Results 11 to 20 of about 3,361 (218)

Impact and Correction of Analytical Positioning on Accuracy of Zircon U-Pb Dating by SIMS [PDF]

open access: yesFrontiers in Chemistry, 2020
Secondary ion mass spectrometry (SIMS) is one of the most important analytical tools for geochronology, especially for zircon U-Pb dating. Due to its advantages in spatial resolution and analytical precision, SIMS is the preferred option for multi-spot ...
Yu Liu   +13 more
doaj   +2 more sources

Direct Calibration Method for LA-HR-ICP-MS Apatite U-Pb Dating

open access: yesYankuang ceshi, 2022
BACKGROUND Apatite is a common U-bearing accessory mineral with a U-Pb closure temperature of ~500℃, making U-Pb dating of apatite a potentially valuable thermochronometer.
ZHAO Linghao   +5 more
doaj   +1 more source

Effect of Gas Flow Rates in Laser Ablation System on Accuracy and Precision of Zircon U-Pb Dating Analysis by LA-ICP-MS

open access: yesYankuang ceshi, 2022
BACKGROUND Despite zircon U-Pb dating analysis by LA-ICP-MS receiving wide acceptance, it remains a challenge to obtain results with high accuracy and precision.
TAN Xijuan   +4 more
doaj   +1 more source

Mineralization age and genesis of the makeng-style iron deposits in the Paleo-Pacific tectonic domain of South China: In situ LA-ICPMS garnet U-Pb chronological and geochemical constraints

open access: yesFrontiers in Earth Science, 2023
To reveal the genesis of Makeng-style iron polymetallic deposits from SE China in the paleo-Pacific tectonic domain, a new analytical method of LA-ICPMS garnet U-Pb dating and rare Earth element analysis was conducted for the Makeng, Luoyang, Dapai and ...
Sen Wang   +13 more
doaj   +1 more source

Towards in situ U–Pb dating of dolomite [PDF]

open access: yesGeochronology, 2021
Recent U–Pb dating by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has demonstrated that reasonable precision (3 %–10 %, 2σ) can be achieved for high-resolution dating of texturally distinct calcite phases.
B. Elisha   +5 more
doaj   +1 more source

Exploring the CAM18 Crystal as a Potential Reference Material for U–Pb Analysis of Zircon

open access: yesCrystals, 2023
In the process of in situ zircon U–Pb dating, it is an effective means to overcome the matrix effect by using a matrix-matched external reference material.
Wurui Li   +4 more
doaj   +1 more source

NanoSIMS and EPMA dating of lunar zirconolite

open access: yesProgress 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

In situ U-Pb Isotope Dating Techniques for Sandstone-type Uranium Deposits

open access: yesYankuang 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

AGE AND GEODYNAMIC SETTINGS OF MIASKITE-PEGMATITES, CARBONATITES, AND Nb-Zr MINERALIZATION OF THE ILMENO-VISHNEVOGORSKY ALKALINE COMPLEX, SOUTH URAL (U-Pb AND Rb-Sr ISOTOPE DATA)

open access: yesГеодинамика 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]

open access: yesGeochronology, 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

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