Deep-time Paleogeographic Reconstruction Based on Database:Taking the South China T. approximatus Biozone(Early Ordovician) as an Example

摘要

Paleogeography is a discipline that studies spatial distribution and evolutionary characteristics of geographic objects in earth history(Feng,2003;Feng et al.,2012).It focuses on the sediments,organisms and environmental proxies,most of which are preserved in the rocks.However,a large amount of this geological and biological information was no longer preserved after the geological process of burial.