Geology and Tectonics of Subduction Zones: A Tribute to Gaku Kimura
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Facies architecture, detrital provenance, and tectonic modulation of sedimentation in the Shikoku Basin: Inputs to the Nankai Trough subduction zone
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Published:August 15, 2018
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CiteCitation
Michael B. Underwood, Kevin T. Pickering, 2018. "Facies architecture, detrital provenance, and tectonic modulation of sedimentation in the Shikoku Basin: Inputs to the Nankai Trough subduction zone", Geology and Tectonics of Subduction Zones: A Tribute to Gaku Kimura, Timothy Byrne, Michael B. Underwood, III, Donald Fisher, Lisa McNeill, Demian Saffer, Kohtaro Ujiie, Asuka Yamaguchi
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ABSTRACT
The Shikoku Basin is a back-arc basin located offshore southwest Japan. Sediments within the basin make up a key part of the subduction inputs to the Nankai Trough. A 19 m.y. history of sedimentation has been documented at Sites C0011 and C0012 of the Integrated Ocean Drilling Program (Kumano transect) and Sites 1173 and 1177 of the Ocean Drilling Program (Muroto and Ashizuri transects, respectively). This paper focuses on three noteworthy aspects of that history: (1) the onset of substantial pyroclastic influx, which shifted significantly along the strike length of the margin, from 3.3–3.9 Ma at Sites 1177 and...
- Asia
- back-arc basins
- basins
- Cenozoic
- clastic rocks
- clastic sediments
- clay minerals
- detrital sedimentation
- facies
- Far East
- gravity flows
- hemipelagic environment
- igneous rocks
- Integrated Ocean Drilling Program
- IODP Site C0011
- IODP Site C0012
- Japan
- Japan Trench
- Kyushu
- Leg 190
- lithofacies
- marine environment
- Miocene
- mudstone
- Nankai Trough
- NanTroSEIZE
- Neogene
- North Pacific
- Northwest Pacific
- Ocean Drilling Program
- ODP Site 1173
- ODP Site 1177
- Pacific Ocean
- pelagic environment
- permeability
- plate tectonics
- plates
- pyroclastics
- sand
- sedimentary rocks
- sedimentation
- sediments
- sheet silicates
- Shikoku Basin
- silicates
- smectite
- subduction
- subduction zones
- submarine fans
- tectonics
- Tertiary
- volcanic rocks
- West Pacific
- Daiichi Zenisu Fan