volcanogenic strata bound massive sulphides

Sulphur isotope characteristics of metamorphosed Cu (Zn) volcanogenic …

ELSEVIER Chemical Geology 135 (1997) 307-324 CHEMICAL GEOLOGY INCLUDING ISOTOPE GEOSCIENCE Sulphur isotope characteristics of metamorphosed Cu-(Zn) volcanogenic massive sulphide deposits in the Norwegian Caledonides Nigel J. Cook a' *, Jochen Hoefs b a il-fineralogisches Institut der …

The comparison of strata-bound massive sulfide …

strata-bound, volcanogenic, massive sulfides of Phanerozoic age The geochemistry of convergent-plate-margin basalts was identified in the Zlat6 Hory ore district greenschists by Figera et al. (1973). Jakeg and Pato6ka (1982) suggested that the Devonian volcanics of the Jeseniky Mts. display an ap-

Strata-bound massive sulfide deposits in Silurian-Devonian …

The massive sulfide bodies are on the flank of a black rhyolite dome and are assorted with Mg-rich rocks including talc, talc-carbonate, and talc-chlorite assemblages. The orebodies are strata-bound within dome-derived oligomictic rhyolite breccias, which are in turn enveloped by coarse polymictic fragmental rocks characteristic of vent facies ...

Volcanogenic massive sulfide occurrence model

Volcanogenic massive sulfide deposits, also known as volcanic-hosted massive sulfide, volcanic-associated massive sulfide, or seafloor massive sulfide …

VOLCANOGENIC MASSIVE SULPHIDE DEPOSITS

Volcanogenic massive sulphide (VMS) deposits, also known as volcanic-associated, volcanic-hosted, and volcano-sedimentary-hosted massive sulphide deposits, are major sources of Zn, Cu, Pb, Ag, and Au, and significant sources for Co, Sn, Se, Mn, Cd, In, Bi, Te, Ga, and Ge. They typically occur as lenses of polymetallic massive sulphide that form

13.—Zoning of Ore Deposits: Types and Causes

The origin of some strata-bound sulfide ore deposits. Econ. ... Precambrian volcanogenic massive sulphide deposits in Canada: a review. Geol. Surv.Pap. Can., 72–22, 1 ...

Volcanogenic massive sulfide deposits and anoxia in the …

Strata-bound massive sulfide deposits in Silurian-Devonian volcanic rocks at Harborside, Maine. Econ. Geol. (1984) T.S. Bowers ... Volcanogenic massive sulphide (VMS) deposits form in subaqueous environments from circulating hydrothermal fluids heated by volcanic activity. These deposits form as sulphide mounds, stratiform …

Controls on the siting and style of volcanogenic …

Volcanogenic massive sulphide (VMS) deposits form in subaqueous environments from circulating hydrothermal fluids heated by volcanic activity. These …

The stratabound sulphide deposits In the Folldal area, …

Five strata-bound massive sulphide deposits are situated at three different stratigraphic levels in the volcanogenic Fundsjø group in the Folldal area. The deposits are bosted in metabasalts, metarhyodacites and volcaniclastic rocks and betong to the Cu-Zn class of volcanic-associated massive sulphide deposits. The metal con tent of the deposits …

The comparison of strata-bound massive sulfide deposits

The Zlaté Hory ore deposits — as an example of volcanogenic, strata-bound, massive, base-metal sulfides occurring in the Devonian formations of the Jeseníky Mts. — are compared with distinctive Phanerozoic types representing this type of ore deposit, i.e., with Kuroko-type, Rosebery-type, Besshi-type and Cyprus-type deposits. The results of …

Ultramafic-hosted volcanogenic massive sulfide deposits: …

Ultramafic-hosted volcanogenic massive sulfide (UM-VMS) deposits, however, are commonly thought to be scarce on land but an extensive deposit review from the geological record challenges this assumption. These deposits occur in complex tectonic settings often referred to as "tectonic mélange", and their origin is often disputed (e.g ...

Mineral deposits in western Saudi Arabia; a preliminary report

Strata-bound massive sulfide deposits containing copper, zinc, and nickel sulfides associated with pyrite and pyrrhotite in complexly deformed volcanic rocks in Saudi Arabia have been the subject of controversy. They are considered by some geologists to be of syngenetic or volcanogenic origin, and by others to be epigenetic.

