Interaction of microbial communities with clastic sedimentation during Palaeoproterozoic time — An example from basal Gulcheru Formation, Cuddapah basin, India

Chakrabarti, Gopal; Shome, Debashish

doi:10.1016/j.sedgeo.2010.02.003

Cited by 17 publications

(6 citation statements)

References 33 publications

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“…The facies preserved in the Vempalle Formation can readily be interpreted as a low-gradient stromatolitic ramp, which probably inherited its depositional gradient from the shallow antecedent topography of the Gulcheru siliciclastic shelf (Chakrabarti & Shome 2010). The abrupt lithological transition from underlying siliciclastic strata to predominantly carbonate strata is consistent with rapid sea-level rise and backstepping (potentially combined with regional denudation) of the siliciclastic source region.…”

Section: Vempalle Formationmentioning

confidence: 83%

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Chapter 17 Sedimentation in the Papaghni Group of rocks in the Papaghni sub-basin of the Proterozoic Cuddapah Basin, India

Chakrabarti

Eriksson

Shome

2015

Memoirs

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The Gulcheru Quartzite (30-200 m thick) overlies Archaean basement rocks, and comprises an impersistent conglomerate at the base of more widespread quartzites, with shale and ferruginous interbeds. The overlying Vempalle Formation (1500 m) comprises mainly stromatolitic carbonates, lesser cherts and mudrocks. Together, these two units make up the Palaeoproterozoic Papaghni Group, which displays an arcuate outcrop belt in the SW Cuddapah Basin, bearing no obvious relationship to the tectonic grain in the basement lithologies. Facies defined in the Gulcheru Quartzite are ascribed to initial alluvial fans, which transitioned into a shallow-marine coastline and shelf, as transgression occurred under overall thermal subsidence, possibly related to post-plume thermal relaxation. The shallow siliciclastic Gulcheru shelf is inferred to have evolved to a stromatolitic ramp that accommodated deposition of the Vempalle chemical sediments. The abrupt vertical transition from clastic to carbonate deposits is ascribed to rapid sea-level rise. Late-stage shoreline progradation during uppermost Vempalle times and concomitant clastic inflows terminated the carbonate factory.

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Section: Vempalle Formationmentioning

confidence: 83%

“…Prior to the deposition of Vempalle sediments, a shallow siliciclastic shelf existed represented by alternation of MISS-bearing sandstone and mudstone of the Gulcheru Quartzite (Chakrabarti & Shome 2010). This evolved to a stromatolitic ramp which persisted during the entire deposition of the Vempalle sediments.…”

Section: Vempalle Formationmentioning

confidence: 99%

Chapter 17 Sedimentation in the Papaghni Group of rocks in the Papaghni sub-basin of the Proterozoic Cuddapah Basin, India

Chakrabarti

Eriksson

Shome

2015

Memoirs

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“…31 Apart from this presence of kinneyia ripples and old elepant skin (OES) structures are also reported earlier by Chakrabarti & Shome. 9 The kinneyia ripples show irregular mosaic-like pattern are occasionally associated with wrinkle marks in the heterolithic facies of the Gulcheru Sandstone in the study area. Walls of pits or grooves are steep sided and occur on sandstone or muddy sandstone bed tops or, flat tops between truncated ripple crests.…”

Section: Patchy Ripplesmentioning

confidence: 84%

“…Those activities of benthic prokaryotes in response to the sediment dynamics form characteristic 'microbially induced sedimentary structures (MISS). In the present context a broad description of mat related features is necessary since the Gulcheru Formation occupies a unique place as it preserves the influence of microbial communities on Palaeoproterozoic bio sedimentation 9 and reports for the first time about the presence of different categories of MISS. The MISS of the studied area are classified into two types, i.e., mat growth features and mat destruction features.…”

Section: Microbially Induced Sedimentary Structures (Miss)mentioning

confidence: 99%

Microbial mat Related Features in Palaeoproterozoic Gulcheru Formation and their Role in low Grade Uranium Mineralisation

Goswami¹,

Mukherjee²,

Zakaulla³

et al. 2016

IPCSE

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“…Stromatolites occur within all the carbonate units of the Cuddapah Supergroup and several stromatolite forms have been recorded from the Vempalle and Tadpatri formations, which are the principal stromatolite bearing units (Viswanathiah and Aswathanarayana, 1967;Gururaja and Chandra, 1987). The sedimentary rocks exhibit primary structures like current bedding, ripple marks and mud cracks (Pulla Reddy et al, 1990;Chakrabarti and Shome, 2010).…”

Section: Geology Of the Areamentioning

confidence: 99%

Petrographic Characteristics of the Proterozoic Vempalle Carbonates, Cuddapah Basin, India and their Implications

Mathur

Raj

Balaram

2014

Journal of the Geological Society of India

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The Vempalle Formation of the Proterozoic Cuddapah basin has a well developed sequence of carbonate rocks, which are interbedded with shales, siltstones and chert. The stromatolitic carbonates are conspicuous at many places but the oolitic carbonates are less prominent and are present only in some areas. All the carbonates are pervasively dolomitized. Petrographic examination of these carbonates revealed that they are predominantly made up of fine grained micrite with patchy development of sparite and chert/quartz. The stromatolitic carbonates show distinct banding of alternate carbonate and cherty layers. The latter are rich in organic matter indicating prevalence of profuse biogenic activity. The oolitic carbonates comprise of ooids showing both concentric and radial patterns and made up of carbonate/ chert and cemented by micro/mega quartz or carbonate itself. Diagenetic and post depositional features are reflected in cementation, recrystallization, compaction, stylolite formation and silicification processes. Various stages of cementing material are observed. Secondary vein fillings of carbonate or quartz traverse the carbonate/cherty groundmass. Intraclasts present suggest occasional erosional destruction of associated sediments, short lived transport and local redeposition. Accessory silicate minerals represent terrigenous influx during deposition. Dolomitization of the carbonates was fabric retentive and early diagenetic. The environmental conditions were characterised by low energy, within a shallow water zone, in occasional higher energy events and turbulence. The carbonates appear to have been deposited on a shallow water ramp within a tidal regime.

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Interaction of microbial communities with clastic sedimentation during Palaeoproterozoic time — An example from basal Gulcheru Formation, Cuddapah basin, India

Cited by 17 publications

References 33 publications

Chapter 17 Sedimentation in the Papaghni Group of rocks in the Papaghni sub-basin of the Proterozoic Cuddapah Basin, India

Chapter 17 Sedimentation in the Papaghni Group of rocks in the Papaghni sub-basin of the Proterozoic Cuddapah Basin, India

Microbial mat Related Features in Palaeoproterozoic Gulcheru Formation and their Role in low Grade Uranium Mineralisation

Petrographic Characteristics of the Proterozoic Vempalle Carbonates, Cuddapah Basin, India and their Implications

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