2026-06-27T10:33:06Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/524332024-07-30T16:40:51Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Rodríguez Aranda, Juan Pablo
author
Sanz Montero, María Esther
2023-06-20T12:45:17Z
2023-06-20T12:45:17Z
2006
1576-5172
https://hdl.handle.net/20.500.14352/52433
http://www.sociedadgeologica.es/publicaciones_geotemas.html
This work focuses on the Christmas tree gypsum formation, a Lower Miocene unit cropping out in the eastern part of the Madrid basin. This formation is typically composed by large primary twinned gypsum crystals showing habits which differ from the commonly accepted Mottura's rule. The gypsum occurs interbedded with dolomite facies that have been interpreted to precipitate in relation with microbial mats and endoevaporitic bacteria communities. Thus, elucidating the precise sedimentary, paleogeographic and lithostratigraphic conditions has implications to explain the concurrence of all those peculiarities in the unit. The deposition of the sedimentary sequence took place in mudflat-saline lake complexes controlled by NW-SE strike-slip faults in the basement of the basin. Location of the faults has been determined according to different criteria (e.g. isopach maps and tectonic structures affecting the basin margin). The petrogenetic model of the sedimentary sequence has been integrated in the tectonic and climatic regimes.
spa
Modelo sedimentario y paleogeográfico de un lago salino con presencia de bacterias endoevaporíticas. Mioceno de la Cuenca
de Madrid
journal article
URL
https://docta.ucm.es/bitstreams/b56feb57-af98-4f9c-bbfb-e6a1effcff31/download
File
MD5
418181747275f4ccd8f71d59877c1af4
838785
application/pdf
Páginas desdeGeo_temas_9-7.pdf
URL
https://docta.ucm.es/bitstreams/9e63e2bf-ddb2-48aa-9c6a-a66b6fc00c68/download
File
MD5
92c3fc2fe574e75545fa3fb66e15f744
15988
text/plain
Páginas desdeGeo_temas_9-7.pdf.txt