• Title/Summary/Keyword: 도미

Search Result 129, Processing Time 0.027 seconds

Optimal Determination of Marine Seismic Data Processing Parameter for Domi-Sediment Basin (도미퇴적분지 해양탄성파 탐사자료 최적 전산처리 변수도출)

  • Cheong, Snons;Kim, Won-Sik;Koo, Nam-Hyung;Yoo, Dong-Geun;Lee, Ho-Young;Shin, Won-Chul;Park, Keun-Pil
    • Geophysics and Geophysical Exploration
    • /
    • v.11 no.4
    • /
    • pp.279-285
    • /
    • 2008

  • Korea Institute of Geoscience & Mineral Resources (KIGAM) carried out 2 dimensional multi-channel seismic surveys for Domi-Basin of east-southern part of Jeju Island, South Sea, Korea in 2007. The purpose of this survey is to investigate the structure of acoustic basement and the potential of energy resources in the Korean shelf. It is essential to produce fine stack and migration section to understand the structure of basement. However a basement can not be clearly defined where multiples exist between sea surface and seafloor. This study aimed at designing the optimal data processing parameter, especially to eliminate the peg-leg multiples. Main data processing procedure is composed of minimum phase predictive deconvolution, velocity analysis and Radon filter. We tested the efficiency of processing parameter from stack sections of each step. Our results confirmed that processing parameters are suitable for the seismic data of Domi-Basin.

  • PDF KSCI

Seismic Stratigraphy and Structural Evolution in Domi Basin, South Sea of Korea (남해 대륙붕 도미분지의 탄성파총서와 구조운동)

  • Kim, Eun-Jung;Oh, Jin-Yong;Chang, Tae-Woo;Yun, Hye-Su;Yu, In-Chang
    • The Korean Journal of Petroleum Geology
    • /
    • v.14 no.1
    • /
    • pp.53-62
    • /
    • 2008

  • Seismic interpretation was carried out based on biostratigraphy of Fukue-1 well in Japan side of the Domi Basin and compared with the Cheju Basin and Tertiary basins in north-west Kyushu. East China Sea Basin including Domi Basin began to develope in the latest Cretaceous$\sim$Paleocene related to rifting. The basin was filled with a thick package of syn-rift sediments during Paleocene to Oligocene and was under post-rift stage effected by transtenssion during Miocene. Previous studies suggest that the basin had been mostly filled with Miocene formation (>3 km), but the Miocene formation is interpreted to be comparatively thin in this study. The thickness of the Miocene formation varies from tens of meters to hundreds of meters and become thicker to the south-west of Cheju Basin. The index taxa of the Oligocene$\sim$Eocene nannofossils and dinoflagellates found in the Cheju Basin and Tertiary basins in north-west Kyushu also corroborate the result of this study.

  • PDF