Paleomagnetism on the Quaternary marine sediment at the DH-1 long-core site in the Korean continental margin of the East Sea

Byungju Lee, Woo Hun Ryang, Seong Jae Doh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A long core of 23.6 m was acquired in the Korean continental margin of the western East Sea. The core site of the DH-1 is located in the offshore of the Donghae City and the water depth is 357.8 m deep. In this area, the paleomagnetism and magnetostratigraphy were firstly reported using 420 samples collected from the long-core sediments. Based on the inclination distribution of the depositional remanent magnetization, the DH-1 core could be divided into two upper and lower units at the boundary of 1750 cm below seafloor. The upper unit is characterized by a positive polarity, whereas the lower unit by a negative polarity. The boundary of the upper and lower units was interpreted as the Brunhes-Matuyama boundary (778 ka). The chemical components of tephra layer at 2014 cm below seafloor belong to alkaline series, plotted between the tephra components of the Mount Baekdu and Ulleung Island.

Original languageEnglish
Pages (from-to)279-287
Number of pages9
JournalGeosciences Journal
Issue number3
Publication statusPublished - 2013 Sept

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS: We are very grateful to two anonymous reviewers for their critical and helpful comments. We also thank Drs. C.W. Lee, H.S. Choi, Y.S. Lee, J.H. Jin, S.P. Kim (KIGAM), Profs. D.C. Kim (Pukyong National University), Y.K. Kwon (Kongju National University), and Dr. J.H. Choi (ADD) for helpful discussion in the field and laboratory. This study was indebted to marine project of Agency for Defense Development, fulfilled during 2000–2003. The studied core was acquired by Marine Geology Departments of Korea Institute of Geoscience and Mineral Resources (KIGAM). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0025733).


  • Brunhes-Matuyama boundary
  • East Sea
  • magnetostratigraphy
  • tephra

ASJC Scopus subject areas

  • General Environmental Science
  • General Earth and Planetary Sciences


Dive into the research topics of 'Paleomagnetism on the Quaternary marine sediment at the DH-1 long-core site in the Korean continental margin of the East Sea'. Together they form a unique fingerprint.

Cite this