Results 11 to 20 of about 151,775 (355)
Uranium incorporation in fluorite and exploration of U–Pb dating [PDF]
Geochronology, 2021 The age of ore deposits constitutes a decisive element in understanding their formation. Deciphering their precise chronology may be a challenge in the absence of mineral phases that can be dated by conventional geochronometers.
L. Lenoir +8 more
doaj +4 more sources
Hematite U-Pb dating of Snowball Earth meltwater events. [PDF]
Proc Natl Acad Sci U S AThe Snowball Earth hypothesis predicts global ice cover; however, previous descriptions of Cryogenian (720-635 Ma) glacial deposits are limited to continental margins and shallow marine basins. The Tavakaiv (Tava) sandstone injectites and ridges in Colorado, USA, preserve a rare terrestrial record of Cryogenian low-latitude glaciation.
Courtney-Davies L +4 more
europepmc +3 more sources
U-Pb dating for zircons from granitic rocks in southwestern Cambodia. [PDF]
Heliyon, 2023 U-Pb dating was conducted for zircons from a total of 14 samples from 13 granite bodies in southwestern Cambodia using LA-ICP-MS. The granitic rock samples were collected from southwestern Cambodia, southwest of the Mae Ping Fault extending from northwest Cambodia via Tonle Sap Lake to southern Vietnam.
Uchida E +6 more
europepmc +4 more sources
NanoSIMS and EPMA dating of lunar zirconolite
Progress in Earth and Planetary Science, 2021 Zirconolite is a common Zr-rich accessary mineral in mafic rocks. It is also an ideal U–Pb/Pb–Pb chronometer because it commonly contains high U content (mostly 0.1–10 wt%) and negligible initial Pb.
Nian Wang +4 more
doaj +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
Tectonics, 2021 During its late‐stage evolution, the European Alpine orogen witnessed a northwest‐directed propagation of its deformation front along an evaporitic basal décollement into the foreland.
N. Looser +5 more
semanticscholar +1 more source
In situ U-Pb Isotope Dating Techniques for Sandstone-type Uranium Deposits
Yankuang ceshi, 2020 BACKGROUND Uranium mineral dating has been difficult to ascertain in mineralization chronology. With the development of in situ U-Pb isotope dating technology, it is possible to directly date ore minerals (uranium minerals).
XIAO Zhi-bin +6 more
doaj +1 more source
Геодинамика и тектонофизика, 2022 The Ilmeno-Vishnevogorsky miaskite-phenite-carbonatite complex (IVС), located in the Urals folded region, is a representative of "linear type" carbonatite complexes, with which Nb-Zr deposits are associated.
I. L. Nedosekova +3 more
doaj +1 more source
Technical note: LA–ICP-MS U–Pb dating of unetched and etched apatites [PDF]
Geochronology, 2021 The same unetched and chemically etched apatite crystals from five rock samples were dated by the U–Pb method via laser ablation inductively coupled plasma mass spectrometry (LA–ICP-MS).
F. Abdullin +3 more
doaj +1 more source
Yankuang ceshi, 2022 BACKGROUND The Changjiang uranium ore field in the southern margin of the Zhuguangshan complex pluton is a typical granite-type uranium ore field in China. Zircon U-Pb dating has been used to date ore-bearing granites. However, due to the high content of
CHEN Yan +6 more
doaj +1 more source