Internal structure of segment reefs: Halimeda algal mounds in the Mediterranean Miocene

Research Article| January 01, 1996 Internal structure of segment reefs: Halimeda algal mounds in the Mediterranean Miocene Juan C. Braga; Juan C. Braga 1Departamento de Estratigrafía y Paleontología, Universidad de Granada, Campus de Fuentenueva, 18002 Granada, Spain Search for other works by this author on: GSW Google Scholar José M. Martín; José M. Martín 1Departamento de Estratigrafía y Paleontología, Universidad de Granada, Campus de Fuentenueva, 18002 Granada, Spain Search for other works by this author on: GSW Google Scholar Robert Riding Robert Riding 2Department of Earth Sciences, University of Wales, Cardiff CF1 3YE, United Kingdom Search for other works by this author on: GSW Google Scholar Geology (1996) 24 (1): 35–38. https://doi.org/10.1130/0091-7613(1996)024<0035:ISOSRH>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Juan C. Braga, José M. Martín, Robert Riding; Internal structure of segment reefs: Halimeda algal mounds in the Mediterranean Miocene. Geology 1996;; 24 (1): 35–38. doi: https://doi.org/10.1130/0091-7613(1996)024<0035:ISOSRH>2.3.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 Halimeda reefs in the upper Miocene strata (∼6 Ma) of the Sorbas basin, southeastern Spain, shed light on the internal structure of more extensive but less accessible Holocene counterparts, and challenge conventional reef concepts. Coarse discoid segments, released by Halimeda during life or immediately after death, dominate the lenslike mounds. Their chaotic, loose appearance disguises the reefal nature of the mounds. Segments, accumulating at or very close to sites of growth, were quickly stabilized by microbial and cement crusts that bound them into distinctive rigid gravel fabrics. This early lithification generated relief but inhibited off-mound export of sediment, although large blocks detached locally and moved downslope. Encrustation of parautochthonous Halimeda gravel created a unique reef type: segment reefs. This content is PDF only. Please click on the PDF icon to access. 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.