Results 41 to 50 of about 6,999 (163)

U-Pb (LA-ICPMS) zircon ages and Nd isotopes for granitoids of the Tamboril-Santa Quitéria Complex, Ceará Central Domain: implication for neoproterozoic syncollisional magmatism in north Borborema Province [PDF]

Geologia USP. Série Científica, 2013
The Tamboril-Santa Quitéria Complex (TSQC) is one of the largest Neoproterozoic plutonic manifestations in the northBorborema Province (NE Brazil). It represents an anatectic/igneous association characterized by a number of magmaticpulses that occurred ...
Felipe Grandjean da Costa, Carlos Eduardo Ganade de Araújo, Wagner da Silva Amaral, Antonio Maurilio Vasconcelos, Joseneusa Brilhante Rodrigues   +4 more
doaj   +1 more source

Late paleozoic to early mesozoic provenance record of paleo-pacific subduction beneath South China

, 2015
Northeast trending Yong'an Basin, southeast South China Craton, preserves a Permian-Jurassic, marine to continental, siliciclastic-dominated, retroarc foreland basin succession.
Hu, L., Yang, J., Du, Y., Cawood, P.A., Jiao, L.   +4 more
core   +1 more source

Provenance and tectonic setting of Paleogene sandstone in the center of the northern Qaidam Basin, China

Journal of Natural Gas Geoscience, 2020
The average thickness of Paleogene sandstones reaches about 3000 m or even 4000 m at the northern margin of the Qaidam Basin. However, the provenance of these sandstones has been uncertain; thus, more comprehensive research is needed. Integrated research
Guoqiang Sun, Yetong Wang, Yun Jiang, Shile Pan, Shuncun Zhang, Mingfeng Zhang   +5 more
doaj   +1 more source

U–Pb zircon ages of the host rocks of the Juomasuo Au–Co–Cu deposit, northeastern Finland [PDF]

Bulletin of the Geological Society of Finland, 2017
The Salittu Formation is one of the few metavolcanic successions in the U-Pb zircon single grain dating using the LA-MC-ICP-MS technique was utilized to determine the age of the host rocks of the Juomasuo Au-Co-Cu deposit located in the late Archean ...
P. Nikkola, I. Mänttäri, O.T. Rämö
doaj   +1 more source

Simultaneous Determination of U-Pb Age and Trace Elements of Zircon by Laser Ablation Sector Field Inductively Coupled Plasma-Mass Spectrometry

Yankuang ceshi
Laser ablation sector field inductively coupled plasma-mass spectrometry (LA-SF-ICP-MS) is widely applied in U-Pb dating of zircon due to its remarkable sensitivity.
Linghao ZHAO, Dongyang SUN, Mingyue HU, Jihai YUAN, Chenzi FAN, Xiuchun ZHAN   +5 more
doaj   +1 more source

A revised Ordovician age for the Miranda do Douro orthogneiss, Portugal. Zircon U-Pb ion-microprobe and LA-ICPMS dating

Geologica Acta, 2006
The Miranda do Douro orthogneiss was believed to be the oldest magmatic rock of the Central Iberian Zone, on the base of a U-Pb discordia upper intercept of 618 ± 9 Ma.
F. BEA, P. MONTERO, C. TALAVERA, T. ZINGER   +3 more
doaj   +1 more source

Identifying the volcanic eruption depicted in a Neolithic Painting at Çatalhöyük, Central Anatolia, Turkey [PDF]

, 2014
A mural excavated at the Neolithic Çatalhöyük site (Central Anatolia, Turkey) has been interpreted as the oldest known map. Dating to ~6600 BCE, it putatively depicts an explosive summit eruption of the Hasan Dağı twin-peaks volcano located ~130 km ...
Ulusoy, İnan, Schmitt, A., Ulusoy, I., Erkan Aydar, Danišík Martin, Martin Danišík, Sen, E., Ulusoy İnan, İnan Ulusoy, Aydar, Erkan, Şen, Erdal, Aydar, E., Schmitt Axel K., Oscar M Lovera, Schmitt, Axel K., Danišík, Martin, Lovera, Oscar M, Aydar Erkan, Axel K Schmitt, Lovera, Oscar M., Lovera Oscar M., Lovera, O., Şen Erdal, Erdal Şen, Schmitt, Axel K   +24 more
core   +1 more source

SHRIMP Zircon U-Pb Dating of Mid-Pleistocene Dacite and Discussion of Relative Problems

Yankuang ceshi, 2015
K-Ar and U series disequilibria methods have been applied to geochronology research of young volcanic rocks in Tengchong, China. Previous K-Ar dating methods yielded ages of 0.013 to 17.84 Ma and isochron ages of 0.13 to 2.9 Ma in this area. The U series
LI Lin-lin, WANG Shu-bing, SHI Yu-ruo
doaj   +1 more source

AGE OF THE KINTEREP FORMATION OF THE NORTHWESTERN SALAIR: CHEMOSTRATIGRAPHY AND U-Pb ZIRCON DATING

Геодинамика и тектонофизика, 2022
A comprehensive study of the stratotype section of the Kinterep formation of the North-Western Salair was carried out, including geochemical and isotope (Sr, C, O) studies of carbonate rocks, and U-Pb dating (LA-ICP-MS) of igneous zircon crystals from ...
N. I. Vetrova, E. V. Vetrov, E. F. Letnikova, N. G. Soloshenko   +3 more
doaj   +1 more source

Improving crystallization and eruption age estimation using U-Th disequilibrium dating of young volcanic zircon [PDF]

Geochronology
Quantifying timescales and establishing robust eruption chronologies is critical for understanding the evolution and hazards of volcanic systems. U-Th disequilibrium dating on zircon is especially valuable for young and active systems (< 300 ka ...
Z. Moser, M. Guillong, C. Nathwani, K. Iwahashi, K. Iwahashi, R.-G. Popa, O. Bachmann   +6 more
doaj   +1 more source