AR-40-AR-39 AGES OF ANJAR TRAPS, WESTERN DECCAN PROVINCE (INDIA) AND ITS RELATION TO THE CRETACEOUS-TERTIARY BOUNDARY EVENTS

Authors
VENKATESAN TR PANDE K GHEVARIYA ZG
Citation
Tr. Venkatesan et al., AR-40-AR-39 AGES OF ANJAR TRAPS, WESTERN DECCAN PROVINCE (INDIA) AND ITS RELATION TO THE CRETACEOUS-TERTIARY BOUNDARY EVENTS, Current Science, 70(11), 1996, pp. 990-996
Citations number
25
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Current Science → ACNP
ISSN journal
00113891
Volume
70
Issue
11
Year of publication
1996
Pages
990 - 996
Database
ISI
SICI code
0011-3891(1996)70:11<990:AAOATW>2.0.ZU;2-7
Abstract
Ar-40-Ar-39 ages of whole rock basalt samples from the lava flows sand wiching the Ir-rich intertrappean at Anjar are indistinguishable from the Cretaceous/Tertiary Boundary (KTB) age. These results imply that t he Ir-rich layer represents the KTB boundary layer. The presence of se veral flows below the lower dated flow supports our earlier observatio n(1), based on the geochronological studies of Western Ghat lava flow sequence, that the initiation of the Deccan volcanism predated KTB.