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Palynological Investigations of Umia Formation of Kutch Basin, Gujarat, vis-a-vis Depositional Environment and Age


 
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1. Title Title of document Palynological Investigations of Umia Formation of Kutch Basin, Gujarat, vis-a-vis Depositional Environment and Age
 
2. Creator Author's name, affiliation, country Sapna Rana; Centre of Advanced Study in Geology, Panjab University, Chandigarh, India
 
2. Creator Author's name, affiliation, country Rekha Rani; Department of Geology, Kurukshetra University, Kurukshetra, Haryana, India
 
2. Creator Author's name, affiliation, country Sandeep Kumar; Geological Survey of India, Eastern Region, Kolkata, West Bengal, India
 
2. Creator Author's name, affiliation, country Thakur O.P.; Department of Geology, Kurukshetra University, Kurukshetra, Haryana, India
 
2. Creator Author's name, affiliation, country Dogra N.N.; Department of Geology, Kurukshetra University, Kurukshetra, Haryana, India
 
3. Subject Discipline(s) Geology
 
3. Subject Keyword(s) Palynology; Umia Formation; Early Cretaceous; Kutch; Gujarat; India
 
3. Subject Subject classification Palynology
 
4. Description Abstract

Mesozoic sedimentary sequence of the Kutch Basin is lithostratigraphically divisible into four formations namely, Patcham Formation, Chari Formation, Katrol Formation and Umia Formation in the ascending stratigraphic order. Two stratigraphic sections viz., Ghuneri Coal Mine Section and Korawadi River Section of Umia Formation were investigated in the present study. The palynological assemblage recovered from the Umia Formation of Kutch Basin comprises 88 species belonging to 48 form genera. Of these, 3 form genera and 9 species are new. These are Venkatapollis indica gen et sp. nov., Aranyasporis cretacea gen. et sp. nov., Pyrgopites mesozoicus gen. et sp. nov., Echninatisporis korawadiensis sp. nov., Concavissimisporites trilobatus sp. nov., Leptolepidites psilatus sp. nov., Cingulatisporites intermedius sp. nov., Taurosporites mesozoicus sp. nov. and Trilobosporites indicus sp. nov. Qualitatively the palynological assemblage of these sections of Umia Formation is dominated by Pteridophytes followed by gymnosperms, bryophytes and fungal spores indicating warm and humid climatic conditions. The age diagnostic palynotaxa such as Crybelosporites, Gabonisporis, Rouseisporites and Aequitriradites which straddle Tithonian-Neocomian time plane are well represented in Bhuj Sections of Umia Formation. The palynotaxa such as Cyathidites, Lycopodiumsporites, Klukisporites, Concavissimisporites, Taurocusporites, Schizisporites and Echinatisporis on the other hand are found to extend even up to the Aptian-Albian time. Hence investigated sediments of the Kutch Basin in all probability are of Early Cretaceous time ranging from Neocomian-Early Aptian.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 2015-09-23
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier http://scientific.cloud-journals.com/index.php/IJAESE/article/view/Sci-292
11. Source Journal/conference title; vol., no. (year) International Journal of Advanced Earth Science and Engineering; Volume 4 (Year 2015)
 
12. Language English=en en
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
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