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EnglishNumerous studies have been carried out on microbialite/metazoan associations and their relative role in forming bioconstructions. It has often been suggested that microbial carbonate acts as stabilizing element of the primary skeletal framework. Here we describe unusual bioconstruction occurring in submerged marine caves. They are randomly distributed within the caves, and show different sizes and morphologies, as well as surface roughness/smoothness. These bioconstructions, named biostalactites, are constituted by a few cm-thick crust of serpulids and other metazoans associated with carbonate micrites. All the identified sessile faunas largely consist of cryptic and sciaphilic organisms indicating cave conditions. Biostalactites are the result of the interaction between metazoans and microbial activity. Their distinctive vertical or oblique downward growth from the ceiling and walls of the caves reflects the skeletal/microbial relationship. The skeletal framework produced mainly by serpulids is syndepositionally stabilized by autochthonous microbial induced micrite.
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| Titolo: | Submarine caves: A laboratory for geomicrobiology studies. | |
| Autori: | ||
| Data di pubblicazione: | 2016 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.11770/135326 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/20.500.11770/135326
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