Results 1 to 10 of about 1,016,504 (237)
Geosciences, 2020 An intra-Vallesian (Upper Miocene) paleokarst developed at the top of the Intermediate Miocene Unit in the continental intracratonic Madrid Basin is recognized.
Juan Carlos Cañaveras +4 more
doaj +4 more sources
Dolomitization and silicification in low-energy lacustrine carbonates (Paleogene, Madrid Basin, Spain) [PDF]
Sedimentary Geology, 2002 Repetitive sequences of carbonate deposits, occurrence include in the lower part of the Paleogene Carbonate Unit (northeast border of the Madrid Basin), have been studied, defining regressive lacustrine sequences and early diagenetic processes.
Bustillo Revuelta, María Ángeles +2 more
semanticscholar +6 more sources
Characteristics of a Mg-palygorskite in Miocene rocks, Madrid Basin (Spain) [PDF]
Clays and Clay Minerals, 2004 AbstractPalygorskite in Miocene mudstones, palustrine limestones and calcretes from the Esquivias locality (Madrid Basin, Spain) has been analyzed by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and analytical electron microscopy to determine its characteristics and chemical composition. Other
García Romero, Emilia +2 more
semanticscholar +5 more sources
Moganite in the Chalcedony Varieties of Continental Cherts (Miocene, Madrid Basin, Spain) [PDF]
Spectroscopy Letters, 2012 Varieties of chalcedony (calcedonite, quartzine, and lutecite) and other optical micro- and cryptocrystalline textures of quartz and opal from Miocene silcretes of the Madrid Basin were studied using a Thermo Fisher DXR Raman microscope. The microscope has a point-and-shoot Raman capability of 1 µm spatial resolution and was coupled with a standard ...
Bustillo Revuelta, María Ángeles +3 more
semanticscholar +6 more sources
The Depositional Record, 2022 This study evaluates variations in petrophysical properties within a mixed alluvial to lacustrine carbonate system (Miocene, Madrid Basin, Central Spain).
John J. G. Reijmer +5 more
doaj +2 more sources
Lethaia, 2021 Altres ajuts: CERCA Programme/Generalitat de Catalunya Altres ajuts: research groups CSIC-64-1538 and CAM-UCM-910607 Carnivoran-dominated fossil sites are scarce in the fossil record but provide precious information on the diversity and ecology of past carnivoran guilds. The Cerro de los Batallones sites host the oldest carnivoran-dominated assemblages,
David M. Martín‐Perea +7 more
semanticscholar +5 more sources
Spatial and Annual Temporal Distribution of Ozone Concentrations in the Madrid Basin Using Passive Samplers [PDF]
The Scientific World Journal, 2001 Passive samplers are useful tools for helping to describe the ozone distribution in complex terrain situations. They are also a good complement to continuous monitoring stations.
M.J. Sanz, F. Sanz, G. Sanchez-Peaa
doaj +3 more sources
Minerals, 2022 Lithofacies belonging to mud-flat and palustrine deposits (lake margin) in the Miocene of the Madrid Basin (Spain) have been studied. Four lithofacies corresponding to mud flat (1 and 3) and palustrine (2 and 4) deposits have been differentiated. Units 1 and 3 consist mainly of mudstones and carbonates (calcretes and diolocretes).
Juan Herranz, Manuel Pozo
openaire +3 more sources
Structural Achitecture of the Madrid Basin from 3D Gravity Inversion [PDF]
Proceedings, 2015 The Madrid Basin is an intraplate Cenozoic basin located in the central area of the Iberian Peninsula. Basement is characterized by a wide range of lithologies, from meta-sediments to granites. Sedimentary section is associated with a carbonatic platform in Cretaceous time and with continental environments during Tertiary. During the second half of the
Olaiz, A.J. +3 more
openaire +3 more sources
Stream mouth deposits in the palaeontological site of Somosaguas, Middle Miocene, Madrid Basin
Spanish Journal of Palaeontology, 2020 The Middle Miocene sediments exposed in Somosaguas contain an excellent record of mammal fossil remains preserved in debris and mudflow deposits. In the sedimentary sequence of Somosaguas three facies associations are distinguished, representing alluvial fan and shallow lake margin environments.
Díez Canseco, Davinia +3 more
openaire +4 more sources