Tectonic Significance and Age of Doleritic Sill Near Bandhalimal in the Singhora Protobasin of Chhattisgarh Basin, Central India

Sinha, D. K.; Jain, Sonali; Naganath, Kusum P.

doi:10.1007/978-3-642-12496-9_10

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…Pollard, 1987;Marinoni, 2001and references therein;Sinha et al, 2011) and they are often interpreted as paleostress markers (Purucker and Whaler, 2015 Accordingly, the emplacement of a majority of the NE-SW trending magmatic rock bodies inferred in the present study is likely to have occurred within a NW-SE regional minimum compressive stress field, possibly in the Hauterivian/Barremian -Aptian. That a similar stress field is implied by the dominant trends associated with the magmatic Alpha Ridge suggests that the majority of the magmatic rocks in the present study area may be related to the Alpha Ridge magmatism.…”

Section: Tectonic Implications Of Magmatic Intrusion Trendsmentioning

confidence: 98%

Geological features of the northeastern Canadian Arctic margin revealed from analysis of potential field data

et al. 2016

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Section: Tectonic Implications Of Magmatic Intrusion Trendsmentioning

confidence: 98%

Geological features of the northeastern Canadian Arctic margin revealed from analysis of potential field data

et al. 2016

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“…Although the Bastar Craton is affected by four distinct compositional suites of magma (Srivastava & Gautam 2009;Sinha et al 2011), the overlying Chhattisgarh succession is affected by only one variety -tholeiite with basalt to basaltic andesite affinity. shows an analogous pattern, with both enriched in large ion lithophile elements (LILE) compared with high field strength elements (HFSE).…”

Section: Igneous Inputs Within the Chhattisgarh Successionmentioning

confidence: 99%

Chapter 13 Geology of Mesoproterozoic Chhattisgarh Basin, central India: current status and future goals

Chakraborty

Saha

Das

2015

Memoirs

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In the last two decades multiproxy studies involving process-based sedimentology, geochronology of interbedded tuff units from different stratigraphic levels, sediment geochemistry including stable isotope signatures and documentation of structural grains within selective stratigraphic intervals from the Chhattisgarh Basin, central India have resulted in a perception change on various aspects of the basin fill including its time frame, stratigraphic framework and depositional architecture in the space-time domain. In addition to establishing a Mesoproterozoic (c. 1450-1000 Ma) time frame for the basin on a strong foothold, these studies also proposed revision of its stratigraphy by introducing new stratigraphic units at 'formation' and 'group' level. From collation of available data, their critical evaluation and presentation of new data, the present work proposes a four-tier lithostratigraphy for the Chhattisgarh Supergroup, namely, Singhora Group, Chadarpur Group, Raipur Group and Kharsiya Group. Further, application of sequence stratigraphic rationale allowed the basin succession to be subdivided into four and three nonconformity/unconformity-bound depositional sequences in its eastern and western parts, respectively. The present chapter also highlights the potential of the basin for carrying out studies related to Mesoproterozoic ocean oxygenation and outlines the necessity of well-planned geophysical transects to resolve issues related to tectonic setup of the basin.

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“…Mafic intrusives of different ages and compositions are extensively reported from the southern, central and northern parts of the craton (e.g., Ramachandra et al 1995;Subba Rao et al 2004, 2008aSrivastava 2006;Mondal et al 2007;French et al 2008;Hussain et al 2008;Srivastava and Gautam 2008Ratre et al 2010;Das et al 2011;Srivastava et al 2011;Gautam and Srivastava 2011;Sinha et al 2011;Pisarevsky et al 2013). The intrusives include sub-alkaline mafic dykes i.e., Bastar Dykes 1 (BD1 of ∼2.7 Ga) and Bastar Dykes 2 (BD2 of 1.88-1.89 Ga), boninitenorite dykes (∼2.1 Ga) from the southern part (French et al 2008;Srivastava 2008;Srivastava et al 2011), Bhanupratappur-Keshkal dykes from the central part (Ramachandra et al 1995;Gautam and Srivastava 2011;Srivastava and Gautam 2012) and Dongargarh, Chhura, Lakhna (∼1.44 Ga) and Bandimal (∼1.42 Ga) dykes from the northern part of the craton (Ratre et al 2010;Das et al 2011;Sinha et al 2011;Pisarevsky et al 2013;Srivastava and Gautam 2015).…”

Section: Geological Settingmentioning

confidence: 99%

Petrology and geochemistry of a boninite dyke from the western Bastar craton of central India

2019

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The Dongargarh Supergroup along with the basal Amgaon Gneissic Complex constitutes the northwestern part of the central Indian Bastar craton. In the present study, we report a new finding of a boninite dyke intruded in the Amgaon gneisses of this area. The dyke composed of mainly pyroxenes, amphiboles and subordinate amount of plagioclase. The higher contents of SiO 2 (51-54 wt.%), MgO (12-14 wt.%), Ni (375-473 ppm), Cr (1416-1580 ppm) and very low TiO 2 (0.2-0.4 wt.%) are consistent with the boninite nature of the dyke as well as the unevolved primary nature of the source magma. The extraordinarily high CaO content (15.97-17.7 wt.%) with higher CaO/Al 2 O 3 (3.13-3.96) ratios classifies it as high-Ca boninite. The trace element ratios including Zr/Ti, Ti/V, Ti/Sc and Ti/Yb further show its geochemical similarity with the Archaean boninite. The dyke also shows negative high-field strength element (Nb, Ta and Ti) anomalies which are the characteristics of the boninite rocks reported elsewhere and along with the enriched light rare earth element pattern, it shows more affinity particularly with the northern Bastar boninite dyke. The mineralogical and geochemical similarities of the boninite dykes from the Bastar craton indicate a widespread boninitic event during the Palaeoproterozoic having a similar origin. These boninite dykes indicate the preservation of subduction-related signatures in the lithospheric mantle beneath the Bastar craton at the time of its evolution or may be during the convergence of the Bastar and Bundelkhand cratons.

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Tectonic Significance and Age of Doleritic Sill Near Bandhalimal in the Singhora Protobasin of Chhattisgarh Basin, Central India

Cited by 4 publications

References 12 publications

Geological features of the northeastern Canadian Arctic margin revealed from analysis of potential field data

Geological features of the northeastern Canadian Arctic margin revealed from analysis of potential field data

Chapter 13 Geology of Mesoproterozoic Chhattisgarh Basin, central India: current status and future goals

Petrology and geochemistry of a boninite dyke from the western Bastar craton of central India

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