Early Cretaceous volcanism and preservation of the Jehol Biota in western Liaoning, NE China

Jiang B, Fürsich F, Sha JG, Wang B, Niu Y (2011)

Publication Language: English

Publication Type: Journal article

Publication year: 2011

Journal

Palaeogeography, Palaeoclimatology, Palaeoecology Elsevier

Book Volume: 302

Pages Range: 255-269

Journal Issue: 3-4

DOI: 10.1016/j.palaeo.2011.01.016

Abstract

The so-called Jehol Biota, an excellently preserved Early Cretaceous biota consisting of both lacustrine and terrestrial organisms, is one of the most important Mesozoic fossillagerstätten. Although there have been extensive palaeontological studies, little work has been done on the volcanic settings under which the biota was preserved. The Sihetun area is the most famous fossil locality of the Jehol Biota in western Liaoning, and the volcanic succession in that area is the most representative and best studied. We use a case study of the volcanic succession of the Lower Cretaceous Yixian Formation in the Sihetun area to reconstruct the volcanic complexes and their history, to propose a depositional model of the volcanic successions, and to understand the relationship between volcanic activity and fossil preservation in western Liaoning. The volcanic succession comprises four volcanic complexes, each with distinct products; a shield volcano, an intermediate multi-vent center, a volcanic lake (in summit caldera), and finally lava domes. The presence of a caldera is postulated from exposures which suggest the presence of an inner topographic wall, bounding faults, and intra-caldera fill. Frequent volcanic activities and widespread existence of volcanic lakes during the Early Cretaceous are thought to account for the exceptional preservation of invertebrates and vertebrates of the Jehol Biota in western Liaoning.

Authors with CRIS profile

Franz Fürsich Naturwissenschaftliche Fakultät

Additional Organisation(s)

Lehrstuhl für Paläoumwelt

Involved external institutions

Nanjing University CN China (CN) Nanjing Institute of Geology and Paleontology CN China (CN)

How to cite

APA:

Jiang, B., Fürsich, F., Sha, J.-G., Wang, B., & Niu, Y. (2011). Early Cretaceous volcanism and preservation of the Jehol Biota in western Liaoning, NE China. Palaeogeography, Palaeoclimatology, Palaeoecology, 302(3-4), 255-269. https://dx.doi.org/10.1016/j.palaeo.2011.01.016

MLA:

Jiang, Baoyu, et al. "Early Cretaceous volcanism and preservation of the Jehol Biota in western Liaoning, NE China." Palaeogeography, Palaeoclimatology, Palaeoecology 302.3-4 (2011): 255-269.

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