Results 181 to 190 of about 6,103 (222)

Trait-dependent diversification and spatio-ecological limits drive angiosperm diversity unevenness across the Canary Islands archipelago

open access: yes
Brewer RF   +23 more
europepmc   +1 more source

Pliocene endorheic-exhoreic drainage transition of the Cenozoic Madrid Basin (Central Spain)

open access: yesGlobal and Planetary Change, 2020
Abstract Late Cenozoic landscape evolution in intracratonic basins represents an illustrative example of the interaction between surface processes, climate, lithologic and tectonics factors. Here, we model the transition from endorheic to exorheic conditions for the intracratonic Madrid Basin (Tagus Basin, Central Spain).
Theodoros Karampaglidis   +2 more
exaly   +4 more sources

Miocene silcretes in argillaceous playa deposits, Madrid Basin, Spain: petrological and geochemical features

open access: yesSedimentology, 2000
Four regressive sequences are present in the opaline rocks and related deposits of the Miocene Intermediate Unit of the Madrid Basin. The sequences consist of silty mudstones and argillaceous opals, separated by transitional facies. The silty mudstone consists mainly of dioctahedral smectites, whereas the argillaceous opal is principally opal‐CT and ...
Bustillo, M.A.   +1 more
exaly   +4 more sources
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The Madrid Basin and the Central System: A tectonostratigraphic analysis from 2D seismic lines

Tectonophysics, 2013
Abstract Data from deep boreholes, seismic surveys, and surface geology are used to reconstruct the sedimentary infilling of the Cenozoic Madrid Basin. Eight main depositional sequences and seismic units are recognised. From the Paleogene, the latter four of these sedimentary sequences were deposited in a continental environment, under the influence ...
G de Vicente, A Muñoz-Martín
exaly   +2 more sources

Structure and Tertiary evolution of the Madrid basin

open access: yes, 1996
The Madrid basin is intracratonic and triangular in form, being bounded on its three sides by Tertiary mountain ranges: the Spanish Central System in the north, the Toledo mountains in the south, and the Iberian and Altomira ranges in the east.
G. De Vicente   +4 more
openaire   +2 more sources

Recharge and salinization in the Madrid Basin

Environmental Geology, 1993
The purpose of this work was to reinvestigate the existing hydrogeological conceptual model of the basin of Madrid, Spain. A cumulative chemical isotopic diagram which enabled the distinction between different groups of water as well as calculation of the mode of their blending was used for this investigation.
A. S. Issar, R. M. Llamas, I. Herraez
openaire   +1 more source

The Madrid Basin aquifer: Preliminary isotopic reconnaissance

Journal of Hydrology, 1981
Abstract Lopez Vera, F., Lerman, J.C. and Muller, A.B., 1981. The Madrid Basin aquifer: preliminary isotopic reconnaissance. In: W. Back and R. Letolle (Guest-Editors), Symposium of Geochemistry of Groundwater —26th International Geological Congress. J. Hydrol., 54: 151ndash;166.
Fernando López Vera   +2 more
openaire   +1 more source

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