U-Pb Ages from the Neoproterozoic Doushantuo Formation, China-Reference-Cited by-同舟云学术

U-Pb Ages from the Neoproterozoic Doushantuo Formation, China

Published:2005-04 Issue:5718 Volume:308 Page:95-98
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Condon Daniel¹²,Zhu Maoyan¹²,Bowring Samuel¹²,Wang Wei¹²,Yang Aihua¹²,Jin Yugan¹²

Affiliation:

1. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

2. Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing 210008, China.

Abstract

U-Pb zircon dates from volcanic ash beds within the Doushantuo Formation (China) indicate that its deposition occurred between 635 and 551 million years ago. The base records termination of the global-scale Marinoan glaciation and is coeval with similar dated rocks from Namibia, indicating synchronous deglaciation. Carbon isotopic and sequence-stratigraphic data imply that the spectacular animal fossils of the Doushantuo Formation are for the most part younger than 580 million years old. The uppermost Doushantuo Formation contains a pronounced negative carbonate carbon isotopic excursion, which we interpret as a global event at circa 551 million years ago.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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