Geologic setting, genesis and transformation of sulfide deposits in the northern part of Khetri copper belt, Rajasthan, India ? an outline

Sarkar, Surajit; Dasgupta, Somnath

doi:10.1007/bf00206508

Cited by 60 publications

(28 citation statements)

References 32 publications

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“…Both groups have a similar thickness of ca. 1300 m, and the contact between the two is gradational and conformable (Das Gupta, 1968;Sarkar and Dasgupta, 1980). These two groups are unconformably underlain by~1820 Ma granitic intrusions, and were intruded by numerous granites with zircon U-Pb ages of 1720-1700 Ma (Kaur et al, 2007(Kaur et al, , 2011.…”

Section: Regional Geologymentioning

confidence: 97%

In-situ LA-ICP-MS trace elemental analyses of magnetite: Cu-(Au, Fe) deposits in the Khetri copper belt in Rajasthan Province, NW India

Chen

Zhou

et al. 2015

Ore Geology Reviews

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Section: Regional Geologymentioning

confidence: 97%

In-situ LA-ICP-MS trace elemental analyses of magnetite: Cu-(Au, Fe) deposits in the Khetri copper belt in Rajasthan Province, NW India

Chen

Zhou

et al. 2015

Ore Geology Reviews

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“…Chlorite, biotite and sericite formed during retrogression. The peak metamorphic conditions (M2) have been estimated as 550-600 o C temperature at 3-5 kbar pressure (Lal andShukla, 1975, Sarkar andDasgupta, 1980). Using electron microprobe dating of monazite, the M1 and M2 have been constrained at 1100 Ma and 920 Ma respectively and a contact metamorphic signature has been identified in the Khetri sub-basin at ~650 Ma (Pandey et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Low Grade Metamorphism in the Lalsot-Bayana Sub-basin of the North Delhi Fold Belt and its Tectonic Implication

Mehdi

Kumar

Pant

2015

Journal of the Geological Society of India

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From west to east, the North Delhi Fold Belt (NDFB) is composed of the Khetri sub-basin, the Alwar subbasin and the Lalsot-Bayana sub-basin. The metamorphic history of the easternmost Lalsot-Bayana sub-basin is considerably different from the other two as it has been reported to be nearly unmetamorphosed, while the other two subbasins display medium grade metamorphic assemblages. Textural, mineralogical and geothermometric data obtained for metabasic lithology, indicate metamorphism in the sub-greenschist facies conditions (~300 o C temperature). This is corroborated by the development of chemically distinct authigenic phengitic muscovite in metasiltstone. The Alwar and the Khetri sub-basins preserve evidence of ~1000 Ma orogeny signifying closure of the Delhi basin in the form of amphibolites facies metamorphism which is lacking in the Lalsot-Bayana sub-basin. The lithopackage and metamorphism of this sub-basin suggests it to be a pre-Delhi intracratonic rift related volcanosedimentary sequence.

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“…The Dharwar Craton Kuddapah Basin in the early Mesoproterozoic was rich in strata-bound Zn-Pb-Cu deposits and barite. Pb-Zn deposits are hosted in sedimentary rocks, whereas Cu mineralization is noted in basic volcanic rocks (Sarkar and Dasgupta, 1980;Panigrahi et al, 1993;Sarkar et al, 2000;Nagarajur et al, 2006;Turchenko et al, 2009). …”

Section: Precambrian Metallogenesis Of the Indmentioning

confidence: 96%

Correlations between the North China Craton and the Indian Shield: Constraints from regional metallogeny

Chen

et al. 2015

Geoscience Frontiers

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a b s t r a c tThe correlation between the North China Craton (NCC) and the Indian Shield (IND) has been a hot topic in recent years. On the basis of ore deposit databases, the NCC and IND have shown broad similarity in metallogenesis from the middle Archaean to the Mesoproterozoic. The two blocks both have three major metallogenic systems: (1) the Archaean BIF metallogenic system; (2) the Paleoproterozoic Cu-Pb-Zn metallogenic system; and (3) the Mesoproterozoic Fe-Pb-Zn system. In the north margin of the NCC and the west margin of the IND, the Archaean BIF-Au-Cu-Pb-Zn deposits had the same petrogenesis and host rocks, the Paleoproterozoic Cu-Pb-Zn deposits were controlled by active belts, and the Mesoproterozoic Fe-Pb-Zn deposits were mainly related to multi-stage rifting. Matching regional mineralization patterns and geological features has established the continental assembly referred to as "NCWI", an acronym for the north margin of the NCC (NC) and the west margin of the IND (WI) during the middle Archaean to the Mesoproterozoic. In this assembly, the available geological and metallogenic data from the Eastern Block and active belts of NC fit those from the Dharwar craton and the AravallieDelhi eVindhyan belt of WI, respectively. Moreover, the depositional model and environment of Paleoproterozoic metasedimentary manganese deposits in NCWI implied that the assembly may be located at low latitudes, where the conditions were favorable for dissolving ice and precipitating manganese deposits.Ó 2015, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

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Geologic setting, genesis and transformation of sulfide deposits in the northern part of Khetri copper belt, Rajasthan, India ? an outline

Cited by 60 publications

References 32 publications

In-situ LA-ICP-MS trace elemental analyses of magnetite: Cu-(Au, Fe) deposits in the Khetri copper belt in Rajasthan Province, NW India

In-situ LA-ICP-MS trace elemental analyses of magnetite: Cu-(Au, Fe) deposits in the Khetri copper belt in Rajasthan Province, NW India

Low Grade Metamorphism in the Lalsot-Bayana Sub-basin of the North Delhi Fold Belt and its Tectonic Implication

Correlations between the North China Craton and the Indian Shield: Constraints from regional metallogeny

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