Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India

Palaeoproterozoic Noamundi – Koira Basin (NKB), on the western margin of the >3.0 Ga old Singhbhum Granitoid Complex, forms a horseshoe-shaped synclinorium. Volcanic rocks belonging to Bonai volcanic suite (BVS) occur outside and all-around the NKB that consists of three distinct but conformable...

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Autores principales:	Shabber H. Alvi, Mohd. Shaif
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	paleoproterozoic bhq/bhj mn-ore bodies hydrothermal singhbhum Ecology QH540-549.5 Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/0aef44cd415f4ce4ae79def30d6e8ccb
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spelling	oai:doaj.org-article:0aef44cd415f4ce4ae79def30d6e8ccb2021-11-26T11:19:50ZGeochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India2474-950810.1080/24749508.2020.1720489https://doaj.org/article/0aef44cd415f4ce4ae79def30d6e8ccb2021-10-01T00:00:00Zhttp://dx.doi.org/10.1080/24749508.2020.1720489https://doaj.org/toc/2474-9508Palaeoproterozoic Noamundi – Koira Basin (NKB), on the western margin of the >3.0 Ga old Singhbhum Granitoid Complex, forms a horseshoe-shaped synclinorium. Volcanic rocks belonging to Bonai volcanic suite (BVS) occur outside and all-around the NKB that consists of three distinct but conformable stratigraphic units viz; Lower Shale Formation, Middle Banded Hematite Quartzite (BHQ) and/or Banded Hematite Jasper (BHJ) and Upper Shale Formation. The layered, lensoid, lateritoid, and vein type Mn-ore bodies are associated with the Upper Shale Formation. Compositions of the Mn ores widely variable values, SiO2 (1.00%- 16.40%), Al2O3 (1.62%-17.20%), Fe2O3 (10.55%-63.28%), MnO (31.75% −75.72%), Ni (25–260 ppm), Co (78–350 ppm), Zn (82–509 ppm) and Cr (13–187 ppm) clearly reflect their submarine hydrothermal source. Litho-stratigraphic considerations also lead to suggest that BHJ/BHQ and Mn-ore deposits of NKB are genetically related to the BVS. It is suggested that manganese and iron ores were deposited in a (? Forearc) basin associated with the mature island arc or active continental margin setting. FeO and MnO were added to the basin by hydrothermal solutes produced during the Bonai volcanism. BHQ/BHJ precipitation took place under a low redox potential while Mn-ore deposition is a consequence of the high redox potential.Shabber H. AlviMohd. ShaifTaylor & Francis Grouparticlepaleoproterozoicbhq/bhjmn-ore bodieshydrothermalsinghbhumEcologyQH540-549.5GeologyQE1-996.5ENGeology, Ecology, and Landscapes, Vol 5, Iss 4, Pp 260-268 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	paleoproterozoic bhq/bhj mn-ore bodies hydrothermal singhbhum Ecology QH540-549.5 Geology QE1-996.5
spellingShingle	paleoproterozoic bhq/bhj mn-ore bodies hydrothermal singhbhum Ecology QH540-549.5 Geology QE1-996.5 Shabber H. Alvi Mohd. Shaif Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
description	Palaeoproterozoic Noamundi – Koira Basin (NKB), on the western margin of the >3.0 Ga old Singhbhum Granitoid Complex, forms a horseshoe-shaped synclinorium. Volcanic rocks belonging to Bonai volcanic suite (BVS) occur outside and all-around the NKB that consists of three distinct but conformable stratigraphic units viz; Lower Shale Formation, Middle Banded Hematite Quartzite (BHQ) and/or Banded Hematite Jasper (BHJ) and Upper Shale Formation. The layered, lensoid, lateritoid, and vein type Mn-ore bodies are associated with the Upper Shale Formation. Compositions of the Mn ores widely variable values, SiO2 (1.00%- 16.40%), Al2O3 (1.62%-17.20%), Fe2O3 (10.55%-63.28%), MnO (31.75% −75.72%), Ni (25–260 ppm), Co (78–350 ppm), Zn (82–509 ppm) and Cr (13–187 ppm) clearly reflect their submarine hydrothermal source. Litho-stratigraphic considerations also lead to suggest that BHJ/BHQ and Mn-ore deposits of NKB are genetically related to the BVS. It is suggested that manganese and iron ores were deposited in a (? Forearc) basin associated with the mature island arc or active continental margin setting. FeO and MnO were added to the basin by hydrothermal solutes produced during the Bonai volcanism. BHQ/BHJ precipitation took place under a low redox potential while Mn-ore deposition is a consequence of the high redox potential.
format	article
author	Shabber H. Alvi Mohd. Shaif
author_facet	Shabber H. Alvi Mohd. Shaif
author_sort	Shabber H. Alvi
title	Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
title_short	Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
title_full	Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
title_fullStr	Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
title_full_unstemmed	Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India
title_sort	geochemical signatures of manganese ores around barbil, noamundi-koira basin, singhbhum craton, eastern india
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/0aef44cd415f4ce4ae79def30d6e8ccb
work_keys_str_mv	AT shabberhalvi geochemicalsignaturesofmanganeseoresaroundbarbilnoamundikoirabasinsinghbhumcratoneasternindia AT mohdshaif geochemicalsignaturesofmanganeseoresaroundbarbilnoamundikoirabasinsinghbhumcratoneasternindia
_version_	1718409451006853120

Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India

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