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Title: Sipunculid Burrows in Coral Reefs: Evidence for Chemical and Mechanical Excavation 
Author: Williams, J.A.; Margolis, S.V.
Date: 1974-10
Publisher: University of Hawai'i Press
Citation: Williams JA, Margolis SV. 1974. Sipunculid burrows in coral reefs: evidence for chemical and mechanical excavation. Pac Sci 28(4): 357-359.
Abstract: The crystalline structure of sipunculid burrow linings from dead
coral as studied with the scanning electron microscope indicates the presence of
etching similar to that produced by treatment of unmodified coral surfaces with
acid, and with EDTA. Initial biochemical activity appears to weaken intercrystalline
bonds, permitting detachment of crystals by mechanical abrasion and
subsequent deposition of their fragments in spaces between corallite walls.
ISSN: 0030-8870

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