Abstract The Kimmeridgian Alcobaça Formation of the Lusitanian Basin forms a mixed carbonate–siliciclastic unit between basinal deposits Abadia Formation, and fluvial–terrestrial strata Lourinhã Formation. This study presents >2.5 km detailed logs nine outcrop sections in its type region. Eight these encircle Caldas da Rainha Diapir, which was prominent, emergent, passive salt diapir during ...

To understand hydrocarbon migration in terms of the mechanisms, accumulations and exploration targets, it is essential to correctly identify characterize carrier systems that control fluid-migration history oil/gas reservoir formation. The Yinggehai Basin China an important area for natural gas production. However, due argillaceous sand sedimentary environment absence faults from Neogene therma...

Geophysical data have led to the interpretation that Beta Regio, a 2000×25000 km wide topographic rise with associated rifting and volcanism, formed due to the rise of a hot mantle diapir interpreted to be caused by a mantle plume. We have tested this hypothesis through detailed geologic mapping of the V-17 quadrangle, which includes a significant part of the Beta Regio rise, and reconnaissance...

Magnetization by core dynamo activity in large asteroids and planetesimals is suggested the remnant magnetization of many achondritic meteorites. However, conditions for a sustained such small bodies problematic several reasons. Such may not have energy budget or size to achieve sufficient dynamo. Moreover, given their low internal pressures, planetesimal cores likely freeze from top down, wher...

Stereo topography of an area near Tyre impact crater, Europa, reveals chaos regions characterised by marginal cliffs and domical topography, rising to 100–200 m above the background plains. The regions contain blocks which have both rotated and tilted. We tested two models of chaos formation: a hybrid diapir model, in which chaos topography is caused by thermal or compositional buoyancy, and bl...

By harnessing both hypothetical, synthetic basin and gas hydrate (GH) system models real-world of well-studied salt diapir-associated GH sites at Green Canyon (Gulf Mexico) Blake Ridge (U.S. Atlantic coast), we propose demonstrate movement (and in particular, diapirism) to be a new mechanism for the recycling marine GH. At Canyon, example, show that by considering this newly proposed diapir-dri...

The Altiplano-Puna ultralow-velocity zone in the central Andes, South America, is the largest active magma body in Earth's continental crust. Space geodetic observations reported an uplift in the Altiplano-Puna proper at a rate of ~10 mm/year; however, the nature of the inferred inflation source has been uncertain. We present data showing that the uplift has persisted at a nearly constant rate ...

This work evaluates growth strata adjacent to the Bakio Diapir in Basque Pyrenees, aiming discuss application of halokinetic-sequence concepts, mainly developed shallow-water subaerial environments, deepwater depositional settings. is one few exposed passive diapirs with both synkinematic carbonate and siliciclastic strata. Thus, considering that large hydrocarbon producing areas are located sa...