GLOBAL CORRELATION OF EARLY TRIASSIC SHALLOW-WATER PLATFORMS IN SOUTH CHINA USING COMBINED MAGNETOSTRATIGRAPHY, CARBON-ISOTOPE EXCURSIONS AND CYCLOSTRATIGRAPHY
We have successfully applied integrated stratigraphy to thick (ca. 1 km) carbonate platform successions in Sichuan Province and Chongqing (Xiejiacao and Xueyu Cave sections) that span most of the Lower Triassic (basal Induan through Olenekian stages) in inner-platform to evaporite facies. These shallow-water sections can be correlated in detail to the bio-magnetic-isotope-cycle reference scales from deepwater facies (e.g., Chaohu, the proposed GSSP for the Olenekian Stage). The correlations are partly constrained by rare horizons with conodonts.
The poster will also present Youping (Guangxi Province), a new bio-mag-isotope reference section in conodont-bearing progressively deepening facies, from shallow carbonate platform facies to deep carbonate and mudstone basin facies, spanning the Early Triassic through the Olenekian-Anisian stage boundary, which can be correlated to Guandao, a possible candidate for the GSSP of the Anisian Stage.