Quaternary travertine of the Kurai fault zone (Gorny Altai) |
| |
| Authors: | E V Deev E V Sokol Yu M Ryapolova S N Kokh G G Rusanov |
| |
| Institution: | 1.A. A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.National Research Novosibirsk State University,Novosibirsk,Russia;3.V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;4.JSC Gorno–Altaisk Expedition,Maloeniseyskoe,Russia |
| |
| Abstract: | In the Kurai fault zone, travertine forms a matrix cementing clastic material of colluvial and glacial deposits or rarely forming a stockwork in a system of fractures in Palaeozoic rocks. The regular change of composition of solutions in the process of travertine formation has resulted in change of stable Mg–calcite by Sr–aragonite. According to the carbon isotopic composition, the travertine has intermediate genesis between thermal and meteogene. The light oxygen isotopic composition of CaCO3 indicates formational water input. The carbonates inherited Y, Sr, U, and Ni and in some areas, V, As, and Zn from the endogeneous water sources. Given that the Kurai zone travertine cements the Late Pleistocene–Holocene sediments and 14C dating of the carbonates gives a range of >40 000–3475 ± 35 years, the faults serving as routes of migration of the solutions forming the travertine should be considered as active structures. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
