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Liang S.J.,China Aerospace Geophysical Survey and Remote Sensing Center for Land Resources | Liang S.J.,Airborne
Applied Mechanics and Materials | Year: 2014

Interpretation work is an important work in Time-domain Electromagnetic method. There are several steps which can affect interpreting result, and all processing tool should be considered before interpreting. Leveling effect to data profile and Conduction Depth Image result was analyzed in the paper. Comparing graphic show that leveling tool should be carefully used in data, to get a suitable interpreting result. We also provide some suggestion on how to use leveling method reasonable. © (2014) Trans Tech Publications, Switzerland. Source

Zhou Z.,China University of Ceosciences | Wang G.,China University of Ceosciences | Zhang D.,China University of Ceosciences | Gu Y.,Tianjin Institute of Geology and Mineral Resources | And 4 more authors.
Yanshi Xuebao/Acta Petrologica Sinica | Year: 2016

The Bayan Obo Group outcropped in the Dajingpo, Siziwangqi, Inner Mongolia, is the eastern extension of Bayan Obo ore deposit. Two gabbro plutons intruded into Bayan Obo Group were discovered through geological survey, whose zircon ages will provide new clues to constrain the controversial formation time of the Bayan Obo Group. The gabbro intruded into Dulahala Formation is named Jishengtai pluton, while the one intruded into Bilute Formation is termed Dajingpo pluton. LA-ICP-MS U-Pb dating yielded ages of 1670 ± 14Ma (MSWD = 1.6) for Jishengtai pluton and 1342 ±9Ma ( MSWD =0. 94) for Dajingpo pluton, respectively. Based on the new ages, together with published data of Proterozoic strata and magmatic events in Yanliao rift, we suggest that Dulahala and Jianshan formations should belong to Paleoproterzoic Changchengian System, equivalent to Statherian in International Clironostratigraphic Chart (ICC); Halahuogete Formation should be Mesoproterozoic Jixianian System, equivalent to Calymmian in ICC; Bilute Formation should be Mesoproterozoic lower part of an awaiting build System, the same to Ectasian in ICC, and the Baiyinbaolage Formation should be Neoproterozoic Qingbaikouian System, which referred as Tonian in ICC. The magmatic events in the North China Craton, Bayan Obo and Yanliao rifts are comparable, which probably related to the breakup of the Columbia supercontinent. Source

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