Results 61 to 70 of about 2,318 (188)
Los materiales carbonáticos y evaporíticos del techo de la Unidad Intermedia del Mioceno de la Cuenca de Madrid han actuado como soporte de fenómenos de karstificación temprana, cuyo desarrollo ha supuesto un cambio significativo en la evolución del ...
J. C. Cañaveras +3 more
doaj +1 more source
La sedimentación liásica en el sector central del Subbético medio: registro de la evolución de un rift intracontinental [PDF]
Durante el Lias medio tuvo lugar el paso brusco de la sedimenta-ción carbonatada somera a la pelágica en la Zona Subbética, en relación con la evolución de un rift intracontinental.
García Hernández, Manuel +2 more
core +1 more source
Karst: a very diverse concept [PDF]
La gran diversidad intrínseca del karst y la variedad de campos científicos desde los que ha sido estudiado este medio ha generado un espectacular aumento de su conocimiento.
Andreu Rodes, José Miguel +10 more
core +2 more sources
The characteristics of carbonate paleokarst cave and filling have always been the difficulty of characterization and modelling. Based on the seismic, geological and logging data, this paper puts forward the idea of three-level progressive modelling of ...
Wenbiao Zhang +5 more
doaj +1 more source
Ancient karst at the eastern slope of the Middle Urals and the Early-Middle Carboniferous boundary
The paleokarst occurrences associated with Lower Carboniferous limestones in the east of the Middle Urals are considered. We analyse the nature of the Early-Middle Carboniferous boundary.
G. A. Mizens +3 more
doaj +2 more sources
This study describes the direct and indirect effects of mining on the karst of the Bakony Region. For this, the results of geological and mining research of the last century, the results of hydrological research of fifty years, as well as the ...
Márton Veress
doaj +1 more source
Los elementos traza (Mg, Sr, Ha, Fe, Mn) en carbonatos: ambiente genético del Karst del techo de la unidad intermedia de la Cuenca neógena de Madrid. [PDF]
Este trabajo trata de caracterizar geoquímicamente el karst del techo de la U. Intermedia del Mioceno en las partes centrales de la Cuenca de Madrid. Para ello se han estudiado una serie de elementos traza (Mg, Sr, Na, Fe y Mn) mediante fluorescencia de ...
Calvo Sorando, José Pedro +3 more
core
Based on the analysis of deposition and tectonism, “residual thickness method” is used to restore the paleokarst landform of Middle Permian Maokou Formation in northwestern Sichuan Basin.
Dahai TANG +7 more
doaj +1 more source
New biostratigraphic data from the Callovian-Oxfordian La Manga Formation, Neuquén Basin, Argentina: Evidence from an ammonite condensed level [PDF]
The La Manga Formation constitutes most of the sedimentary record of the Callovian-Oxfordian in the Neuquén Basin. This stratigraphic unit represents the middle part of the Lotena Mesosequence, which is dominated by carbonates with interbedded shales ...
Bressan, Graciela Susana +4 more
core
Palaeoenvironmental and diagenetic reconstruction of a closed-lacustrine carbonate system - the challenging marginal setting of the Miocene Ries Crater Lake (Germany) [PDF]
Chemostratigraphic studies on lacustrine sedimentary sequences provide essential insights on past cyclic climatic events, on their repetition and prediction through time.
Abdul Aziz +95 more
core +1 more source

