Articles | Volume 12, issue 5
Research article
12 Mar 2015
Research article |  | 12 Mar 2015

Amelioration of marine environments at the Smithian–Spathian boundary, Early Triassic

L. Zhang, L. Zhao, Z.-Q. Chen, T. J. Algeo, Y. Li, and L. Cao

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Cited articles

Algeo, T. J. and Maynard, J. B.: Trace element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems, Chem. Geol., 206, 289–318, 2004.
Algeo, T. J. and Twitchett, R. J.: Anomalous Early Triassic sediment fluxes due to elevated weathering rates and their biological consequences, Geology, 38, 1023–1026, 2010.
Algeo, T. J., Wilkinson, B. H., and Lohmann, K. C.: Meteoric-burial diagenesis of Middle Pennsylvanian limestones in the Orogrande Basin, New Mexico: water/rock interactions and basin geothermics, J. Sediment. Petrol., 62, 652–670, 1992.
Algeo, T. J., Chen, Z. Q., Fraiser, M. L., and Twitchett, R. J.: Terrestrial-marine teleconnections in the collapse and rebuilding of Early Triassic marine ecosystems, Palaeogeogr. Palaeocl., 308, 1–11, 2011.
Bau, M.: Controls on the fractionation of isovalent trace elements in magmatic and aqueous systems: evidence from Y / Ho, Zr / Hf, and lanthanide tetrad effect, Contrib. Mineral Petr., 123, 323–333, 1996.
Short summary
The Smithian--Spathian boundary was a key event in the recovery of marine environments and ecosystems following the end-Permian mass extinction ~1.5 million years earlier. Our analysis of the Shitouzhai section in South China reveals major changes in oceanographic conditions at the SSB intensification of oceanic circulation leading to enhanced upwelling of nutrient- and sulfide-rich deep waters and coinciding with an abrupt cooling that terminated the Early Triassic hothouse climate.
Final-revised paper