Fault slip analysis of Quaternary faults in southeastern Korea

Youngdo Park, Jin-Han Lee, Seung Hak Yoo

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The Quaternary stress field has been reconstructed for southeast Korea using sets of fault data. The subhorizontal direction of the maximum principal stress (σ1) trended ENE and the direction of the minimum principal stress (σ3) was nearly vertical. The stress ratio (Φ = (σ2 - σ3)/ (σ1 - σ3)) value was 0.65. Two possible interpretations for the stress field can be made in the framework of eastern Asian tectonics; (1) The σHmax trajectory for southeast Korea fits well with the fan-shaped radial pattern of maximum principal stress induced by the India-Eurasia collision. Thus, we suggest that the main source for this recent stress field in southeast Korea is related to the remote India-Eurasia continental collision. (2) The stress field in Korea shows a pattern similar to that in southwestern Japan. The origin for the E-W trending σHmax in Japan is known to be related to the mantle upwelling in the East China Sea. Thus, it is possible that Quaternary stress field in Korea has evolved synchronously with that in Japan. We suggest further studies (GPS and in situ stress measurement) to test these hypotheses.

Original languageEnglish
Pages (from-to)118-125
Number of pages8
JournalGondwana Research
Volume9
Issue number1-2
DOIs
Publication statusPublished - 2006 Jan 1

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fault slip
stress field
stress measurement
continental collision
in situ stress
GPS
collision
trajectory
analysis
tectonics

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Fault slip analysis of Quaternary faults in southeastern Korea. / Park, Youngdo; Lee, Jin-Han; Yoo, Seung Hak.

In: Gondwana Research, Vol. 9, No. 1-2, 01.01.2006, p. 118-125.

Research output: Contribution to journalArticle

Park, Youngdo ; Lee, Jin-Han ; Yoo, Seung Hak. / Fault slip analysis of Quaternary faults in southeastern Korea. In: Gondwana Research. 2006 ; Vol. 9, No. 1-2. pp. 118-125.
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