Sedimentología y diagénesis de las secuencias lacustres someras en el área del yacimiento neolítico de Casa Montero (Vicálvaro, Madrid)
The sedimentary succession at Casa Montero flint archaeological site belongs to the green-clays unit of the Intermediate Unit of the Madrid Basin. A succession of silt-clay (mainly Mg-smectites), dolomite and silica rocks has been studied to know the sedimentary environment and diagene- tic processe...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2005 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | español |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/52567 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/52567 |
| Access Level: | acceso abierto |
| Palabra clave: | 551.3.051 Madrid Basin Miocene Palustrine Dolomitization Mg-smectites Silicification Archaelogical site Geodinámica 2507 Geofísica |
| Sumario: | The sedimentary succession at Casa Montero flint archaeological site belongs to the green-clays unit of the Intermediate Unit of the Madrid Basin. A succession of silt-clay (mainly Mg-smectites), dolomite and silica rocks has been studied to know the sedimentary environment and diagene- tic processes around the site. The succession consists of silt-clay and carbonate sequences that represent a lacustrine environment with subaerial exposure events. The exposition events led to the development of a enlarged pseudomicrokarst in the topmost carbonate level. Vertisols were reworked at the top of the sequence. The diagenetic processes include early dolomitization of palustrine carbonates, partial transformation of the Mg-smectites and silicification of carbonates and clays in a groundwater environment. The presence of the archaeological site is due to the presence of opaline cherts with "aging" to quartz, that are uncommon in the silt-clay sequences of the Madrid Basin. The "aging" give these flints optimum properties for the Neolithic industry. |
|---|