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.

West: 90.3219 East: 90.3220 North: 8.5535 South: 8.5534

Expedition: 22

Site: 22-217

Provider: SEDIS Publication Catalogue

Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=1999-037991 (c.f. for more detailed metadata)

This metadata in ISO19139 XML format