scholarly journals Amplitude modeling of the seismic reflectors in the crust-mantle transition layer beneath the volcanic front along the northern Izu-Bonin island arc

2009 ◽  
Vol 10 (2) ◽  
pp. n/a-n/a ◽  
Author(s):  
Takeshi Sato ◽  
Shuichi Kodaira ◽  
Narumi Takahashi ◽  
Yoshiyuki Tatsumi ◽  
Yoshiyuki Kaneda
Keyword(s):  
Transition Layer ◽  
Island Arc ◽  
Volcanic Front ◽  
Bonin Island ◽  
Seismic Reflectors

scholarly journals Evolution of Oceanic Island Arc-Geology of the Izu-Bonin island and approach from the samples and data of the ODP Leg 126-

1991 ◽  
Vol 100 (5) ◽  
pp. 788-807
Author(s):  
Kantaro FUJIOKA ◽  
Akira NISHIMURA ◽  
Masato KOYAMA ◽  
Ritsuo NOMURA ◽  
Junji ITOIGAWA ◽  
...  
Keyword(s):  
Oceanic Island ◽  
Island Arc ◽  
Bonin Island

Back-arc rifting in the Izu-Bonin Island Arc: Structural evolution of Hachijo and Aoga Shima Rifts

Island Arc ◽  
1992 ◽  
Vol 1 (1) ◽  
pp. 16-31 ◽  
Author(s):  
Adam Klaus ◽  
Brian Taylor ◽  
Gregory F. Moore ◽  
Fumitoshi Murakami ◽  
Yukinobu Okamura
Keyword(s):  
Structural Evolution ◽  
Island Arc ◽  
Bonin Island ◽  
Back Arc

Triassic sponges (Sphinctozoa) from Hells Canyon, Oregon

1988 ◽  
Vol 62 (03) ◽  
pp. 419-423 ◽  
Author(s):  
Baba Senowbari-Daryan ◽  
George D. Stanley
Keyword(s):  
Endemic Species ◽  
Upper Triassic ◽  
Island Arc ◽  
Tropical Island ◽  
The Family ◽  
Wallowa Terrane ◽  
Unique Condition ◽  
Hells Canyon

Two Upper Triassic sphinctozoan sponges of the family Sebargasiidae were recovered from silicified residues collected in Hells Canyon, Oregon. These sponges areAmblysiphonellacf.A. steinmanni(Haas), known from the Tethys region, andColospongia whalenin. sp., an endemic species. The latter sponge was placed in the superfamily Porata by Seilacher (1962). The presence of well-preserved cribrate plates in this sponge, in addition to pores of the chamber walls, is a unique condition never before reported in any porate sphinctozoans. Aporate counterparts known primarily from the Triassic Alps have similar cribrate plates but lack the pores in the chamber walls. The sponges from Hells Canyon are associated with abundant bivalves and corals of marked Tethyan affinities and come from a displaced terrane known as the Wallowa Terrane. It was a tropical island arc, suspected to have paleogeographic relationships with Wrangellia; however, these sponges have not yet been found in any other Cordilleran terrane.

Volcanoes of the southwestern extension of the active Mariana island arc: New swath-mapping and geochemical studies

Island Arc ◽  
1998 ◽  
Vol 7 (3) ◽  
pp. 596-607
Author(s):  
F RYER ◽  
S UJIMOTO ◽  
S EKINE ◽  
J OHNSON ◽  
K ASAHARA ◽  
...  
Keyword(s):  
Island Arc ◽  
Swath Mapping ◽  
Geochemical Studies ◽  
Mariana Island Arc
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