Results 51 to 60 of about 7,541 (160)

Geochemical Analysis of Diachronous V‐Shaped Ridges and Troughs That Flank the Reykjanes Ridge South of Iceland

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract It is recognized that mantle plumes play a direct role in generating regional uplift and producing immense volumes of basaltic magmatism, both of which can influence paleoclimate. The Icelandic Plume, beneath the North Atlantic Ocean, is of particular importance due to its size and position at a significant paleoceanographic gateway.
Nicky White, Chia‐Yu Tien, Callum Pearman, John Maclennan, Bramley Murton, Expedition 395 Scientists   +5 more
wiley   +1 more source

Blueschist Dislocation Creep and Glide in Subduction Systems: Constraints From Glaucophane Experiments

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Blueschists are a defining component of subducting oceanic crust and influence slab and interface rheology across thermal regimes. Glaucophane, the dominant sodic amphibole in blueschist, is a key rheology‐controlling phase, yet its dislocation‐based strength is poorly constrained.
Lonnie J. Hufford, Leif Tokle, Whitney M. Behr, Luiz F. G. Morales, Claudio Madonna   +4 more
wiley   +1 more source

Triassic MORB magmatism in the southern Mirdita zone (Albania)

, 2006
In southern Albania the Mirdita Ophiolitic nappe is characterized by subophiolitic complexes in which remnants of volcanic ophiolite sequences of Triassic age have been identified, either as rare blocks of variable dimension in the Rubik Complex, or as a thin tectonic unit (the Porava Unit), sited immediately under the main ophiolitic masses of the ...
Valerio Bortolotti, Marco Chiari, Alaudin Kodra, Marta Marcucci, Michele Marroni, Faruk Mustafa, Mensi Prela, Luca Pandolfi, Gianfranco Principi, Emilio Saccani   +9 more
openaire   +6 more sources

Controls on Iron‐Redox State in Martian Magmas Quantified by Mössbauer Spectroscopy, Colorimetric Wet Chemistry, and XANES Spectroscopy

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract To elucidate the relationship between oxygen fugacities (fO2) recorded in martian basalts and redox processes in the martian interior, superliquidus 100‐kPa furnace experiments on a composition similar to Humphrey (Adirondack basalt) were conducted at variable fO2 and temperature. Quenched glasses were analyzed by EPMA, Mössbauer spectroscopy,
S. P. Aithala, R. A. Lange, M. M. Hirschmann   +2 more
wiley   +1 more source

Evidence of the spreading culmination in the Eastern Tethyan Repno oceanic domain, assessed by the petrology and geochemistry of N-MORB extrusive rocks from the Mt. Medvednica ophiolite mélange (NW Croatia)

Geologia Croatica, 2012
Eastern Tethyan Repno oceanic domain (ROD) from Zagorje-Mid-Transdanubian Shear Zone bounds Meliata-Maliak and Dinaric-Vardar oceanic systems. The domain lacks ophiolite complexes and oceanic rocks are restricted into Early Callovian to Late Valanginian ...
Damir Slovenec, Boško Lugović
doaj   +1 more source

The Paleo‐Tethys Suture Zone in the Afghan Hindu Kush‒Pamir: Geo‐Thermochronology, Geochemistry, Tectonics

Tectonics, Volume 45, Issue 3, March 2026.
Abstract In the Afghan Hindu Kush, the 223–209 Ma (≤800°C) Salang batholith is part of the Silk‐Road magmatic arc that was built on ∼40‐km‐thick Turan‐Karakum block continental crust. The batholith constitutes the hanging wall of the Herat‐Panjshir‐Badakhshan—the Paleo‐Tethys—suture zone, vestige of the subducted Paleozoic‐early Mesozoic Paleo‐Tethys ...
Lothar Ratschbacher, Said Amin Hashimy, Hasan Malistani, Yasuhito Osanai, Jianhua Li, Zhao Yang, Bradley R. Hacker, Leander Franz, Hadi Karimi   +8 more
wiley   +1 more source

Изотопно-геохимическая гетерогенность магматических пород террейнов островодужной природы Восточной Камчатки

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
Показаны различия вещественного состава пород, слагающих отдельные вулканические поля в пределах островодужных террейнов Камчатки. Установлено, что для меловых пород северных сегментов Кроноцкого террейна характерны вулканиты низкокалиевой толеитовой ...
Н.В. Цуканов, П.И. Федоров, Д.В. Коваленко   +2 more
doaj   +1 more source

Geochemistry of amphibolites and related graphitic gneisses from the Suchý and Malá Magura Mountains (central Western Carpathians) – evidence for relics of the Variscan ophiolite complex

Geologica Carpathica, 2015
Three small bodies of amphibolites and associated graphitic gneisses from the Suchý and Malá Magura Mountains (Tatric Megaunit, central Western Carpathians) have been studied by petrographic and geochemical methods.
Ivan Peter, Méres Štefan
doaj   +1 more source

ЗАКОНОМЕРНОСТИ ДИНАМИКИ ОКРАИННОМОРСКОГО МАГМАТИЗМА (КОРЕЙСКО-ЯПОНСКИЙ РЕГИОН)

Литосфера, 2019
Синтез информации по магматическим породам Корейско-Япономорского региона и вулканитам некоторых задуговых бассейнов запада Тихого океана позволил выявить специфику динамики магматизма Японского бассейна.

doaj  

Пикриты Камчатско-Корякского региона

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
Охарактеризованы особенности химического состава и условия становления ультраосновных вулканитов (пикритов) Камчатки и Корякии, с учетом новых данных о тектоническом развитии этих регионов.
З.Г. Бадрединов, Б.А. Марковский   +1 more
doaj   +1 more source