Results 11 to 20 of about 85,116 (273)

The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 229-246., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson   +2 more
wiley  

+14 more sources

A calcite reference material for LA‐ICP‐MS U‐Pb geochronology [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2017
AbstractU‐Pb dating of calcite is an emerging but rapidly growing field of application in geochronology with great potential to inform problems in landscape, basin, and mountain belt evolution, through age determination of diagenetic cements, vein mineralization, and geological formations difficult to date otherwise.
Nick M. W. Roberts   +5 more
openaire   +4 more sources

Calibrating the zenith of dinosaur diversity in the Campanian of the Western Interior Basin by CA-ID-TIMS U-Pb geochronology. [PDF]

open access: yesSci Rep, 2022
The spectacular fossil fauna and flora preserved in the Upper Cretaceous terrestrial strata of North America’s Western Interior Basin record an exceptional peak in the diversification of fossil vertebrates in the Campanian, which has been termed the ...
Ramezani J   +4 more
europepmc   +2 more sources

Zircon U–Pb geochronology of paragneisses and biotite [PDF]

open access: yes, 2008
Sensitive high-resolution ion microprobe U–Th–Pb age determinations on detrital and inherited zircon from the E ´ vora Massif (SW Iberian Massif, Portugal) provide direct evidence for the provenance of the Ossa–Morena Ediacaran basins (Se´rie Negra) and ...
Chichorro, Martim   +3 more
core   +3 more sources

Long-term repeatability and interlaboratory reproducibility of high-precision ID-TIMS U-Pb geochronology.

open access: yesJ Anal At Spectrom, 2021
Age determination of minerals using the U–Pb technique is widely used to quantify time in Earth's history. A number of geochronology laboratories produce the highest precision U–Pb dates employing the EARTHTIME 202Pb–205Pb–233U–235U tracer solution for ...
Schaltegger U   +10 more
europepmc   +2 more sources

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

U-Pb geochronology at 100ppm age uncertainty [PDF]

open access: yesGoldschmidt2021 abstracts, 2021
n ...
Schaltegger, Urs   +7 more
openaire   +2 more sources

A global zircon U–Th–Pb geochronological database [PDF]

open access: yesEarth System Science Data, 2023
Since the start of the 21st century, the widespread application of ion probes has promoted the mass output of high-precision and high-accuracy U–Th–Pb geochronological data.
Y. Wu, X. Fang, J. Ji
doaj   +1 more source

A Review of Research Progress on the Analytical Method of Large-n Detrital Zircon U-Pb Geochronology

open access: yesYankuang ceshi, 2022
BACKGROUND Detrital zircon U-Pb geochronology is an important tool for identifying sedimentary provenance and determining the maximum depositional age. The numbers of grains for detrital zircon provenance investigations using laser-ablation inductively ...
CHEN Xiyun   +4 more
doaj   +1 more source

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