Late Cambrian deformation in the Lesser Himalaya

Bhargava, O. N.; Frank, Wolfgang; Bertle, R. J.

doi:10.1016/j.jseaes.2010.07.015

Cited by 36 publications

(19 citation statements)

References 38 publications

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“…3). During the Panjal volcanicity, associated with the gondwanaland rifting, the Kashmir sub-basin got sheared to the present site (Bhargava, 2011).…”

Section: Figure 2 Tectonic Models Explaining the Relationship Of Thementioning

confidence: 94%

“…Volcanic sequences in Kashmir, on the other hand, show shallower facies as compared to the Spiti-Zanskar. To explain such a distribution of the facies in space and time, Bhargava (2011) suggested that till early Permian, the Kashmir sub-basin formed lateral extension of the Spiti-Zanskar basin (Fig. 3).…”

Section: Figure 2 Tectonic Models Explaining the Relationship Of Thementioning

confidence: 99%

“…Kashmir in NW and Bhutan in the E. The older Cambrian sediments are present in central part of the Tethyan Himalaya in Zanskar-Spiti and Kinnaur-Garhwal. The Furongian-lower Ordovician Kurgiakh Orogeny (Srikantia et al, 1976), terminated the Cambrian sedimentation and deformed the Cambrian and older sequences (Bhargava et al, 2011). The presence of youngest Cambrian sediments in two extremities and older part in the central part could be either due to the regression being diachronous, commencing in the central part of the basin and progressing towards the extreme corners or due to greater erosion in the central part.…”

Section: Cambrianmentioning

confidence: 99%

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Geological evolution of the Tethys Himalaya

Singh

2020

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Rifting during the late Precambrian created the Tethyan basin in which the sedimentation continued up to Middle Cambrian (Cambrian Series 3). Onset of the late Cambrian-lower Ordovician Kurgiakh orogeny terminated the sedimentation and also deformed the late Precambrian and Cambrian sediments. A shallow marine transgression during the lowermiddle Ordovician resumed the sedimentation with a prominent conglomerate horizon. The conglomerate horizon is absent in the Byans (Kalapani) and Bhutan sectors. The lower Ordovician siliciclastic sediments are succeeded by siliciclastic-algal-coral buildups during the Katian, indicating deepening of the basin; at this juncture the Bhutan and Byans areas too were submerged. There was another subaerial break around the Wenlock, which extended up to the early Devonian. Shallow sea returned in the early-middle Devonian, manifested by the Muth Formation in the western Himalaya. The sea level relatively rose in the Givatian, heralding the siliclastic-carbonate sedimentation that continued upto the Tournaisian. In majority of the areas, there is a hiatus at the end of the Tournaisian. In the distal parts of Spiti-Zanskar sub-basin and Kashmir, however, the sedimentation continued up to Visean/ Serpukhovian. In Spiti-Zanskar, a late Carboniferousearly Permian diamictite horizon is present. The diamictites are assigned glacial origin by many workers. The areas where the sedimentation had ceased during the Tournaisian, witnessed a marine transgression during the Asselian-Sakmarian. It was followedby outpouring of the 289 Ma Panjal Volcanics in parts of Kashmir, Zanskar and Lahaul. The 289 Ma interval represented by abreak between the Sakmarian and the Wuchiapingian sediments in the areas where the Panjal volcanics are absent. The Wuchiapingian transgression was extensive;

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“…3). During the Panjal volcanicity, associated with the gondwanaland rifting, the Kashmir sub-basin got sheared to the present site (Bhargava, 2011).…”

Section: Figure 2 Tectonic Models Explaining the Relationship Of Thementioning

confidence: 94%

Section: Figure 2 Tectonic Models Explaining the Relationship Of Thementioning

confidence: 99%

Section: Cambrianmentioning

confidence: 99%

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Geological evolution of the Tethys Himalaya

