back-arc basin


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back-arc basin

[′bak‚ärk ‚bās·ən]
(geology)
The region (small ocean basin) between an island arc and the continental mainland formed during oceanic plate subduction, containing sediment eroded from both.
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Morphological and anatomical studies on a new lepetodrilacean limpet (Gastropoda, Prosobranchia) from hydrothermal vents at the Manus Back-Arc Basin (Bismarck Sea, Papua New Guinea).
gather together 10 papers and three case studies that study the geological, biological, chemical, and physical interactions that occur along back-arc basin spreading centers.
Kirsten McLaughlin, Sandra Barr and co-workers detail the age, chemistry, and tectonic setting of the Moosehorn plutonic suite, a diverse assemblage of co-magmatic plutons, which likely originated in an extensional, back-arc basin environment.
The property is hosted in a felsic-siliciclastic rock sequence indicating a volcanic back-arc basin environment of deposition.
Fiji Back-Arc 16[degrees]-18[degrees]S, Basin 173[degrees]-179[degrees]W Lau Back-Arc Basin 22[degrees]S, 176[degrees]W Mariana Back-Arc Basin 18[degrees]S, 144[degrees]E Indian Ocean Triple Junction Kairei mussel field 25[degrees]S, 70[degrees]E Southwest Pacific No.
After accretion of the Victoria-Exploits arc, deformation related to closure of the Exploits back-arc basin to the east juxtaposed both sides of the basin along the Dog Bay Line (Fig.
Seafloor spreading in the resulting back-arc basin separates an inactive (remnant) arc from the active arc and its deep mantle source.
Nonetheless, all of the blocks and slivers are tectonically related and represent widely separated ensialic to ensimatic portions of the west-facing Popelogan arc/Tetagouche--Exploits back-arc basin system which were structurally juxtaposed during Ashgill-Ludlow back-arc basin closure.
The Tamarugal Basin is thought to be a thermally mature Jurassic back-arc basin, comprised of thick sequences of source rock, along with potential reservoir beds in the form of sandstone and limestone.
Pitman II Editors), Island arcs, deep sea trenches and back-arc basins.
These vulnerable areas are known as back-arc basins (SN: 6/10/06, p.