Results 81 to 90 of about 13,004 (219)

Late Pliocene–Quaternary Arc Volcanism at the Southern Limit of the Hikurangi Subduction Zone: Revised Chronology of the Taranaki Peninsula, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
Igneous centres across the Taranaki Peninsula represent the southwestern limit of arc volcanism associated with the Tonga–Kermadec–Hikurangi subduction system. Taranaki Maunga, the youngest and largest of three andesitic stratovolcanoes, dominates the geomorphology of the Taranaki Peninsula along with the eroded remnants of the Kaitake and Pouakai ...
G. P. Thrasher, M. W. Sagar, H. Seebeck, G. P. D. Viskovic   +3 more
wiley   +1 more source

(Table 7) Chemistry of clinopyroxene of ODP Hole 115-707C

, 1990
(Table 7) Chemistry of clinopyroxene of ODP Hole 115 ...
Katherine J Howard (6959831), Fisk, Martin R, Martin R Fisk (6959828), Howard, Katherine J   +3 more
core   +1 more source

Permian sedimentary sequence containing analcimolite and authigenic aegirine from the Boskovice Basin (Bohemian Massif, Czechia)

The Depositional Record, Volume 12, Issue 5, November 2026.
The Permian freshwater lacustrine sedimentary sequence rich in analcime, with unusual authigenic aegirine and NaFe3+ clinopyroxene. Product of ashfall directly linked with fossil accumulation (Konzentrat‐Lagerstätte). Abstract The Early Permian freshwater lacustrine sedimentary sequence in the vicinity of Bačov (Czechia) is world‐famous for its rich ...
Jakub Jirásek, Dalibor Matýsek, Martin Kašing, Daniel Šimíček   +3 more
wiley   +1 more source

(Table 7) Geochemistry of clinopyroxene from DSDP Hole 81-553A

, 1984
(Table 7) Geochemistry of clinopyroxene from DSDP Hole 81 ...
Wheatley, C W, Evans, Jane, Judge, V A, Merriman, Richard J, Jane Evans (3225753), V A Judge (6967313), Hutchison, Dawn, Davis, A E, C W Wheatley (6967316), Harrison, R K, Holmes, K A, Richard J Merriman (6965819), R K Harrison (6967289), K A Holmes (6967307), A E Davis (6967304), Joseph, Philippe, Dawn Hutchison (6967301), Philippe Joseph (6967310)   +17 more
core   +1 more source

Phase diagram and thermal expansion of orthopyroxene-, clinopyroxene-, and ilmenite-structured MgGeO3 [PDF]

, 2021
The MgGeO3 system is a low-pressure analog for the Earth-forming (Mg,Fe)SiO3 system and exhibits recoverable orthopyroxene, clinopyroxene, and ilmenite structures below 6 GPa.
Dobson, DP, Wood, IG, Hunt, SA, Santangeli, JR   +3 more
core   +1 more source

Petrogenesis of Tarq-Mazdeh volcanic rocks based on clinopyroxene chemistry (South of Natanz, Urumieh Dokhtar volcanic belt)

Journal of Economic Geology, 2019
Introduction Clinopyroxene is one of the most common of the rock forming minerals. Its long formation period (from the earliest crystallization of magma in the core of phenocrysts to the final microcrystalline crystallization in the rock background) can
Marzieh Ghadirpour, Jamshid Ahmadian, Shahzad Sherafat, Mohammad Ali Mackizadeh   +3 more
doaj   +1 more source

Pyroxenites and Megacrysts From Alkaline Melts of the Calatrava Volcanic Field (Central Spain): Inferences From Trace Element Geochemistry and Sr-Nd Isotope Composition

Frontiers in Earth Science, 2020
Alkaline volcanic rocks from explosive monogenetic centers often carry an unusual cargo of crystals and rock fragments, which may provide valuable constraints on magma source, ascent and eruption.
Carlos Villaseca, Carlos Villaseca, Javier García Serrano, David Orejana   +3 more
doaj   +1 more source

Geochemical Characteristics of Metasediment—Rich Lower Continental Crust: Insights From the Ivrea‐Verbano Zone (DIVE Drilling Project, ICDP Expedition 5071, Val d’Ossola, Italy)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract Whole‐rock geochemical data from two drill cores obtained through the ICDP (International Continental Scientific Drilling Program) funded Drilling the Ivrea‐Verbano Zone (IVZ) (DIVE) project: 5071_1_B (Ornavasso) and 5071_1_A (Megolo), provide new insights into the composition of the lower continental crust (LCC) in the IVZ. Borehole 5071_1_B (
Alexia Secrétan, Othmar Müntener, Benjamin Klein, Sarah Degen, Luca Pacchiega, Junjian Li, Mattia Pistone, Kim Lemke, György Hetényi, Jörg Hermann   +9 more
wiley   +1 more source

A Late Cretaceous Aborted Spreading Center in the Northern Arabian Sea Recorded by the Laxmi Basin

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract The Laxmi Basin (LB), a marginal depression, is a prominent geomorphic feature in the northern Arabian Sea. Understanding how the basin formed has important implications for the India–Seychelles breakup and the evolution of the western Indian Ocean.
Sibin Sebastian, Jyotiranjan S. Ray
wiley   +1 more source

Hydrothermal Sealing at Turrialba, Poás, and Rincón de la Vieja Volcanoes (Costa Rica) Promotes Phreatic and Phreatomagmatic Eruptions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract Hydrothermal sealing is a mechanism thought to be responsible for challenging‐to‐forecast phreatic and phreatomagmatic eruptions. To better understand this process, we present a study in which we assessed the textural, mineralogical, and physical properties (porosity, permeability, and tensile strength) of blocks of hydrothermal seal that were
Michael J. Heap, Geoffroy Avard, Claire E. Harnett, H. Albert Gilg, James Hickey, Thierry Reuschlé, Fabian B. Wadsworth, Maëlys Moulin, Sophie Pearson‐Grant, J. Maarten de Moor, Emily Mick, Patrick Baud   +11 more
wiley   +1 more source