Depositional environment and hydrocarbon potential of marginal marine sediments of Eocene from western India: A palynofacies perspective

Shivanna, Mahesh; Singh, Himanshu

doi:10.1016/j.marpetgeo.2016.03.021

Cited by 11 publications

(3 citation statements)

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“…The formation of rifted basins in response to worldwide tectonic processes resulted in the separation of the Indian Plate from Gondwana crustal elements during the Jurassic and Cretaceous periods. This tectonic process controlled the Phanerozoic geological evolution of sedimentary basins in the west of the Aravalli‐Delhi Fold Belt (ADFB) (Shivanna & Singh, 2016). NW‐SE and NE–SW trending fracture networks have largely governed the growth, history, and geometry of Mesozoic‐Tertiary basins.…”

Section: Discussionmentioning

confidence: 99%

“…Further, clustering of the FMS samples and source rocks (Erinpura granite, Mount Abu granite, Malani rhyolite, average Aravalli Super group, average Delhi Supergroup and average Berach Granite) in the Ti-Zr diagram (Figure8a), La-Th-Sc ternary plot (Figure8b), and Eu/Eu* versus (Gd/Yb) N plot (Figure10), also support such conclusion.5.4 | Tectonic settingThe formation of rifted basins in response to worldwide tectonic processes resulted in the separation of the Indian Plate from Gondwana crustal elements during the Jurassic and Cretaceous periods. This tectonic process controlled the Phanerozoic geological evolution of sedimentary basins in the west of the Aravalli-Delhi Fold Belt (ADFB)(Shivanna & Singh, 2016). NW-SE and NE-SW trending fracture networks have largely governed the growth, history, and geometry of Mesozoic-Tertiary basins.…”

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Petrography and geochemistry of the Middle Jurassic Fort Member Sandstone, Jaisalmer Formation, Western India: Implications for weathering, provenance, and tectonic setting

et al. 2022

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Detrital mineralogy, major oxides, trace, and rare earth elements (REE) were examined in the Middle Jurassic Fort Member Sandstone (FMS) of the Jaisalmer Formation in Western India to understand palaeoweathering, provenance of sediments, and to decipher the tectonic setting. The sandstones are classified as arkose to sub‐litharenite types according to their relative percentages of quartz, feldspar, and lithic fragments, and major elemental ratios. The values of Chemical Index of Alteration (67–85), Plagioclase Index of Alteration (78–97) and Chemical Index of Weathering (83–97) along with A‐CN‐K diagram suggest moderate to intense chemical weathering in the source region. Presence of fresh feldspars and dominance of monocrystalline quartz, showing both parallel and undulose extinction, indicate plutonic and volcanic felsic igneous provenance. Contribution from metamorphic orogen sources is indicated by the lithic fragment population. Various geochemical parameters such as Th/Sc, Cr/Th, Ti/Zr, and Eu/Eu* support a dominant felsic provenance. Higher Zr/Sc ratios relative to the magmatic Zr/Sc‐Th/Sc trend, higher Zr and Hf concentrations in the FMS indicate some extent of sedimentary recycling and zircon sorting. LREE enrichment, flat HREE pattern, negative Eu anomaly and trace element ratios, in conjunction with palaeocurrent data, indicate a likely sediment contribution from basement source terrains including Erinpura‐Mount Abu‐Sirohi granites, Malani Igneous Suite, and Aravalli‐Delhi orogens. The major and trace element tectonic setting discrimination diagrams for the FMS indicate a passive margin setting.

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Section: Discussionmentioning

confidence: 99%

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Petrography and geochemistry of the Middle Jurassic Fort Member Sandstone, Jaisalmer Formation, Western India: Implications for weathering, provenance, and tectonic setting

et al. 2022

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“…The basin is also filled with thick organic-rich succession, including lignite and organic-rich shales (Fig. 3), with major distributions in the Cenozoic successions (Rana et al 2005;Aggarwal et al 2011;Raju and Mathur 2013;Paul and Dutta 2016;Shivanna and Singh 2016;Singh et al 2020). The lignite deposits of the Eocene succession have received unprecedented attention from numerous researchers (Ambwani and Singh 1996;Kar and Sharma 2001;Shukla et al 2014;Singh et al, 2017;Singh and Kumar 2018;Mathews et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Geochemistry and organic petrology of the bituminite shales from the Kapurdi mine, Rajasthan of NW India: implications for waxy oil generation potential

Hakimi

Kumar

Singh

et al. 2022

J Petrol Explor Prod Technol

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This study examines the geochemical and petrographic characteristics of seven bituminite shales from the Kapurdi mine in the Rajasthan, NW India, in order to assess their organic matter inputs and evaluate the oil-prone potentials. These bituminite shale samples exhibit high total organic carbon (TOC) content (up to 45.11 wt.%). The high TOC contents were correlated with low total sulfur content of less than 1 wt.% and suggest that these bituminite shales were deposited in a fresh lacustrine environment. The dominance of such lacustrine environmental setting was confirmed by the presence of the Botryococcus algae. The analyzed bituminite shales are characterized by a bimodal distribution of normal alkanes and relatively low isoprenoid Pr/Ph, Pr/n-C17 and Ph/n-C18 ratios. These characteristics suggest that these bituminite shales contain a blend of organic matter that was derived primarily from algal lacustrine and other aquatic organic matter, with terrigenous land plants and deposited under suboxic to anoxic environmental conditions. Such findings of the organic matter (OM) input and environmental conditions are consistent with mainly Types I and II kerogen and small amounts of Type II/III kerogen, thus yielding both oil and gas prone to higher concentrations of oil generation potential. The dominance of hydrogen-rich kerogen and oil generation potential is in agreement with the findings of high hydrogen index (HI = 240–425 mg HC/g TOC) and H/C atomic ratio of more than 1.20. The abundance of n-alkene and n-alkane doublets in the pyrolysis–gas chromatography (Py–GC) also indicates that these bituminite shales have potential to generate high concentrations of paraffinic waxy oil. Most of the maturity indicators show that the bituminite shales from the Kapurdi mine have not yet entered the main stage of oil generation window, exhibiting a range of immature stages. Therefore, as highlighted in this study, these bituminite shales can be considered as a good candidate for oil shale reoterting processes to release commercial amounts of oil upon using artificial heating techniques such as hydrothermal conversion.

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Paleogene Indian Plate Dynamics and Palaeoclimate: A Review from Palynological Perspective

Verma,

Singh

2024

Society of Earth Scientists Series

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Depositional environment and hydrocarbon potential of marginal marine sediments of Eocene from western India: A palynofacies perspective

Cited by 11 publications

References 14 publications

Petrography and geochemistry of the Middle Jurassic Fort Member Sandstone, Jaisalmer Formation, Western India: Implications for weathering, provenance, and tectonic setting

Petrography and geochemistry of the Middle Jurassic Fort Member Sandstone, Jaisalmer Formation, Western India: Implications for weathering, provenance, and tectonic setting

Geochemistry and organic petrology of the bituminite shales from the Kapurdi mine, Rajasthan of NW India: implications for waxy oil generation potential

Paleogene Indian Plate Dynamics and Palaeoclimate: A Review from Palynological Perspective

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