Results 21 to 30 of about 1,468 (200)

The Proximal Ejecta Around the Marine‐Target Lockne Impact Structure, Sweden

Journal of Geophysical Research: Planets, Volume 128, Issue 7, July 2023., 2023
Abstract Very few impact craters on Earth have preserved proximal ejecta (ejecta blanket), which when present help us to better understand the cratering processes when asteroid hits Earth. The 458 Ma old Lockne impact structure consists of a 7.5‐km wide nested crater in the crystalline basement surrounded by an approximately 3‐km wide brim developed in
Erik Sturkell, Jens Ormö, Eric Austin Hegardt, Gabrielle Stockmann, Erik Meland, Torbjörn Wikström   +5 more
wiley   +1 more source

Bridging Legends and Science: Field Evidence of a Large Tsunami that Affected the Kingdom of Tonga in the 15th Century

Frontiers in Earth Science, 2021
The pre-colonial history (i.e. before the 16th century) of Tonga and West Polynesia still suffers from major gaps despite significant scientific advances in recent years, particularly in the field of archaeology.
Franck Lavigne, Franck Lavigne, Franck Lavigne, Julie Morin, Patrick Wassmer, Olivier Weller, Taaniela Kula, Ana V. Maea, Karim Kelfoun, Fatima Mokadem, Raphael Paris, Mukhamad Ngainul Malawani, Mukhamad Ngainul Malawani, Mukhamad Ngainul Malawani, Audrey Faral, Audrey Faral, Mhammed Benbakkar, Ségolène Saulnier-Copard, Céline M. Vidal, Tu’I’ahai Tu’I’afitu, Fuka Kitekei’aho, Martine Trautmann, Christopher Gomez   +22 more
doaj   +1 more source

The Central Series of the Rum Igneous Complex, NW Scotland: the rises and falls of magma in a large mafic‐ultramafic volcano

Geology Today, Volume 39, Issue 4, Page 130-143, July/August 2023., 2023
The Central Series of the Paleocene mafic to ultramafic Rum complex is the youngest of the three main cumulate series that make up the layered igneous complex of this famed Scottish island. The Central Series lies along the Long Loch Fault and provides insights into the feeder system to the Rum intrusion at an erosion level of about two kilometres ...
Brian G.J. Upton, Valentin R. Troll, C. Henry Emeleus, Colin H. Donaldson   +3 more
wiley   +1 more source

Multiscale Geoelectrical Properties of the Rochechouart Impact Structure, France

Geochemistry, Geophysics, Geosystems, 2021
The 205 Ma Rochechouart impact structure (France) is characterized by various impactite formations overlying the Hercynian crystalline basement. New constraints from downhole logging and surface electrical resistivity measurements along >100 m long ...
Yoann Quesnel, Pascal Sailhac, Johanna Lofi, Philippe Lambert, Pierre Rochette, Minoru Uehara, Christian Camerlynck   +6 more
doaj   +1 more source

Pacific Pumas in Indian Jungle: Place of Latin America in Indo-Pacific

Vestnik MGIMO-Universiteta, 2023
The article examines the political potential of Latin American countries in bolstering their influence within the Indo-Pacific region (IP). It delves into the Indo-Pacific concept, championed internationally by India and Japan, as an alternative ...
T. A. Vorotnikova
doaj   +1 more source

The origin of carbonates in impact melt‐bearing breccias from Site M0077 at the Chicxulub impact structure, Mexico

Meteoritics &Planetary Science, Volume 58, Issue 6, Page 834-854, June 2023., 2023
Abstract Carbonates from the impact melt‐bearing breccia in the 2016 IODP/ICDP Expedition 364 drill core at Site M0077 were systematically documented and characterized petrographically and geochemically. Calcite, the only carbonate mineral present, is abundant throughout this deposit as five distinct varieties: (1) subangular carbonate clasts (Type A);
Nicolas D. Garroni, Gordon R. Osinski
wiley   +1 more source

First evidence of accumulation of mega boulders on the Mediterranean rocky coast of Provence (southern France) [PDF]

Natural Hazards and Earth System Sciences, 2011
An accumulation of boulders was recently discovered along the rocky coast of the Gulf of Fos located in Provence, in an area exposed to a south-westerly wave regime.
C. Vella, F. Demory, V. Canut, P. Dussouillez, T. J. Fleury   +4 more
doaj   +1 more source

Evolution of the composition of hydrothermal mineral-forming fluid of ore deposits in early Precambrian of the Ukrainian Shield

Геофизический журнал, 2023
The aim of the study, the results of which are presented in this article, is to study changes in the composition of hydrothermal fluid ore systems of the early Precambrian on the example of gold and uranium ore deposits of the Ukrainian shield in ...
Yu.O. Fomin, Yu.M. Demikhov, V.G. Verkhovtsev, V.V. Pokalyuk, O.V. Buglak, N.M. Borisova   +5 more
doaj   +1 more source

Landslide Processes Involved in Volcano Dismantling From Past to Present: The Remarkable Open‐Air Laboratory of the Cirque de Salazie (Reunion Island)

Journal of Geophysical Research: Earth Surface, Volume 127, Issue 5, May 2022., 2022
Abstract The Cirque de Salazie is one of the large erosional depressions of Reunion Island. Composed of a thick accumulation of loose volcaniclastic materials derived from successive volcanic flank collapses and exposed to high precipitation rates, this large depression is particularly prone to landslides. Of the 133 km2 making up this large depression,
C. Rault, Y. Thiery, M. Chaput, P. A. Reninger, T. J. B. Dewez, L. Michon, K. Samyn, B. Aunay   +7 more
wiley   +1 more source

The structure of the Western and Central parts of the Ukrainian schield. Controversial issues

Геофизический журнал, 2018
Some controversial issues of composing the Scheme of the fault megablock tectonics of the western half of the Ukrainian shield in connection with the decision of the Interdepartmental Tectonic Committee of Ukraine on drawing up the Tectonic map of the ...
О. B. Gintov, M. I. Orlyuk, V. A. Entin, I.K. Pashkevich, S. V. Mychak, M. I. Bakarzhieva, L. M. Shimkiv, A. V. Marchenko   +7 more
doaj   +1 more source