Articles | Volume 26
Progress report
02 Dec 2019
Progress report |  | 02 Dec 2019

Coring the sedimentary expression of the early Toarcian Oceanic Anoxic Event: new stratigraphic records from the Tethys Ocean

Elisabetta Erba, Gabriele Gambacorta, Stefano Visentin, Liyenne Cavalheiro, Dario Reolon, Giulia Faucher, and Matteo Pegoraro

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Cited articles

Al-Suwaidi A. H., Angelozzi, G. N., Baudin F., Damborenea, S. E., Hesselbo, S. P., Jenkyns, H. C., Manceñido M. O., and Riccardi A. C.: First record of the Early Toarcian Oceanic Anoxic Event from the Southern Hemisphere, Neuquén Basin, Argentina, J. Geol. Soc. London, 167, 633–636, 2010. 
Bellanca, A., Masetti, D., Neri, R., and Venezia, F.: Geochemical and sedimentological evidence of productivity cycles recorded in Toarcian black shales from the Belluno Basin, Southern Alps, northern Italy, J. Sediment. Res., 69B, 466–476, 1999. 
Bernoulli, D. and Jenkyns, H. C.: Alpine, Mediterranean, and Central Atlantic Mesozoic facies in relation to the early evolution of the Tethys, in: Modern and Ancient Geosynclinal Sedimentation, edited by: Dott, R. H. and Shaver R. H., Soc. Econ. Paleont. Mineral., Spec. Publ., 19, 129–160, 1974. 
Bernoulli, D. and Jenkyns, H. C.: Ancient oceans and continental margins of the Alpine-Mediterranean Tethys: Deciphering clues from Mesozoic pelagic sediments and ophiolites, Sedimentology, 56, 149–190, 2009. 
Bosence, D., Procter, E., Aurell, M., Kahla, A. B., Boudagher-Fadel, M., Casaglia, F., Cirilli, S., Mehdie, M., Nieto, L., Rey, J., Scherreiks, R., Soussi, M., and Waltham, D.: A Dominant Tectonic Signal in High-Frequency, Peritidal Carbonate Cycles? A Regional Analysis of Liassic Platforms from Western Tethys, J. Sedimet. Res., 79, 389–415, 2009. 
Short summary
The Toarcian Oceanic Anoxic Event (T-OAE) was cored at Colle di Sogno and Gajum in the Lombardy Basin (northern Italy), where pelagic successions guarantee a continuous record of this paleoenvironmental perturbation. The Sogno and Gajum cores recovered high-quality sediments deposited prior to, during, and after the T-OAE. Ongoing research is devoted to reconstructing the marine ecosystem dynamics and resilience under short- and long-term perturbations analogous to current global changes.