Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis
Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding...
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| Autor*in: |
Singh, Y. Raghumani [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Carbonates and evaporites - Springer Berlin Heidelberg, 1986, 38(2023), 2 vom: 09. Feb. |
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| Übergeordnetes Werk: |
volume:38 ; year:2023 ; number:2 ; day:09 ; month:02 |
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| DOI / URN: |
10.1007/s13146-023-00849-x |
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OLC2133867597 |
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| 520 | |a Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. | ||
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10.1007/s13146-023-00849-x doi (DE-627)OLC2133867597 (DE-He213)s13146-023-00849-x-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn Singh, Y. Raghumani verfasserin aut Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis 2023 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. Garampani limestone Petrography Ramp environment Stable isotope Warmer climate Devi, Kh. Radhapiyari aut Abbott, Mark B. aut Singh, T. Lucky aut Tongbram, Guneshwar aut Singh, Ningthoujam Surdas aut Enthalten in Carbonates and evaporites Springer Berlin Heidelberg, 1986 38(2023), 2 vom: 09. Feb. (DE-627)165666978 (DE-600)1037732-3 (DE-576)09095369X 0891-2556 nnns volume:38 year:2023 number:2 day:09 month:02 https://doi.org/10.1007/s13146-023-00849-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 38 2023 2 09 02 |
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10.1007/s13146-023-00849-x doi (DE-627)OLC2133867597 (DE-He213)s13146-023-00849-x-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn Singh, Y. Raghumani verfasserin aut Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis 2023 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. Garampani limestone Petrography Ramp environment Stable isotope Warmer climate Devi, Kh. Radhapiyari aut Abbott, Mark B. aut Singh, T. Lucky aut Tongbram, Guneshwar aut Singh, Ningthoujam Surdas aut Enthalten in Carbonates and evaporites Springer Berlin Heidelberg, 1986 38(2023), 2 vom: 09. Feb. (DE-627)165666978 (DE-600)1037732-3 (DE-576)09095369X 0891-2556 nnns volume:38 year:2023 number:2 day:09 month:02 https://doi.org/10.1007/s13146-023-00849-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 38 2023 2 09 02 |
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10.1007/s13146-023-00849-x doi (DE-627)OLC2133867597 (DE-He213)s13146-023-00849-x-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn Singh, Y. Raghumani verfasserin aut Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis 2023 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. Garampani limestone Petrography Ramp environment Stable isotope Warmer climate Devi, Kh. Radhapiyari aut Abbott, Mark B. aut Singh, T. Lucky aut Tongbram, Guneshwar aut Singh, Ningthoujam Surdas aut Enthalten in Carbonates and evaporites Springer Berlin Heidelberg, 1986 38(2023), 2 vom: 09. Feb. (DE-627)165666978 (DE-600)1037732-3 (DE-576)09095369X 0891-2556 nnns volume:38 year:2023 number:2 day:09 month:02 https://doi.org/10.1007/s13146-023-00849-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 38 2023 2 09 02 |
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10.1007/s13146-023-00849-x doi (DE-627)OLC2133867597 (DE-He213)s13146-023-00849-x-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn Singh, Y. Raghumani verfasserin aut Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis 2023 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. Garampani limestone Petrography Ramp environment Stable isotope Warmer climate Devi, Kh. Radhapiyari aut Abbott, Mark B. aut Singh, T. Lucky aut Tongbram, Guneshwar aut Singh, Ningthoujam Surdas aut Enthalten in Carbonates and evaporites Springer Berlin Heidelberg, 1986 38(2023), 2 vom: 09. Feb. (DE-627)165666978 (DE-600)1037732-3 (DE-576)09095369X 0891-2556 nnns volume:38 year:2023 number:2 day:09 month:02 https://doi.org/10.1007/s13146-023-00849-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 38 2023 2 09 02 |
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10.1007/s13146-023-00849-x doi (DE-627)OLC2133867597 (DE-He213)s13146-023-00849-x-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn Singh, Y. Raghumani verfasserin aut Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis 2023 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. Garampani limestone Petrography Ramp environment Stable isotope Warmer climate Devi, Kh. Radhapiyari aut Abbott, Mark B. aut Singh, T. Lucky aut Tongbram, Guneshwar aut Singh, Ningthoujam Surdas aut Enthalten in Carbonates and evaporites Springer Berlin Heidelberg, 1986 38(2023), 2 vom: 09. Feb. (DE-627)165666978 (DE-600)1037732-3 (DE-576)09095369X 0891-2556 nnns volume:38 year:2023 number:2 day:09 month:02 https://doi.org/10.1007/s13146-023-00849-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 38 2023 2 09 02 |
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Singh, Y. Raghumani @@aut@@ Devi, Kh. Radhapiyari @@aut@@ Abbott, Mark B. @@aut@@ Singh, T. Lucky @@aut@@ Tongbram, Guneshwar @@aut@@ Singh, Ningthoujam Surdas @@aut@@ |
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Petrography and stable isotope geochemistry of Middle Eocene Garampani limestone (Assam), India: implications for the depositional environment and diagenesis |
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Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Abstract Petrography and stable isotopic (carbon and oxygen) studies of the Middle Eocene Garampani limestone from Jamunagar limestone quarry of the Umrangso area, North Cachar Assam, were carried out to determine the environment of deposition and the level of diagenesis to improve our understanding of the climate at the time of its formation. The major petrographic types documented here include wackestone, packstone, and grainstone which fall into the type I and II categories of the triangular classification scheme indicating formation in a short-lived, high-energy environment that was dissipating at the time of deposition. The samples have a distinct signature that includes extensive diagenesis with varying intensities of compaction, recrystallization, pressure solution, and neomorphism. In occurrences of stratigraphically significant foraminiferal assemblages and palynofossils, the Garampani Limestone is assigned Middle Eocene age. Most of the samples produced positive $ δ^{13} $C ‰ ranging from 1.64 to 0.76 ‰ (PDB) and correlated with a transgressive phase. The negative $ δ^{18} $O values range from −6.25 to −4.67 ‰ (PDB) suggesting that the Middle Eocene was generally characterized by a warmer climate. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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