Geochemistry of black shales from the Mesoproterozoic Srisailam Formation, Cuddapah basin, India: Implications for provenance, palaeoweathering, tectonics, and timing of Columbia breakup

Basu, Himadri; Dandele, P. S.; Kumar, Kamlesh; Achar, K.K.; Umamaheswar, K.

doi:10.1016/j.chemer.2017.10.002

Cited by 26 publications

(14 citation statements)

References 54 publications

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“…Black shales in Indian Craton are common in the Srisailam Formation in the Cuddapah Basin, the Bijaigarh shale in Kaimur Formation, the Rampur shale in Rohtas Formation, and the Arangi shale in Kajrahat Formation in Son Valley (Banerjee et al, 2006;Basu et al, 2017). The deposition age of the Srisailam Formation has been constrained to be 1,400-1,327 Ma (Basu et al, 2017). A Re-Os isochron age of 1,210 ± 52 with high MSWD value of 69 was reported for black shales from the Kaimur Group (Tripathy & Singh, 2015).…”

Section: Black Shales In Indian Cratonmentioning

confidence: 99%

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

Zhang

Ernst

Pei

et al. 2021

Geophysical Monograph Series

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Recent results on ca. 1,380 Ma LIPs and black shales indicate a temporal link between LIPs and black shales and suggest a potential way for using coeval LIPs and black shales as natural markers for boundaries in the Mesoproterozoic timescale. In this chapter, we provide a brief review of LIPs and black shales during "the Boring Billion" in different cratons. The results show that in addition to the ca. 1,380 Ma LIP activity that is coeval with black shales, other major LIPs during this period can preliminarily be divided into several stages and are likely/possibly contemporaneous with black shales, especially the 1,650-1,620 Ma and ca. 1,100 Ma LIPs. Our results demonstrate that the global-scale LIPs and black shales in the Boring Billion can potentially be used as natural markers for subdivisions of the Proterozoic timescale. The results also suggest that, while the Boring Billion was characterized by suboxic or mildly oxygenated marine basins, it was interrupted by several OAEs that are partly caused by the environmental impact of LIPs. Preliminarily proposed correlation of LIPs and black shales provide a new way to explain the fluctuating evolution of atmosphere, life, and marine basins during the Boring Billion as identified by many recent studies.

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Section: Black Shales In Indian Cratonmentioning

confidence: 99%

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

Zhang

Ernst

Pei

et al. 2021

Geophysical Monograph Series

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“…In the past few decades, the continental crust and near‐surface environment have received significant attention (Bindeman, Bekker, & Zakharov, 2016; Greber & Dauphas, 2019; Lyons et al, 2014; Taylor & McLennan, 1985). The redox state of the oceans and atmosphere through time, source composition of weathered rocks/sediments, tectonic setting, maturity, provenance, weathering history, and palaeoenvironment of the basins have been inferred using fine‐grained terrigenous sediments (Basu et al, 2017; Bhatia & Crook, 1986; Liu et al, 2019; McLennan et al, 1993; Roser & Korsch, 1986; Banerji et al, 2021b). In the present study, the Shimla and Chail meta‐sediments have been investigated to decipher the source area weathering, provenance, and tectonic setting.…”

Section: Discussionmentioning

confidence: 99%

“…Mixing and homogenization of compositionally diverse source rocks due to the combined processes of erosion, transportation, deposition, and diagenesis render Post‐Archean sedimentary rocks with a certain degree of geochemical uniformity (McLennan & Taylor, 1991; Taylor, Rudnick, McLennan, & Eriksson, 1986). However, previous studies (Absar, Raza, Roy, Naqvi, & Roy, 2009; Banerji, Bhushan, Joshi, Shaji, & Jull, 2021a; Basu, Dandele, Kumar, Achar, & Umamaheswar, 2017; Bhat & Ghosh, 2001; El‐Bialy, 2013; McLennan, Hemming, Taylor, & Eriksson, 1995; Shukla, George, & Ray, 2020) have suggested that the geochemical characters of sediments and sedimentary rocks can yield reliable insights into the provenance, prevalent weathering conditions, secondary processes (K‐metasomatism), and tectonic setting of the depositional basin.…”

