Results 71 to 80 of about 901 (179)

Impact Resurfacing of the Artemis Exploration Zone: Sample Locations for Primordial Crust and South Pole‐Aitken (SPA) Ejecta

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
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, A. Camon, M. Boyce, S. L. Halwa, G. Ligeza, M. Lemelin, B. J. Thomson, D. A. Kring   +7 more
wiley   +1 more source

Regarding geotectonic zoning of crystalline basement of Ukrainian shield

Мінеральні ресурси України, 2015
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  

Geological structure and magmatism of the Shchuchinsky megablock (Polar Urals)

NEWS of the Ural State Mining University, 2020
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

The “suevite” conundrum, Part 2: Re‐examining the type locality at the Ries impact structure, Germany

Meteoritics &Planetary Science, Volume 59, Issue 10, Page 2622-2650, October 2024.
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

Las estructuras de impacto doble del terciario medio de Azuara y Rubielos de la Cérida (España) [PDF]

, 2002
We report on the Azuara impact structure and its Rubielos de la Cérida companion crater, which establish the largest terrestrial doublet impact structure presently known. Both structures have diameters of roughly 35 – 40 km and they have been formed in a
Claudin, Ferran, Ernstson, Kord, Hradil, K., Schüssler, U.   +3 more
core  

Ries magnetic mineralogy: Exploring impact and post‐impact evolution of crater magnetism

Meteoritics &Planetary Science, Volume 59, Issue 7, Page 1577-1609, July 2024.
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, Agnes Kontny, Katarzyna Dudzisz, Franziska D. H. Wilke   +3 more
wiley   +1 more source

Rapid caldera subsidence and fluctuating eruption dynamics: the lithostratigraphy and structure of the Loch Bà Caldera, Isle of Mull, NW Scotland

Volcanica
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

Dynamics of the Marginal Late Wisconsin Miami Sublobe, Cincinnati, Ohio [PDF]

, 1992
Author Institution: Department of Geology, University of CincinnatiPhysical characteristics and stratigraphic relationships of glacigenic diamictons in southwestern Ohio have permitted interpretation of local activity and thermal regime of the ice margin
Lowell, Thomas V., Savage, Kevin M.
core  

Эволюция расплавов и флюидов в процессе формирования коры и мантии в неоархее—палеопротерозое. Стратиграфические следствия [PDF]

, 2016
Еволюція складу докембрійських магматичних і метаморфічних комплексів пов’язана з спрямованою зміною складу глибинних флюїдів. Це дає змогу використовувати речовинний склад порід як ознаку для кореляції.
Усенко, О.В.
core   +2 more sources

Glacial and volcanic landforms in the upper catchment of Claro River, Central Chile (35.5°S): A Late Quaternary geomorphological case study

Earth Surface Processes and Landforms, Volume 49, Issue 7, Page 2291-2307, 15 June 2024.
The upper catchment of the Claro river in the central Chilean Andes is described in terms of volcanic and glacial landforms seeking to establish a relative chronology associated to events during the late Pleistocene and Holocene, which is summarized in seven phases and presented as a conceptual model.
Paulina Mejías Osorio, Joaquín Cortés‐Aranda, Pablo Salas, María Mardones   +3 more
wiley   +1 more source