A Geoacoustic Model at the SSDP-101 Long-core Site in the Korea Strait

서지정보

ㆍ발행기관 : 한국지구과학회 ㆍ수록지정보 : 한국지구과학회지 / 44권 / 4호
ㆍ저자명 : Woo-Hun Ryang, Seong-Pil Kim

목차

Introduction
Regional Marine Geology
Materials and Methods
Results
Seismic and sediment data
Physical and geoacoustic property
Geoacoustic Model
Conclusions
Acknowledgments

영어 초록

The Korea Strait comprises a continental shelf in a shallow sea that experienced glacio-eustastic sea-level changes during the Quaternary period. A long core of 76.6 m in length was acquired at the South Sea Drilling Project site (SSDP-101; 34o19.666′E and 128o16.335′N) with a 60 m water deep. The uppermost massive sand beds were interpreted as sandy sediments of the nearshore marine sand ridge in the shallow sea during the transgression of sea level, whereas the lower parts of alternating sandy and muddy beds were interpreted as deposits in marsh, estuary, and tidal flat environments. A three-layered geoacoustic model was reconstructed for the sedimentary succession in the high-resolution seismic profile based on a 140-grain size and sediment type of core SSDP-101. For the actual underwater simulation and experiments, the in-situ P-wave speeds were calculated using the sound speed ratio of the Hamilton method.

참고 자료

없음