Magnetic reversal frequency in the Lower Cambrian Niutitang Formation, Hunan Province, South China

Duan, Zongqi1,2,5; Liu, Qingsong2,3; Ren, Shoumai4; Li, Lihui1,5; Deng, Xiaolong1,5; Liu, Jianxing6

2018-08

10.1093/gji/ggy199

GEOPHYSICAL JOURNAL INTERNATIONAL   影响因子和分区

0956-540X

1365-246X

The reversal frequency of the palaeomagnetic field bears great information of evolution of Earth's deep interior. However, there are still debates on the frequency pattern during the older periods of the Phanerozoic. This study investigated the Niutitang Formation (Lower Cambrian) of the Ciye 1 Hole from South China. Rock magnetic results indicate that the dominant magnetic carrier is magnetite. Characteristic remanence magnetizations have been successfully isolated for the weakly magnetized shale rocks through stepwise alternated field demagnetization using the 2G Enterprises Rapid System Magnetometer with a low-noise thin-walled quartz-glass sample holder. Constrained by radiometric ages, our palaeomagnetic results indicated frequent polarity reversals during the period of similar to 524-514 Ma, which backs up the speculation about the episode of the Ediacaran-Cambrian (similar to 550-500 Ma) with a character of reversal hyperactivity.

Palaeomagnetism Rock and mineral magnetism Reversals: process timescale magnetostratigraphy

SCI ; EI

英语

通讯

China Postdoctoral Science Foundation[2014M561047]

Geochemistry & Geophysics

Geochemistry & Geophysics

WOS:000448238600034

OXFORD UNIV PRESS

20183605780227

Geomagnetism ; Lithology ; Magnetite ; Thin walled structures

Geology:481.1 ; Earth Magnetism and Terrestrial Electricity:481.3.2 ; Minerals:482.2

GEOSCIENCES

Web of Science

1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Qingdao Natl Oceanog Lab Sci & Technol, Lab Marine Geol, Qingdao 266237, Peoples R China
3.Southern Univ Sci & Technol, Dept Marine Sci & Engn, Shenzhen 518055, Peoples R China
4.China Geol Survey, Beijing 100037, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China

Duan, Zongqi,Liu, Qingsong,Ren, Shoumai,et al. Magnetic reversal frequency in the Lower Cambrian Niutitang Formation, Hunan Province, South China[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2018,214(2):1301-1312.

Duan, Zongqi,Liu, Qingsong,Ren, Shoumai,Li, Lihui,Deng, Xiaolong,&Liu, Jianxing.(2018).Magnetic reversal frequency in the Lower Cambrian Niutitang Formation, Hunan Province, South China.GEOPHYSICAL JOURNAL INTERNATIONAL,214(2),1301-1312.

Duan, Zongqi,et al."Magnetic reversal frequency in the Lower Cambrian Niutitang Formation, Hunan Province, South China".GEOPHYSICAL JOURNAL INTERNATIONAL 214.2(2018):1301-1312.