Section: Introductionmentioning

confidence: 94%

Geochemistry of meta‐sediments from Neoproterozoic Shimla and Chail Groups of Outer Lesser Himalaya: Implications for provenance, tectonic setting, and paleo‐weathering conditions

et al. 2021

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The depositional history of the Himalayas has been overprinted by the tectonic activities during the Himalayan Orogeny. A detailed investigation of the sedimentary units can provide crucial information regarding their depositional history and provenance.This study aims at constraining the weathering history, tectonic setting, and provenance of meta-sediments from the Shimla and Chail Groups of Outer Lesser Himalaya. With similar major element chemistry, these meta-sediments comprise a low-silica group (avg. SiO 2 /Al 2 O 3 <3.29). Weathering intensity parameters chemical index of alteration (CIA), plagioclase index of alteration (PIA) and index of chemical variability (ICV) range from 62 to 78 (avg. = 69.41), 70 to 96 (avg. = 85.34), and 0.45 to 1.45 (avg. = 1.01), respectively indicating moderate to severe degrees of weathering. Transition element ratios [Cr/V (1.68-5.18), Ni/Co (1.47-30.99), and V/Ni (0.87-4.61)], and trace element bivariate plots suggest a recycled, felsic to intermediate provenance that has primarily been derived from Post-Archean sources with minor inputs from Archean units. A passive margin depositional setting with arcderived sources is suggested for the Chail and Shimla meta-sediments. Rare-earth element patterns reveal similarities between the studied metasediments with TTG gneisses and sanukitoids from the Aravalli and Bundelkhand Cratons, as well as Chaur and Jutogh granitoids. Therefore, Neoproterozoic Himalayan granitoids and ArcheanAravalli-Bundelkhand granitoids (TTGs and high-K granitoids) could be potential sources of these meta-sediments, as also suggested by the detrital zircon age distribution from the Beas-Satluj-Pabbar valleys and Shimla Group.

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“…19−22 Although the age of Vindhyan Basin is debatable, sedimentation started at ≥1600 Ma (Lower Vindhyan) and ended around 550 Ma (Upper Vindhyan). 21,22 The Cuddapah Basin shales (n = 39) are from the Vempalle, Cumbum, and Srisailam shale units with depositional ages of 1900−1400 Ma [24][25][26]41 (Figure 2). The Kaladgi-Badami Basin in the Dharwar Craton comprises unmetamorphosed arenite, shale, and carbonate sequences; compiled data represent samples (n = 49) belonging to nine shale units of the Kaladgi Supergroup.…”

Section: Geological Setting and Sample Collectionmentioning

confidence: 99%

Major and Trace Element Characteristics of the Average Indian Post-Archean Shale: Implications for Provenance, Weathering, and Depositional Environment

Ray

Paul

2021

ACS Earth Space Chem.

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We estimate the average chemical composition of Indian post-Archean Shale (IPAS) and conclude that it is comparable to that of global shale standards: post-Archean Australian Shale (PAAS) and North American Shale Composite (NASC). These shales are widely considered as continent wide, average compositional representatives of the post-Archean upper continental crust (UCC). Our IPAS estimate includes compiled literature (n = 444) and newly obtained (23 samples from 16 shale litho-units) data. The average IPAS has a composition comparable to that of the average, finegrained matrix of glacial diamictites (tillite). Compared to a global model of UCC, notable differences in some elements are observed. Our estimated IPAS composition is more comparable to PAAS than NASC, with the latter being distinctly different likely due to having been recently glaciated and significantly resurfaced by the last glaciation, resulting in new shale production starting only about 12,000 years ago. Comparisons between the post-Archean and Archean Indian shales finds the latter with lower ΣREE; smaller negative Eu anomaly; lower Th/Sc, Th/Cr, and Th/U ratios; and higher Sc, V, Cr, Cu, and Zn contents. These findings suggest a greater contribution from mafic sources to Archean shales. A higher chemical index of alteration (CIA = 80 ± 2) for Indian Archean shales, relative to the post-Archean shales (72 ± 3) and UCC (59−65), suggests more intense weathering in the pCO 2 -rich Archean time. Indian shales were mostly deposited in plate interiors or intracratonic basins along a passive margin based on tectonic discrimination diagrams. Our IPAS estimate reflects the average composition of Indian sedimentary rocks and serves as the first step toward estimating the chemical composition of Indian UCC.

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Geochemistry of black shales from the Mesoproterozoic Srisailam Formation, Cuddapah basin, India: Implications for provenance, palaeoweathering, tectonics, and timing of Columbia breakup

Cited by 26 publications

References 54 publications

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

Geochemistry of meta‐sediments from Neoproterozoic Shimla and Chail Groups of Outer Lesser Himalaya: Implications for provenance, tectonic setting, and paleo‐weathering conditions

Major and Trace Element Characteristics of the Average Indian Post-Archean Shale: Implications for Provenance, Weathering, and Depositional Environment

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