FN Archimer Export Format
PT J
TI Correlation of paleoearthquake records at multiple sites along the southern Yangsan Fault, Korea: Insights into rupture scenarios of intraplate strike-slip earthquakes
BT 
AF Kim, Taehyung
   Choi, Jin-Hyuck
   Cheon, Youngbeom
   Lee, Tae-Ho
   Kim, Namgwon
   Lee, Hoil
   Kim, Chang-Min
   Choi, Yire
   Bae, Hankyung
   Kim, Young-Seog
   Ryoo, Chung-Ryul
   Klinger, Yann
AS 1:1;2:1;3:1;4:1;5:2;6:1;7:1;8:1;9:1,3;10:4;11:1;12:5;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;
C1 Active Tectonics Research Center, Korea Institute of Geosciences and Mineral Resources, Daejeon 34132, Republic of Korea
   Department of Civil and Environmental Engineering, University of Strathclyde, Galasgow G11XJ, UK
   Department of Geology, Kangwon National University, Chuncheon 24341, Republic of Korea
   Department of Earth and Environmental Sciences, Pukyong National University, Busan 48513, Republic of Korea
   Université de Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
C2 KIGAM, SOUTH KOREA
   UNIV STRATHCLYDE, UK
   UNIV NATL KANGWON, SOUTH KOREA
   UNIV NATL PUKYONG, SOUTH KOREA
   UNIV PARIS CITE, FRANCE
IF 2.9
TC 6
UR https://archimer.ifremer.fr/doc/00830/94151/101403.pdf
   https://archimer.ifremer.fr/doc/00830/94151/101404.docx
LA English
DT Article
CR PAMELA : PASSIVE MARGINS EXPLORATION LABORATORIES
   PAMELA-MOZ03
   PAMELA-MOZ05
BO Pourquoi pas ?
DE ;Intraplate area;Southern Yangsan Fault;Rupture scenario;Partial rupture;Geometric discontinuity
AB he construction of spatiotemporal models of earthquake occurrence for intraplate areas is challenging due to the low deformation rates in these areas. In this study, we conducted paleoseismological investigations along the southern Yangsan Fault (SYF), a typical low-deformation-rate fault, on the Korean Peninsula. The SYF is distinct from the northern Yangsan Fault (NYF), and the boundary between them is located at the junction between the NNE-striking YF and another major structure, the NNW-striking Ulsan Fault (UF), which branches off from the YF. Paleoseismological trenches at four sites along the SYF indicate that this fault section has not ruptured during the Holocene, in contrast to the NYF and UF. In detail, surface ruptures along the studied section of the SYF occurred during three different time periods, as inferred from stratigraphy and radiocarbon dating: 74 to 49 ka at two sites, 39 to 35 ka at another site, and 28,000 cal yr BP (or 30 ka considering the OSL age) to 16 ka at all sites. These results suggest two alternative rupture scenarios for the timing of paleoearthquakes along the studied fault section during the Late Pleistocene: (1) full rupture along the entire studied section during each earthquake event, or (2) multiple partial ruptures along the two structurally distinguishable parts of the studied fault section, that is, the Wolsan–Miho and Inbo north–Inbo sections. We conclude that geometric discontinuities of the long-lived YF system in the Korean Peninsula intraplate region have played an important role in controlling recent spatiotemporal rupture behavior. 
PY 2023
PD MAY
SO Tectonophysics
SN 0040-1951
PU Elsevier BV
VL 854
UT 000976409000001
DI 10.1016/j.tecto.2023.229817
ID 94151
ER

EF