Results 51 to 60 of about 8,669 (230)
Reproducibility of Thermal History Reconstruction From Apatite Fission‐Track and (U‐Th)/He Data
Geochemistry, Geophysics, Geosystems, 2018 We report a new interlaboratory exercise to evaluate the reproducibility of apatite fission‐track (AFT) and (U‐Th)/He (AHe) data and thermal history analysis.
Richard A. Ketcham +4 more
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Apatite U-Pb dating at UNAM laboratories: analytical protocols and examples of its application
Revista Mexicana de Ciencias Geológicas, 2019 Apatite is the most common phosphate mineral in the Earth’s crust and can be found in practically all magmatic and metamorphic rocks, as well as in ancient and recent sediments and in certain ore deposits. Its effective closure temperature of 450–550 °C
Carlos Ortega-Obregón +4 more
doaj +1 more source
Meso-Cenozoic tectonics of the Central Kyrgyz Tien Shan (Central Asia), based on apatite fission track thermochronology. [PDF]
, 2008 Apatite fission track thermochronology on the Kyrgyz Tien Shan basement revealed a polyphased thermal history of the study-area.
Glorie, Stijn
core
Journal of Metamorphic Geology, EarlyView.ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi +4 more
wiley +1 more source
Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Meteoritics &Planetary Science, EarlyView.Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2022 Four zircon Raman bands were previously calibrated to give consistent estimates of the accumulated self‐irradiation α‐dose in unannealed volcanic samples.
Birk Härtel +2 more
doaj +1 more source
Further evidence for early lunar magnetism from troctolite 76535 [PDF]
, 2017 The earliest history of the lunar dynamo is largely unknown and has important implications for the thermal state of the Moon and the physics of dynamo generation.
Garrick-Bethell, Ian +4 more
core +1 more source
The Late Great Unconformity of the Central Canadian Shield
Geochemistry, Geophysics, Geosystems, 2021 The Great Unconformity is a widely distributed surface separating Precambrian rocks from overlying Phanerozoic sedimentary sequences. The causes and implications of this feature, and whether it represents a singular global event, are much debated.
C. P. Sturrock +2 more
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Topographic highlands commonly develop along convergent plate boundaries through long‐term processes such as subduction and continental collision. However, the pre‐Cenozoic mountain‐building history of deep‐time orogenic systems in northeastern Pangaea remains poorly constrained due to later tectonic overprinting and denudation.
Heng Peng +9 more
wiley +1 more source
Yankuang ceshi, 2013 The 39Ar-40Ar dating technique yields high-precision results, and all age data depend on accurate ages of National Standard Reference Materials that are irradiated together with the unknown age samples.
LI Jie +5 more
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