Results 41 to 50 of about 608 (138)

State of Stress Across Major Faults in the Nankai Subduction Zone Estimated From Wellbore Breakouts

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.
Abstract Quantifying the orientation and magnitude of stress at tectonically active margins and along major fault systems is integral to understanding the mechanics of faulting and earthquakes. Here we use data collected as part of the IODP (Integrated Ocean Drilling Program) Nankai Trough Seismogenic Zone Experiment to constrain in situ stress ...
Kaitlin E. Schaible, Demian M. Saffer
wiley   +1 more source

Thermal Conductivity Profile in the Nankai Accretionary Prism at IODP NanTroSEIZE Site C0002: Estimations From High‐Pressure Experiments Using Input Site Sediments

Geochemistry, Geophysics, Geosystems, 2020
Depth profiles of sediment thermal conductivity are required for understanding the thermal structure in active seismogenic zones. During the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), a scientific drilling project of the International Ocean
Weiren Lin, Takehiro Hirose, Osamu Tadai, Wataru Tanikawa, Kazuya Ishitsuka, Xiaoqiu Yang   +5 more
doaj   +1 more source

Subsurface Gaseous Hydrocarbons and Carbon Dioxide Recorded During the Trans‐Amazon Drilling Project (TADP) in the Acre Basin, Western Amazon

Geofluids, Volume 2025, Issue 1, 2025.
The Trans‐Amazon Drilling Project (TADP) drilled a sequence of claystones, siltstones, and sandstones in the Acre sedimentary basin, reaching a final depth of 923 m. This study characterizes the occurrence and compositional variation of light gaseous hydrocarbons detected using the online gas analysis (OLGA) monitoring system deployed during drilling ...
Angela Ethelis Jimenez Martinez, André Oliveira Sawakuchi, Dailson José Bertassoli Júnior, Thomas Wiersberg, Siu Mui Tsai, Kleiton Rabelo de Araújo, Larissa Natsumi Tamura, Marcos Bolognini Barbosa, Tácio Cordeiro Bicudo, Alderlene Pimentel de Brito, Ingo Daniel Wahnfried, Isaac Salém Azevedo Bezerra, Anders Noren, Cleverson Guizan Silva, Sherilyn Fritz, Paul Baker, Fausto Grassa   +16 more
wiley   +1 more source

Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra [PDF]

, 2017
Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size.
Abby R. Kenigsberg, Andre Hüpers, Bjorlykke, Brandon Dugan, Brian M. House, Farid Chemale, Freya L. Mitchison, Gilles Guèrin, Hideki Mukoyoshi, Hugo F. A. Pouderoux, Insun Song, Jan Backman, Katerina E. Petronotis, Kevin T. Pickering, Kitty L. Milliken, Lisa C. McNeill, Manheim, Mari Hamahashi, Marina C. G. Frederik, Marta E. Torres, Mebae Kuranaga, Nisha Nair, Paola Vannucchi, Peter J. Vrolijk, Sarah Kachovich, Satoko Owari, Steffen Kutterolf, Sylvain Bourlange, Tamara N. Jeppson, Tao Yang, Timothy J. Henstock, Tobias A. Colson, Vacquier, Wenhuang Chen, Xixi Zhao, Yehua Shan   +35 more
core   +5 more sources

The Self‐Calibrating Tilt Accelerometer: A Method for Observing Tilt and Correcting Drift With a Triaxial Accelerometer

Earth and Space Science, Volume 11, Issue 11, November 2024.
Abstract We present observations from two field deployments of a calibrated tiltmeter that we name the Self‐Calibrating Tilt Accelerometer (SCTA). The tiltmeter is based upon a triaxial quartz crystal accelerometer; the horizontal channels measure tilt and are periodically rotated into the vertical to obtain a measurement of the acceleration of gravity.
E. K. Fredrickson, W. S. D. Wilcock, M. J. Harrington, G. Cram, J. Tilley, D. Martin, J. Burnett   +6 more
wiley   +1 more source

In situ thermal excursions detected in the Nankai Trough forearc slope sediment at IODP NanTroSEIZE Site C0008 [PDF]

