SIBERIA AND PERI-SIBERIA:THEIR IDENTITIES AND PALAEOGEOGRAPHY DURING THE PALAEOZOIC

摘要

1 INTRODUCTIONThe end-Permian Siberian Traps are the largest known eruptions in Earth history,but they obscure over 40％ of the land area of the old Sibcrian Craton.That craton has flat-lying or shallow-dipping sedimentary rocks from late Neoproterozoic to Recent in age,indicating that there has been little tectonic activity (apart from the Siberian Traps)over most of the craton fof over half a billion years.However,in contrast,and surrounding the craton,there are substantial zones of major tectonic disruption.