scholarly journals Structure, texture, and physical properties of accretionary prism sediments and fluid flow near the splay fault zone in the Nankai Trough, off Kii Peninsula

2010 ◽  
Vol 116 (12) ◽  
pp. 637-660 ◽  
Author(s):  
Ryo Anma ◽  
Yujiro Ogawa ◽  
Kiichiro Kawamura ◽  
Gregory Moore ◽  
Tomoyuki Sasaki ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Physical Properties ◽  
Fault Zone ◽  
Nankai Trough ◽  
Accretionary Prism ◽  
Kii Peninsula ◽  
Splay Fault

Deformation and Fluid Flow Processes in the Nankai Trough Accretionary Prism

2000 ◽  
Author(s):  
G.F. Moore ◽  
A. Taira ◽  
J. Baldauf ◽  
A. Klaus
Keyword(s):  
Fluid Flow ◽  
Nankai Trough ◽  
Accretionary Prism ◽  
Flow Processes

Limitation of fluid flow at the Nankai Trough megasplay fault zone

2013 ◽  
Vol 33 (5) ◽  
pp. 405-418 ◽  
Author(s):  
Sebastian B. Hammerschmidt ◽  
Earl E. Davis ◽  
Andre Hüpers ◽  
Achim Kopf
Keyword(s):  
Fluid Flow ◽  
Fault Zone ◽  
Nankai Trough

scholarly journals New insights into deformation and fluid flow processes in the Nankai Trough accretionary prism: Results of Ocean Drilling Program Leg 190

2001 ◽  
Vol 2 (10) ◽  
pp. n/a-n/a ◽  
Author(s):  
Gregory F. Moore ◽  
Asahiko Taira ◽  
Adam Klaus ◽  
Luann Becker ◽  
Babette Boeckel ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Nankai Trough ◽  
Accretionary Prism ◽  
Ocean Drilling Program ◽  
Ocean Drilling ◽  
Flow Processes

The use of geophysical prospecting for imaging active faults in the Roer Graben, Belgium

Geophysics ◽  
2001 ◽  
Vol 66 (1) ◽  
pp. 78-89 ◽  
Author(s):  
Donat Demanet ◽  
François Renardy ◽  
Kris Vanneste ◽  
Denis Jongmans ◽  
Thierry Camelbeeck ◽  
...  
Keyword(s):  
High Resolution ◽  
Physical Properties ◽  
Fault Zone ◽  
Geophysical Methods ◽  
Depth Range ◽  
Electrical Tomography ◽  
Reflection Seismic ◽  
Refraction Seismic ◽  
Geophysical Surveys ◽  
Geophysical Techniques

As part of a paleoseismological investigation along the Bree fault scarp (western border of the Roer Graben), various geophysical methods [electrical profiling, electromagnetic (EM) profiling, refraction seismic tests, electrical tomography, ground‐penetrating radar (GPR), and high‐resolution reflection seismic profiles] were used to locate and image an active fault zone in a depth range between a few decimeters to a few tens of meters. These geophysical investigations, in parallel with geomorphological and geological analyses, helped in the decision to locate trench excavations exposing the fault surfaces. The results could then be checked with the observations in four trenches excavated across the scarp. Geophysical methods pointed out anomalies at all sites of the fault position. The contrast of physical properties (electrical resistivity and permittivity, seismic velocity) observed between the two fault blocks is a result of a differences in the lithology of the juxtaposed soil layers and of a change in the water table depth across the fault. Extremely fast techniques like electrical and EM profiling or seismic refraction profiles localized the fault position within an accuracy of a few meters. In a second step, more detailed methods (electrical tomography and GPR) more precisely imaged the fault zone and revealed some structures that were observed in the trenches. Finally, one high‐resolution reflection seismic profile imaged the displacement of the fault at depths as large as 120 m and filled the gap between classical seismic reflection profiles and the shallow geophysical techniques. Like all geophysical surveys, the quality of the data is strongly dependent on the geologic environment and on the contrast of the physical properties between the juxtaposed formations. The combined use of various geophysical techniques is thus recommended for fault mapping, particularly for a preliminary investigation when the geological context is poorly defined.

Physical properties and sedimentological features of hydrate-bearing samples recovered from the first gas hydrate production test site on Daini-Atsumi Knoll around eastern Nankai Trough

2015 ◽  
Vol 66 ◽  
pp. 346-357 ◽  
Author(s):  
Kiyofumi Suzuki ◽  
Peter Schultheiss ◽  
Yoshihiro Nakatsuka ◽  
Takuma Ito ◽  
Kosuke Egawa ◽  
...  
Keyword(s):  
Physical Properties ◽  
Gas Hydrate ◽  
Nankai Trough ◽  
Test Site ◽  
Production Test
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