Results 101 to 110 of about 157,575 (214)

Idades preliminares U-Pb, ID-TIMS, das Ilhas Berlengas, Portugal = Preliminary ID-TIMS, U-Pb ages of the Berlengas Islands, Portugal [PDF]

open access: yes, 2010
Apresentam-se os resultados provisórios das idades U-Pb de duas amostras das ilhas do grupo das Berlengas. No Farilhão Grande uma amostra de granito de duas micas com silimanite foi recolhida de um complexo metamórfico.
Bento dos Santos, Telmo   +3 more
core  

Detrital zircon U–Pb ages and Hf isotope analyses of modern and Quaternary sediments in China: A new dataset with preliminary analysis

open access: yesGeoscience Data Journal
Developments of detrital zircon geochronology have resulted in an explosion of publications that report or discuss detrital zircon data. Combined detrital zircon U–Pb ages with Hf isotope analyses from modern and Quaternary sediments have been widely ...
Xiyun Chen   +5 more
doaj   +1 more source

SHRIMP U-Pb Ages of the Namwon and Sunchang Granites [PDF]

open access: yesThe Journal of the Petrological Society of Korea, 2013
Hui Je Jo, Kye-Hun Park, Keewook Yi
openaire   +1 more source

U-Pb age of calcite reference material

open access: yesU-Pb age of calcite reference material
P(論文)
openaire  

U-Pb zircon age for the Nanhua-Sinian boundary

open access: yesChinese Science Bulletin, 2005
Chu, X.   +4 more
openaire   +3 more sources

Detrital zircon–apatite fingerprinting challenges glacial transport of Stonehenge’s megaliths

open access: yesCommunications Earth & Environment
How Stonehenge’s building blocks arrived on Salisbury Plain remains debated, with glacial and human transport mechanisms proposed. Here we test the possibility of Pleistocene glacial sediment input using grain-scale U–Pb fingerprinting of detrital zircon
Anthony J. I. Clarke   +1 more
doaj   +1 more source

Early Archean tonalite gneiss in the upper peninsula of Michigan [PDF]

open access: yes
Geochronological results on tonalite gneiss of northern Michigan that is 3.56 Ga or slightly older is presented. Tonalitic augen gneiss and structurally overlying biotite gneiss and schist are exposed in a dome near Watersmeet.
Peterman, Z. E.   +2 more
core   +1 more source

Electron microprobe dating of lunar zirconolite

open access: yesJournal of Analytical Science and Technology
Zirconolite is an accessary mineral occurred in the lunar basaltic and granitic rocks and contains relatively high contents of U, Th, and Pb, which is attractive for age dating.
Changkun Park, Hwayoung Kim
doaj   +1 more source

Assessing Pb Isotopic Equilibrium Between Apatite and K‐Feldspar

open access: yesGeochemistry, Geophysics, Geosystems
Quantifying common Pb, the non‐radiogenic Pb present in a mineral independent of in situ U decay, is essential for obtaining accurate U–Pb ages in common Pb‐bearing minerals such as apatite.
Priyanjan Datta   +3 more
doaj   +1 more source

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