East-west mafic dyke in Aravallis – a post-depositional event deciphered by aeromagnetic studies

Aravalli fold belt has witnessed major tectonism resulting in intense deformation and associated mafic magmatism. Recently acquired high resolution aeromagnetic data over central Aravalli fold belt brought out a conspicuous E-W trending magnetic anomaly extending for more than 35 km in length cuttin...

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Bibliographic Details
Published inJournal of the Geological Society of India Vol. 89; no. 6; pp. 675 - 678
Main Authors Pathak, A. K., Sridhar, M., Harsha, Y., Markandeyulu, A., Raju, B. V. S. N., Chaturvedi, A. K.
Format Journal Article
LanguageEnglish
Published Springer India Geological Society of India 01.06.2017
Springer Nature B.V
Subjects
Data acquisition
Deformation
Earth and Environmental Science
Earth Sciences
Ecological succession
Folding
Geology
High resolution
Hydrogeology
Length
Magma
Magnetic anomalies
Rock intrusions
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Summary:Aravalli fold belt has witnessed major tectonism resulting in intense deformation and associated mafic magmatism. Recently acquired high resolution aeromagnetic data over central Aravalli fold belt brought out a conspicuous E-W trending magnetic anomaly extending for more than 35 km in length cutting across the whole succession of Aravalli Supergroup. This anomaly on ground is manifested as undeformed basic dyke intruding into metasediments of Aravalli Supergroup. The E-W trend and undeformed nature of these dykes suggest that they represent post Aravalli mafic magmatism which are emplaced sympathetic to the axial plane of F 3 folding.
ISSN:0016-7622
0974-6889
DOI:10.1007/s12594-017-0677-9