Story: Sea floor geology

Foraminiferous sediment (2nd of 3)

Foraminiferous sediment

This close-up of sand shows that it is made mainly of tiny shells and small animal plankton known as foraminifers (the round particles). The smaller glass-like fragments are probably quartz grains. Geologists study foraminifers to find out what past conditions in the ocean were like.

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NIWA – National Institute of Water and Atmospheric Research

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How to cite this page:

Keith Lewis, Scott D. Nodder and Lionel Carter, 'Sea floor geology - How sediment forms', Te Ara - the Encyclopedia of New Zealand, (accessed 14 April 2024)

Story by Keith Lewis, Scott D. Nodder and Lionel Carter, published 12 Jun 2006