Mössbauer Spectroscopic Study of Phosphatic Sediments Collected from Fatehgarh Formation of Northern Barmer Basin, Western Rajasthan

A unique thin ferruginous layer sandwiched between phosphatic sediments of the Fatehgarh Formation representing northern periphery of the Barmer basin, India. Magnetic separation of this layer yielded presence of magnetic glassy spherules of millimeter size. In the present investigation, Mössbauer a...

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Bibliographic Details
Published in:Journal of the Geological Society of India 2019-12, Vol.94 (6), p.590-594
Main Authors: Mathur, Sonal, Tripathi, R. P., Mathur, S. C., Mathur, Saurabh
Format: Article
Language:English
Subjects:
Cretaceous
Earth and Environmental Science
Earth Sciences
Geology
Hydrogeology
Magnetic separation
Research Article
Sediment
Sediments
Spherules
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Summary:A unique thin ferruginous layer sandwiched between phosphatic sediments of the Fatehgarh Formation representing northern periphery of the Barmer basin, India. Magnetic separation of this layer yielded presence of magnetic glassy spherules of millimeter size. In the present investigation, Mössbauer and XRD study of twelve phosphatic sediments including ferruginous layer of Fatehgarh Formation was carried out. For the first time, a very unusual and complex pattern of Mössbauer parameters attributed to an unusual thermal history in late Cretaceous phosphatic sediments of the Barmer basin has been shown.
ISSN:0016-7622
0974-6889
DOI:10.1007/s12594-019-1365-8