Results 41 to 50 of about 172 (155)
Holocene subaqueous landslide dynamics in the Lake Siljan‐Orsasjön Basin, south‐central Sweden
Subaqueous landslide areas studied by multibeam bathymetry, sub‐bottom profiling and sediment coring reveal complex stratigraphies, suggesting mass movement events starting close to the area's deglaciation and up to very recent times. Abstract The Siljan‐Orsasjön Basin in south‐central Sweden hosts two prominent lakes.
Per Möller +6 more
wiley +1 more source
Regarding geotectonic zoning of crystalline basement of Ukrainian shield
The article shows that transition to geotectonic zoning of Ukrainian shield – as a basis for clarification of stratigraphic correlation of Precambrian formations, which was declared in the decisions of Precambrian section of NSC Ukraine (2003), did not ...
M. M. Kostenko
doaj
Geodynamic features of the Ukrainian Shield (USh) from Early Precambrian to Phanerozoic have been considered based on tectonophysical analysis of complex geophysical 3D model of the Shield, produced at the Institute of Geophysics of the National Academy ...
O.B. Gintov, I. K. Pashkevich
doaj +1 more source
The article considers some specific features of the fracture-block structure of the Podolye and Volyn megablocks of the Ukrainian Shield, as well as the Volyn-Polesye volcano-plutonic belt (within the sheet of M-35-IX — «Kostopol») in connection with ...
V.A. Entin +5 more
doaj +1 more source
Geological structure and magmatism of the Shchuchinsky megablock (Polar Urals)
Purpose of the work: determination of the geological structure, occurences of magmatism and geodynamics of the northernmost isolated segment of the paleooceanic sector of the Ural mobile belt – the Shchuchinsky megablock. Geographic disconnection with the southern structures of the Ural mobile belt and sub-ring structure have led to both a suspended ...
openaire +1 more source
Abstract Regolith samples from the lunar south pole are expected to contain material from the ancient lunar crust and potentially the uppermost mantle, excavated by the South Pole‐Aitken (SPA) impact. In this study, we aim to understand the impact resurfacing processes following the SPA impact and the subsequent redistribution of primordial crust and ...
T. Frueh +7 more
wiley +1 more source
Caldera-forming eruptions represent extremely hazardous events. The Loch Bà Caldera on the Isle of Mull, NW Scotland, preserves an ~120 m thick sequence of Palaeogene silicic pyroclastic rocks and collapse breccias.
Peter Nicholls, David Brown, Ross Dymock
doaj +1 more source
Abstract One of the most common types of allochthonous impactite produced in hypervelocity impact events is impact breccia that contains melt particles. In numerous terrestrial hypervelocity impact structures such melt‐bearing breccias have been termed “suevite,” after the type locality at the Ries impact structure, Germany.
Gordon R. Osinski, Richard A. F. Grieve
wiley +1 more source
Ries magnetic mineralogy: Exploring impact and post‐impact evolution of crater magnetism
Abstract Large‐scale impact events are some of the most catastrophic and instantaneous geological processes in nature, and leave in their wake conspicuous geological structures with characteristic magnetic anomalies. Despite magnetic anomalies in craters being well‐documented, their relationship with the magnetic mineral composition of the target and ...
Bruno Daniel Leite Mendes +3 more
wiley +1 more source
In the second article of the cycle «On a link of rare earth-rare metal and gold-ore mineralization with fault-block tectonics of the Ukrainian shield» [Nechaev et al., 2018] the internal structure, kinematics, age and metallogeny of the faults of the ...
S. V. Nechaev, O.B. Gintov, S. V. Mychak
doaj +1 more source

