Record Details

Oxygen isotopic composition of Albian-Turonian foraminifera from Cauvery Basin, India: Evidence of warm sea-surface temperature

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Oxygen isotopic composition of Albian-Turonian foraminifera from Cauvery Basin, India: Evidence of warm sea-surface temperature
 
Creator DAS GUPTA, K
SARASWATI, PK
KRAMAR, U
RAVINDRAN, CN
STUBEN, D
BERNER, Z
 
Subject southeastern india
ocean
tertiary
eocene
record
palaeotemperature
stable isotopes
foraminifera
cretaceous
cauvery basin
tamil nadu
 
Description The clays of Karai Formation (Uttatur Group) contain well-preserved planktonic and benthic foraminifera of Albian-Turonian age. The pristine tests of planktonic and benthic foraminifera were analyzed for their oxygen isotopic compositions. The delta O-18 values of planktonic foraminifera, comprising Whiteinella archaeocretacea, Marginotruncana sp., Rotalipora reicheli, Praeglobotruncana stephani and Globigerinelloides sp. indicate the maximum near-surface temperatures of 29 degrees C. The bottom water temperature, estimated on benthic foraminiferal species Gyroidinoides sp., Quadrimorphina sp., Gavelinella sp., Lenticulina sp. and Pleurostomella sp., is about 21 degrees C. This is in agreement with the palaeoclimatic conditions inferred on fossil assemblages.
 
Publisher GEOLOGICAL SOC INDIA
 
Date 2011-07-30T05:57:21Z
2011-12-26T12:52:41Z
2011-12-27T05:39:27Z
2011-07-30T05:57:21Z
2011-12-26T12:52:41Z
2011-12-27T05:39:27Z
2007
 
Type Article
 
Identifier JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 69(2), 390-396
0016-7622
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7866
http://hdl.handle.net/10054/7866
 
Language en