2024-03-28T14:03:09Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/68932020-05-13T12:33:08Zcom_10261_83com_10261_8col_10261_336
DIGITAL.CSIC
author
Rodríguez, Sergio
author
Moreno-Eiris, Elena
2008-08-25T09:43:43Z
2008-08-25T09:43:43Z
1987
Acta Geológica Hispánica, t. 21-22 (1986-1987), pags. 521-527
1695-6133
http://hdl.handle.net/10261/6893
[ES] Dentro de los sedimentos carbonáticos del Kasimoviense del norte de los Picos de Europa se han distinguido tres litologías distintas, asociadas cada una de ellas a microbiofacies muy características:
- Calizas masivas con algas tubulares y corales solitarios de pequeño tamaño.
- Calizas tableadas y margocalizas bioclásticas con corales solitarios con disepimentos.
- Margas con diversidad de algas y corales solitarios sin disepimentos.OceSe
analizan e interpretan las diferentes facies y su distribución en el área estudiada.
[EN] Carbonate sediments with algae and corals are abundant in the Kasimovian
sequence from Northern Picos de Europa. The lithology
is very variable and it is possible to find conglomerate, sandstone,
marl, limestone, etc. Within the carbonates we distinguish three different
facies with algae and corals:
- Massive limestone with abundant tubular algae which construct
tabular frameworks. They are associated to little horn corals, bryozoans,
brachiopods, and foraminifera.
- Stratified and marly limestone with abundant corals (Geyeronaotia,
Bothrophyllum), oncoids and fragments of bryozoans, brachiopods,
fusulinids, echinoderms, and pelecypods, frequently
encrusted by Girvanella filaments.
- Mar1 with a rich coral fauna (Asserculinia, Lophophyllidiurn,
Lophocarinophyllum, Bradyphyllum, etc.), abundant (Donetzella,
Epimastopora, Hikococodium. Archaeolithophyllum, etc.). Bryozoans,
brachiopods, gastropods, pelecypods and foraminifera are
common too.
These facies are irregularly distributed in the different studied outcrops.
In Covadonga dominate the stratified limestones and massive
lirnestones. In Gamonedo dominate marls and it is possible to find marly limestones too. In Berodia, Arenas and Oceño marly limestones
abound; marls and massive limestones are not rare. In Puentellés the stratigraphical succession is almost totally composed by massive limestones.
This evidence suggests that the paleogeography (and tectonic was very complicated in the studied area during the Kasimovian. There was a double control of facies: Tectonic and geographic. During the
tarios con disepimentos. Lower Kasimovian the tectonic movement were stronger than in the Middle and Upper Kasimovian. In addition the stratigraphic sequence
mentos. suggests that the coast was in Gamonedo, Berodia, Arenas and Oceño nearer than in Puentellés and Covadonga.
spa
openAccess
Carbonatos
Corales
Algas
Kasimoviense
Picos de Europa
Carbonate
Corals
Algae
Kasimovian
Picos de Europa
Microbiofacies de algas y corales de Kasimoviense del norte de los Picos de Europa, N de España
artículo
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URL
https://digital.csic.es/bitstream/10261/6893/1/98108.pdf
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98108.pdf
URL
https://digital.csic.es/bitstream/10261/6893/4/98108.pdf.txt
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98108.pdf.txt