Wang Jiliang et al. (2000): Age estimation of the mid-Pleistocene microtektite event in the South China Sea; a case showing the complexity of the sea-land correlation
Leg/Site/Hole:
Related Expeditions:
ODP 124 772
Identifier:
ID:
2001-058018
Type:
georefid
Creator:
Name:
Wang Jiliang
Affiliation:
Tongji University, Laboratory of Marine Geology, Shanghai, China
Role:
author
Name:
Zhao Quanhong
Affiliation:
Role:
author
Name:
Cheng Xinrong
Affiliation:
Role:
author
Name:
Wang Rujian
Affiliation:
Role:
author
Name:
Wang Pinxian
Affiliation:
Role:
author
Identification:
Title:
Age estimation of the mid-Pleistocene microtektite event in the South China Sea; a case showing the complexity of the sea-land correlation
Year:
2000
Source:
Chinese Science Bulletin
Publisher:
Science Press, Beijing, China
Volume:
45
Issue:
24
Pages:
2277-2280
Abstract:
The present study confirms the stratigraphical position of microtektite layer being clearly located below the Brunhes/Matuyama (B/M) boundary. Based on the sedimentation rate derived from the stable isotopic and magnetic data of ODP Site 772A, cores 17957 and 17959 in the South China Sea, the age of the mid-Pleistocene impact event was estimated at 10-12 ka earlier than the Brunhes-Matuyama polarity reversal. However, the microtektites were found above the measured B/M boundary in the loess profile due to the downward deviation of the measured B/M boundary from its true position. This demonstrates the complexity of paleo-magnetic records in the loess profiles which, in turn, causes the confusion in the sea-land stratigraphic correlation.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:16.3900 West:119.4200 East:
119.4200 South:16.3900
Keywords: Quaternary geology; Geochronology; Brunhes Chron; case studies; Cenozoic; cores; geochronology; Leg 124E; magnetization; Matuyama Chron; microtektites; middle Pleistocene; natural remanent magnetization; North Pacific; Northwest Pacific; Ocean Drilling Program; ODP Site 772; Pacific Ocean; paleomagnetism; Pleistocene; Quaternary; remanent magnetization; South China Sea; tektites; upper Cenozoic; upper Quaternary; West Pacific;
.