Results 21 to 30 of about 217 (124)

Automated gas bubble imaging at sea floor – a new method of in situ gas flux quantification [PDF]

Ocean Science, 2010
Photo-optical systems are common in marine sciences and have been extensively used in coastal and deep-sea research. However, due to technical limitations in the past photo images had to be processed manually or semi-automatically.
G. Bohrmann, H. Sahling, O. Zielinski, K. Thomanek   +3 more
doaj   +1 more source

Off‐Fault Deformation in Regions of Complex Fault Geometries: The 2013, Mw7.7, Baluchistan Rupture (Pakistan)

Journal of Geophysical Research: Solid Earth, Volume 127, Issue 11, November 2022., 2022
Abstract Observations of recent earthquake surface ruptures show that ground deformations include a localized component occurring on faults, and an off‐fault component affecting the surrounding medium. This second component is also referred to as off‐fault deformation (OFD).
S. L. Antoine, Y. Klinger, A. Delorme, R. D. Gold   +3 more
wiley   +1 more source

Identification of Gas Accumulation Adjacent to the Gas Hydrate Bearing Zone by Inversion Utilizing AVO Attribute [PDF]

Journal of Petroleum Science and Technology, 2018
The presence of gas hydrate and associated gas in the Makran Accretionary Prism, offshore Iran, has been confirmed by various seismic indicators, including the bottom-simulating reflector (BSR), amplitude blanking, and bright spot. The pre-stack analysis
Effat Behboudi, Nasser Keshavarz, Asghar Naderi   +2 more
doaj   +1 more source

Review of Geochronologic and Geochemical Data of the Greater Antilles Volcanic Arc and Implications for the Evolution of Oceanic Arcs

Geochemistry, Geophysics, Geosystems, Volume 23, Issue 4, April 2022., 2022
Abstract The Greater Antilles islands of Cuba, Hispaniola, Puerto Rico and Jamaica plus the Virgin Islands host fragments of the fossil convergent margin that records Cretaceous subduction (operated for about 90 m.y.) of the American plates beneath the Caribbean plate and ensuing arc‐continent collision in Late Cretaceous‐Eocene time.
H. Y. Hu, R. J. Stern, Y. Rojas‐Agramonte, A. Garcia‐Casco   +3 more
wiley   +1 more source

Interaction between hydrocarbon seepage, chemosynthetic communities, and bottom water redox at cold seeps of the Makran accretionary prism: insights from habitat-specific pore water sampling and modeling [PDF]

Biogeosciences, 2012
The interaction between fluid seepage, bottom water redox, and chemosynthetic communities was studied at cold seeps across one of the world's largest oxygen minimum zones (OMZ) located at the Makran convergent continental margin. Push cores were obtained
D. Fischer, H. Sahling, K. Nöthen, G. Bohrmann, M. Zabel, S. Kasten   +5 more
doaj   +1 more source

New Constraints for the On‐Shore Makran Subduction Zone Crustal Structure

Journal of Geophysical Research: Solid Earth, Volume 127, Issue 1, January 2022., 2022
Abstract The Makran Subduction Zone is the primary seismic/tsunami hazard of the northwestern Indian Ocean, but little is known of its on‐shore seismic structure. We derived a shear wave velocity model extending to 100 km depth beneath a ∼400 km‐long seismic profile oriented parallel to the convergence vector of the Arabian Sea Plate. Receiver function/
Keith Priestley, Farhad Sobouti, Rahil Mokhtarzadeh, Mohsen A. Irandoust, Reza Ghods, Khalil Motaghi, Tak Ho   +6 more
wiley   +1 more source

Evolution of the Thermal and Dehydration State of Sediments Entering the North Sumatra Subduction Zone

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 4, April 2021., 2021
Abstract Shallow slip on the plate‐boundary fault during the 2004 Mw 9.2 Aceh‐Andaman Earthquake, offshore North Sumatra, has been linked to thick incoming sediments on the oceanic plate with advanced diagenetic and sediment property changes at the depths of plate boundary fault development.
Duncan E. Stevens, Timothy J. Henstock, Lisa C. McNeill   +2 more
wiley   +1 more source

Crustal Structure of the UAE‐Oman Mountain Range and Arabian Rifted Passive Margin: New Constraints From Active and Passive Seismic Methods

Journal of Geophysical Research: Solid Earth, Volume 126, Issue 4, April 2021., 2021
Abstract The Semail ophiolite, a thick thrust sheet of Late Cretaceous oceanic crust and upper mantle, was obducted onto the previously rifted Arabian continental margin in the Late Cretaceous, and now forms part of the United Arab Emirates (UAE)‐Oman mountain belt.
S. Pilia, M. Y. Ali, M. P. Searle, A. B. Watts, C. Lü, D. A. Thompson   +5 more
wiley   +1 more source

Table1_Characteristics of High Saturation Hydrate Reservoirs in the Low-Angle Subduction Area of the Makran Accretionary Prism.XLSX

, 2022
To delineate the spatial distribution of high saturation gas hydrate reservoirs in the low-angle subduction areas of the Makran Accretionary Prism, we conducted seismic data interpretation and impedance inversion of gas hydrates in the Makran ...
Xinxin Liu (534717), Sen Li (155994), Weihan Yin (12458751), Baohua Lei (12458754), Waseem Haider Syed (12458757), Khalid Muhammad (5369831), Jing Liao (193197), Qingfang Zhao (12458745), Jianming Gong (12458748), Jie Liang (37016)   +9 more
core   +1 more source

Crustal Deformation and Fault Strength of the Sulawesi Subduction Zone

Tectonics, Volume 40, Issue 3, March 2021., 2021
Abstract This paper investigates the seismicity and rheology of the North‐Sulawesi subduction zone. Body‐wave modeling is used to estimate focal mechanisms and centroid depths of moderate magnitude (M5–M6.5) earthquakes on the North Sulawesi megathrust and surrounding region.
T. Greenfield, A. C. Copley, C. Caplan, P. Supendi, S. Widiyantoro, N. Rawlinson   +5 more
wiley   +1 more source