Carbon and oxygen isotopic variations in peritidal stromatolite cycles, Paleoproterozoic Kajrahat Limestone, Vindhyan basin of central India

Banerjee, Santanu; Bhattacharya, S.; Sarkar, S.

doi:10.1016/j.jseaes.2006.05.006

Cited by 29 publications

(10 citation statements)

References 32 publications

(52 reference statements)

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“…However, the distribution patterns for d 13 C for the lower and upper Vindhyan carbonate show modes at 0 ± 2% and 3 ± 2%, respectively and are consistent with the global average during this time interval (Ray et al 2003). The Kajrahat limestone (stromatolite) belongs to the Semri Group (lower part of the two tired Vindhyan Super group; Bose et al 2001, Rasmussen et al 2002 shows that d 13 C values range from 0.9 to -2.5%, and d 18 O values from -7.9 to -12.8% (Banerjee et al 2007). As the cross plot of all the d 13 C and d 18 C values shows negligible correlation, the stable isotopic compositions of shallowing upward CO 3 cycles reflect alteration by the action of the meteoric waters.…”

Section: Comparison With Other Proterozoic Marine Carbonates Of Indiasupporting

confidence: 78%

“…In India, stable isotope studies of marine carbonates of Proterozoic sequences (primarily from Mesoproterozoic and Neoproterozoic) have been reported from the lesser Himalayan Basin (Aharon et al 1987;Banerjee et al 1997;Kumar and Tewary 1995), the central Indian Vindhyan Basin (Friedman et al 1996;Kumar et al 2002;Ray et al 2003;Banerjee et al 2007), Indravati Basin (Maheshwari et al 2005), Bhima Basin (Nagarajan et al 2008), and also from the Rajasthan area (Banerjee and Majumdar 1999, Pandit et al 2001Sreenivas et al 1998Sreenivas et al , 1999Maheshwari et al 1999). However, no stable isotopic studies are reported from the Proterozoic Cuddapah Basin, the second largest intracratonic basin on Dharwar craton (Ramakrishnan and Vaidyanadhan 2008), India.…”

Section: Introductionmentioning

confidence: 99%

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Carbon and oxygen isotopic variations in stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, Cuddapah Basin, India

Chakrabarti

Shome

Kumar

et al. 2011

Carbonates Evaporites

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The marine stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, of Cuddapah Basin, South India show significantly depleted d 18 O (-8.19 to -18.25%) and d 13 C (-0.03 to -5.74) values and are consistent with the global Proterozoic data. A comparison of the stable isotope values from major localities of Proterozoic Basins of India has also been attempted in this study. Significantly depleted d 18 O values of Vempalle carbonate samples could not be considered to be postdepositional modifications as there exists an inverse correlation relationship between C and O isotopic values. The Vempalle stromatolitic dolomite is likely to be precipitated in equilibrium with marine waters significantly depleted in oxygen isotopes (-10 to -15% SMOW) with respect to modern sea water. The negative d 13 C values of the Vempalle carbonates are likely to be interpreted at the backdrop of global ''icehouse'' as there is an indication of dropstone-like features in the lower part of the Vempalle Formation just 2 km, southwest of the study area.

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Section: Comparison With Other Proterozoic Marine Carbonates Of Indiasupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Carbon and oxygen isotopic variations in stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, Cuddapah Basin, India

Chakrabarti

Shome

Kumar

et al. 2011

Carbonates Evaporites

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“…F presents data for the Marwar Supergroup (~1 km). Data sources of δ 13 C: Friedman et al (1996), Chakraborty et al (2002), Kumar et al (2002), Banerjee et al (2005Banerjee et al ( , 2007, Patranabis-Deb et al (2016), Ansari et al (2018), Gilleaudeau et al (2018), George et al (2018) and this study ( Table 1). The Pb-Pb ages are marked in red, U-Pb zircon ages in green and Sr isotope stratigraphic age in blue.…”

Section: X113mm (300 X 300 Dpi)mentioning

confidence: 99%

Geochemistry of carbonate formations of the Chhattisgarh Supergroup, central India: implications for Mesoproterozoic global events

