Harold J. Tobin

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Drilling on Ocean Drilling Program (ODP) Leg 170, offshore Costa Rica indicates that the entire incoming sedimentary section is underthrust. Thus, observed changes in the thickness of underthrust sediments as they are progressively buried beneath the margin wedge provide a direct measure of the rate and magnitude of sediment dewatering. Laboratory(More)
Megasplay faults, very long thrust faults that rise from the subduction plate boundary megathrust and intersect the sea floor at the landward edge of the accretionary prism, are thought to play a role in tsunami genesis. We imaged a megasplay thrust system along the Nankai Trough in three dimensions, which allowed us to map the splay fault geometry and its(More)
Weiren Lin, Mai‐Linh Doan, J. Casey Moore, Lisa McNeill, Timothy B. Byrne, Takatoshi Ito, Demian Saffer, Marianne Conin, Masataka Kinoshita, Yoshinori Sanada, Kyaw Thu Moe, Eiichiro Araki, Harold Tobin, David Boutt, Yasuyuki Kano, Nicholas W. Hayman, Peter Flemings, Gary J. Huftile, Deniz Cukur, Christophe Buret, Anja M. Schleicher, Natalia Efimenko, Kuniyo(More)
The continued dominance of tuberculosis as a cause of morbidity and mortality (1) has fueled the search for more rapid and reliable means of diagnosis. Numerous systems have now been described for the amplification and detection of DNA or rRNA sequences that are specific for the Mycobacterium tuberculosis complex (2-7). While useful in reducing the amount(More)
Land mines are a major problem in many areas of the world. In spite of the fact that many different types of land mines sensors have been developed, the detection of non-metallic land mines remains very difficult. Most landmine detection sensors are affected by soil properties such as water content, temperature, electrical conductivity and dielectric(More)
Ultrasonic wave transmission has been used to investigate processes that influence frictional strength, strain localization, fabric development, porosity evolution, and friction constitutive properties in granular materials under a wide range of conditions. We present results from a novel technique using ultrasonic wave propagation to observe the evolution(More)
The interrelation between deformation styles and behavior of fluids in accretionary prisms is under debate, particularly the possibility that overpressuring within the basal decollement may enable mechanical decoupling of the prism from the subducting material. Anisotropy of magnetic susceptibility (AMS) data from sediments spanning the basal decollement of(More)
[1] In this study, we used porosity to assess the compaction state of the Nankai accretionary wedge sediments and any implications for stress and pore pressure. However, hydrous minerals affect porosity measurements, and accounting for them is essential toward defining the interstitial porosity truly representative of the compaction state. The water content(More)