Results 21 to 30 of about 85,116 (273)
Detrital apatite Lu–Hf and U–Pb geochronology applied to the southwestern Siberian margin
Terra Nova, 2022 Apatite is increasingly used in sedimentary provenance studies. However, detrital apatite U–Pb geochronology can be challenging due to the presence of non‐radiogenic Pb, its intermediate closure temperature (~350–550°C) and/or age‐resetting by ...
S. Glorie +7 more
semanticscholar +1 more source
Tectonic history of the South Tannuol Fault Zone (Tuva region of the northern Central Asian Orogenic Belt, Russia) : constraints from multi-method geochronology [PDF]
, 2020 In this study, we present zircon U/Pb, plagioclase and K-feldspar Ar-40/Ar-39 and apatite fission track (AFT) data along the South Tannuol Fault Zone (STFZ).
De Grave, Johan +6 more
core +1 more source
Dating rare earth element enrichment in deep-sea sediments using U-Pb geochronology of bioapatite
Geology, 2023 Deep-sea sediments rich in rare earth elements and yttrium (REY) are promising mineral resources that are believed to be associated with the burial of fish debris.
Dengfeng Li +7 more
semanticscholar +1 more source
U-Pb geochronology documents out-of-sequence emplacement of ultramafic layers in the Bushveld Igneous Complex of South Africa. [PDF]
Nat Commun, 2016 Layered intrusions represent part of the plumbing systems that deliver vast quantities of magma through the Earth’s crust during the formation of large igneous provinces, which disrupt global ecosystems and host most of the Earth’s endowment of Pt, Ni ...
Mungall JE, Kamo SL, McQuade S.
europepmc +2 more sources
Geochemistry, Geophysics, Geosystems, 2021 Detrital geochronology provides insight into a broad range of Earth Science questions. However, detrital zircon U‐Pb age distributions are inherently univariate, and thus quantitative comparison methods are limited to one‐dimension (1D) and subject to ...
K. E. Sundell, J. E. Saylor
doaj +1 more source
Depositional age models in lacustrine systems from zircon and carbonate U‐Pb geochronology
Sedimentology, 2022 The Yacoraite Formation (Salta rift, Argentina) consists of Maastrichtian–Danian lacustrine carbonate and siliciclastic deposits with interbedded volcanic ash layers, organized in four third‐order stratigraphic sequences.
Damaris Montano +4 more
semanticscholar +1 more source
Dizhi lixue xuebao, 2023 The Dongshang Uranium Deposit is situated in the southern section of the Ganfang Pluton in the Jiuling Orogenic Belt of northwestern Jiangxi Province. The U-bearing granites consist mainly of medium- to coarse-grained, porphyritic biotite(binary) granite.
DANG Feipeng +7 more
doaj +1 more source
Direct dating of mid-crustal shear zones with synkinematic allanite:new in situ U-Th-Pb geochronological approaches applied to the Mont Blanc massif [PDF]
, 2013 International audienceDating the timing of motion on crustal shear zones is of tremendous importance for understanding the assembly of orogenic terranes.
Cenki-tok, Benedicte +4 more
core +3 more sources
Geochronology, 2021 . Laser ablation U–Pb analyses of carbonate (LAcarb) samples has greatly expanded the potential for U–Pb dating to a variety of carbonate-producing settings. Carbonates that were previously considered impossible to date using isotope dilution methods may
E. Rasbury +7 more
semanticscholar +1 more source
Scientific Reports, 2022 The Pliensbachian–Toarcian boundary interval is characterized by a ~ 3‰ negative carbon-isotope excursion (CIE) in organic and inorganic marine and terrestrial archives from sections in Europe, such as Peniche (Portugal) and Hawsker Bottoms, Yorkshire ...
Aisha H. Al-Suwaidi +10 more
doaj +1 more source