Results 81 to 90 of about 5,757 (227)

Contrastive Analysis of Deep-Water Sedimentary Architectures in Central West African Passive Margin Basins During Late-Stage Continental Drift

open access: yesJournal of Marine Science and Engineering
The Lower Congo Basin (LCB) and the Niger Delta Basin (NDB), two end-member deep-water systems along the West African passive margin, exhibit contrasting sedimentary architectures despite shared geodynamic settings.
Futao Qu   +3 more
doaj   +1 more source

Are the Equatorial Highlands on Venus formed by mantle plume diapirs? [PDF]

open access: yes
Several origins have been proposed for the Equatorial Highlands on Venus, including spreading centers and plume-related uplift. Recently, the spreading center hypothesis has been shown to be incompatible with the measured geoid and topography variations ...
Olson, Peter
core   +1 more source

LiDAR mapping of the sedimentary rocks surrounding a salt diapir: a powerful tool to assist landslide identification and structural/depositional sequence analysis (Maestu diapir, N Spain)

open access: yesJournal of Maps
A new 1:25.000 geological map is presented for a 26 × 22 km quadrangle containing the Maestu salt diapir and its sedimentary country rocks. A new mapping approach was followed to depict the distribution of interpreted late Cretaceous-Paleogene ...
B Ábalos
doaj   +1 more source

Datos paleomagnéticos en materiales sin-diapíricos Aptienses-Albienses (cuenca Vasco-Cantábrica, N Iberia) [PDF]

open access: yes, 2017
In order to obtain a kinematic model linking the diapir formation and the geometry of the syn-diapir sediments, a paleomagnetic study has been conducted in selected syn-diapiric sequences of the Basque-Cantabrian Basin. The studied diapirs (Bakio, Bermeo,
Almar, Ylenia   +5 more
core  

Mechanisms and Geochemical Models of Core Formation

open access: yes, 2015
The formation of the Earth's core is a consequence of planetary accretion and processes in the Earth's interior. The mechanical process of planetary differentiation is likely to occur in large, if not global, magma oceans created by the collisions of ...
Abe   +74 more
core   +1 more source

Seepage system of oil-gas and its exploration in Yinggehai Basin located at northwest of South China Sea

open access: yesJournal of Natural Gas Geoscience, 2017
Seepage systems of oil-gas in Yinggehai Basin are divided into two types, namely: “micro-seepage”, which is presented by gas chimneys and pockmarks; and “macro-seepage”, which is also called oil-gas outflow; and, in addition, the combination of the two ...
Jiaxiong He, Wei Zhang, Zhenquan Lu
doaj   +1 more source

Environmental impact and sedimentary structures of mud volcanoes in southeast of the Caspian Sea basin, Golestan Province, Iran [PDF]

open access: yes, 2015
Mud volcanoes are defined as main elements of geological structures and ways through and within which buried argillaceous loose sediments and lithified rocks.
Ranjbaran, M., Sotohian, F.
core   +1 more source

Palaeo-earthquake events during the late Early Palaeozoic in the central Tarim Basin (NW China): evidence from deep drilling cores

open access: yesGeologos, 2014
Various millimetre-, centimetre- and metre-scale soft-sediment deformation structures (SSDS) have been identified in the Upper Ordovician and Lower-Middle Silurian from deep drilling cores in the Tarim Basin (NW China). These structures include liquefied-
He Bizhu   +6 more
doaj   +1 more source

Surface Deformation and Salt Budget of an Active Salt Fountain, Finu in the Zagros Mountains, Iran, Using Persistent Scatterer Interferometry [PDF]

open access: yesLithosphere
In subaerial salt diapirs, salt buoyancy drives the vertical flow of salt in the feeder, salt extrusion, and gravity spreading on the surface. The shape of these diapirs is controlled by the balance between buoyancy forces, gravity spreading on the ...
Mjahid Zebari   +7 more
doaj   +1 more source

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