Sarkar, Ashish et al. (1997): Some aspects of Plio/Pleistocene boundary; a case history from DSDP Site 217, southern Bay of Bengal

Leg/Site/Hole:
DSDP 22
DSDP 22 217
Identifier:
1999-037991
georefid
Creator:
Sarkar, Ashish
Indian Institute of Technology, Department of Geology and Geophysics, Kharagpur, India
author
Datta, Saugata
author
Guha, Asik K.
author
Identification:
Some aspects of Plio/Pleistocene boundary; a case history from DSDP Site 217, southern Bay of Bengal
1997
Indian Journal of Marine Sciences
Council of Scientific & Industrial Research, New Delhi, India
26
2
158-161
The planktonic foraminiferal change during Pliocene/Pleistocene transition at DSDP Site 217 (Hole A) have been recorded with reference to relative family abundance; relative species abundance and frequency distribution of total planktonic foraminifera, Globorotalia menardii, Pulleniatina obliquiloculata, Sphaeroidinella dehiscens and Orbulina universa. These, along with the temporal variation in coiling direction of Gr. menardii, Globigerinoides sacculifer, Neogloboquadrina dutertrei and Pu. obliquiloculata; morphometric variation of Gr. menardii and O. universa; and changes in diversity indices viz., S, D, H and E along the depth justify the placement of Plio/Pleistocene boundary at a depth between 23 and 22 m at Site 217 in the southern Bay of Bengal.
English
Serial
Coverage:Geographic coordinates:
North:8.5535
West:90.3219East: 90.3220
South:8.5534
Stratigraphy; Bay of Bengal; biostratigraphy; case studies; Cenozoic; Deep Sea Drilling Project; DSDP Site 217; Foraminifera; Indian Ocean; Invertebrata; Leg 22; lower Pleistocene; Neogene; planktonic taxa; Pleistocene; Pliocene; Protista; Quaternary; species diversity; statistical analysis; stratigraphic boundary; Tertiary; upper Pliocene;
.