Results 51 to 60 of about 10,594 (229)

Revealing the Magmatic Impulse Emplacement and Evolution Path of Kimberlite in Southern Liaoning through Mineralogical Characteristics of the Phlogopite Zone

Applied Sciences
Phlogopite is a crucial indicator for effectively constraining the magmatic evolution and emplacement mechanism of kimberlite. In this study, samples were collected from the No. 110 kimberlite pipe within diamond belt I and the No.
Sishun Ma, Ende Wang, Haitao Fu
doaj   +1 more source

Melting of subducted sediments reconciles geophysical images of subduction zones

Nature Communications, 2021
Here, the authors identify that magnetotelluric conductive anomalies commonly observed on the trenchward-side of volcanic arcs in subduction zones can be explained by subducted sediments.
M. W. Förster, K. Selway
doaj   +1 more source

Theoretical petrology [PDF]

, 1979
The central issues in petrology have remained remarkably unchanged in the last 50 years. In igneous petrology, the focus is on understanding the nature and cause of diversity in igneous rocks: on identifying primary magma types and constraints on the ...
Stolper, Edward
core   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

Petrogenesis of lavas from Detroit Seamount: Geochemical differences between Emperor Chain and Hawaiian volcanoes [PDF]

, 2005
The Hawaiian Ridge and Emperor Seamount Chain define a hot spot track that provides an 80 Myr record of Hawaiian magmatism. Detroit Seamount (∼76 to 81 Ma) is one of the oldest Emperor Seamounts.
Abouchami, Adam, Albarede, Bach, Barrett, Basaltic Volcanism Study Project, Bass, Blichert-Toft, Blundy, Blundy, Caplan-Auerbach, Carmichael, Castillo, Castillo, Castillo, Castillo, Castillo, Chen, Clague, Class, Cottrell, Dalrymple, Duncan, Eisele, F. A. Frey, Fekiacova, Foley, Foley, Fornari, Frey, Frey, Frey, Frey, Frey, Frey, Galer, Garcia, Garcia, Garcia, Green, Haase, Hanan, Hart, Hickey-Vargas, Hofmann, Hofmann, Hofmann, Hofmann, Huang, Huang, Irving, Janney, Keller, Keller, Kempton, Kinman, Kinzler, Kirkpatrick, Langmuir, Lanphere, Lassiter, Lassiter, Lassiter, LaTourrette, Li, Lipman, Longerich, Longhi, Lonsdale, Lonsdale, M. Regelous, Macdonald, Mammerickx, Mengel, Moore, Mueller, Niu, Niu, Niu, Norman, Parsons, Putirka, Rea, Regelous, Regelous, Rhodes, Rhodes, Ribe, Roden, Roden, S. Huang, Schmidt, Schmitz, Sharp, Sinton, Sisson, Sleep, Sobolev, Staudigel, Stein, Stille, Stolper, Sturm, Sun, T. Thordarson, Tarduno, Tatsumoto, Thompson, van Westrenen, Villemant, Walter, Wendt, White, Wilson, Yang, Yang   +115 more
core   +1 more source

Ediacara Obscura: Unveiling Hidden Magnetisations in the Fen Complex, Southern Norway

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Paleomagnetic directions found in Ediacaran (635–539 Ma) rocks are widely dispersed, which has led to conflicting hypotheses about tectonic regimes and geomagnetic field behavior during this period, and raised doubts about the fidelity of the paleomagnetic record.
Justin A. D. Tonti‐Filippini, Paul Y. J. Antonio, Sven Dahlgren, Rosa de Boer, Leandro Gallo, Petter Silkoset, Bertwin de Groot, Lennart de Groot, Mathew Domeier   +8 more
wiley   +1 more source

Experimental petrology constraints on kamafugitic magmas [PDF]

European Journal of Mineralogy
Kamafugites are rare volcanic igneous rocks, characterized by the presence of kalsilite and variable amounts of leucite, nepheline, melilite, clinopyroxene, olivine and phlogopite, which may not necessarily be present all together. Kamafugites are silica-
F. Innocenzi, F. Innocenzi, F. Innocenzi, I. S. Ezad, I. S. Ezad, S. Ronca, S. Agostini, M. Lustrino, M. Lustrino, S. F. Foley, S. F. Foley   +10 more
doaj   +1 more source

ONTOGENESIS OF CORUNDUM DEPOSITS OF THE RAY-IZ MASSIF, THE POLAR URALS [PDF]

Минералогия, 2019
Ontogenetic studies of a collection of corundum-bearing plagioclasites and glimmtrites from Rubinovy Log occurrence in the Ray-Iz massif, Polar Urals, indicate a magmatic model of formation of mineralization. The main morphological of feature is eutectic
V.A. Popov, V.M. Vasilyev, I.A. Blinov, V.I. Popova   +3 more
doaj   +1 more source

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 801-818, May 2026.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source

AMPHIBOLE-PHLOGOPITE XENOLITHS FROM KIMBERLITES AS EVIDENCE OF METASOMATIC PROCESSES IN THE LITHOSPHERIC MANTLE BENEATH KUOIKA FIELD

Геодинамика и тектонофизика
This paper devoted to the mantle xenoliths with evidence of modal metasomatic alteration from the Obnazhennaya kimberlite pipe (Kuoika kimberlite field).
T. V. Kalashnikova, S. I. Kostrovitsky, A. M. Dymshits   +2 more
doaj   +1 more source