Geochemical characterization of miocene core sediments from Shahbazpur gas-wells (Bangladesh) in terms of elemental abundances by instrumental neutron activation analysis

Geochemical characterization of Shahbazpur structure (Bengal Foredeep) in terms of elemental abundances obtained from INAA are presented by investigating core samples from Shabazpur gas-field, Bangladesh. Major oxides’ abundances were 12.4–20.8, 0.63–1.03, 4.45–8.02, 0.05–0.09, 2.60–4.10 and 1.31–1....

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2021-07, Vol.329 (1), p.239-252
Main Authors: Begum, Mahbuba, Khan, Rahat, Roy, Dhiman Kumer, Habib, Md. Ahosan, Rashid, Md. Bazlar, Naher, Kamrun, Islam, Mohammad Amirul, Tamim, Umma, Das, Sudeb Chandra, Al Mamun, S. M. Mostafa, Hossain, Syed Mohammod
Format: Article
Language:English
Subjects:
Abundance
Aluminum oxide
Chemical weathering
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Gas fields
Geochemistry
Hadrons
Heavy Ions
Inorganic Chemistry
Isotopes
Neutron activation analysis
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Oxidation
Physical Chemistry
Sediments
Sediments (Geology)
Structural analysis
Tectonics
Tectonics (Geology)
Titanium dioxide
Trace elements
Weathering
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Summary:Geochemical characterization of Shahbazpur structure (Bengal Foredeep) in terms of elemental abundances obtained from INAA are presented by investigating core samples from Shabazpur gas-field, Bangladesh. Major oxides’ abundances were 12.4–20.8, 0.63–1.03, 4.45–8.02, 0.05–0.09, 2.60–4.10 and 1.31–1.87% for Al 2 O 3 , TiO 2 , Fe 2 O 3 (T), MnO, K 2 O and Na 2 O, respectively. Elemental ratios and enrichment pattern (× 1.10–2.11 UCC) indicate that sedimentary processes originated from Himalayan felsic source-rock. Weathering index and Th/U(= 5.90–6.59), V/Cr(= 1.07–1.38) ratios revel that sediments/rocks were experienced moderate to high degree of chemical weathering with oxidizing environment. La-Th-Sc immobile trace elements diagram invoke depositional tectonic settings which was transitional between active and passive continental margin.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-021-07770-4