Endolith microborings and their preservation in Holocene-Pleistocene (Bahama-Florida) ooids

Research Article| April 01, 1979 Endolith microborings and their preservation in Holocene-Pleistocene (Bahama-Florida) ooids Paul M. Harris; Paul M. Harris 1Comparative Sedimentology Laboratory, University of Miami, Fisher Island Station, Miami Beach, Florida 33139 Search for other works by this author on: GSW Google Scholar Robert B. Halley; Robert B. Halley 2U.S. Geological Survey, Fisher Island Station, Miami Beach, Florida 33139 Search for other works by this author on: GSW Google Scholar Karen J. Lukas Karen J. Lukas 3Department of Geology and Geography, Vassar College, Poughkeepsie, New York 12601 Search for other works by this author on: GSW Google Scholar Author and Article Information Paul M. Harris 1Comparative Sedimentology Laboratory, University of Miami, Fisher Island Station, Miami Beach, Florida 33139 Robert B. Halley 2U.S. Geological Survey, Fisher Island Station, Miami Beach, Florida 33139 Karen J. Lukas 3Department of Geology and Geography, Vassar College, Poughkeepsie, New York 12601 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1979) 7 (4): 216–220. https://doi.org/10.1130/0091-7613(1979)7<216:EMATPI>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Paul M. Harris, Robert B. Halley, Karen J. Lukas; Endolith microborings and their preservation in Holocene-Pleistocene (Bahama-Florida) ooids. Geology 1979;; 7 (4): 216–220. doi: https://doi.org/10.1130/0091-7613(1979)7<216:EMATPI>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Holocene ooids from Joulters Ooid Shoal (Bahamas) are bored in various ways by blue-green algae that groove along the grain surface, reside just beneath the grain surface, and tunnel extensively a few tens of microns within the grain. The microborings, morphologically distinctive, are documented with scanning electron micrographs of open borings and resin casts. Gentle dissolution of ooid aragonite permits identification of several algal genera by light microscopy and enables comparison with the microboring casts.Pleistocene ooids from the Miami Limestone (Florida) contain natural casts of microborings, some of which are similar in form to Holocene examples. Significantly, these aragonite casts are more resistant to solution than surrounding ooid aragonite. They remain after most of the ooid is leached away and survive replacement of the ooid by low-Mg calcite. Dissolution or precipitation may occur along the walls of microborings, causing morphological alteration during their preservation. This points out a difficulty in the specific identification of endoliths on the basis of fossilized microborings in ancient rocks composed of original aragonite grains. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.