Singh

2020

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“…Brookfield (1993), Myrow et al (2003), Hughes et al (2005); Peng et al (2009) and Hughes, (2016) suggested that the Cambrian rocks of the Tethyan and Lesser Himalayan zones were deposited in a continuous margin of the Indian plate, representing distal to proximal facies respectively. However, Bassi (1998), DeCelles et al (2000), Bhargava, (2011), Bhargava et al (2011), Martin (2017) and Singh et al (2019a) favoured two different settings for these zones. Broadly, the so far studied intervals of the Cambrian period in THZ and LHZ are:~512-505 (in Spiti), ~506-498 (in Zanskar) and 541-512 Ma (in Nigalidhar and Mussoorie synclines).…”

Section: Cambrian Depositional Environmentmentioning

confidence: 98%

“…The Cambrian sequences in the LHZ have been considered proximal equivalent of the THZ (Brookfield, 1993;Searle, 1986;Myrow et al, 2003Myrow et al, , 2006aMyrow et al, , 2006bHughes et al, 2005Hughes et al, , 2018Hughes, 2016). However, on the other hand, Saxena (1971), Bhargava et al ( , 2011, DeCelles et al (2000); Bhargava (2008Bhargava ( , 2011, Martin (2017), andSingh et al (2019a) have suggested two different settings for the deposition of the Cambrian sequences in the LHZ and THZ.…”

Section: Cambrian Depositional Environmentmentioning

confidence: 99%

Cambrian of the Himalaya and the Peninsular India-Biozonation, Depositional Environments and Biogeographic Provinces

Bhargava

2020

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In the Indian Himalaya, the Cambrian sequences are exposed in the Lesser and Tethyan Himalayan zones (LHZ and THZ). In the LHZ, the Cambrian biozonation is available at four stratigraphic intervals, i.e., at ~542-535 Ma, ~524-513 Ma, ~516 Ma, and ~512 Ma. In the THZ, the Cambrian biozonation exists broadly at two stratigraphic intervals, i.e., ~514-505 Ma (in the Spiti region and partially in the Kashmir region) and ~505-498 Ma (in the Zanskar region and partially in the Kashmir region). The Indian Cambrian faunal elements share Gondwanan and peri-gondwanan affinities. The depositional environments of the Cambrian sediments of THZ and LHZ show a wide array of settings. Cambrian of the Himalaya and the Peninsular India In the Paleozoic succession of the Indian Himalaya, the Cambrian sequences, volumetrically form the most abundant rocks (Wadia, 1975; Brookfield, 1993). The Cambrian sequences occurs in two broad lithotectonic zones (i) the LHZ framed by the Main Boundary Thrust (MBT) in the south and the Main Central Thrust (MCT) in the north and, (ii) the THZ bounded by the Vaikrita Group rocks with tectonic / non-conformable contact with the Greater Himalayan Zone (GHZ) in the south and the Indus-Tsangpo Suture Zone (ITSZ) in the north. The Cambrian sequences within each zone are classified according to the structural/topographic basin in which they occur. Myrow et al. (2009) suggested that the Greater Himalayan Zone (GHZ) also includes deformed Cambrian sedimentary rocks in its central part-a contention yet to be proved. Rocks of the Cambrian age are also known from the craton of the peninsular part of the Indian plate i.e., the Bikaner-Nagaur region of the Rajasthan basin (

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Records of Himalayan Metamorphism and Contractional Tectonics in the Central Himalayas (Darondi Khola, Nepal)

Catlos

2023

Compressional Tectonics

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Late Cambrian deformation in the Lesser Himalaya

Cited by 36 publications

References 38 publications

Geological evolution of the Tethys Himalaya

Geological evolution of the Tethys Himalaya

Cambrian of the Himalaya and the Peninsular India-Biozonation, Depositional Environments and Biogeographic Provinces

Records of Himalayan Metamorphism and Contractional Tectonics in the Central Himalayas (Darondi Khola, Nepal)

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