Marble-hosted sulfide ores in the Angouran Zn-(Pb–Ag) deposit, NW Iran: interaction of sedimentary brines with a metamorphic core complex

Gilg, H. Albert; Boni, Maria; Balassone, Giuseppina; Allen, Cameron R.; Banks, David; Moore, Farid

doi:10.1007/s00126-005-0035-5

Cited by 95 publications

(39 citation statements)

References 23 publications

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“…Simplified structural subdivision map of Iran and the locality of the study area (modified from Shahabpour, 1994). This figure is available in colour online at www.interscience.wiley.com/journal/gj trend similar to the trend of the Sanandaj-Sirjan Zone and is spatially associated with this zone (Gilg et al, 2006), these geological and lithological characteristics seems to have more affinities to the Central Iran Zone. Recently, Nadimi (2007) has included the study area in the Central Iran Zone.…”

Section: Introductionmentioning

confidence: 71%

“…In the context of the structural subdivisions of Iran, the Mahneshan granitoids has been assigned to various tectonic zones by different authors. It was included in the Central Iran Zone by Berberian and King (1981), at the junction of the Central Iran, AlborzAzarbaijan and Sanandaj-Sirjan zones by Babakhani and Ghalamghash (1990) and in the Sanandaj-Sirjan Zone by Gilg et al (2006). Although the Takab and Mahneshan metamorphic complex has a dominant NW-SE structural Figure 1.…”

Section: Introductionmentioning

confidence: 99%

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Mineralogy, geochemistry and geodynamic setting of the granitoids from NW Iran

Saki

2010

Geological Journal

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The Mahneshan granitoids intruded the Neoproterozoic-Lower Cambrian regional metamorphic rocks in northwestern Iran. These granitoids consisting mainly of K-feldspar, plagioclase, quartz, muscovite, garnet and biotite display a number of subtypes in terms of structure, texture and mineralogy. Geochemically, they are peraluminous and (or) slightly peraluminous with variable normative corundum contents (0.28-4.50%), and medium to high potassic with calc-alkaline affinity. Chondrite-normalized REE patterns indicate that these granitoids can be divided into three distinct groups, supported by petrographic data. The REE patterns of the first group are shallow-sloping in LREE relative to HREE ([La/Yb]n ¼ 1.37-2.48), exhibiting pronounced negative Eu (Eu/Eu Ã ¼ 0.23-0.35). The second group granitoids are characterized by strong LREE-enrichment relative to HREE ([La/Yb]n ¼ 3-6.20), with positive Eu anomalies (Eu/Eu Ã ¼ 1.15-1.47). The third group of granitoids is depleted in the middle REE relative to other LREE and HREE. These REE patterns suggest the role of plagioclase and hornblende in their source of granitoids for group 1 and groups 2 and 3, respectively. The trends of Eu/Eu Ã ratio versus silica contents suggest mixing of mafic material with components formed by crustal melting with a plagioclase-rich residue. Furthermore, thermobarometric estimations indicate that these rocks may have been formed at depths of 15-18 km at relatively low temperatures. The Mahneshan granitoids are S-type and may have been emplaced in a syn-to post-collisional tectonic setting, consistent with an origin of water-saturated magmas with heterogeneous composition derived from different crustal rocks.

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Section: Introductionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Mineralogy, geochemistry and geodynamic setting of the granitoids from NW Iran

Saki

2010

Geological Journal

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“…Angouran has 16 million tons of ore with a zinc concentration of 26% and a lead concentration of 6% 4. This deposit is close to the Urumieh-Dokhtar Magmatic Arc, which is situated within one of a number of metamorphic inlier complexes in the central Sanandaj-Sirjan Zone of the Zagros orogenic belt (Gilg et al 2005). A metamorphic core complex surrounds the Angouran deposit, which comprises amphibolites, serpentinites, gneisses, micaschists, and various, mainly calcitic and rarely dolomitic marbles.…”

Section: An Empi Rical Applicationmentioning

confidence: 93%

“…The Angouran orebody is located in the crest of an open anticlinal structure within the metamorphic basement that plunges eastward at 10-20 0 (Gilg et al 2005). This ore body is some 600 m long in Northern-Southern line and 200-400 m across.…”

Section: An Empi Rical Applicationmentioning

confidence: 99%

Using A Integrated MCDM Model for Mining Method Selection in Presence of Uncertainty

Yazdani-Chamzini

Yakchali

Zavadskas

2012

Economic Research-Ekonomska Istraživanja

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“…Eocene alternative sequences of volcanic rocks (andesite, dacite) and volcanoclastics (tuff and ignimbrites) form Figure 1. Sketch map showing the position of the study area on the Central Iranian magmatic zone [7]. Table 2.…”

Section: Geology Of the Regionmentioning

confidence: 99%

Chemistry of Minerals and Geothermobarometry of Volcanic Rocks in the Region Located in Southeast of Bam, Kerman Province

Yazdi¹,

Ashja-Ardalan²,

Emami³

et al. 2017

OJG

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In this paper, tectonic and geothermobarometric environments have been studied with respect to the combination of pyroxene, olivine and plagioclase in volcanic rocks in the southeast of Bam. The combination of volcanic rocks in the region consists of olivine basalt, basalt, alkaline basalt, andesite, trachyandesite and pyroxene andesite. This combination is the result of the processes of crystallization and sometimes contamination. Plagioclase, clinopyroxene, olivine, and amphibole constitute the major minerals (rock forming minerals) in these rocks. Porphyritic to mega-porphyritic textures with microlithic, glumero-porphyritic and amigdaluidal matrix are observed. Based on the thermometric calculations, plagioclase, pyroxene, and olivine minerals and the rocks of this region are crystallized at a pressure of 1.5 to 7 kb and temperatures ranging from about 700˚C to 1250˚C.

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Marble-hosted sulfide ores in the Angouran Zn-(Pb–Ag) deposit, NW Iran: interaction of sedimentary brines with a metamorphic core complex

Cited by 95 publications

References 23 publications

Mineralogy, geochemistry and geodynamic setting of the granitoids from NW Iran

Mineralogy, geochemistry and geodynamic setting of the granitoids from NW Iran

Using A Integrated MCDM Model for Mining Method Selection in Presence of Uncertainty

Chemistry of Minerals and Geothermobarometry of Volcanic Rocks in the Region Located in Southeast of Bam, Kerman Province

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