A multi basin study will be carried out using diatom, pigment and pollen analysis.
Diatom ooze is the characteristic deposit in high southern latitudes.
The largest diatom on the picture measures about 200 microns in diameter.
The dots which are fine markings on the diatom frustule are now clearly seen.
Diatom ooze was recognized by Sir John Murray as the characteristic deposit in high latitudes in the Indian Ocean, and later it was found to be characteristic also of the corresponding parts of the Indian and Pacific covering a total area of about 22,000,000 sq.