Results 31 to 40 of about 123 (98)

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

open access: yesGeochemistry, 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   +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

open access: yesGeofluids, 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   +16 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 348: NanTroSEIZE Stage 3: NanTroSEIZE Plate Boundary Deep Riser 3

open access: yes, 2015
The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is a multidisciplinary investigation of fault mechanics and seismogenesis along subduction megathrusts and includes reflection and refraction seismic imaging, direct sampling by drilling, in situ measurements, and long-term monitoring in conjunction with laboratory and numerical modeling ...
Tobin, Harold   +35 more
openaire   +2 more sources

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

open access: yesEarth 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   +6 more
wiley   +1 more source

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

open access: yesGeochemistry, 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   +2 more
wiley   +1 more source

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

open access: yesGeochemistry, 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   +6 more
wiley   +1 more source

Geometrical dependence on the stress and slip tendency acting on the subduction megathrust of the Nankai seismogenic zone off Kumano

open access: yesProgress in Earth and Planetary Science, 2019
We assess the dependence of megathrust geometry near the updip edge of the Nankai seismogenic zone according to the slip tendency of the megathrust based on a reprocessed 3D PSDM seismic volume image and International Ocean Discovery Program (IODP ...
Masataka Kinoshita   +4 more
doaj   +1 more source

The IODP Nankai Trough Seismogenic Zone Experiment [PDF]

open access: yesScientific Drilling, 2007
Masataka Kinoshita, Harold Tobin
doaj   +1 more source

On the Application of 1 Versus 2 State Variable Rate‐and‐State Friction Laws: An Example From the Nankai Trough Megasplay Fault Zone

open access: yesGeophysical Research Letters
Frictional slip behavior in fault zones can be analyzed with friction laws using 1 or 2 state variables, but the physical meaning and applicability of the 2‐state variable form of the law remain unclear.
Matt J. Ikari, Alexander Roesner
doaj   +1 more source

Décollement geometry controls on shallow very low frequency earthquakes. [PDF]

open access: yesSci Rep, 2022
Hashimoto Y   +8 more
europepmc   +1 more source

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