georefid:2012-050262SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1111/j.1440-1738.1998.00200.x1998-01-01publicationgeorefid:2012-050262doi:10.1111/j.1440-1738.1998.00200.xSui, A. U.Geological Survey of Japan, Tsukuba, JapanauthorGlasby, G. P.University of Texas at Dallas, United StatesauthorWiley Blackwell on behalf of Geological Society of Japan, Tsukuba, JapanpublisherdocumentHardcopyIn: Stern, Robert J. (prefacer), Arima, Makoto (prefacer), Izu-Bonin-Mariana Arc system7 (3)422-431Submarine hydrothermal manganese deposits are relatively common along the Izu-Bonin-Mariana (IBM) arc but hydrothermal iron crusts are much less so. The hydrothermal manganese deposits show characteristics typical of submarine hydrothermal manganese deposits found worldwide. Recent hydrothermal manganese deposits associated with active hydrothermal systems occur on seamounts or rifts located approximately 5-40 km behind the volcanic front on the Shichito-Iwojima Ridge, IBM. Fossil hydrothermal manganese deposits associated with older hydrothermal systems occur on inactive seamounts located on ridges running parallel to the volcanic front in both forearc and back-arc settings. These fossil hydrothermal manganese deposits are generally overlain by younger hydrogenetic manganese crusts. Differences in minor element composition and in the rare earth element pattern of hydrothermal manganese deposits from the forearc and back-arc settings may reflect differences in the nature of substrate rocks or temperature of the hydrothermal fluids at these locations.completedEconomic geology, geology of ore depositsIgneous and metamorphic petrologyCenozoicchemical compositionhydrothermal alterationigneous rocksIzu-Bonin ArcIzu-Bonin-Mariana ArcKaikata SeamountLeg 126manganesemanganese oresmetal oresmetalsmetasomatismmineral compositionMioceneNeogeneNorth PacificNorthwest PacificOcean Drilling ProgramPacific OceanPaleogenePhilippine Seaplate tectonicsQuaternaryrare earthsriftingspatial distributionSumisu RifttectonicsTen'na SeamountTertiaryTorishima Knollvolcanic rocksvolcanismWest Pacificurn:org.iodp:exp:126urnlargerWorkCitationcampaignEnglishgeoscientificInformation138.4700140.550026.420031.2200