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Xiao Z.,No1 Institute Of Geological & Mineral Resources Survey Of Henan | Wang Z.,No1 Institute Of Geological & Mineral Resources Survey Of Henan | Wu Y.,No1 Institute Of Geological & Mineral Resources Survey Of Henan | Lu D.,No1 Institute Of Geological & Mineral Resources Survey Of Henan | And 3 more authors.
Geological Bulletin of China | Year: 2015

There exists a suite of gray rhyolitic rocks in Sonid Left Banner of Inner-Mongolia. According to the petrological features, these volcanic rocks are considered to be a part of Upper Cretaceous Baiyingaolao Formation. With the LA-ICP-MS dating analysis, however, the authors obtained four U-Pb ages, i.e., 305.1±1.1 Ma, 304.5±1.1 Ma, 305.7±1.9 Ma, and 303.6±1.1 Ma, indicating that they belong to the Upper Carboniferous Baoligaomiao Formation. The result achieved by the authors has guiding significance for stratigraphic division and determination of magma evolution. ©, 2015, Science Press. All right reserved. Source

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