Earth, Planets and Space, 2015
At Integrated Ocean Drilling Program (IODP) Site C0008 in the Nankai Trough slope sediment, we discovered in situ temperature anomalies at 80 to 160 m below the seafloor, where pore fluid Cl and δ 18O excursions were identified and interpreted as pore fluid refreshing due to hydrate dissociation.
Kinoshita, Masataka, Fukase, Hiroaki, Goto, Shusaku, Toki, Tomohiro   +3 more
openaire   +1 more source

Acoustic and mechanical properties of Nankai accretionary prism core samples [PDF]

, 2011
International audienceWe studied undeformed sediment and accreted strata recently recovered by Ocean Drilling Program/Integrated Ocean Drilling Program (ODP/IODP) drilling in Nankai Trough convergent margin to unravel the changes in physical properties ...
Achim Kopf, Athy, Bachman, Bangs, Bangs, Bangs, Best, Bourlange, Brace, Brace, Bray, Brown, Brückmann, Brückmann, Burland, Byrne, Casagrande, Conin, Dvorkin, Dvorkin, Erickson, Expedition 314 Scientists, Expedition 315 Scientists, Expedition 315 Scientists, Expedition 315 Scientists, Expedition 316 Scientists, Expedition 316 Scientists, Feeser, Fofonoff, Gassmann, Gettemy, Goldberg, Gorgas, Hamilton, Hamilton, Hamilton, Hamilton, Hoffman, Hugues Raimbourg, Hyndman, Johns, Karig, Karig, Karig, Karig, Kibblewhite, Knauss, Lee, Leroueil, Masataka Kinoshita, Mavko, Moore, Moore, Moore, Moran, Morgan, Nur, Park, Robb, Saffer, Saffer, Saffer, Saffer, Saneatsu Saito, Screaton, Shipboard Scientific Party, Shipboard Scientific Party, Shipboard Scientific Party, Silva, Spinelli, Steurer, Sunderland, Taira, Tobin, Tobin, Tobin, Tobin, Ujiie, Underwood, Urmos, Vernik, Vrolijk, Wetzel, Wetzel, Wilkens, Wood, Yozo Hamano   +86 more
core   +3 more sources

Sediment Provenance Along the Middle Miocene‐Pleistocene Nankai Subduction Zone From Sediment Transport to Accretion: Implications for Stratigraphy in the Accretionary Prism

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 8, August 2024.
Abstract Based on U‐Pb dating of zircon crystals and petrographic analysis, this study provides new insights into the paleogeographic and accretion evolution along SW Japan. Our data are consistent with an older submarine fan identified from drilling in the Shikoku Basin (Kyushu Fan ∼14.7–12.2 Ma), having a mixed sand provenance from the paleo‐Yangtze ...
P. H. Cornard, H. L. Dawson, K. T. Pickering   +2 more
wiley   +1 more source

Horizontal principal stress orientation in the Costa Rica Seismogenesis Project (CRISP) transect from borehole breakouts [PDF]

, 2016
The Costa Rica Seismogenesis Project (CRISP) drilled the Pacific margin of the Middle America Trench just north of where the Cocos Ridge enters the subduction zone, resulting in basal erosion of the upper plate.
A. Malinverno, Arroyo, Arroyo, Bangs, Bell, Bell, Chang, Chib, Clift, Ekstrom, Gardner, Heidbach, Kluesner, Kobayashi, LaFemina, Lin, Malinverno, Metropolis, P. Vannucchi, Plumb, S. Saito, Sambridge, Sen, Tobin, Vannucchi, Vannucchi, von Huene, Walther, Wang, Wang, Wang, Wessel, Yassir, Zemanek, Zoback, Zoback   +35 more
core   +1 more source

Frontal Thrust Ramp‐Up and Slow Earthquakes Due To Underthrusting of Basement High in the Nankai Trough

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 7, July 2024.
Abstract Recently, integrated geophysical‐geological surveys in the Nankai subduction zone in Japan have revealed that slow earthquakes repeatedly occur beneath the outer wedge of the forearc. During December 2020 to February 2021, clustered slow earthquakes propagated around the frontal thrust of the accretionary wedge.
G. Kimura, K. Shiraishi, Y. Nakamura, S. Kodaira, G. Fujie, R. Arai, G. F. Moore   +6 more
wiley   +1 more source