Multibeam echo sounder, deep-towed sidescan sonar and sub-bottom profiler surveys are carried out... more Multibeam echo sounder, deep-towed sidescan sonar and sub-bottom profiler surveys are carried out in the near shore area off SW Taiwan. Thirteen mud volcanoes are recognized by using multibeam bathymetry. The high-resolution sub-bottom profiler data show the existence of more than one hundred gas seeps and one pockmark distributed in the study area. These mud volcanoes are situated at the summit of mud diapiric structures identified by multichannel seismic reflection (MCS) profiles. It indicates that the growth of mud volcano is closely related to mud diapiric structure. The fluid source of mud volcanoes come from the diapiric structure and fluid migrates upward along fractures to the seafloor. For the first time, ROV survey for mud volcano observation is applied in the near shore area off SW Taiwan in 2011. The results of ROV observation reveal three active mud volcanoes with eruption from seafloor. The eruption cycle of mud volcanoes MV1 and MV5 are about every 3~5 minutes, and MV...
Eos, Transactions American Geophysical Union, 1997
A joint French‐Taiwanese cruise in May and June 1996 on the French research vessel L'Atalante... more A joint French‐Taiwanese cruise in May and June 1996 on the French research vessel L'Atalante has provided detailed structural images of the sea floor east and southwest of Taiwan. High quality swath bathymetry (see Figure 1) and seismic reflection profiles collected in southeastern and southwestern offshore areas near Taiwan will increase our understanding of how the Luzon Arc is deformed by its collision with the Chinese passive margin and how the Manila Trench connects with the deformation front on Taiwan. The data collected off the eastern coast of Taiwan will elucidate the nature of the plate boundary between the Ryukyu subduction zone and the Taiwan mountain belt and reveal the mode of back arc opening in the Southern Okinawa Trough. The investigations will contribute to understanding the processes of accretion of an arc to a continent prior to the ultimate collision between continents.
The Philippine Sea Plate overrides the Eurasian Plate along the east-dipping Manila Trench betwee... more The Philippine Sea Plate overrides the Eurasian Plate along the east-dipping Manila Trench between Taiwan and Luzon islands. From south to north, the plate convergence gradually evolves from normal subduction of the South China Sea (SCS) lithosphere to initial collision of the Taiwan orogen. In order to better understand the deep crustal structures in this region, 11 multi-channel seismic reflection profiles were collected during R/V G. Langseth cruises MGL0905 and MGL0908 from April to July, 2009. The results show that large volume of sediments has accumulated in the northern Manila Trench and the oceanic crusts as thick as 10 km. Normal faults have widely distributed in the trench area due to the bending of subducting plate. The SCS basement generally deepens to the Luzon arc. Several seamounts intruded and extruded onto the volcanic SCS basement and lead to rough reliefs of the SCS basement. The rough-relief SCS basement has affected the deformation of decollement and sedimentary...
Multibeam echo sounder, deep-towed sidescan sonar and sub-bottom profiler surveys are carried out... more Multibeam echo sounder, deep-towed sidescan sonar and sub-bottom profiler surveys are carried out in the near shore area off SW Taiwan. Thirteen mud volcanoes are recognized by using multibeam bathymetry. The high-resolution sub-bottom profiler data show the existence of more than one hundred gas seeps and one pockmark distributed in the study area. These mud volcanoes are situated at the summit of mud diapiric structures identified by multichannel seismic reflection (MCS) profiles. It indicates that the growth of mud volcano is closely related to mud diapiric structure. The fluid source of mud volcanoes come from the diapiric structure and fluid migrates upward along fractures to the seafloor. For the first time, ROV survey for mud volcano observation is applied in the near shore area off SW Taiwan in 2011. The results of ROV observation reveal three active mud volcanoes with eruption from seafloor. The eruption cycle of mud volcanoes MV1 and MV5 are about every 3~5 minutes, and MV...
Eos, Transactions American Geophysical Union, 1997
A joint French‐Taiwanese cruise in May and June 1996 on the French research vessel L'Atalante... more A joint French‐Taiwanese cruise in May and June 1996 on the French research vessel L'Atalante has provided detailed structural images of the sea floor east and southwest of Taiwan. High quality swath bathymetry (see Figure 1) and seismic reflection profiles collected in southeastern and southwestern offshore areas near Taiwan will increase our understanding of how the Luzon Arc is deformed by its collision with the Chinese passive margin and how the Manila Trench connects with the deformation front on Taiwan. The data collected off the eastern coast of Taiwan will elucidate the nature of the plate boundary between the Ryukyu subduction zone and the Taiwan mountain belt and reveal the mode of back arc opening in the Southern Okinawa Trough. The investigations will contribute to understanding the processes of accretion of an arc to a continent prior to the ultimate collision between continents.
The Philippine Sea Plate overrides the Eurasian Plate along the east-dipping Manila Trench betwee... more The Philippine Sea Plate overrides the Eurasian Plate along the east-dipping Manila Trench between Taiwan and Luzon islands. From south to north, the plate convergence gradually evolves from normal subduction of the South China Sea (SCS) lithosphere to initial collision of the Taiwan orogen. In order to better understand the deep crustal structures in this region, 11 multi-channel seismic reflection profiles were collected during R/V G. Langseth cruises MGL0905 and MGL0908 from April to July, 2009. The results show that large volume of sediments has accumulated in the northern Manila Trench and the oceanic crusts as thick as 10 km. Normal faults have widely distributed in the trench area due to the bending of subducting plate. The SCS basement generally deepens to the Luzon arc. Several seamounts intruded and extruded onto the volcanic SCS basement and lead to rough reliefs of the SCS basement. The rough-relief SCS basement has affected the deformation of decollement and sedimentary...
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