Dinàmica de la Terra i de l'Oceà: Envíos recientes
Mostrando ítems 81-100 de 1037
Geodynamical framework and hydrocarbon plays of a salt giant: the North Western Mediterranean Basin
The North Western Mediterranean Basin developed during the Oligocene-Miocene rifting of the Eastern Iberian-European magma-poor continental margin. The margin developed as a result of back-arc extension associated with the ...
Cretaceous amniote integuments recorded through a taphonomic process unique to resins
Fossil records of vertebrate integuments are relatively common in both rocks, as compressions, and amber, as inclusions. The integument remains, mainly the Mesozoic ones, are of great interest due to the panoply of ...
Presencia de Caliche Fósil en el Buntsandstein del valle del Congost (Provincia de Barcelona)
Se señala la presencia de caliche fósil en el Triásico inferior y el cual es interpretado como caliche inicialmente maduro producido en cortas exposiciones subáreas en condiciones semiáridas. Se deducen das tipos de ambientes ...
A sedimentological insight into the deglacial reorganization of the Mediterranean thermohaline circulation
During the last deglaciation and early Holocene significant oceanographic changes have been observed in both western and eastern Mediterranean basins. Post glacial sea level rise strongly reduced the northwestern overturning ...
Detección por el satélite LANDSAT-4 de los efectos de la riada del 8-XI-82 en el río Segre
Por medio de técnicas de tratamiento de imágenes digitales se realiza un estudio de los efectos producidos por una inundación ocurrida a finales del año 1982 en el valle del río Segre, en Catalunya, a partir de la información ...
Role of inheritance during tectonic inversion of a rift system in basement-involved to salt-decoupled transition: Analogue modelling and application to the Pyrenean-Biscay system
The reactivation of former rift systems and passive margins during tectonic inversion and their incorporation into fold-and-thrust belts result in significant structural differences not only between internal and external ...
Inversion of transfer zones in salt-bearing extensional systems: insights from analogue modeling
This work uses sandbox analogue models to analyze the formation and subsequent inversion of a decoupled extensional system comprised of two segmented half-grabens with thick early syn-rift salt. The segmented half grabens ...
Transverse jointing in foreland fold-and-thrust belts: a remote sensing analysis in the eastern Pyrenees
Joint systems in the eastern portion of the Ebro Basin of the eastern Pyrenees enjoy near continuous exposure from the frontal portion of the belt up to the external portion of its associated foredeep. Utilizing orthophoto ...
Detection potential of the KM3NeT detector for high-energy neutrinos from the Fermi bubbles.
A recent analysis of the Fermi Large Area Telescope data provided evidence for a high-intensity emission of high-energy gamma rays with a E−2 spectrum from two large areas, spanning 50° above and below the Galactic centre ...
Late Holocene vegetation dynamics and deforestation in Rano Aroi: implications for Easter Island's ecological and cultural history
Easter Island (Rapa Nui) has been considered an example of how societies can cause their own destruction through the overexploitation of natural resources. The flagship of this ecocidal paradigm is the supposed abrupt, ...
Magnetotelluric Impedance Tensor Tools (MITT) 2.0
MITT program has been written in Python 2.7 and has only been tested in Linux OS. MITT program is manly constituted by four blocks: 1- Magnetotelluric impedance tensor representation (Apparent resistivity and phase curves, ...
Exploring a Mallorca cave flooding during the Little Ice Age using nondestructive techniques on a stalagmite : micro-CT and XRF core scanning
This study focuses on characterizing a discontinuity within the Seán stalagmite (4.75–7.75 cm) by means of two nondestructive techniques: (1) high-resolution micro-computed tomography (micro-CT) and (2) X-ray fluorescence ...
Physico-chemical analysis of Albian (Lower Cretaceous) amber from San Just (Spain): implications for palaeoenvironmental and palaeoecological studies.
Amber from a Lower Cretaceous outcrop at San Just, located in the Eastern Iberian Peninsula (Escucha Formation, Maestrat Basin), was investigated to evaluate its physico-chemical properties. Thermogravimetric (TG) and ...
Present and past variability of the Mediterranean Outflow Water using Nd isotopes
The Mediterranean Outflow Water (MOW) is a source of heat and salt into the Atlantic Ocean, and it has been proposed that it preconditions the water masses that participate in the production of deep water into the north ...
New barklice (Psocodea, Trogiomorpha) from Lower Cretaceous Spanish amber
Barklice are insects belonging to the order Psocodea. They are herbivorous or detritivorous, and inhabit a wide range of environments. Their oldest fossil record dates back to the late Carboniferous, but it was not until ...
The Role of Methane Transport From the Active Layer in Sustaining Methane Emissions and Food Chains in Subarctic Ponds
Groundwater discharge from the seasonally thawed active layer is increasingly recognized as an important pathway for delivering methane (CH4) into Arctic lakes and streams, but its contribution to CH4 emissions from thaw ...
Generalist Pollen-Feeding Beetles during the Mid-Cretaceous.
The Cretaceous fossil record of amber provides a variety of evidence that is essential for greater understanding of early pollination strategies. Here, we describe four pieces of ca. 99-million-year-old (early Cenomanian) ...
Upper Eocene-Lowermost Miocene charophyte succession in the Ebro Basin (Spain). Contribution to the charophyte biozonation in Western Europe
A charophyte succession has been established in nineteen sections and eight isolated outcrops from the Ebro Basin, ranging from the Priabonian ro the Aquitanian. Most assemblages were recovered fmm continuous sections and ...
Deglacial and Holocene changes in Mediterranean Thermohaline Circulation: A joint perspective from Eastern and Western basins [INQUA 2023]
The dominant arid climate conditions over the Mediterranean (Med) control water properties and the formation processes of intermediate and deep water masses. Deep convection cells occur in both the E- and W-Med basins ...
Vegetation changes and human settlement of Easter Island during the last millennia: a multiproxy study of the Lake Raraku sediments
Earlier palynological studies of lake sediments from Easter Island suggest that the island underwent a recent and abrupt replacement of palm-dominated forests by grasslands, interpreted as a deforestation by indigenous ...
