Qinglai Feng

TL;DR: In this article, an overview of the geological features of the suture zones, the bounding continental fragments and their magmatic, metamorphic and sedimentary records is presented. But uncertainty remains as to which of the many suture regions in Southeast Asia represents the relict of the main ocean, when final ocean closure occurred, and the assembly history of the Eastern Cimmerian and Southeast Asia continental fragments.

TL;DR: The Permian-Triassic crisis was a major turning point in geological history as mentioned in this paper, and the extinction associated with the PTB occurred in two episodes, the main act with a prelude and the epilogue.

TL;DR: In this article, the authors assess secular and regional patterns of productivity variation during the end-Permian mass extinction through an analysis of the burial fluxes of three elemental proxies: total organic carbon (TOC), phosphorus (P), and biogenic barium (Babio), showing that primary productivity rates appear to have increased from the pre-crisis Late Permian through the Early Triassic in many parts of the world.

TL;DR: Wang et al. as discussed by the authors show that widespread end-Permian regression took place in whole South China and the timing of the low ebb of this regression was pinpointed to the Clarkina meishanensis and Hindeodus changxingensis zones.

TL;DR: In this article, the authors report total organic carbon (TOC) concentrations and organic carbon accumulation rates (OCAR) for 40 Permian-Triassic boundary (PTB) sections with a near-global distribution and consider their implications for changes in marine productivity during the boundary crisis.