotti, Andrea Di Giulio, Valerio Olivetti, Samuele Pezzoli, Valentina Corti, Gianluca Cornamusini   +7 more
wiley   +1 more source

Hydrocarbon fluid evolution and accumulation process in ultradeep reservoirs of the northern Fuman Oilfield, Tarim Basin

Frontiers in Earth Science
Marine deep Ordovician reservoirs are significantly controlled by strike-slip fault zones, which govern reservoir fluid evolution during various activity periods.
Rujun Wang, Yingtao Zhang, Fangfang Chen, Mengqin Li, Zhigang Wen, Zhigang Wen, Xiao Luo, Zhiwen Ding, Bing Li, Yifan Xue, Yifan Xue   +10 more
doaj   +1 more source

Eocene Tectonic Change in the South Pacific Caused Exhumation of the Transantarctic Mountains in Northern Victoria Land, Antarctica

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Apatite fission‐track and (U‐Th)/He data indicate rapid exhumation of northern Victoria Land at 40–30 Ma, correlating with opening of Adare Trough at 43–28 Ma. Exhumation was greatest close to the Ross Sea, consistent with other regions of the Transantarctic Mountains.
Rupert Sutherland, Paul Fitzgerald, Nick Mortimer   +2 more
wiley   +1 more source

Geochemical Changes in the Late Ordovician to Early Silurian Interval in the Northern Margin of the Upper Yangtze Platform, Southern China: Implications for Hydrothermal Influences and Paleocean Redox Circumstances. [PDF]

ACS Omega, 2023
Fu X, Liu X, Xiong S, Li X, Wu Q, Xiao B.   +5 more
europepmc   +1 more source

Inferring Cenozoic Cover Thickness and Bedrock Sedimentary Material in 3D From Geophysical Data Using Machine Learning Algorithms: A Case Study in the Lockington Region, Victoria, Australia

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This study presents a supervised machine learning approach to constructing a 3D geological model for the Lockington area in Victoria, Australia, by integrating borehole observations, geophysical surveys (magnetic, gravity, and radiometric), and elevation data.
Limin Xu, Eleanor C. R. Green, Mark A. McLean   +2 more
wiley   +1 more source

Reconstructing a Super-Eruption From the Upper Ordovician Period in the Eastern Pyrenees, Spain [PDF]

Lithosphere
The Pyrenean basement rocks, NE of the Iberian Peninsula, southwestern Europe, include evidence of several pre-Variscan magmatic episodes which indicate the complex geodynamic history of this segment of the northern Gondwana margin from late ...
Joan Marti, Josep M. Casas, Josep A. Muñoz   +2 more
doaj   +1 more source

Different controls on the Hg spikes linked the two pulses of the Late Ordovician mass extinction in South China. [PDF]

Sci Rep, 2022
Qiu Z, Wei H, Tian L, Corso JD, Zhang J, Zou C.   +5 more
europepmc   +1 more source

The Paleo‐Tethys Suture Zone in the Afghan Hindu Kush‒Pamir: Geo‐Thermochronology, Geochemistry, Tectonics

Tectonics, Volume 45, Issue 3, March 2026.
Abstract In the Afghan Hindu Kush, the 223–209 Ma (≤800°C) Salang batholith is part of the Silk‐Road magmatic arc that was built on ∼40‐km‐thick Turan‐Karakum block continental crust. The batholith constitutes the hanging wall of the Herat‐Panjshir‐Badakhshan—the Paleo‐Tethys—suture zone, vestige of the subducted Paleozoic‐early Mesozoic Paleo‐Tethys ...
Lothar Ratschbacher, Said Amin Hashimy, Hasan Malistani, Yasuhito Osanai, Jianhua Li, Zhao Yang, Bradley R. Hacker, Leander Franz, Hadi Karimi   +8 more
wiley   +1 more source