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Friday, December 4, 2020 | History

2 edition of Geochemistry and economic potential of massive sulfide deposits from the eastern Pacific Ocean found in the catalog.

Geochemistry and economic potential of massive sulfide deposits from the eastern Pacific Ocean

Geochemistry and economic potential of massive sulfide deposits from the eastern Pacific Ocean

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Published by The Survey in Menlo Park, Calif .
Written in English

  • Geochemical prospecting -- Pacific Ocean.,
  • Geochemical prospecting -- Economic aspects -- Pacific Ocean.

  • Edition Notes

    StatementJames L. Bischoff ... [et al.] ; United States Department of the Interior, Geological Survey.
    SeriesOpen-file report -- 83-324., Open-file report (Geological Survey (U.S.)) -- 83-324.
    ContributionsBischoff, James L., Geological Survey (U.S.)
    The Physical Object
    Pagination1 v.
    ID Numbers
    Open LibraryOL17800223M

    Phone: () Email: @ Professor Damon A H Teagle MSc (Otago), PhD (Cantab) Professor of Geochemistry. Damon Teagle is Professor of Geochemistry in the School of Ocean and Earth Science, National Oceanography Centre Southampton at the University of Southampton and Director of the Southampton Marine and .

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Geochemistry and economic potential of massive sulfide deposits from the eastern Pacific Ocean Download PDF EPUB FB2

Geochemistry and economic potential of massive sulfide deposits from the eastern Pacific Ocean. Volcanogenic massive sulfide deposits (VMS) are a thoroughly researched deposit class. Following the discovery in of active hydrothermal vent systems in the present-day oceans (Hannington et al., ), research on virtually all aspects of this deposit class has publication of the VMS synthesis in the Economic Geology Seventy-Fifth.

C onsiderable variation exists in the metal contents of volcanogenic massive sulfide (VMS) deposits that is temporally and spatially associated with mafic or felsic volcanic rocks, ranging in ages from Archean to Tertiary (Sangster and Scott, ; Franklin et al.,Large et al., ; Lentz, ), in many regions of land and on midocean ridges and back-arc basins of the.

The eastern Pontides orogenic belt, which is one of the important metallogenic provinces in the world, hosts various economic mineralizations such as volcanogenic massive sulfide, epithermal gold–silver, porphyry copper–molybdenum, and skarn-type and chromite (e.g., Abdioğlu and Arslan,Akaryalı and Tüysüz,Akçay et al Cited by: Hanönü massive sulfide (HMS) mineralization is the first sediment-hosted massive sulfide deposit discovered in Anatolia (Turkey).

Containing more than. Isotope geochemistry tracks the maturation of submarine massive sulfide mounds (Iberian Pyrite Belt) Article in Mineralium Deposita November with Reads How we measure 'reads'.

Deep-ocean mineral deposits could make a significant contribution to future raw material supply. Growing metal demand and geopolitics are focussing increasing attention on their resource potential and economic importance. However, accurate assessment of the total amounts of metal and its recoverability are very difficult.

Deep-ocean mineral deposits also provide valuable. Kong, Zhigang Wu, Yue Liang, Ting Zhang, Feng Meng, Xuyang Lu, Lin and Yang, G. Sources of ore-forming material for Pb-Zn deposits in the Sichuan-Yunnan-Guizhou triangle area: Multiple constraints from C-H-O-S-Pb-Sr isotopic compositions.

Geological Journal, Vol. 53, Issue., p. De Souza Author: John Ridley. Patrick J. Sullivan, James J.J. Clark, in The Environmental Science of Drinking Water, Mining and Pollution. When iron sulfide minerals are exposed to the atmosphere and water, the water becomes acid and enriched in iron that eventually leaves yellow and reddish deposits in its wake.

Other metal sulfides also react with the atmosphere and water to release toxic metals. Volcanogenic massive sulfide deposits like Windy Craggy and Greens Creek in the Alexander terrane could also have supplied S to the Duke Island magmas. Peter and Scott [] reported a range of δ 34 S values between −7 and +11 for the Windy Craggy deposit, with more than 90% of the values between −2 and 3‰.

A hydrothermal vent is a fissure on the seafloor from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart at spreading centers, ocean basins, and hotspots.

Hydrothermal deposits are rocks and mineral ore deposits formed by the action of hydrothermal vents. Volume 84 complete / / Geochemistry of the hot rocks of the volcanogenic massive sulfide deposit at Que River, Tasmania; Geochemistry and metamorphism of the Prieska Zn-Cu Deposit, South Africa; Geologic setting, depths of emplacement, and regional distribution of fluid inclusions in intrusions of the Central Wasatch Mountains, Utah.

