 | Zierenberg, Robert A., Koski, Randolph A., Morton, Janet L., Bouse, Robin M. (1993) Genesis of massive sulfide deposits on a sediment-covered spreading center, Escanaba Trough, southern Gorda Ridge. Economic Geology, 88 (8) 2069-2098 doi:10.2113/gsecongeo.88.8.2069 | Journal (article/letter/editorial) | | averagingmorethan1 g/t Au. Massivesulfidefromthe Escanaba troughis enrichedin groupIV, V, andVI elementsrelativeto...ZIERENBERG ET AL. die Valley (northernJuande Fuca Ridge),and the cino fracture zone on the south and...approxiaboutthe tectonicsettingsand the natureof ore- Escanaba formingprocesses inancientpalcorift,sediment-dom-...inantenvironments. Data fromthe Escanaba trough, hough,1980; Wilson,1989). The Escanaba consistent with the slow-spreading...intersection Escanabatrough, the sediment-covered southern- with the Mendocino fracture zone. Southof 41ø17'N |  | Von Damm, K.L., Parker, C.M., Zierenberg, R.A., Lilley, M.D., Olson, E.J., Clague, D.A., McClain, J.S. (2005) The Escanaba Trough, Gorda Ridge hydrothermal system: Temporal stability and subseafloor complexity. Geochimica et Cosmochimica Acta, 69 (21) 4971-4984 doi:10.1016/j.gca.2005.04.018 | Journal (article/letter/editorial) | | doi:10.1016/j.gca.2005.04.018 The Escanaba Trough, Gorda Ridge hydrothermal system: Temporal stability... OLSON,3 D. A. CLAGUE,4 and J. S. MCCLAIN2 1 Complex Systems Research Center, Institute for the Study...from the active hydrothermal system in Escanaba Trough, Gorda Ridge in 2000 and 2002 remain unchanged from...chemistry of the hydrothermal system are much more complex within the sediment cover than would be expected...whether the system had evolved since 1988. Escanaba Trough is one of only four active hydrothermal systems |  | | Journal (article/letter/editorial) | | Pyrrhotite-Rich Massive Sulfide Deposits, Escanaba Trough, Southern Gorda Ridge TUOMO O. TÖRMÄNEN* Institute of...sediment-covered floor of the Escanaba trough, the slow-spreading, southernmost segment of Gorda Ridge. These concentrations...chimneys. The low solubility of Au as a bisulfide complex and the absence of fluid mixing during this stage...that gold was effectively scavenged from the Escanaba trough vent fluids by coexisting droplets of liquid...of hydrothermal fluids with sediment in the Escanaba trough. In contrast, the absence of the Au-Bi association |  | | Report (volume) | | massive sulfide mound in the NESCA area in the Escanaba Trough , offshore of northern California, depth 3232...Hydrothermal, and Biologic Studies at Escanaba Trough, Gorda Ridge, Offshore Northern California JANET...hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore northern California I Janet...references. 1. Geology-Escanaba Trough. 2. Hydrothermal vents-Escanaba Trough. 3. Hydrothermal vent faunaEscanaba...faunaEscanaba Trough. 4. Escanaba Trough. I. Morton, Janet L. II. Zierenberg, Robert A. III. Reiss, Carol |  | | Report (issue) | | Mapping and Research: Working Together in the Pacific EEZ U.S. GEOLOGICAL SURVEY CIRCULAR 1092 AVAILABILITY...Mapping and Research: Working Together in the Pacific EEZ MILLINGTON LOCKWOOD, National Oceanic and Atmospheric...Mapping and Research : working together in the Pacific EEZ I Millington Lockwood and Bonnie A. McGregor...Includes bibliographical references. 1. Ocean bottom-Pacific Coast (U.S.)