Where's the reef: The role of framework in the Holocene

Autor:	Ivan P. Gill, Dennis K. Hubbard, Randolph B. Burke
Rok vydání:	1998
Předmět:	geography geography.geographical_feature_category biology Coral Rubble engineering.material biology.organism_classification Mineral resource classification Paleontology Accretion rate Stromatolite Geochemistry and Petrology Facies engineering Reef Geology Holocene
Zdroj:	Carbonates and Evaporites. 13:3-9
ISSN:	1878-5212 0891-2556
DOI:	10.1007/bf03175429
Popis:	Holocene reef models generally emphasize the role of in-place and interlocking framework in the creation of a rigid structure that rises above its surroundings. By extension, a number of ancient biohermal deposits have been disqualified as “true reefs” owing to their lack of recognizable framework. Fifty-four cores from several eastern Caribbean sites (Fig. 1) clearly demonstrate that in-place and interlocking framework is not common in these reefs that are comprised of varying mixtures of recognizable coral (primary framework), loose sediment/rubble and secondary framework made up mostly of coralgal fragments bound together by submarine cementation and biological encrustation. Recovery of primary and secondary framework ranged from 22% (avg.) in branching-coral facies to 33% in intervals dominated by head corals. Accretion rate decreased as expected with water depth. However, the recovery of recognizable coral generally increased with water depth, inversely to presumed coral-growth rates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::023833b3821bfe66c2983003a1050da0 https://doi.org/10.1007/bf03175429 Zobrazit plný text záznamu Full text from SpringerLink