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Mariana Trough

Shikazono, N. and Kusakabe, M. (1999) Mineralogical characteristics and formation mechanism of sulfate-sulfide chimneys from Kuroko area, Mariana trough and midocean ridges. Resource Geology Special Issue, 20, 1-12. [Pg.286]

Uyeda, S. (1983) Hydrothermal circulation in the Mariana trough, Kuroko and the mode of subduction. Mining Geology Special Issue, 11, 37-53 (in Japanese with English abst.). [Pg.291]

Central Mariana Trough (18 02 N. 144 "45 E) 3675 Crest of an axial ridge where the relief is greatest (ca. 800 m). A low mound, 20-30 m in diameter. Several active chimneys surrounded by a low mound of hydrotlrernial precipitates. Sphalerite, barite, amorphous silica. [Pg.341]

No. Host Axial Seamount CASM 14 B North Fiji Basin 24 B Mariana Trough at 18 N 11 A Valu Fa, Lou Basin 47 B, A, D Eastern Manus Basin 26 D Jade Okinawa Trough 17 R... [Pg.342]

Site No. Name of site 1 Okinawa Trough JADE 2 Okinawa Trough CLAM 3 Okinawa Trough South Ensei 4 Izu-Bonin Suiyo SM. 5 Mid-Mariana Trough Alice Springs 6 South Mariana Trough Forecast vent 7 Manus Basin Vienna Woods 8 North Fiji Basin 9 Lau Basin Vai Lili... [Pg.344]

S S data on H2S and sulfides from Okinawa Trough (Okinawa Izena) show a high S S value (- -8%o) (Sakai, H. pers. conun cited in Ishibashi andUrabe, 1995). 8 " S values from other districts are similar to those of midoceanic ridges -i-2.1%o to 4-3. l%o, Mariana Trough (Kusakabe et al., 1990) -f0.3%o to -t-2.2%o, Minami Ensei Knoll (Nedachi et al., 1992 4-2.l%o to 4-2.8%o, Kita-Bayonnaise caldera (lizasa et al., 1992) 4-0.9% to 4-1.2% (Kaikita caldera) (vein part) (Ishibashi and Urabe, 1995). S " S values from the Okinawa (Izena) sulfides are higher than any of S S data from midoceanic ridge sulfides and H2S of hydrothermal solutions. [Pg.359]

The characteristic features of chimney-like ores and chimney from Kuroko deposits and Mariana Trough are summarized and mineralogical and geochemical characteristics of Kuroko and Mariana chimneys and those of the midoceanic ridge chimneys are compared below. [Pg.367]

N Axial Seamount CASM 14 N. Fiji Basin 24 Mariana Trough at 18°N 11 Valu Fa, Lau Basin 47 Eastern Manus Basin 26 Jade, Okinawa Trough 17... [Pg.389]

As mentioned already in Chapter 2, submarine volcanism occurs not only at midoceanic ridges but also at subduction-related tectonic settings such as the Shikoku and Daito Basins, Farce Vela Basins, and Mariana Trough, Okinawa Trough and Izu Bonin Arc (e.g.. Wood et al., 1980 Dick, 1982 Delaney and Boyle, 1986). [Pg.407]

Stolper E, Newman S (1994) The role of water in the petrogenesis of Mariana trough magmas.Earth Planet Sci Lett 121 293-325... [Pg.428]

Popp BN, Laws EA, Bidigare RR, Dore JE, Hanson KL, Wakeham SG (1998) Effect of phytoplankton cell geometry on carbon isotope fractionation. Geochim Cosmochim Acta 62 69-77 Poreda R (1985) HeUum-3 and deuterium in back arc basalts Lau Basin and the Mariana trough. Earth Planet Sci Lett 73 244-254... [Pg.264]

Ohara Y., Stem R. J., Ishii T., Yurimoto H., and Yamazaki T. (2002) Peridotites from the Mariana Trough First look at the mantle beneath an active back-arc basin. Contrih. Mineral. Petrol. 143, 1-18. [Pg.867]

Moore W. S. and Stakes D. (1990) Ages of barite-sulfide chimneys from the mariana trough. Earth Planet. Sci. Lett. 100, 265-274. [Pg.1768]

I Okinawa Trough Lau Basin Manus Basin Mariana Trough... [Pg.488]

Mariana Trough is a back-arc spreading center that occurs between a remnant arc and the currently active Mariana arc. On the flanks of axial volcanoes in the central Mariana Trough are several vent fields with measured temperatures up to 287°C and sulfide-sulfate chimneys comprised of sphalerite, galena, and barite, due to metal sources from the underlying andesitic crust. An unusual occurrence in the northeast portion of the Mariana Arc is a serpentinite mud volcano called Conical Seamount. Carbonate (calcite, aragonite) and silicate (Mg silicate) chimneys occur near the mud volcano summit. Associated fluids are cold, sulfate-sulfide-carbonate-silica-rich, and have pHs as high as... [Pg.514]

Mariana Trough. Manus Basin, North Fiji Basin,... [Pg.470]

K. R. and Hey, R.N., 1987. Hydrothermal vents in the Mariana Trough Results of the first Alvin dives. American Geophysical Union Transactions, 68 1531. [Pg.475]

Magellan Seamount 406 Manihiki Plateau 393 Manus Basin 459,470 Mariana Trough 470 Marianas back-arc 459,471 Maud Rise 40... [Pg.574]

See other pages where Mariana Trough is mentioned: [Pg.81]    [Pg.336]    [Pg.341]    [Pg.361]    [Pg.364]    [Pg.415]    [Pg.415]    [Pg.420]    [Pg.308]    [Pg.171]    [Pg.808]    [Pg.987]    [Pg.989]    [Pg.1046]    [Pg.106]    [Pg.286]    [Pg.288]    [Pg.345]    [Pg.355]    [Pg.362]    [Pg.481]    [Pg.458]    [Pg.335]    [Pg.335]    [Pg.336]   
See also in sourсe #XX -- [ Pg.336 , Pg.341 , Pg.342 , Pg.359 , Pg.361 , Pg.364 , Pg.367 , Pg.389 , Pg.407 , Pg.415 , Pg.420 ]



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