Age and duration of the Deccan Traps, India: A review of radiometric and paleomagnetic constraints |
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| Authors: | Kanchan Pande |
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| Institution: | (1) Earth Sciences and Solar System Division, Physical Research Laboratory, Navrangpura, 380 009 Ahmedabad, India |
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| Abstract: | A review of the available radiometric and paleomagnetic data from the Deccan Flood Basalt Province (DFBP) suggests that the
volcanism was episodic in nature and probably continued over an extended duration from 69 Ma to 63 Ma between 31R and 28N.
It is likely that the most intense pulse of volcanism at 66.9 ± 0.2 Ma preceded the Cretaceous Tertiary Boundary (KTB, 65.2
± 0.2Ma) events by R∼1.7Ma. The magnetostratigraphic record in the Deccan lava pile is incomplete and it is therefore possible
that the lava flows constituting the reverse polarity sequence were erupted in more than one reversed magnetic chron. |
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| Keywords: | Deccan volcanism Cretaceous-Tertiary Boundary geochronology magneto-stratigraphy |
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