EARLY CAMBRIAN DEPOSITS OF THE CONTINENTAL MARGIN (SOUTH OF TUVA, TEREGTIG FORMATION): RESULTS OF U–Pb DATING OF DETRITAL ZIRCONS AND Sr-CHEMOSTRATIGRAPHY-Reference-Cited by-同舟云学术

EARLY CAMBRIAN DEPOSITS OF THE CONTINENTAL MARGIN (SOUTH OF TUVA, TEREGTIG FORMATION): RESULTS OF U–Pb DATING OF DETRITAL ZIRCONS AND Sr-CHEMOSTRATIGRAPHY

Published:2023-10-01 Issue:2 Volume:512 Page:165-173
ISSN:2686-7397
Container-title:Доклады Российской академии наук. Науки о Земле
language:
Short-container-title:Doklady Rossijskoj akademii nauk. Nauki o Zemle

Author:

Ivanov A. V.¹,Letnikova E. F.¹,Shkolnik S. I.²,Maslov A. V.³,Vetrova N. I.¹

Affiliation:

1. Sobolev Institute of Geology and Mineralogy Siberian Branch of the Russian Academy of Sciences

2. Institute of the Earth’s Crust Siberian Branch of the Russian Academy of Sciences

3. Institute of Geology Russian Academy of Sciences

Abstract

The sedimentation interval (530–520 Ma) of the Teregtig Formation deposits in southern Tuva is estimated based on U–Pb dating of detrital zircons from terrigenous deposits and Sr-chemostratigraphy of carbonate rocks. The main source area for clastic material, containing a large amount of detrital zircon grains, were rocks with an age of 580 Ma. The presence of a wide diversity of Precambrian detrital zircons indicates that sedimentation of the Teregtig Formation took place within a block of continental crust with a long evolutionary history. The presence of numerous chromites in their matrix indicates that the rocks of the Agardag ophiolite complex were also part of the eroded land during the accumulation of conglomerates of the Teregtig Formation.

Publisher

The Russian Academy of Sciences

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