Cretaceous Volcanism in Peninsular India: Rajmahal–Sylhet and Deccan Traps

Kale, Vivek

doi:10.1007/978-3-030-15989-4_8

Cited by 15 publications

(7 citation statements)

References 162 publications

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“…These chemical correlations led to the model of a monocentric eruptive system (north of Nasik) akin to a large shield volcano developed over a plume head (Cox, 1989;. Basic observations on the volcanological aspects of the lavas, which were not given due cognizance in this model, pose severe challenges to this model and the implicit long-distance correlations (see: Gupte et al, 1974;Kale et al, 1992;Deshmukh et al, 1996;Kale, 2020).…”

Section: Volcanologymentioning

confidence: 99%

“…Differences in volumetric rates, streaming v/s pulsed emplacement, cooling and vapour loss governed by local conditions during the lateral transfer of the extruded lava result in these morphological variations. Kale (2020) suggested that these morphologies represent a continuous variation series between two end-members, 'lobate' and 'sheet' flows. This working hypothesis of flow classification is based on the eruptive mechanism and the processes that operate after the lava has been vented from the edifice as elucidated by recent studies of lava emplacement (e.g.…”

Section: Lava Morphologies and Classificationmentioning

confidence: 99%

“…Fig. 9 (modified after Self et al, 1998;Kale, 2020) gives a pictorial representation of how the endogenous transfer of lava in sheet flows can progressively yield the observed morphologies in the DVP. This also assumes that the eruption of the Deccan lavas was a fissure-type eruption, analogous to the Icelandic volcanism (e.g.…”

Section: Eruptive Mechanismmentioning

confidence: 99%

“…Major morphological types recognized in basaltic flows from the DVP (modified after Duraiswami et al, 2014). 'Lobate flows' display the internal structure and geometry of the hummocky and typical pahoehoe, while the 'sheet flows' include all other morphological types according toKale (2020).…”

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confidence: 99%

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Emplacement history and evolution of the Deccan Volcanic Province, India

et al. 2020

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A review of the existing knowledge on the Deccan Volcanic Province of India shows that it has a significant geographic bias towards the western parts, while the rest of the province is not as well constrained. Emerging data on its structure, geochronology and volcanology in the last decade suggests that many existing concepts and models of this large Continental Flood Basalt Province are open to revisions or replacement. The explicit relation between the Deccan volcanism and the Reunion hotspot makes it a unique laboratory for studying magmatic evolution over active hotspots, its upward trajectory through a thick continental crust and the mode and mechanics of eruption and spread of large volumes of lava on continental settings. The temporal relation of the Deccan volcanism with the terminal Cretaceous biotic upheaval has direct bearings on understanding environmental crisis that result from such eruptive events. The impact of this basaltic substrate on the anthropogenic activity of more than 100 million people living on it needs no explanation. A multifaceted and interdisciplinary study with an aim of closing the gaps in its knowledge will facilitate a well-constrained understanding of the characters and robust models of this province in the years to come.

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Section: Volcanologymentioning

confidence: 99%

Section: Lava Morphologies and Classificationmentioning

confidence: 99%

Section: Eruptive Mechanismmentioning

confidence: 99%

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confidence: 99%

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Emplacement history and evolution of the Deccan Volcanic Province, India

et al. 2020

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“…5, since the space limitation did not allow a detailed discussion of each type. It has been demonstrated that most of the morphologies in the DVP can be explained as variations of endogenously emplaced basaltic lava (= pahoehoe-type in the Hawaiian analogy) and represent local conditions and features that developed at the point where the lava cooled (Self et al, 1998;Kesthelyi et al, 1999;Bondre et al, 2000;2004;Bodas and Sen, 2014;Kale, 2020). A normal consequence of this is that lateral variations of morphological types within a single lava flow field are expected and have been recorded from the DVP (Duraiswami et al, 2008(Duraiswami et al, , 2014Sen, 2017;Chatterjee and Dash, 2017).…”

mentioning

confidence: 99%