Skip to Main Content
Book Chapter

Gondwanan faunal signatures from Early Palaeozoic terranes of Kazakhstan and Central Asia: evidence and tectonic implications

By
Leonid E. Popov
Leonid E. Popov
1
Department of Geology
,
National Museum of Wales
,
Cardiff CF10 3NP
,
UK
Search for other works by this author on:
Michael G. Bassett
Michael G. Bassett
1
Department of Geology
,
National Museum of Wales
,
Cardiff CF10 3NP
,
UK
Search for other works by this author on:
Vyacheslav G. Zhemchuzhnikov
Vyacheslav G. Zhemchuzhnikov
2
Geostan JSC
,
Expo City 42, Timiryazev Street, 050057 Almaty
,
Kazakhstan
Search for other works by this author on:
Lars E. Holmer
Lars E. Holmer
3
Institute of Earth Sciences, Palaeobiology
,
Uppsala University
,
SE-752 36 Uppsala
,
Sweden
Search for other works by this author on:
Inna A. Klishevich
Inna A. Klishevich
4
Department of Historical Geology, Geological Faculty
,
St. Petersburg State University
,
Universitetskaya Naberezhnaya 7/9, 199034 St. Petersburg
,
Russia
Search for other works by this author on:
Published:
January 01, 2009

Abstract

Two separate tectonic blocks in the southwestern segment of the Kazakhstanian orogen, the Chu–Ili terrane and the Karatau–Naryn terrane (with particular attention to Malyi Karatau), are selected to illustrate their geological history and major biogeographical signatures from the Cambrian to the early Silurian. Mid- to Late Ordovician brachiopod and trilobite faunas of Chu–Ili show increased endemicity of shallow shelf assemblages, whereas distinct links to equatorial (‘east’) peri-Gondwanan are more evident in trilobite assemblages of the outer shelf. In the Late Ordovician, strong biogeographical affinities to equatorial Gondwanan faunas became firmly established and they are also traceable into the Silurian. Early Cambrian faunas of Malyi Karatau show remarkable similarity to those of South China. From the Middle Cambrian this region evolved as an isolated carbonate seamount, but until the Early Ordovician links to South China faunas were still evident. Benthic faunas from both regions show weak links to contemporaneous faunas of Baltica and little in common with Cambrian and Ordovician faunas of the Siberian craton. This suggests their location in low southern latitudes, in relative proximity to East Gondwana, which places some constraints on plate-tectonic reconstructions in relation to the southern cluster of Kazakhstanian terranes, including Karatau–Naryn, North Tien Shan and Chu–Ili.

You do not currently have access to this article.

Figures & Tables

Contents

Geological Society, London, Special Publications

Early Palaeozoic Peri-Gondwana Terranes: New Insights from Tectonics and Biogeography

M. G. Bassett
M. G. Bassett
National Museum of Wales, Cardiff, UK
Search for other works by this author on:
Geological Society of London
Volume
325
ISBN electronic:
9781862395732
Publication date:
January 01, 2009

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal