Quaternary travertine of the Kurai fault zone (Gorny Altai)


Дәйексөз келтіру

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Аннотация

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.

Авторлар туралы

E. Deev

A. A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch; National Research Novosibirsk State University

Хат алмасуға жауапты Автор.
Email: deevev@ngs.ru
Ресей, Novosibirsk; Novosibirsk

E. Sokol

V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch

Email: deevev@ngs.ru
Ресей, Novosibirsk

Yu. Ryapolova

National Research Novosibirsk State University

Email: deevev@ngs.ru
Ресей, Novosibirsk

S. Kokh

V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch

Email: deevev@ngs.ru
Ресей, Novosibirsk

G. Rusanov

JSC Gorno–Altaisk Expedition

Email: deevev@ngs.ru
Ресей, Maloeniseyskoe

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