Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Russian Geology and Geophysics

2014 year, number 1

UNIQUE LOCATION OF HYDROTHERMAL BIOTA IN THE LOWER CAMBRIAN SEDIMENTARYVOLCANOGENIC COMPLEX OF THE KYZYLTASHTYG ORE FIELD (Eastern Tuva)

A.A. Terleev1, V.A. Simonov2, A.V. Kanygin1, D.A. Tokarev1, S.I. Stupakov2, A.V. Kotlyarov2
1A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Koptyuga 3, Novosibirsk, 630090, Russia
2V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
Keywords: Hydrothermal biota, Lower Cambrian sedimentary-volcanogenic sequences, KyzylTashtyg pyrite deposit, Eastern Tuva

Abstract

Study of Early Cambrian sedimentary-volcanogenic complexes hosting the KyzylTashtyg pyrite deposit in Eastern Tuva has revealed cyanobacteria and algae that existed in zones of ore-forming hydrothermal systems similar in characteristics to present-day black smokers at ocean bottoms. Along with archaeocyaths and Cyanophyta from the host sedimentary rocks and microfossils from basalt amygdules, various cyanobacteria, monocyatheans, and sponge spicules have been found in ferrosiliceous deposits and metasedimentary rocks. Scanning electron microscopic, mineralogical, and thermobarogeochemical studies helped to reconstruct their hydrothermal environment.

DOI: http://dx.doi.org/10.1016/j.rgg.2013.12.004