Magmatic Cu‐Ni‐PGE sulfide mineralization associated with mafic to ultramafic igneous rocks is rare in convergent plate settings. However, recent exploration in Cited by: In the 20th century, the production of metals in Japan peaked in ~, fell in the ensuing economic depression, rose again prior to the beginning of the Pacific War, and decreased sharply until about (Fig.

In the postwar period, metal production revived, and production peaked in during the period of rapid growth of the Japanese Cited by: 1. Abstract. Fossil hydrothermal systems exposed in ophiolites include subsea-floor feeder-zone mineralization in volcanic rocks, diabase, and high-level gabbro, massive sulfide deposited by fluids discharging at the sea-floor/seawater interface, and peripheral Fe- and Mn-oxide facies deposited on the surrounding sea by: 6.

Research has increased our knowledge of numerous Earth and biological processes and our understanding of land-based analogues to these mineralizing systems, especially volcanogenic massive sulfide deposits.

With ocean research well established, several phases of resource exploration and evaluation on the seafloor followed.

HERZIG, P.M. () Economic potential of seafloor massive sulfide deposits: ancient and modern. Royal Society Discussion Meeting, Response of the Earth´s lithosphere to extension, Abstracts, London, p.

8 Genesis of massive sulfide deposits on a sediment-covered spreading center, Escanaba Trough, southern Gorda Ridge. Economic Geology, – CrossRef Google ScholarCited by: Note that the geology text above is an excerpt from my new book Economic Geology (second edition), that will appear early next year (Pohlin print).

References. Barnes, S.J., Mole, D.R. & Wells, M.A. () Western Australia nickel overview. Pp in Australian Ore Deposits (ed G.N. Phillips), Australasian Institute of Mining and.

The island of Cyprus, for example, holds 30 massive sulfide deposits, which were a main source of copper for ancient Rome. For a number of reasons, the mining industry’s interest in seafloor massive sulfides is focusing mostly on vent fields in the western South Pacific. In the case of deep-sea nodules, criteria for economic deposits of a combined Ni, Cu, and Co content >% and an abundance on the deep-sea floor >10 kg m −2 meant that only a small percentage (Pacific Ocean and from the Central Cited by: Revan MK, Genc Y, Maslennikov VV, Maslennikova SP, Large RR, et al., 'Mineralogy and trace-element geochemistry of sulfide minerals in hydrothermal chimneys from the Upper-Cretaceous VMS deposits of the eastern Pontide orogenic belt (NE Turkey)', Ore Geology Reviews, 63 pp.

ISSN () [Refereed Article]. With mining of seafloor massive sulfides (SMS) coming closer to reality, it is vital that we have a good understanding of the geochemistry of these occurrences and the potential toxicity impact associated with mining them.

In this study, SMS samples from seven hydrothermal fields from various tectonic settings were investigated by in-situ microanalysis (electron microprobe Cited by: 3. Genesis of the sediment-hosted Fe-Cu-Zn(-Au) sulfide deposits in Escanaba Trough, Gorda Ridge, NE Pacific, with emphasis on the solubility and deposition of gold Tormanen, T.

/ Koski, R. print version. Fröclich,F., Gutzmer, J, Siikaluoma, J. and Osbahr, I. () Sulfide vein mineralization of the shallow eastern stokworkzone and its genetic relation to the massive sulfide mineralization of the Sakatti Cu-Ni-PGE deposit, Finland.

3rd Finnish National Colloquium of Geosciences, Espoo, 15–16 March Abstract Book. Jones S, Gemmell JB, Davidson GJ, 'Petrographic, geochemical, and fluid inclusion evidence for the origin of siliceous cap rocks above volcanic-hosted massive sulfide deposits at Myra Falls, Vancouver Island, British Columbia, Canada', Economic Geology,(3) pp.

Ediger V S and Erler A, - Palynology, geochemistry, and thermal history of the shales associated with the Küre massive sulfide deposits (northern Turkey); in Ore Geology Reviews v5 pp Eliopoulos D G, Economou-Eliopoulos M - Platinum-group element and Gold contents in the Skouries Porphyry Copper deposit, Chalkidiki Peninsula.

Deep-Sea Mining: Resource Potential, Technical and Environmental Considerations Rahul Sharma (eds.) This comprehensive book contains contributions from specialists who provide a complete status update along with outstanding issues encompassing different topics related to deep-sea mining.

