Results 51 to 60 of about 90,092 (222)

Revisiting olivine‐phyric shergottites: Pyroxene crystallization pressure and the role of undercooling

Meteoritics &Planetary Science, EarlyView.
Abstract Shergottites are the most abundant meteorites from Mars and a major source of information on magma reservoirs, transport, and eruption, particularly in the late Hesperian northern hemisphere. Conflicting interpretations have arisen on the crystallization conditions of pyroxene in olivine‐phyric shergottites.
Roger H. Hewins, Brigitte Zanda, Arnaud Duverger   +2 more
wiley   +1 more source

Electron microprobe analysis of Ca in olivine close to grain boundaries: The problem of secondary X-ray fluorescence. [PDF]

, 1996
Dalton, John A., Lane, Steve J.
core   +4 more sources

Plumbing system dynamics during the 2024 paroxysmal sequence at the Voragine crater of Mt. Etna volcano as revealed by the olivine crystal cargo

Volcanica
The sequence of six paroxysmal eruptions that occurred between July and August 2024 at Mt. Etna’s Voragine crater has been investigated in order to constrain the plumbing system dynamics.
Massimiliano Cardone, Giorgio Costa, Marisa Giuffrida, Marco Viccaro   +3 more
doaj   +1 more source

An interdisciplinary approach to the pre- and syn-eruptive magma dynamics during the Tajogaite monogenetic eruption (La Palma, 2021)

Frontiers in Earth Science
The 2021 Tajogaite eruption (La Palma, Canary Islands) provides a unique opportunity to investigate magma dynamics in magmatic systems where developed and monogenetic volcanoes coexist.
H. Albert, H. Albert, P. A. Torres-González, H. Lamolda, H. Lamolda, V. Villasante-Marcos, N. Luengo-Oroz, A. Fernández-García, A. J. Molina-Arias, M. Aulinas, M. Aulinas, E. González-Alonso, F. Prieto, G. Gisbert, G. Gisbert, V. R. Troll, V. R. Troll   +16 more
doaj   +1 more source

Proterozoic arc magmatism from the Padhar mafic-ultramafics in Betul Belt, Central India Tectonic Zone: Insight from petrography, bulk rock and in-situ trace element geochemistry

Geosystems and Geoenvironment
This study presents the first identification of an Alaskan-type intrusion within the late-Proterozoic Padhar mafic-ultramafic complex (PMUC), situated along the Central Indian Tectonic Zone (CITZ).
M. Lachhana Dora, Hassan M. Helmy, Rajkumar Meshram, Nathala K. Rao, Mohamad Shareef, Raghuram, Vivek P. Malviya, Tushar Meshram, Srinivas Rao Baswani, Mohammad Atif Raza, Kirtikumar Randive   +10 more
doaj   +1 more source

Insights into the magma plumbing system architecture beneath an off-ridge ocean island (Terceira, Azores) from crystal zoning

Volcanica
Understanding the architecture and dynamics of crustal magmatic plumbing systems is essential for interpreting volcanic processes and eruption styles in ocean island settings.
Kat Shepherd, Olivier Namur, David Neave, Yishen Zhang, Thomas Van Gerve, Tom Van Helden, Thibaut Van Acker, Stephan Klemme, Jasper Berndt-Gerdes, Bernard Charlier, Jacqueline Vander Auwera   +10 more
doaj   +1 more source

Oxygen Isotopes and Volatiles in Martian Meteorite [PDF]

, 2013
Oxygen isotopes were measured in mineral separates from martian meteorites using laser fluorination and were found to be remarkably uniform in both δ18O and Δ17O, suggesting that martian magmas did not assimilate aqueously altered crust regardless of any
Channon, Melanie Beth
core   +1 more source

Magmatic Interaction as Recorded in Texture and Composition of Plagioclase Phenocrysts from the Sirjan Area, Urumieh-Dokhtar Magmatic Arc, Iran [PDF]

Journal of Sciences, Islamic Republic of Iran, 2009
Tertiary andesitic basalts of the Sirjan area, Urmieh-Dokhtar Magmatic Arc, Iran, contain plagioclase phenocrysts enclosed in a matrix of amphibole, clinopyroxene and rare olivine crystals.
B. Monfaredi
doaj  

Marc Chaussidon—Leonard Medal 2026

Meteoritics &Planetary Science, EarlyView.
François Robert
wiley   +1 more source

Role of structural defects in olivine cathodes [PDF]

, 2012
The high rate capability and structural stability of the olivine phosphates attracted a lot of interest as promising cathode materials for high energy density batteries.
Kandhasamy, S., Nallathamby, K., Minakshi, M.   +2 more
core