Next Article in Journal
New Cadanav Methodology for Rock Fall Hazard Zoning Based on 3D Trajectory Modelling
Next Article in Special Issue
Tectono-Sedimentary Cenozoic Evolution of the El Habt and Ouezzane Tectonic Units (External Rif, Morocco)
Previous Article in Journal
Risk Assessment of Rock Falls Released from the Former Quarry Near Spitz (Austria)
Previous Article in Special Issue
Tectono-Sedimentary Evolution of the Cenozoic Basins in the Eastern External Betic Zone (SE Spain)
Article

Tectono-Sedimentary Evolution of the Madrid Basin (Spain) during the Late Miocene: Data from Paleokarst Profiles in Diagenetically-Complex Continental Carbonates

1
Environmental and Earth Science Department, Faculty of Sciences, University of Alicante, Campus San Vicente del Raspeig, E-03690 Alicante, Spain
2
Mineralogy and Petrology Department, Faculty of Geological Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, E-28040 Madrid, Spain
3
Geology Department, MNCN-CSIC, C/José Gutiérrez Abascal, 2, E-28006 Madrid, Spain
*
Author to whom correspondence should be addressed.
Geosciences 2020, 10(11), 433; https://doi.org/10.3390/geosciences10110433
Received: 8 October 2020 / Revised: 26 October 2020 / Accepted: 29 October 2020 / Published: 30 October 2020
(This article belongs to the Special Issue Tectono-Sedimentary Evolution of Cenozoic Basins)
An intra-Vallesian (Upper Miocene) paleokarst developed at the top of the Intermediate Miocene Unit in the continental intracratonic Madrid Basin is recognized. This paleokarst is an early shallow, tabular-shaped karst that shows a marked control by the depositional facies pattern and lithologies. By integrating morphological, petrological, and geochemical data, three hydrogeological zones were established throughout the paleokarstic profiles: (i) a paleo-vadose zone, characterized by vertically elongated caves and vadose cementation; (ii) a 3–7 m thick paleo-epiphreatic zone (paleo-water table fringe), with development of stratiform breccia bodies, the superimposition of both vadose and phreatic features, and the lowest Fe and Mn contents in host-rock carbonates; and (iii) a paleo-phreatic zone characterized by an increase in δ13C values and the predominance of phreatic cementation. The paleogeographic reconstruction for the intra-Vallesian paleokarst using profiles revealed relative topographic highs to the north and topographic lows to the south, drawing the paleokarst landscape. Immediately overlaying the paleokarst surface are fluvio-lacustrine facies belonging to the Miocene Upper Unit (Late Vallesian to Late Turolian). Their lowermost deposits consist of fluvial terrigenous facies deposited by approximately N–S fluvial streams, and pass upward into fluvio-lacustrine fresh-water limestones. This paleokarstic surface represents a major change in the evolution of sedimentary patterns of basin, from endorheic to exorheic conditions, as the result of a change from compressive to extensional conditions in the tectonic regime. View Full-Text
Keywords: paleokarst; dedolomite; meteoric diagenesis; stable isotopes; endorheic-exorheic transition; Miocene; Cenozoic Madrid Basin paleokarst; dedolomite; meteoric diagenesis; stable isotopes; endorheic-exorheic transition; Miocene; Cenozoic Madrid Basin
Show Figures

Figure 1

MDPI and ACS Style

Cañaveras, J.C.; Calvo, J.P.; Ordóñez, S.; Muñoz-Cervera, M.C.; Sánchez-Moral, S. Tectono-Sedimentary Evolution of the Madrid Basin (Spain) during the Late Miocene: Data from Paleokarst Profiles in Diagenetically-Complex Continental Carbonates. Geosciences 2020, 10, 433. https://doi.org/10.3390/geosciences10110433

AMA Style

Cañaveras JC, Calvo JP, Ordóñez S, Muñoz-Cervera MC, Sánchez-Moral S. Tectono-Sedimentary Evolution of the Madrid Basin (Spain) during the Late Miocene: Data from Paleokarst Profiles in Diagenetically-Complex Continental Carbonates. Geosciences. 2020; 10(11):433. https://doi.org/10.3390/geosciences10110433

Chicago/Turabian Style

Cañaveras, Juan C., Jose P. Calvo, Salvador Ordóñez, María C. Muñoz-Cervera, and Sergio Sánchez-Moral. 2020. "Tectono-Sedimentary Evolution of the Madrid Basin (Spain) during the Late Miocene: Data from Paleokarst Profiles in Diagenetically-Complex Continental Carbonates" Geosciences 10, no. 11: 433. https://doi.org/10.3390/geosciences10110433

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop