Results 11 to 20 of about 56 (56)

Shifting the Paradigm: Redefining the Chronostratigraphy of the Triassic Rewan Group, Bowen Basin, Australia

open access: yesBasin Research, Volume 38, Issue 3, May–June 2026.
New U–Pb zircon dating shows the Rewan Group was deposited between ~250 and 233 million years ago and that sedimentation shifted across the basin through time, with earlier deposition in the foredeep and later deposition in the back bulge. Testing multiple dating approaches and grain‐selection strategies improves confidence in these age estimates and ...
Matthew Scipione   +6 more
wiley   +1 more source

Timing of Metamorphism and Deformation in the Neoarchean Quetico Metasedimentary Belt, Superior Craton, Constrained by Garnet Trace‐Element Mapping and Lu–Hf Geochronology

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 4, Page 265-286, May 2026.
ABSTRACT The Quetico subprovince of the Superior Province is among the largest metasedimentary belts globally and provides evidence of tectonic processes at play during the final stages of Archean cratonization. Although previous studies have shown that deformation and metamorphism of the 2.7‐Ga turbiditic protolith resulted in regional subvertical ...
Adrian G. Rehm   +4 more
wiley   +1 more source

Kinematics of Burial Remagnetizations in Fold‐and‐Thrust Belts: A Case Study From the South Pyrenean Foreland Basin (NE Spain)

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract This study investigates two burial‐related remagnetizations in the Jaca–Pamplona foreland basin (Southern Pyrenees): one with dual polarity and a positive reversals test, and another with only reverse polarity. These components, labeled C3 and C4 based on their mean unblocking temperatures, were identified from a paleomagnetic analysis of 142 ...
P. Calvín   +8 more
wiley   +1 more source

Spatial and Temporal Evolution of Graben Formation During Rift Linkage Using Quantitative Geomorphology: Insights From Central Afar

open access: yesTectonics, Volume 45, Issue 4, April 2026.
Abstract Quantifying fault slip rates and resolving rift segment linkage mechanisms is important for understanding the evolution of magma‐rich rift systems and the broader processes of continental break‐up. In tectonically and volcanically active rifts, such as Afar, there is commonly a lack of quantitative, observational constraints on long‐term fault
Reha Chandresh   +8 more
wiley   +1 more source

3‐D Modeling of Differential Exhumation of Ultrahigh‐Pressure Metamorphic Rocks Driven by Increasing Plate Divergence

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Petrological and seismic constraints suggest differential sampling depth for ultrahigh pressure (UHP) metamorphic rocks exposed in different segments of the fossil subduction zone of the Western Alps. However, the mechanisms for the observed differential exhumation remain to be understood. Here, we account for the continental margin subduction
Xinxin Wang   +4 more
wiley   +1 more source

On Unease and Discomfort About the Anthropocene

open access: yesEarth's Future, Volume 14, Issue 2, February 2026.
Abstract The proposal for a formal inclusion of the Anthropocene as a new unit of the Geologic Time Scale (GTS) was rejected in part on the grounds that it would sit uncomfortably in the GTS. The durations of all GTS units tend to become shorter toward the present. The proposed Anthropocene epoch and Crawfordian age fit that trend comfortably.
Ulrich Stange
wiley   +1 more source

Sea Surface Temperature and Salinity Changes in the Easternmost Mediterranean During the Pre‐Evaporitic Messinian Controlled by the Restriction at Gibraltar

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 1, January 2026.
Abstract During the latest Miocene, the Mediterranean Basin was affected by extreme paleoceanographic and paleoenvironmental changes culminating with evaporite (gypsum and halite) formation during the Messinian Salinity Crisis (MSC: 5.97–5.33 Ma).
F. Lanterna   +4 more
wiley   +1 more source

Metallogeny, Ore‐Controlling Factors, and Deep Prospecting Indicators of Fluorite Deposits in Zhejiang Province, SE China: A Review

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
Zhejiang Province ranks among China′s premier fluorite‐producing regions, with numerous deposits supplying strategic mineral resources. This paper synthesizes published literature on fluorite deposits in Zhejiang Province. We propose a classification framework dividing the deposits into four major metallogenic districts: Wuyi, Xianju, Lin′an, and ...
Zhengpeng Ding   +4 more
wiley   +1 more source

Two Cycles of Devonian–Triassic Extension and Compression in the Altai Accretionary Wedge: Insights From Tsogt Core Complex

open access: yesTectonics, Volume 44, Issue 12, December 2025.
Abstract The Altai Accretionary Wedge in the Mongolian Altai records a polyphase geodynamic evolution involving two extensional–compressional tectonic cycles, constrained by petrostructural analysis and zircon, monazite U–Pb, and Ar–Ar geochronology. The studied section includes a southwestern high‐grade and a northeastern low‐grade domain, previously ...
O. Lexa   +7 more
wiley   +1 more source

Remagnetization of Lower Cretaceous Limestones in the Western Tethyan Himalaya and Its Tectonic Implications for the India‐Asia Collision

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract The drift history of the Tethyan Himalaya provides key constraints on the India‐Asia collision, Himalayan‐Tibetan orogenesis, and associated global climate change. Here we present rock magnetic, petrographic, geochronologic, and paleomagnetic results of the Bolinxiala Formation limestones in the western Tethyan Himalaya.
Siqi Wang   +12 more
wiley   +1 more source

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