Provenance, tectonic setting, and source area weathering of Middle Jurassic siliciclastic rocks of Chari Formation, Jumara Dome, Kachchh Basin, Western India: Sedimentological, mineralogical, and geochemical constraints

2019 ◽  
Vol 55 (5) ◽  
pp. 3537-3558 ◽  
Author(s):  
Zuhi Khan ◽  
M.A. Quasim ◽  
Mohd Amir ◽  
A.H.M. Ahmad
Keyword(s):  
Middle Jurassic ◽  
Tectonic Setting ◽  
Source Area ◽  
Western India ◽  
Kachchh Basin ◽  
Siliciclastic Rocks ◽  
Geochemical Constraints

scholarly journals Magnetostratigraphy of the Middle Jurassic Sediments from Kachchh Basin, Western India

2016 ◽  
Vol 07 (03) ◽  
pp. 301-310 ◽  
Author(s):  
Venkateshwarlu Mamilla ◽  
Bindhyachal Pandey ◽  
Deo Brat Pathak ◽  
Papanna Guguloth ◽  
Jai Krishna
Keyword(s):  
Middle Jurassic ◽  
Western India ◽  
Kachchh Basin

scholarly journals Genetic sequence stratigraphy on the basis of ichnology for the Middle Jurassic basin margin succession of Chorar Island (eastern Kachchh Basin, western India)

Geologos ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 31-41
Author(s):  
Jehova L. Darngawn ◽  
Satish J. Patel ◽  
Jaquilin K. Joseph ◽  
Apuva D. Shitole
Keyword(s):  
Middle Jurassic ◽  
Energy Conditions ◽  
Western India ◽  
Sea Level Changes ◽  
Dispersal Patterns ◽  
Accommodation Space ◽  
Kachchh Basin ◽  
Genetic Sequences ◽  
Maximum Flooding Surface ◽  
Basin Margin

Abstract Synrift basin margin successions are greatly influenced by eustatic sea level changes, tectonics and accommodation space filled in by sediments. The Middle Jurassic (Bajocian–Callovian) of Chorar Island (western India) comprises a ~109-m-thick synrift basin margin succession of clastic, non-clastic and mixed siliciclastic-carbonate rocks which are here analysed and categorised into nine lithofacies. The succession is bioturbated to varying intensities; 16 identified ichnogenera can be assigned to environmentally related groups of five trace fossil assemblages, which include Gyrochorte, Hillichnus, Rhizocorallium, Skolithos and Thalassinoides. These ichnoassemblages document the Skolithos and Cruziana Ichnofacies which marks a change in energy conditions, sedimentation dispersal patterns and bathymetry in a shallow-marine environment. The Bajocian–Callovian succession is further analysed on the basis of sedimentological and ichnological data that show two genetic sequences consisting of Transgressive Systems Tract and Highstand Systems Tract bounded by Maximum Flooding Surface. The synrift basin margin succession of the Middle Jurassic of Chorar Island shows cyclicity in deposition; the Bajocian–Bathonian succession represents progradational to retrogradational coastlines, while the Callovian succession documents an aggrading progradational coastline.

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