Inclination shallowing study of the Early-Neoproterozoic Liantuo Formation in South China and its paleogeographic implications

JING Xianqing; YANG Zhenyu; TONG Yabo; WANG Heng; HAN Zhirui; XU Yingchao

2016 Vol. 35, No. 11

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JING Xianqing, YANG Zhenyu, TONG Yabo, WANG Heng, HAN Zhirui, XU Yingchao. Inclination shallowing study of the Early-Neoproterozoic Liantuo Formation in South China and its paleogeographic implications[J]. Geological Bulletin of China, 2016, 35(11): 1797-1806.

Citation:

JING Xianqing, YANG Zhenyu, TONG Yabo, WANG Heng, HAN Zhirui, XU Yingchao. Inclination shallowing study of the Early-Neoproterozoic Liantuo Formation in South China and its paleogeographic implications[J]. Geological Bulletin of China, 2016, 35(11): 1797-1806.

Inclination shallowing study of the Early-Neoproterozoic Liantuo Formation in South China and its paleogeographic implications

1. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, Jiangsu, China;
2. College of Resources, Environment and Tourism, Capital Normal University, Beijing 100048, China;
3. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

Received Date: 06 July 2016

Revised Date: 12 August 2016

Publish Date: 15 November 2016

Abstract

Abstract

New dating data indicate that the Liantuo Formation ended at 715Ma, and hence the constraint of the paleolatitude of the Liantuo Formation will shed a light on the "Snowball Earth" theory. Researchers have obtained reliable paleomagnetic results from the Liantuo Formation, but the inclination shallowing has not been considered by them. In this paper, the authors obtained a corrected parameter by conducting a remnant anisotropy research on Liantuo Formation. The inclination shallowing in Liantuo Formation is 2.6°, which results in a latitude difference of 3.9°±6°. The reconstruction of the South China and Australia block at 720Ma shows the diamictite distribution from middle latitude to tropical region, which proves the "Snowball Earth" theory.
- Liantuo Formation /
- inclination shallowing /
- Snowball Earth /
- Neoproterozoic

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References

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