The age of the Nodular Limestone Formation (Late Cretaceous), Narmada Basin, central India

Kumar, Shishir; Pathak, Deo Brat; Pandey, B. P.; Jaitly, Anand K.; Gautam, Jai Prakash

doi:10.1007/s12040-018-1017-1

Cited by 14 publications

(9 citation statements)

References 9 publications

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“…The three-tiered Bagh Group is a mixed siliciclastic-carbonate succession comprising Nimar, Nodular Limestone and Bryozoan Limestone formations from the bottom to the top (Gangopadhyay & Maiti, 2012;Figs 2 and 3a), the age of which was originally assigned as Turonian-Coniacian on the basis of the ammonoid Placenticeratids (Chiplonkar & Ghare, 1976). Recent biostratigraphic investigation constrains Cenomanian, Turonian and Coniacian ages for the Nimar, Nodular Limestone and Bryozoan Limestone formations respectively (Kumar et al 2018).…”

Section: Geological Backgroundmentioning

confidence: 99%

Unusual seawater composition of the Late Cretaceous Tethys imprinted in glauconite of Narmada basin, central India

et al. 2019

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A detailed investigation of a glauconite bed within the Late Cretaceous Bryozoan Limestone Formation of the Bagh Group in central India, as well as the study of existing records, reveals the existence of a ‘glauconitic sea’ along the margins of the Palaeo-Tethys Ocean during the Late Cretaceous Epoch. The authigenic green mineral formed abundantly on shallow seafloors unlike in its modern, deep-sea counterpart. We present an integrated petrographical, geochemical and mineralogical investigation of the glauconite within Late Cretaceous transgressive deposits to highlight its unique geochemistry with moderate Fe2O3 and high Al2O3, SiO2, MgO as well as K2O contents. X-ray diffractional parameters identify the ‘evolved to high evolved’ nature of the glauconite while Mössbauer spectroscopic study reveals the dominance of Fe3+ compared to Fe2+ in the atomic structure. The rare earth elements (REE) pattern of glauconite reveals moderate light-REE/heavy-REE (LREE/HREE) fractionation and weak negative Eu anomaly. The Ce anomaly of the glauconite indicates a sub-oxic diagenetic condition. We propose that Late Cretaceous glauconites formed within a shallow marine depositional setting across the Tethyan belt because of enhanced supply of K, Si, Al, Fe, Mg cations through continental weathering under the extant greenhouse climate.

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Section: Geological Backgroundmentioning

confidence: 99%

Unusual seawater composition of the Late Cretaceous Tethys imprinted in glauconite of Narmada basin, central India

et al. 2019

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“…In the western Narmada Basin of Gujarat, only the monospecific nektobenthic ammonite Placenticeras mintoi was reported in the Nimar Sandstone (Gangopadhyay and Bardhan, 2007;Jaitley and Ajane, 2013). However, by Turonian age, the sea-level transgression reached middle neritic depths in the eastern Narmada Basin of Madhya Pradesh supporting diverse ammonites in the Nodular Limestones (Gangopadhyay and Bardhan, 2007;Kumar et al, 2018).…”

Section: Late Cenomanian-early Turonian Oae2mentioning

confidence: 99%

“…The eastern Bagh Group has been extensively studied based on ammonoids, ostracods, echinoids, bryozoan, marine algae and planktic foraminifera with ages attributed to the Turonian-Coniacian (Jain 1975;Chiplonkar, 1982;Nayak, 1987;. A recent study of ammonites and inoceramids in the Nodular Limestone revealed early, middle and late Turonian deposition (Kumar et al, 2018). These deposits mark the eastward-reach of a sea-level transgression during the Turonian (Tandon, 2000;Tripathi, 2006;Bansal et al, 2020;Kumari et al, 2020) and unconformably overlie the predominantly continental Nimar Sandstone.…”

Section: Introductionmentioning

confidence: 99%

Cenomanian-Turonian sea-level transgression and OAE2 deposition in the Western Narmada Basin, India

et al. 2021

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“…The Lower Cretaceous-Middle Cenomanian Malha Formation is overlain by the latest Middle and Early Late Cenomanian Galala Formation, which represents transgression in the basin concomitant with the Cenomanian eustatic sea-level rise . Abundant Thalassinoides burrows and ammonites of Cenomanian-Early Turonian are recorded from the upper part of the Galala Formation and the Nodular Limestone of the Bagh Group succession Kumar, Pathak, Pandey, Jaitly, & Gautam, 2018). The cross-bedded sandstones intercalated with shales or siltstones of shallow marine facies, oysters, and shallow carbonates at the base marks the onset of Cenomanian transgression, derived from the siliciclastics of the preexisting rocks in the Eastern Desert (Ismail et al, 2009) and in the Narmada Basin.…”

Section: Eastern Desert (Egypt)mentioning

confidence: 99%

Amended lithostratigraphy of the Cretaceous Bagh Group, Western Lower Narmada Valley, India: A comparison with pervasive Tethyan basins

et al. 2021

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The evolution of the Narmada, Saurashtra, and Kachchh basins in the western margin of the Indian Craton is associated with the Middle Jurassic segmentation of Gondwana. The Narmada Basin was evolved during the Early Cretaceous and preserved a thick clastic and non-clastic sequence of the Bagh Group. The succession lies unconformably on the Precambrian rocks, and a complete sequence is exposed in the Western Lower Narmada Valley (WLNV). Until now, it has been described using various informal lithostratigraphic units emphasizing local lithic characters, which have no relevance with the stratotypes and do not fit into the concept of the International Subcommission on Stratigraphic Classification (ISSC). In the present study, the Bagh Group succession is mapped across the Lower Narmada Valley (LNV) and correlated between sections. The units in WLNV were revised and redefined assigning the stratotypes as per the ISSC. The amended lithostratigraphy of the Bagh Group comprises five formations, viz. Songir, Vajepur, Bilthana, Nodular Limestone, and Uchad. The Uchad Formation is a newly recognized youngest unit and is subdivided into the Narmada sandstone and the Men Nadi Limestone members. The lithological and palaeontological evidences indicate that the Bagh Group succession of the WLNV developed in a fluvio-marine environment during the Berriasian? (Neocomian) to Coniacian age. The Cretaceous succession of the WLNV is also compared with the pervasive Tethyan basins, including the Eastern Desert (Egypt), Saurashtra-Kachchh (India), Mahajanga (Madagascar), and Carnarvon (Australia). The Albian-Coniacian lithostratigraphy of the Narmada Basin is comparable to the Eastern Desert, although located at different palaeolatitudes, which suggest similar eustatic and tectonic conditions. It also shows a similar sedimentation pattern compared with the adjoining Saurashtra Basin during the Cenomanian-Coniacian. However, it differs from the Kachchh, Mahajanga, and Carnarvon basins, which can be attributed to different palaeolatitudes, as well as the development of rift-related events. The deposition of the Bagh Group in WLNV terminated with the separation of the Indian Plate from Madagascar and the outpouring of flood basalts during the Coniacian.

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The age of the Nodular Limestone Formation (Late Cretaceous), Narmada Basin, central India

Cited by 14 publications

References 9 publications

Unusual seawater composition of the Late Cretaceous Tethys imprinted in glauconite of Narmada basin, central India

Unusual seawater composition of the Late Cretaceous Tethys imprinted in glauconite of Narmada basin, central India

Cenomanian-Turonian sea-level transgression and OAE2 deposition in the Western Narmada Basin, India

Amended lithostratigraphy of the Cretaceous Bagh Group, Western Lower Narmada Valley, India: A comparison with pervasive Tethyan basins

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