-Maps-Congresses. I. Lockwood...Program-Challenges and Choices John Carey 9 Mapping the Ocean Floor from the DMA-Defense Hydrographic Initiative |  | Suzuki, Ryohei, Ishibashi, Jun-Ichiro, Nakaseama, Miwako, Konno, Uta, Tsunogai, Urumu, Gena, Kaul, Chiba, Hitoshi (2008) Diverse Range of Mineralization Induced by Phase Separation of Hydrothermal Fluid: Case Study of the Yonaguni Knoll IV Hydrothermal Field in the Okinawa Trough Back-Arc Basin. Resource Geology, 58 (3) 267-288 doi:10.1111/j.1751-3928.2008.00061.x | Journal (article/letter/editorial) | | Yonaguni Knoll IV Hydrothermal Field in the Okinawa Trough Back-Arc Basin Ryohei Suzuki1,3, Jun-Ichiro Ishibashi1...1370–1385 m near the western edge of the southern Okinawa Trough. During the YK03–05 and YK04–05 expeditions...and sulfides (sphalerite, galena, chalcopyrite, alabandite, and minor amount of tennantite and enargite);...systems in the arc–back-arc setting of the western Pacific would provide a good test field for discussing...shallower water depth compared to those on the mid-ocean ridges, the phase separation should start at sub-critical |  | | Journal (article/letter/editorial) | | west. To the north, the skarn crops out. To the east, it is bordered by a later rhyolite (Fig. 1). The...at the top of the unit in the southern and the western sectors of the de- Fig. 4. Layered sphalerite...ore. On the modern basaltic seafloor of the Indian Ocean analogous sphaleritebearing jaspers have been described...Zn/Cd ratios for the jasper ores from the Indian Ocean are about 200 on average. The Zn/Cd ratios of secondary...pluton is required. The stratification of the skarn complex indicates a sedimentary supply of elements in general |  | | Report (issue) | | RESULTS OF THE 1986 Sea Cliff DIVE PROGRAM, Escanaba Trough Robert A. Zierenberg 1 , Janet L. Morton 1...samples.......10 Physiographic map of the Escanaba Trough..............................11 Bathymetric...established the basic geologic setting of the Escanaba Trough and provided detailed information on the SESCA...ACKNOWLEDGEMENTS The Escanaba Trough dive program was coordinated by the Gorda Ridge Technical Task Force...NESCA sites are two of several areas in the Escanaba Trough where volcanic edifices along the spreading |  | | Book | | the Japanese Islands as well as other western Pacific regions. vi Preface In Chapter 2, a geochemical...deposits) are compared with those of midoceanic ridge deposits and Kuroko deposits. In Chapter 3, hydrothermal...estimated. These fluxes are compared with midoceanic ridge hydrothermal fluxes. Particularly, hydrothermal...relationships in Kuroko and vein-type deposits in southern Hokkaido, Japan ....................... 1S.4............................... 2.3. I .1. Okinawa Trough ......................... ............. 2.3. I |  | | Report (issue) | | where high-grade ores are hosted by a volcanic complex consisting of quartz latite domes in coeval lavas...copper, cobalt, and platinum-group metals . This east- looking view shows downtown Noril ' sk, smelters...platinumgroup-element resources? Examples from southern China and the Yukon, Canada, and implications...fluids, and altered sediment in Escanaba Trough, southern Gorda Ridge- Elements of a mature hydrothermal...Bank's role in stimulating minerals development - Juan Proaiio, Inter-American Development Bank Criteria |  | | Report (issue) | | of sediment-hosted massive sulfide in Escanaba trough, Gorda Ridge-by Robert A. Zierenberg, J.M. Edmond...of the White Mountains National Recreation Area, east-central Alaska-by Florence R. Weber, Thomas D. Light...sulfide deposits in pre-Tertiary island arc and ocean basin environments in Nevadaby Maureen G. Sherlock...setting of stratiform manganese deposits in the southern Basin and Range province-by Randolph A. Koski...batholith and associated polymetallic deposits, southern China-by Lawrence W. Snee and Wang Zhifen 53. |  | Zhang, Bang-Lu, Lv, Zhi-Cheng, Dong, Zhi-Guo, Zhang, Xin, Yu, Xiao-Fei, Li, Yong-Sheng, Zhen, Shi-Min, Wang, Chang-Le (2022) Source Characteristics of the Carboniferous Ortokarnash Manganese Deposit in the Western Kunlun Mountains. Minerals, 12 (7) 786 doi:10.3390/min12070786 | Journal (article/letter/editorial) | | sedimentary manganese (Mn) deposits is commonly complex. Here we use systematic major and trace element...precise