 | | Journal (article/letter/editorial) | | structures on the Endeavour Segment of the Juan de Fuca Ridge Margaret K. Tivey and John R. Delaney School...the axial valley of the Endeavour Segment at 47°57'N, are samples of unusually large sulfide structures...m along strike paralleling the 020 trend of the ridge crest. High-temperature fluids (350 to more than...submersible. These samples represent massive, complex portions of the sulfide structures which were not...individual layers in East Pacific Rise at 21°N and southern Juan de Fuca Ridge samples, with two exceptions: |  | | Journal (article/letter/editorial) | | Polymorphous Modifications of CuFe2S3 Compound S. N. Nenashevaa and T. A. Kravchenkob a Fersman Mineralogical...cations: orthorhombic cubanite, tetragonal, hexagonal, and cubic isocubanite. Cubanite, and tetragonal and...1134/S1075701515070090 INTRODUCTION Chalcopyrite CuFeS2, cubanite CuFe2S3, talna khite Cu9Fe8S16 mooihoekite Cu9Fe9S16...part of the Cu–Fe–S system chemically close to cubanite and chalcopyrite, which allowed us to specify...300°C, and then cooling to room temperature in a deenergized furnace. After ward, the representative |  | | Journal (article/letter/editorial) | | - 4 2 0 . "opyright ® 1995 by V. H. Winston & S o n , Inc. All rights reserved. Zinc, Copper, and Lead...in identifying tectonic regimes and separating ocean-island basalts into enriched- and depleted-source...average Zn, Cu, and Pb contents of normal mid-ocean ridge basalts (N-MORB) are 84, 70, and 0.35 ppm, respectively...defined at the superfast-spreading Southern East Pacific Rise, are similar to estimates of Pb in the primitive...chondrites. The very slow spreading Southwest Indian Ocean Ridge has a sequence with higher Pb contents, in addition |  | | Journal (article/letter/editorial) | | 363 [6] Hot spring deposits on the East Pacific Rise at 21 °N" preliminary description of mineralogy...inactive vent sites along the East Pacific Rise at 21°N during the RISE expedition of April, 1979. The...is found in sediments on the crest of the East Pacific Rise. Other accessory phases identified include...include copper-rich sulfides such as cubanite, chalcocite, covellite,and digenite; galena; Fe-oxyhydroxides...r o t h e r m a l heat a n d mass exchanges between convecting seawater a n d cooling oceanic crust at |  | | Journal (article/letter/editorial) | | environments M. Lafitte and R. Maury Laboratoire de Min&alogie expbrimentale et appliqu&, Universitb...was first m e n t i o n e d after the classical analyses m a d e b y D o e l t e r [1] a n d Smith [2]...s e r v e d c o m p o s i t i o n s were later challenged [3,4] a n d a t t r i b u t e d to analytical...analyses allow c o n s i d e r a t i o n of the p r o b l e m . However, the limited n u m b e r of analytical...analytical d a t a c o m m o n l y p r e v e n t e d general conclusions to be drawn. Recent studies [5-7] |  | Totsuka, Shuhei, Shimada, Kazuhiko, Nozaki, Tatsuo, Kimura, Jun-Ichi, Chang, Qing, Ishibashi, Jun-ichiro (2019) Pb isotope compositions of galena in hydrothermal deposits obtained by drillings from active hydrothermal fields in the middle Okinawa Trough determined by LA-MC-ICP-MS. Chemical Geology, 514. 90-104 doi:10.1016/j.chemgeo.2019.03.024 | Journal (article/letter/editorial) | | Hyogo 657-8501, Japan ACCEPTED MANUSCRIPT 5 Ocean Resources Research Center for Next Generation, Chiba...was the Iheya North field located on a volcanic complex and the AC other was the Izena field located...1988), East Pacific TE D Rise (LeHuray et al., 1988) and TAG area of the Mid-Atlantic Ridge, which... 2015a). The Iheya North Knoll is a volcanic complex located in the middle Okinawa Trough. Seismic...during scientific drilling expeditions of Integrated Ocean Drilling Program RI PT (IODP) Expedition 331 (Takai |  | Breier, J.A., Toner, B.M., Fakra, S.C., Marcus, M.A., White, S.N., Thurnherr, A.M., German, C.R. (2012) Sulfur, sulfides, oxides and organic matter aggregated in submarine hydrothermal plumes at 9°50′N East Pacific Rise. Geochimica et Cosmochimica Acta, 88. 