The influence of ocean chemistry and syndepositional faulting on the termination of the southwest Yangtze Platform Guizhou Province, south China

TL;DRAbstract

The Yangtze Platform was a vast carbonate platform bordering the Nanpanjiang Basin on the southern end of the South China Block from the Late Paleozoic till its demise in the Late Triassic. The modern location of the platform is in southern Guizhou Province, China. The Middle-Late Triassic development and termination differed laterally along the margin of the Yangtze Platform. The northeast portion of the platform developed a progradational margin and terminated with a shift from shallow-water, peritidal carbonates to shallow-water siliciclastics. It is believed that this portion of the platform terminated because it was overwhelmed by the clastic influx. The southwestern portion of the platform developed an aggradational and back-stepping margin and terminated with the shift from sedimentation of shallow-water, peritidal carbonates to deeper-water, pelagic carbonates and then to very deep-water argillaceous limestone and shale. It is believed that the southwestern portion terminated d

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