The decline in the number of experienced exploration geologists in recent years has produced a precarious situation with negative repercussions for a profession that is already undervalued by the public, particularly after the BreX stock scandal in the late s and the poor environmental reputation in most developed countries.

It had originally formed at the proto-Pacific Ocean and then was trapped at a eastern margin of Eurasian continent by initiation of subduction. Compared to felsic-hosted seafloor massive sulfide deposits, sulfide minerals from ultramafic-hosted deposits show higher concentrations of Se and Te, but lower As, Sb, and Au concentrations, the.

Cu-Au-Ag massive sulfide deposits in the evolution and facies architecture of a Ga marine volcanic arc, Skellefte district, Sweden: Economic Geology, 91, – on southern slope of Govi-Altai Mountain Range: Geology of Ore Deposits, no.

3, p (in Russian). Bai, Wenji, Wang, Binxi, and Lia, Rixuan,Chromite deposits of China, in Committee of Mineral Deposits of China, Mineral Deposits of China: Geological Publishing House, Beijing, v.

2 of 3, p. (in Chinese). InNeptune Resources NL, a mineral exploration company, applied for and was gran km² of exploration rights over the Kermadec Arc in New Zealand's Exclusive Economic Zone to explore for seafloor massive sulfide deposits, a potential new source of lead-zinc-copper sulfides formed from modern hydrothermal vent fields.

A page book organized and edited by IMMS member Steve Scott has been published for Elsevier's Treatise of Geochemistry and contains chapters by IMMS members, Hein and Koschinsky on nodules and crusts, Hannington in part on seafloor massive sulfides, Piper and Perkins on phosphate, and Warren on evaporites.

Full reference: S.D. Scott, volume editor. The metamorphic conditions inferred for these previously described deposits varied from ∼°C, at the Lengenbach deposit in Switzerland (Hofmann, ), to as high as °C at the Challenger deposit in Australia (Tomkins & Mavrogenes, ).The lower end of this range shows that the onset of partial sulfide anatexis can occur at significantly lower Cited by: u.s.

department of the interior. u.s. geological survey. prepared in collaboration with: russian academy of sciences. geological committee of russia. Hannington, M.

D., Jamieson, J., Monecke, T. and Petersen, S. () Modern sea-floor massive sulfides and base metal resources: Toward an estimate of global sea-floor massive sulfide potential. In: The Challenge of Finding New Mineral Resources: Global Metallogeny, Innovative Exploration, and New Discoveries.

Mineral deposits have been found both in rocks that lie beneath the oceans and in rocks that form the continents, although the only deposits that actually have been mined are in the continental rocks.(The mining of ocean deposits lies in the future.) The continental crust averages 35–40 kilometres (20–25 miles) in thickness, and below the crust lies the mantle.

Australasia. Aerden D G A - Formation of massive sulfide lenses by replacement of folds: The Hercules Pb-Zn Mine, Tasmania; in Econ. Geol. v88 pp Agnew M W, Large R R and Bull S W - Lewis Ponds, a hybrid carbonate and volcanic-hosted polymetallic massive sulphide deposit, New South Wales, Australia; in Mineralium Deposita v39 pp   It’s been a while since my last blog post, but I’m hoping to get back on the wagon a bit more in Outlined below is an expanded and annotated post that was recently published in the Gazette at Memorial was written mostly to illustrate the importance of metals to our current (and future) lifestyles, particularly in rural Newfoundland and Labrador.

Stolz, AJ, “Geochemistry of the Mount-Windsor Volcanics - Implications for the Tectonic Setting of Cambro-Ordovician Volcanic-Hosted Massive Sulfide Mineralization in Northeastern Australia”, Economic Geology, 90 (5) pp. Book; Gifkins, CC and Herrmann, W and Large, RR, Altered Volcanic Rocks - A guide to description and interpretation, Centre for Ore Deposit Research University of Tasmania, Hobart, pp.

ISBN () [Authored Research Book] Solomon, M and Groves, DI, The geology and origin of Australia's mineral deposits, Centre for Ore Deposit Research and .Washington, DC: The National Academies Press. doi: / located at the northern end of the Endeavour segment of the Juan de Fuca Ridge in the northeast Pacific Ocean (41° N, ° 30’ W).

Like TAG, Middle Valley is a basalt-hosted site with a massive sulfide deposit that is actively producing high-temperature hydrothermal.