Results 121 to 130 of about 29,350 (195)

Permian fluid circulation and deformation along a crustal-scale shear zone in the Montagne Noire gneiss dome (southern French Massif Central)

open access: yesBSGF - Earth Sciences Bulletin
U-Th-Pb LA-ICPMS (Laser Ablation − Inductively Coupled Plasma Mass Spectrometry) has the power to elucidate the timing of metamorphism, deformation, migmatization, and plutonism.
Roger Françoise   +9 more
doaj   +1 more source

A database of detrital zircon U–Pb geochronology and Hf isotopes from the Songpan–Ganzi and Western Qinling terranes

open access: yesGeoscience Data Journal
Since the advent of detrital geochronology, significant progress has been made in the study of sedimentary sources. The detrital zircon U–Pb age spectrum, especially when combined with zircon Hf isotopes, provides a powerful tool for determining the ...
Yingdi Pan, Xiumian Hu
doaj   +1 more source

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

open access: yesNew 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   +7 more
wiley   +1 more source

Geochemistry, Sm-Nd isotopes and SHRIMP U-Pb geochronology of the Morro do Coco Granite (RJ, Brazil): another piece of the post-collisional magmatism of the Ribeira Belt

open access: yesBrazilian Journal of Geology
The Morro do Coco granite (MC) is a post-collisional intrusive body that was emplaced at Ribeira Belt, in the Cambro-Ordovician, succeeding the final stages of the Gondwana supercontinent amalgamation.
Fellippe Roberto Alves Bione   +3 more
doaj   +1 more source

Multiscale Analysis of Bouguer Gravity Anomalies: Unveiling the Deep Structure of Eastern Himalayan Syntaxis Faults

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The Eastern Himalayan Syntaxis (EHS), which is located at the southeastern edge of the Qinghai–Xizang Plateau, is a key region for understanding mountain‐building and subduction processes. Bouguer gravity anomalies derived from the Earth Gravitational Model 2008 free‐air anomaly data following topographic corrections, were analyzed.
Rui Zhang   +5 more
wiley   +1 more source

New Cretaceous Paleomagnetic and Geochronologic Data From the Antarctic Peninsula: Constraints on the Pre‐Opening Tectonic Evolution of the Drake Passage

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Reconstructing oroclinal orogens along the Fuegian Andes‐northern Antarctic Peninsula provides critical constraints on the pre‐opening tectonic evolution of the Drake Passage, although such efforts are limited by a lack of reliable Cretaceous paleomagnetic and geochronological data.
Liang Gao   +6 more
wiley   +1 more source

Late Triassic Hydroclimatic Changes in Central China Linked to Evolving Mountain Topography

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract During the Late Triassic, tropical Pangea drifted northward into subtropical latitudes and became progressively drier. In contrast, South China, despite experiencing a similar latitudinal shift, transitioned from an arid to humid climate. Based on the sedimentary record of the Zigui Basin, this study constrains the arid to humid climatic shift
Rong Chai   +7 more
wiley   +1 more source

A Novel Soil Chronometer: Uranium Comminution Ages Measure Soil Production Rates in a Deep Granitic Weathering Profile

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Soil production, through bedrock weathering, regulates landscape evolution, biogeochemical cycles, and societal sustainability, yet quantifying soil production rates (SPRs) remains difficult due to limited tools. Here, we present a new framework for measuring SPRs based on uranium comminution ages and validate this approach at a deep granitic ...
Shenghui Ouyang   +3 more
wiley   +1 more source

The boundary between the Central Asian Orogenic belt and Tethyan tectonic domain deduced from Pb isotopic data [PDF]

open access: yes, 2015
Castillo, Paterno R   +7 more
core   +1 more source

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