0019-1035/$ see front matter 2012 Elsevier Inc. A doi:10.1016/j.icarus.2012.02.027 ⇑ Corresponding author. Fax: +1 401 863 3978. E-mail address: [email protected] (T.A. Gou A large number of candidate open-basin lakes (low-lying regions with both inlet valleys and an outlet valley) have been identified and mapped on Mars and are fed by valley network systems that were active near the Noachia...

Introduction: Mars atmospheric pCO2 levels between 4.5-3.8 Ga have commonly been estimated at 13 bar [1,2] based on the existence of fluvial features or sedimentary rocks on the surface of Mars. Most of the original atmospheric CO2 (90-95%) has been lost through impact erosion, sputtering processes associated with the solar wind and sequestration within the crust [3]. This has been correlated w...

The existence of thermomineral waters in the Lisbon region (western Portugal), has been known for centuries. Several authors have investigated characteristics these waters, but their conceptual model (recharge zone, processes controlling origin and chemical evolution, depth circulation, etc.) remains unknown. This work highlights advantages assessing urban coastal areas, where different saline ...

Late to post-Caledonian, Devonian extension remains unresolved in the SW Barents Sea, despite considerable knowledge from onshore Norway, East Greenland and Svalbard. We analyse intrabasement seismic facies high-resolution 3D reprocessed 2D data investigate evidence for Caledonian deformation post-Caledonian detachment faulting central Sea. These results are compared published potential field m...

Continental rifted margins are often associated with widespread, thick evaporite (i.e., salt) deposits and pronounced salt tectonics. The majority of basins formed during the latest stages rifting, prior to continental breakup. We use 2D thermo-mechanical finite element modeling lithospheric extension investigate interplay between margin architecture, late syn-rift deposition, post-rift focus o...

Abstract The abandoned gypsum quarry at Dingwall, in Canada, is a unique place with peculiar “living” landscape created by expansive hydration of anhydrite process actively operating the weathering zone bottom. It causes rapid volume increase rocks and formation domed tepee-like landforms (several meters length up to 2.09 m high) internal caves (swelling caves, German: Quellungshöhlen ). also s...

The Early Jurassic is an important interval characterized by several global carbon-isotope (?13C) perturbations. Although the ?13C records are becoming better documented during this time interval, we have a relatively poor understanding of associated long-term environmental and climatic changes. In order to decipher these events, here present new stable sulfur-isotope data carbonate-associated ...

Evaporites are typically described as impermeable seals that create some of the world's highest reservoir pressures beneath salt seal. However, several laboratory studies demonstrate evaporites can retain open pore spaces hydraulically connect sediments above and below them in sedimentary basins. During Messinian Salinity Crisis (5.97–5.33 Ma), up to 2,400 m thickness were rapidly deposited Wes...

North of Sahara, Algeria. The effects water/rock interactions and hydrodynamic conditions on the characteristics groundwater in Continental Intercalaire aquifer (CI) are demonstrated using hydrochemical isotopic data from Mzab Ridge. results confirm that CI oriental basin is highly mineralized (1010 > EC 3500 ?S/cm) SO4-Cl-Na type. However, it poorly (340 960) occidental predominantly belongs t...

Changes in sedimentary profiles and stratigraphic architecture over time lake basins are shown to be relevant markers of climate changes terrestrial palaeoenvironments. The the Priabonian (late Eocene)–early Rupelian (early Oligocene) Alès–Saint-Chaptes–Issirac saline system has been reconstructed from sedimentological, biostratigraphic magnetostratigraphic analysis outcrops well cores. As a fu...