scholarly journals Crust and Uppermantle Structure of Island Arc Being Elucidated from Seismic Profiling with Controlled Sources in Japan

2009 ◽  
Vol 61 (Supplement) ◽  
pp. 165-176 ◽  
Author(s):  
Takaya IWASAKI ◽  
Hiroshi SATO
Keyword(s):  
Island Arc ◽  
Seismic Profiling

scholarly journals Wide-angle seismic profiling of oceanic island arc in the southern Izu-Ogasawara arc –KY0502 cruise–

2006 ◽  
Vol 3 (0) ◽  
pp. 43-52 ◽  
Author(s):  
Yuka Kaiho ◽  
Narumi Takahashi ◽  
Takeshi Sato ◽  
Go Fujie ◽  
Shuichi Kodaira ◽  
...  
Keyword(s):  
Oceanic Island ◽  
Island Arc ◽  
Wide Angle ◽  
Seismic Profiling

scholarly journals MCS seismic profiling of an oceanic island arc in the southern Izu-Ogasawara arc-backarc area –KR0607 cruise–

2007 ◽  
Vol 5 (0) ◽  
pp. 51-60 ◽  
Author(s):  
Yuka Kaiho ◽  
Tetsuo No ◽  
Mikiya Yamashita ◽  
Kaoru Takizawa ◽  
Narumi Takahashi ◽  
...  
Keyword(s):  
Oceanic Island ◽  
Island Arc ◽  
Seismic Profiling

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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