216-236 doi:10.1016/j.gca.2012.04.003 | Journal (article/letter/editorial) | | in submarine hydrothermal plumes at 9°500N East Pacific Rise J.A. Breier a,⇑, B.M. Toner b, S.C. Fakra...sequester seawater trace elements and influence ocean-scale biogeochemical budgets. The relative importance...hydrothermal plume by in situ filtration at 9°500 N East Pacific Rise during a 3-day, 24 sample, time-series. Twenty-three...major mineral forming elements (Fe, Mn, S) was complex. Over 20 different minerals were observed, nine...understanding the net effect of hydrothermal fluxes on ocean and sedimentary trace element budgets. Ó 2012 Elsevier |  | | Report (volume) | | and Biologic Studies at Escanaba Trough, Gorda Ridge, Offshore Northern California JANET L. MORTON, ROBERT...and biologic studies at Escanaba Trough, Gorda Ridge, offshore northern California I Janet L. Morton...at Escanaba Trough: Geophysical results ........ 21 Janet L. Morton and Christopher G. Fox 3. Thermal...the SESCA area, Escanaba Trough, southern Gorda Ridge ................................. 131 Robert E....hydrothermal fluids from Escanaba Trough, Gorda Ridge ............................................... |  | | Book | | PETROLOGY OF THE OCEAN FLOOR FURTHER TITLESIN THISSERIES 1 J.L. MERO THE M I N E R A L RESOURCES OF...METHOD I N OCEANOGRAPHY 3 E.J.F. WOOD MICROBIOLOGY O F OCEANS A N D ESTUAR IES 4 G _ . NEUMANN OCEAN CURRENTS...GEOMAGNETISM I N M A R I N E GEOLOGY 7 W.J. WALLACE THE DEVELOPMENTS OF THE CHLORINITY/SALINITY CONCEPT I N OCEANOGRAPHY...l S l T Z l N SEA-LEVEL CHANGES 9 R.H.PARKER THE STUDY OF BENTHIC COMMUNITIES 10 J.C.J. N I H O U L (Editor)...A Y E V TEMPERATURE-SALINITY ANALYSIS OF WORLD OCEAN WATERS 12 E.J. FERGUSON WOOD and R.E. JOHANNES TROPICAL |  | | Journal (article/letter/editorial) | | Sulfur in peridotites and gabbros at Lost City (30°N, MAR): Implications for hydrothermal alteration and...southern face of the Atlantis Massif (Mid-Atlantic Ridge, 30°N) were examined to better understand serpentinization...hydrothermal sites located between 10° and 40°N along the Mid-Atlantic Ridge (MAR), Rainbow, Logatchev, Ashadze...address: Laboratoire de Géosciences Marines, Institut de Physique du Globe de Paris, 4 place Jussieu...aging processes and global geochemical fluxes in ridge and subduction zone environments. In addition, the |  | Mozgova, N. N., Borodaev, Yu. S., Gablina, I. F., Cherkashev, G. A., Stepanova, T. V. (2005) Mineral Assemblages as Indicators of the Maturity of Oceanic Hydrothermal Sulfide Mounds. Lithology and Mineral Resources, 40 (4) 293-319 doi:10.1007/s10987-005-0030-z | Journal (article/letter/editorial) | | Maturity of Oceanic Hydrothermal Sulfide Mounds N. N. Mozgova1, Yu. S. Borodaev2, I. F. Gablina3, G....Institute of Geology and Mineral Resources of the World Ocean (VNIIOkeanologiya), Angliiskii pr. 1, St. Petersburg...discovered in the internal rift of the Mid-Atlantic Ridge in the latest ten years (Fig. 1), have received...TAG Snake Pit 20° AFRICA 24°30′ ATLANTIC OCEAN Peu de Faule 16°45′ 20° Logatchev-1, Logatchev-2...1. Hydrothermal occurrences on the Mid-Atlantic Ridge. (1) MAR rift valley and transform faults; (2) hydrothermal |  | | Book | | consider internal communications. Within our complex industry secrecy and competition sometimes dictates...baseline designated 10 000 m E aligned N—S. The traverse line at 11 800 m N intersects the approximate centre...the surface expression of the body, which plunges east at about 30°, roughly conformable with enclosing...terrain of the Nanambu Complex. The Cahill Formation here dips at about 30° to the east. The Carpentarian...is from 20 to 90 m below the surface. The 11 800 m N traverse crosses the whole of the local Orebody stratigraphy |  | | Report (volume) | | catalyzing the reactions leading to assembling of the complex molecules needed for life on Earth (see, for example...“cations” and “anions,” and on Pearson’s valence rule, Σ/N = 8, where Σ = ne−ba−bc In this expression, ne is...compounds, ne/N < 8, in normal-valence compounds, ne/N = 8, and in polycationic compounds, ne/N > 8. As, Sb...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 |
|