2019

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The Chhattisgarh Supergroup is one of the major Proterozoic marine sedimentary sequences of India. It consists of largely undeformed and unmetamorphosed siliciclastic, volcaniclastic, and carbonate formations deposited in two sub-basins, Hirri and Bharadwar, separated by an Archean greenstone belt. In spite of its apparent importance for Mesoproterozoic oceanic records, very few geochemical studies have been carried in the basin. Here, we present results of our high resolution geochemical and C–O–Sr isotopic studies in two carbonate formations of the supergroup: the Charmuria and the Chandi. We observe elevated δ13C values increasing from 2.6‰ to 3.6‰ in these formations, which is consistent with the globally reported late Mesoproterozoic values. Such consistently positive δ13C values are attributed to increased organic carbon burial in the basin margins during the deposition of these carbonates. Based on the principles of δ13C isotope stratigraphy, we suggest a depositional age between 1.0 and 1.2 Ga for these carbonates which form the upper part of the supergroup. The lowest 87Sr/86Sr ratios obtained from the Charmuria and Chandi formations, 0.70723 and 0.70816, respectively, are more radiogenic than the contemporaneous seawater, suggesting that the Sr isotopic system of the formations are altered. Based on the similarity in the δ13C values, we stratigraphically correlate the carbonate formations of the Raipur Group in both the Hirri and Bharadwar sub-basins. We also present a compilation of available δ13C and 87Sr/86Sr records from all the Proterozoic sedimentary successions of India and compare it with the global datasets. We find that while the Indian basins possess records of the Bitter Springs and Shuram δ13C anomalies, they lack evidence for the other major global events of the Proterozoic.

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“…The sedimentary sequence of the Vindhyan basin consists of sandstones, shales, and limestones, the characteristic strata for rich fossil assembly. Organic-rich black shales containing microbial mats and stromatolitic limestones are reported to be present within the sedimentary formations of the basin (Banerjee et al, 2007). This is found to be responsible for the presence of hydrocarbons in other Proterozoic basins from different parts of the world (Craig et al, 2012).…”

Section: Geological Frameworkmentioning

confidence: 96%

Common Reflection Surface Stack Imaging of the Proterozoic Chambal Valley Vindhyan Basin and Its Boundary Fault in the Northwest India: Constraints on Crustal Evolution and Basin Formation

et al. 2018

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The Vindhyan basin of northwestern and central India is one of the largest undeformed Meso-Neoproterozoic basins in the world with likely potential of hydrocarbons. Crustal seismic reflection data along a 165-km long Chandli-Bundi-Kota-Kunjer profile of the Chambal Valley Vindhyan basin processed using common reflection surface stack method brought out new crustal features, which were missing in earlier images. A gently dipping structure of the basin is imaged with a maximum of 7.5-km thick Proterozoic sediments, 1.5-km thick volcanic sequence, and the granitic basement at 9.0-km depth. The Great Boundary Thrust, a NW dipping crustal-scale regional tectonic feature outcropping at Bundi, and a new NW dipping reflection band from 9-to 30-km depth, named here as the Chambal thrust, are imaged beneath Bundi-Kota segment. Subduction and collision are responsible for evolution of these thrusts implying horizontal crustal growth. Seismic images of compression on one side and extension on another side along with differences in the Moho characteristics and other constraints from geophysical data around Kota indicate the presence of a new tectonic boundary with a strong lateral discontinuity and strike-slip features. The Moho topography is delineated for the first time revealing a crustal thickness ranging from 40 to 44 km. A 9-to 12-km thick mafic underplating at the lower crust suggests an important postcollisional process indicating vertical crustal growth. Based on the images from the present reflection study, a geodynamic model of the region is suggested in a plate tectonic framework, which may apply to similar Paleoproterozoic collisional areas and associated basin formation.

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Carbon and oxygen isotopic variations in peritidal stromatolite cycles, Paleoproterozoic Kajrahat Limestone, Vindhyan basin of central India

Cited by 29 publications

References 32 publications

Carbon and oxygen isotopic variations in stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, Cuddapah Basin, India

Carbon and oxygen isotopic variations in stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, Cuddapah Basin, India

Geochemistry of carbonate formations of the Chhattisgarh Supergroup, central India: implications for Mesoproterozoic global events

Common Reflection Surface Stack Imaging of the Proterozoic Chambal Valley Vindhyan Basin and Its Boundary Fault in the Northwest India: Constraints on Crustal Evolution and Basin Formation

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