TY - JOUR
T1 - Simultaneous imaging of BSR for methane hydrate exploration and ocean current fine structures
AU - Ramadlona, Via
AU - How-Wei, Chen
N1 - Publisher Copyright:
© 2014 SEG.
PY - 2014
Y1 - 2014
N2 - Imaging both Bottom Simulating Reflectors (BSRs) and ocean fine structure can be achieved through careful process of long-offset Multi-Channel Seismic (MCS) data. Interpretation and classification on type locality, sedimentation environment and spatial distribution of BSRs with potential methane hydrate production are exploited. Both patchy and continuous distributed BSRs can be identified and may well correspond to different sediment dispersal processes in the frontal and real segment of active accretionary wedge that belongs to active continental margins offshore of SW Taiwan. Our results indicated fluid/gas migration in the active margin may controlled by the tectonic structure control and/or local seismic activity. The image of ocean currents reveals different dynamic processes occurred at different depth. Near-surface current are characterized by continuous, nearly horizontal stratified layers indicate air-sea surface interaction features. More apparent wavy shaped, less continuous with varying in impedance contrast, relative clear top and bottom reflections with low internal amplitude reveal the feature of eddy currents can be identified at the intermediate depth range. Through quantitative analyses, the spatial distribution features of internal waves and others such as eddies, mass movement, turbulence and current mixing are all helpful in promoting our understanding of dynamic ocean processes across different scale constrained by seismic frequency band.
AB - Imaging both Bottom Simulating Reflectors (BSRs) and ocean fine structure can be achieved through careful process of long-offset Multi-Channel Seismic (MCS) data. Interpretation and classification on type locality, sedimentation environment and spatial distribution of BSRs with potential methane hydrate production are exploited. Both patchy and continuous distributed BSRs can be identified and may well correspond to different sediment dispersal processes in the frontal and real segment of active accretionary wedge that belongs to active continental margins offshore of SW Taiwan. Our results indicated fluid/gas migration in the active margin may controlled by the tectonic structure control and/or local seismic activity. The image of ocean currents reveals different dynamic processes occurred at different depth. Near-surface current are characterized by continuous, nearly horizontal stratified layers indicate air-sea surface interaction features. More apparent wavy shaped, less continuous with varying in impedance contrast, relative clear top and bottom reflections with low internal amplitude reveal the feature of eddy currents can be identified at the intermediate depth range. Through quantitative analyses, the spatial distribution features of internal waves and others such as eddies, mass movement, turbulence and current mixing are all helpful in promoting our understanding of dynamic ocean processes across different scale constrained by seismic frequency band.
UR - http://www.scopus.com/inward/record.url?scp=85018384379&partnerID=8YFLogxK
U2 - 10.1190/segam2014-1095.1
DO - 10.1190/segam2014-1095.1
M3 - 會議論文
AN - SCOPUS:85018384379
SN - 1052-3812
VL - 33
SP - 1485
EP - 1490
JO - SEG Technical Program Expanded Abstracts
JF - SEG Technical Program Expanded Abstracts
T2 - SEG Denver 2014 Annual Meeting, SEG 2014
Y2 - 26 October 2011 through 31 October 2011
ER -