NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE

NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE

On the basis of isotopic-geochemical studies and analysis of geological evidences heterogeneity of Hamsara terrane has been determined. Formation of stationed metamorphosed layers underlying the Hamsara formation occurred not earlier than 630 Ma, probably in the oceanic island arc system. Acidic eff...

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Main Authors: S. I. Shkolnik, L. Z. Reznitsky, E. F. Letnikova, A. I. Proshenkin
Format: Article
Language:English
Published: Institute of the Earth's crust, Siberian Branch of RAS 2017-09-01
Series:Geodinamika i Tektonofizika
Online Access:https://www.gt-crust.ru/jour/article/view/431
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spelling doaj-3653921eaeb3436e96b45fd8f8587f0e2021-07-29T08:39:51ZengInstitute of the Earth's crust, Siberian Branch of RASGeodinamika i Tektonofizika2078-502X2017-09-018355756010.5800/GT-2017-8-3-0290290NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANES. I. Shkolnik0L. Z. Reznitsky1E. F. Letnikova2A. I. Proshenkin3Institute of the Earth’s Crust, Siberian Branch of RASInstitute of the Earth’s Crust, Siberian Branch of RASV.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of RASV.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of RASOn the basis of isotopic-geochemical studies and analysis of geological evidences heterogeneity of Hamsara terrane has been determined. Formation of stationed metamorphosed layers underlying the Hamsara formation occurred not earlier than 630 Ma, probably in the oceanic island arc system. Acidic effusive rocks of Hamsara formation were formed in intraplate condition in the range of 462–464 Ma. Sediments of Hamsara formation couldn’t be the part of island arc system and belong to completely other period of geological region development. This is the time of completion of accretion-collision events in the northern part of Altai-Sayan fragment of CAFB adjacent to the Siberian platform.https://www.gt-crust.ru/jour/article/view/431
collection DOAJ
language English
format Article
sources DOAJ
author S. I. Shkolnik
L. Z. Reznitsky
E. F. Letnikova
A. I. Proshenkin
spellingShingle S. I. Shkolnik
L. Z. Reznitsky
E. F. Letnikova
A. I. Proshenkin
NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE
Geodinamika i Tektonofizika
author_facet S. I. Shkolnik
L. Z. Reznitsky
E. F. Letnikova
A. I. Proshenkin
author_sort S. I. Shkolnik
title NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE
title_short NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE
title_full NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE
title_fullStr NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE
title_full_unstemmed NEW DATA ABOUT AGE AND GEODYNAMIC NATURE OF HAMSARA TERRANE
title_sort new data about age and geodynamic nature of hamsara terrane
publisher Institute of the Earth's crust, Siberian Branch of RAS
series Geodinamika i Tektonofizika
issn 2078-502X
publishDate 2017-09-01
description On the basis of isotopic-geochemical studies and analysis of geological evidences heterogeneity of Hamsara terrane has been determined. Formation of stationed metamorphosed layers underlying the Hamsara formation occurred not earlier than 630 Ma, probably in the oceanic island arc system. Acidic effusive rocks of Hamsara formation were formed in intraplate condition in the range of 462–464 Ma. Sediments of Hamsara formation couldn’t be the part of island arc system and belong to completely other period of geological region development. This is the time of completion of accretion-collision events in the northern part of Altai-Sayan fragment of CAFB adjacent to the Siberian platform.
url https://www.gt-crust.ru/jour/article/view/431
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AT lzreznitsky newdataaboutageandgeodynamicnatureofhamsaraterrane
AT efletnikova newdataaboutageandgeodynamicnatureofhamsaraterrane
AT aiproshenkin newdataaboutageandgeodynamicnatureofhamsaraterrane
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