Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Paul Pasteels"'
Autor:
Wenhua Zhang, A. Boven, Jan Hertogen, Huaiyu He, Lea Punzalan, Xiangjun Luo, Paul Pasteels, Jiaqi Liu, Zhengfu Guo
Publikováno v:
Journal of Petrology. 46:33-78
Potassic volcanism in the western Sichuan and Yunnan Provinces, SE Tibet, forms part of an extensive magmatic province in the eastern Indo-Asian collision zone during the Paleogene (40–24Ma). The dominant rock types are phlogopite-, clinopyroxenean
Autor:
Jan Hertogen, Xiao-Quan Luo, Wenqi Zhang, Paul Pasteels, A. Boven, Lea Punzalan, Z H F Guo, J. Q. Liu
Publikováno v:
Journal of Asian Earth Sciences. 20:157-175
The biostratigraphically constrained Permo-Triassic Emeishan Volcanic Province (EVP), extending over wide areas in southwest China, has been recently considered as a Large Igneous Province contemporaneous with the Siberian Traps and the siliceous tuf
Publikováno v:
Journal of African Earth Sciences. 26:463-476
The Toro-Ankole volcanics in the northern sector of the Western Branch of the East African Rift are generally assumed to be of Quaternary age. New field observations and comparative KAr and ArAr analyses on whole rock samples and phenocrysts of
Autor:
Lea Punzalan, Zh. G. Yin, Jan Hertogen, Paul Pasteels, J. Q. Liu, Wu Xihao, Xiao-Quan Luo, Z H F Guo, A. Boven
Publikováno v:
Chinese Science Bulletin. 43:80-80
Publikováno v:
Chinese Science Bulletin. 43:14-14
Autor:
ZHENGFU GUO, JAN HERTOGEN, JIAQI LIU, PAUL PASTEELS, ARIEL BOVEN, LEA PUNZALAN, HUAIYU HE, XIANGJUN LUO, WENHUA ZHANG
Publikováno v:
Journal of Petrology; Jan2005, Vol. 46 Issue 1, p33-78, 46p
Publikováno v:
Chemical Geology. 57:145-154
Kos pumice which may represent an important marker for the Upper Pleistocene stratigraphy in the Aegean area has been dated at 0.24 ± 0.02 Ma by conventional K/1bAr dating on feldspar concentrates and whole-rock samples. This figure is at variance w
Publikováno v:
Lithos. 12:199-208
The successive intrusive events in the eastern part of the south Rogaland anorthosito-mangeritic complex have been dated by the UPb method applied to zircon, sphene, monazite, uraninite and accessorily by the RbSr whole rock isochron method. Th
Autor:
Paul Pasteels
Publikováno v:
Earth-science reviews, 4
A short review is made of the present status of the three methods of radioactive dating applicable to common rock types. These methods rest upon the disintegration schemes of uranium, rubidium and potassium respectively. Their respective fields of ap
Publikováno v:
Nature. 301:21-23
Although the base of the Phanerozoic is an important date in the history of life and of the Earth's crust, few conclusive data have been available to estimate the numerical age of this boundary. Accurate and reliable modern data now exist, however, a