Proterozoic platform sequences of Peninsular India: Implications towards basin evolution and supercontinent assembly

Chakraborty, Prithwish; Dey, Sukanta; Mohanty, S.

doi:10.1016/j.jseaes.2010.04.030

Cited by 69 publications

(29 citation statements)

References 95 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although Evans (2000) speculated that conglomerates within the Penganga Group might be glaciogenic, more thorough study of that region suggests no demonstrable glacial influence, as is evident, for example, in the discussions by Mukhopadhyay & Chaudhuri (2003) and Chakraborty et al (2010). Other Neoproterozoic glaciogenic deposits in southern Asia are listed in Table 7.1.…”

Section: India To Nubiamentioning

confidence: 99%

Chapter 7 Neoproterozoic glacial palaeolatitudes: a global update

Evans

Raub

2011

Memoirs

View full text Add to dashboard Cite

New stratigraphic, geochronological and palaeomagnetic constraints allow updates to be made to a synthesis of Neoproterozoic glacial palaeolatitudes, including modifications to some reliability estimates. The overall pattern of a Neoproterozoic climatic paradox persists: there is an abundance of tropical palaeolatitudes and near to complete absence of glaciogenic deposits demonstrably laid down between latitudes of 608 and 908. In addition to 12 units with palaeolatitude estimates that are somewhat reliable, estimates with moderate to high reliability now include Konnarock (less than 108 from the palaeo-equator), Elatina, Rapitan, Mechum River, Grand Conglomerat (10-208), Upper Tindir, Puga (20-308), Nantuo, Gaskiers (30-408) and Walsh (40-508). Among these, Elatina, Upper Tindir and Nantuo are considered to have the highest reliability, all with estimates of low to moderate palaeolatitude. The Elatina result stems from sedimentary rocks with quantitative correction of inclination-shallowing effects, and the Upper Tindir result stems from data collected from igneous rocks that are precisely coeval with the glacial deposits. Despite continuing debate on the global character of Neoproterozoic ice ages, their pan-glacial extent (ice extending to low latitude in a low-obliquity world) is well demonstrated.

show abstract

Section: India To Nubiamentioning

confidence: 99%

Chapter 7 Neoproterozoic glacial palaeolatitudes: a global update

Evans

Raub

2011

Memoirs

View full text Add to dashboard Cite

show abstract

“…Major and trace element signatures in each case are unique and show the chemical character of the prevailing mantle sources. The Precambrian basin successions of peninsular India experienced different magmatic activities at different stratigraphic levels in the form of basic sills and flows, felsic lavas, ignimbrites, pyroclastic flow and fall deposits, dolerite and kimberlite dykes, and granite plutons that has been recently reviewed by Chakraborty et al (2010) (their table 3 and references therein). Reports of magmatic activity are available in literature from Chhattisgarh and its satellite basins.…”

Section: Introductionmentioning

confidence: 99%

1420 Ma diabasic intrusives from the Mesoproterozoic Singhora Group, Chhattisgarh Supergroup, India: Implications towards non-plume intrusive activity

Das

Chakraborty

et al. 2011

J Earth Syst Sci

Self Cite

View full text Add to dashboard Cite

Besides offering significant clues towards tracking the geochemical evolution of the mantle and architectural reconstruction of different 'supercontinent', geochronological and geochemical appraisal of igneous inputs are also important to bracket the depositional time frame of any lithopackage, particularly, the unfossiliferous sedimentary successions. The present study deals with diabasic intrusive within Mesoproterozoic Saraipalli Formation, which is an argillaceous constituent present at the basal part of nearly 400 m thick four-tiered unmetamorphosed but deformed sedimentary succession of Singhora Group, Chhattisgarh Supergroup, central India. The SE-NW trending intrusive comprises mainly of plagioclase and augite together with minor orthopyroxene, biotite and opaque minerals. Though some plagioclase laths are partially sericitized, the ophitic-to-subophitic texture of the rock is well preserved. Major and trace element geochemical data indicate that this intrusive is basalt-to-basaltic andesite in character and of subalkaline basalt affinity. Multi-element plot shows overall LILE-enrichment and enrichment of Pb and slight depletion of Nb and P, coupled with moderate La/Nb and Th/Nb ratios. Zr, Y and Nb ternary diagrams plot in the fields of within plate basalt. Selected HFSE ratios indicate a non-plume source with crustal assimilation/sediment mixing. Sm-Nd and Rb-Sr isotope data show that the intrusive has Sr initial and Nd initial of 0.709377-0.706672 and 0.510919-0.510815, respectively. Positive ε t Nd [t = 1420 Ma] values (+0.3 to + 2.3) indicate depleted isotopic nature of their protolith. The calculated T DM age is 1.7-1.9 Ga. The mineral-whole rock isochron data (Sm-Nd systematics) of the intrusive implies an emplacement age of ca. 1420 Ma. Considering synchronous terrain boundary shear zone development in Bastar craton on the southeastern part of the Singhora basin, mafic magmatism in Eastern Ghats and large-scale basic intrusion in Sausar mobile belt, a major tectono-thermal event around 1400 Ma is surmised that affected eastern Indian craton. Moreover, geochronology of a bedded porcellanite unit (ca. 1500 Ma) at the base and a discordant basic intrusive (ca. 1420 Ma) allowed a unique opportunity to qualitatively offer an upper bound of time bracket for the deposition of Saraipalli Formation, i.e., ∼80 Ma.

show abstract

“…Unconformably resting above Archaean/Palaeoproterozoic cratons, thick supracrustal successions, often exceeding a couple of kilometres in thickness and made up of nearly undeformed/ mildly deformed and unmetamorphosed quartz -arenite sheets in alternation with siltstone, mudstones, carbonate and volcanics/ volcaniclastics, represent the late Archaean -Proterozoic sedimentary records (Eriksson et al 1998;Chakraborty et al 2010;Meert et al 2010). Proterozoic sedimentary basins of India, traditionally referred to as the 'Purana' basins in Indian stratigraphy, represent classical examples of basins belonging to this category and have attracted sedimentologists and palaeobiologists seeking to understand Proterozoic near-surface processes including sediment -biota interaction.…”

mentioning

confidence: 99%

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

Chakraborty

Saha

Das

2015

Memoirs

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Proterozoic platform sequences of Peninsular India: Implications towards basin evolution and supercontinent assembly

Cited by 69 publications

References 95 publications

Chapter 7 Neoproterozoic glacial palaeolatitudes: a global update

Chapter 7 Neoproterozoic glacial palaeolatitudes: a global update

1420 Ma diabasic intrusives from the Mesoproterozoic Singhora Group, Chhattisgarh Supergroup, India: Implications towards non-plume intrusive activity

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

Contact Info

Product

Resources

About