source of Mn in ancient deposits is commonly complex. Generally, hydrothermal and terrestrial weathering...hydrothermal vents. For example, considering a mid-ocean ridge or a failed rift basin setting, Gutzmer [16]...thethe East totothe to the thewest west[47,48], [47,48],and andhas hasbeen been offset from East Kunlun...Cenozoic Altyn sinistral strike-slip fault to the east (Figure 1A) [49–51]. As one of the major tectonic |  | | Journal (article/letter/editorial) | | Logatchev and Rainbow fields at the Mid-Atlantic Ridge, where venting of high-T–low-pH hydrothermal fluid...on a late Archaean gneissic–granitoid basement, east of the suture between the Archaean Karelian Craton...80 Ga Palaeoproterozoic Svecofennian island arc complex (e.g., Gaál and Gorbatschev, 1987; Korsman et al...assemblage lies within an allochthonous nappe complex that was emplaced onto the Karelian Craton margin...thrust from the west onto the Archaean basement complex. The Kaleva assemblage in the Outokumpu area consists |  | | Book | | Geological Survey of Western Australia 100 Plain St. East Perth WA 6004 Australia franco.pirajno@doir.wa.gov...springer.com To my wife Foreword The Earth is a complex and dynamic system that over 4.5 billion years...work in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific, China, Greenland...(GSWA) typed most of the tables, especially the complex ones. Jean Johnston and Chris Hocking performed.... . . . . . . . . . . . . . 1.4.8 The Role of Complex Ions and Ligands in Hydrothermal Fluids . . . |  | | Report (volume) | | S. Grew University of Maine L. M. Anovits Oak Ridge National Laboratory Series Editor: Paul H. Ribbe...Grew (University of Maine) and Larry Anovitz (Oak Ridge National Laboratory), who supervised 19 contributions...point 4000°C. Crystalline boron is exceedingly complex, and the number of polymorphs could be "a round...2002 iv Lawrence M. Anovitz Oak Ridge National Laboratory Oak Ridge, Tennessee B O R O N : MINERALOGY...s.l.) Magnesiodumortierite Alkali-free dravite Complex tourmalines Dravite Uvite Elbaite Highly aluminous | | | Report (volume) | | S. Grew University of Maine L. M. Anovitz Oak Ridge National Laboratory Series Editor: Paul H. Ribbe...Grew (University of Maine) and Larry Anovitz (Oak Ridge National Laboratory), who supervised 19 contributions...point 4000°C. Crystalline boron is exceedingly complex, and the number of polymorphs could be “a round...cc-occcoeste ostease cos adace eee tee nme ee eco 148 Complex toptmalines::«. Gaca fed oe. 2eh se nee ee aay...150 UWAToke ecah ee ne" San aio Salliet SE RUE ig1 De EMBO Semnt EEE aN ae arene a See 152 El baitic eee |  | | Book | | core devoid of further nuclear energy then gives rise to a type II supernova and the formation of a neutron...companion onto a compact object. This naturally gives rise to a variety of interesting phenomena: classical...10M( stars is now understood to be an extremely complex process (Busso et al., 1999). On the first ascent...massive stars undergoing supernova explosions can give rise to neutron production via such reactions as 13C(a...to the interstellar medium. Proc. Astron. Soc. Pacific 110, 3 –26. Goswami A. and Prantzos N. (2000) Abundance |  | | Report (volume) | | catalyzing the reactions leading to assembling of the complex molecules needed for life on Earth (see, for example...similarity Definition of isotypy and homeotypy (Lima-de-Faria et al. 1990) is the most important point in...1974) and cyclic twinning (Hyde et al. 1974). For complex sulfides, noncommensurability between adjacent...jordanite-kirkiite pair, rodbased complex sulfides). Diarchetypal examples include complex sulfides of the kobellite...Ferraris et al. (2004). Rod-layer structures of complex Pb-Sb sulfides and of selected Pb-Bi sulfides belong |
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