Sulphur isotope characteristics of metamorphosed Cu-( Zn) volcanogenic …

DOI: 10.1016/S0009-2541(96)00119-2 Corpus ID: 140564983; Sulphur isotope characteristics of metamorphosed Cu-( Zn) volcanogenic massive sulphide deposits in the Norwegian Caledonides

A thematic issue on the geological setting and genesis of volcanogenic …

Volcanogenic massive sulfide (VMS) deposits are strata-bound accumulations of sulfide minerals that precipitated at or near the sea floor in spatial, temporal and in many cases genetic association with volcanism. VMS deposits occur in rocks of Archaean to Recent age and are also actively forming at present-day …

Syngenesis and Epigenesis in Strata-Bound Metamorphosed …

Strata-bound deposits of base metals dominate the Proterozoic of India. The Pb-Zn mineralization in carbonate host rocks preserves better the original sedimentary characteristics, while, in most of the copper and copper-lead-zinc mineralization areas, textural evidence in schistose rocks of calcopelitic composition and meta-volcanics …

Volcanogenic Massive Sulfide Deposits | One Hundredth …

Volcanogenic massive sulfide deposits (VMS) are grouped into five lithostratigraphic types, using sequence boundaries defined by major time-stratigraphic breaks, faults, or major (subvolcanic) intrusions: (1) bimodalmafic settings (e.g., Noranda, …

Volcanogenic Massive Sulfide (VMS) Deposits » …

Volcanogenic massive sulfide (VMS) deposits are a type of mineral deposit that forms on or below the seafloor as a result of volcanic and hydrothermal …

A thematic issue on the geological setting and genesis …

Volcanogenic massive sulfide (VMS) deposits are strata-bound accumulations of sulfide minerals that precipitat-ed at or near the sea floor in spatial, temporal and in many cases genetic association with volcanism. VMS deposits …

Volcanogenic Massive Sulfides (VMS) Deposit …

Introduction to VMS Mineral accumulations known as volcanogenic massive sulfide (VMS) deposits occur on or. ... Two components make up the majority of VMS deposits Usually, there is a strata bound, mound-shaped to a tabular body made mostly of quartz, subordinate phyllosilicates, iron oxide minerals, and altered silicate wall-rock, with a …

Sulfur isotope characteristics of metamorphosed Zn–Cu volcanogenic

Zn- and Cu-rich massive sulfide ores of volcanogenic origin [volcanogenic massive sulfide (VMS) deposits] occur as stratiform/stratabound lenses of variable size hosted by gneisses, amphibolites, and schists of the Areachap Group, in the Northern Cape Province of South Africa. The Areachap Group represents the highly …

Strata-bound massive sulfide deposits in Silurian-Devonian …

Strata-bound polymetallic massive sulfide ores of Silurian-Devonian age occur within the Coastal volcanic belt of Maine and New Brunswick. This terrain, overprinted by greenschist-facies regional metamorphism, is thought by some to represent volcanism above a consuming plate margin, and by others a tensional tectonic environment. Along the east …

Volcanogenic Massive Sulfide Deposits | One Hundredth …

Geology and geochemistry of the strata-bound sulfide deposits of …

Geology and geochemistry of the strata-bound sulfide deposits of the Pyriton District, Alabama ... which were to the southeast. The deposits are similar to other volcanogenic massive sulfide deposits in arc-type settings with respect to geometry, structural history, associated rocks, base metal abundances, and igneous character of the host ...

(PDF) Volcanogenic Massive Sulphide– Oxide Gold

Volcanogenic Massive Sulphide– Oxide Gold Deposits of the Nubian Shield in Northeast Africa C. Tucker Barrie, Mohamed Abu Fatima Abdalla and R. Daniel Hamer Abstract The 0.85–0.55 Ga Arabian-Nubian Shield of northeast Africa comprises an assemblage of volcanic arc and sub-arc strata that are fertile for volcanogenic massive sulphide …

(PDF) Metavolcanic host rocks, mineralization, and …

The Wadi Bidah Mineral District of Saudi Arabia contains more than 16 small outcropping strata-bound volcanogenic Cu–Zn–(Pb) ± Au-bearing massive sulphide deposits and associated zones of ...

Volcanogenic massive sulfide deposits in China; setting, …

Abstract. Volcanogenic massive sulfide (VMS) deposits, an important base-metal deposit type in China, occur widely in submarine volcanic districts of variable …

(PDF) Volcanogenic massive sulfide deposits

Stratigraphic sections through the intracaldera flow-dominated lithofacies succession and the rhyolitic, volcaniclastic-dominated, lithofacies succession that hosts the Horne deposit along the...

Metavolcanic host rocks, mineralization, and gossans of …

The Wadi Bidah Mineral District of Saudi Arabia contains more than 16 small outcropping strata-bound volcanogenic Cu–Zn–(Pb) ± Au-bearing massive sulphide deposits and associated zones of ... Lydon 2007). Volcanogenic massive sulphide deposits form in a variety of tectonic settings, including backarc and intra arc basins and mid-ocean ...

Special Issue : Massive Sulfide Deposits all around the …

This Special Issue, "Massive Sulfide Deposits all around the World", intends to provide a worldwide reference on one of the most important sources of base (Cu, Pb, Zn) and precious (Au, Ag) metals. Massive sulfide deposits are commonly classified in two large categories, attending to the dominant processes during ore generation ...

Volcanogenic Massive Sulfide Deposits

Volcanogenic massive sulfide deposits are strata-bound ac- cumulations of sulfide minerals that precipitated at or near the sea floor in spatial, temporal, and genetic association with