Journal of the Marine Biological Association of India

Stereoscan and oxygen isotope studies of some Indian Ocean planktonic foraminifera.

Volume 16 Issue 3

John D H Wiseman, Nicholas J Shackelton and Henry A Buckley

Abstract

Planktonic foraminifera have been examined from 44 plankton tows and 20 sediment samples from the Indian Ocean. The calcification process which thickens the tests has been investigated by means of the Stereoscan scanning electron microscope This nrocess which commences in the surface waters appears to be related to the depth range through which active calcification takes place. A new species of planktonic foraminifera (found in both the plankton hauls and the sediments) is described. The significance of oxygen isotope measurements, on specific species from plankton hauls and sediments, is discussed.

Date : 31-12-1974