Results 101 to 110 of about 2,694 (244)

Is there a Grenvillian basement in the Guerrero-Morelos Platform of Mexico?

Geologica Acta, 2007
In the Guerrero-Morelos platform (Guerrero State, Mexico) the adakitic rocks of Early Tertiary age contain abundant hornblende-rich tonalite xenoliths. Zircon crystals have been concentrated from both adakites and xenoliths, and dated using in-situ U-Pb ...
G. Levresse, J. Tritlla, E. Deloule, P. J. PINTO LINARES   +3 more
doaj   +1 more source

From ID-TIMS U-Pb dating of single monazite grain to APT-nanogeochronology: application to the UHT granulites of Andriamena (North-Central Madagascar)

BSGF - Earth Sciences Bulletin
The causes of U-Pb isotopic discordance documented by Paquette et al. (2004) in monazite grains from the ultra-high temperature (UHT) granulite of the Andriamena unit of Madagascar are re-evaluated in the light of nanoscale crystal-chemical ...
Turuani M.J., Seydoux-Guillaume A.-M., Laurent A.T., Fougerouse D., Harley S.L., Reddy S.M., Goncalves P., Saxey D.W., Michaud J., Montel J.-M., Nicollet C., Paquette J.-L.   +11 more
doaj   +1 more source

Mineralogy of the inclusions and age of zircon from granite basement of Verkhnerechensk area (Yamal peninsula)

Литосфера, 2017
The study of minerals-prisoners in accessory zircons is gradually evolving into an important geological-petrological task. Such a study can show not only the earliest mineral rock association, but also evaluate the “sealed” mineral paragenesis of zircon,
Yuriy V. Erokhin, Kirill S. Ivanov, Victor A. Koroteev, Vera V. Khiller   +3 more
doaj   +1 more source

Petrogenesis of the Gaofengshan granite in Gejiu area, Yunnan Province: zircon U-Pb dating and geochemical constraints

, 2012
The Gaofengshan granite is located in the eastern part of the Gejiu ore district, Yunnan Province. The lithology of the granitoid is mainly medium grained biotite monzonitic granite.
Zhang, Juan, Cheng, YanBo, Mao, JingWen, Li, XiaoLong   +3 more
core  

Evolving Yangtze River reconstructed by detrital zircon U-Pb dating and petrographic analysis of Miocene marginal Sea sedimentary rocks of the Western Foothills and Hengchun Peninsula, Taiwan

, 2017
© 2017. American Geophysical Union. All Rights Reserved. The timing of the establishment of the Yangtze River, whether prior to the early Miocene (~24 Ma) or more recently (~2 Ma), has been a point of much debate.
Yuejun Wang, Yi Yan, Huang, Chiyue, Peter D. Clift, Fu, Xiaowei, Wang, Yuejun, Xinchang Zhang, Zhang, Xinchang, Duofu Chen, Xiaowei Fu, Chiyue Huang, Yan, Yi, Clift, Peter D., Chen, Duofu   +13 more
core   +1 more source

Holocene Provenance Identification and Climate Control of Indus Basin By Using Radiogenic Techniques and Clay Mineralogy [PDF]

International Journal of Economic and Environment Geology, 2011
Two commonly used isotopic methods (Zircon U-Pb dating and K-feldspar Pb dating) were employed for the Holocene provenance identification within the Indus basin.
ANWAR ALIZAI
doaj  

SHRIMP U-Pb zircon dating on Nyainqentanglha granite in central Lhasa block

Chinese Science Bulletin, 2004
The Nyainqentanglha granite, a batholith with an area of 1500 km2 in the central Lhasa block, comprises mainly medium-fine-grained biotite monzonitic granite and medium-coarse-grained biotite monzonitic granite. Their contact relationship suggests that the medium-fine-grained biotite monzonitic granite was crystallized earlier than the medium-coarse ...
Qisheng Liu, Zhenhan Wu, Daogong Hu, Peisheng Ye, Wan Jiang, Yanbin Wang, Hancheng Zhang   +6 more
openaire   +1 more source

Long story encrypted in a small grain – zircon from meta-andesite in the Lower Köli Nappes reveals a complex history of the Virisen Arc Terrane, Scandinavian Caledonides, Sweden

Mineralogia
This short report presents the investigation results on the zircon from meta-andesitic rock from the Ankarede Volcanite Formation of the Lower Köli Nappe Complex in Scandinavian Caledonides. Previous U-Pb dating revealed a wide span of dates ranging from
Walczak Katarzyna A., Włodek Adam, Cuthbert Simon, Carter Isabel S. M., Ziemniak Grzegorz   +4 more
doaj   +1 more source

Comment on ‘Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa’

Terra Nova, EarlyView.
Sérgio P. Neves, Alain Vauchez
wiley   +1 more source

detrital zircon U-Pb dating

These data are taken from the Gasi section of the Tula Basin. The coordinates of the sample points are：GS016 (88.417736E 38.083125N)/ GS017 (88.417017E 38.085875N)/ GS022 (88.416350E 38.091683N). The samples used the New wave 193nm excimer Laser Ablation
Jingzhen Peng (18091636)
core   +1 more source