Paleomagnetic and Be-isotope age of the ferromanganese crust in the Western Pacific

Title
Paleomagnetic and Be-isotope age of the ferromanganese crust in the Western Pacific
Author(s)
김원년; 김종욱; 신지영; 오지혜
KIOST Author(s)
Kim, Wonnyon(김원년)Kim, Jonguk(김종욱)Shin, Ji Young(신지영)Oh, Jihye(오지혜)
Publication Year
2016-03-17
Abstract
Age of ferromanganese crust obtained in the Western Pacific (~20 °N) was estimated by paleomagnetic measurements, Be-isotope and Co concentration. Magnetic measurements were performed after Oda et al. (2011) using a superconducting quantum interference device magnetometer (SSM). Natural remanent magnetization perpendicular to the growth lamella of the crust samples shows more than 30 ancient geomagnetic field reversals down to the depth of ~ 40 mm. Comparison with the reference geomagnetic time scale reveals ~10 Ma, indicating an average growth rate of ~4 mm/Myr. Be-isotope dating also presents a similar result showing 8.22 Ma at the depth of ~30 mm. interference device magnetometer (SSM). Natural remanent magnetization perpendicular to the growth lamella of the crust samples shows more than 30 ancient geomagnetic field reversals down to the depth of ~ 40 mm. Comparison with the reference geomagnetic time scale reveals ~10 Ma, indicating an average growth rate of ~4 mm/Myr. Be-isotope dating also presents a similar result showing 8.22 Ma at the depth of ~30 mm.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24927
Bibliographic Citation
International Workshop on Marine Manganese Minerals at Kochi in 2016, pp.29, 2016
Publisher
Kochi University
Type
Conference
Language
English
Publisher
Kochi University
Related Researcher
Research Interests

Paleomagnetism,Environmental Science,Geology,고지자기,환경과학,지질학

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