Results 51 to 60 of about 9,703 (232)

(Table 1) Geochemistry of clinopyroxene in ODP Hole 140-504B

, 1995
(Table 1) Geochemistry of clinopyroxene in ODP Hole 140 ...
Henry J B Dick (6887306), Johnson, Kevin T M, Kevin T M Johnson (6973082), Dick, Henry J B   +3 more
core   +1 more source

Clinopyroxene/melt trace element partitioning in sodic alkaline magmas [PDF]

, 2019
Clinopyroxene is a key fractionating phase in alkaline magmatic systems, but its impact on metal enrichment processes, and the formation of REE + HFSE mineralisation in particular, is not well understood. To constrain the control of clinopyroxene on REE +
van Hinsberg, Vincent J., Beard, Charles D., Wilke, Max, Stix, John   +3 more
core   +1 more source

Geochemical Characteristics and Their Geological Significance of Zircon and Apatite From the Wunugetushan Porphyry Cu–Mo Deposit, Inner Mongolia, NE China

Acta Geologica Sinica - English Edition, EarlyView.
The key factors making the monzogranitic porphyry fertile for mineralization, including its high Cl, S, and H2O contents, high oxidation state, significant fluid exsolution, and multiple recharges of deep‐seated mafic magma, were all critical for the formation of the Wunugetushan porphyry Cu‐Mo deposit. ABSTRACT The Wunugetushan (Wushan) porphyry Cu–Mo
Genyuan JI, Sihong Jiang, Yang Cheng, Hongyan Bao, Huachuan Zhang   +4 more
wiley   +1 more source

Composition of the Tarim mantle plume: Constraints from clinopyroxene antecrysts in the early Permian Xiaohaizi dykes, NW China

, 2015
Numerous alkaline basaltic dykes crosscut the Early Permian Xiaohaizi wehrlite in drill-cores and syenite intrusion in the Tarim large igneous province, NW China.
Feng, Yue-Xing, Xu, Yi-Gang, Zhao, Jian-Xin, Wei, Xun, Luo, Zhen-Yu   +4 more
core   +1 more source

Deep Magma Storage Revealed by Multi-Method Elemental Mapping of Clinopyroxene Megacrysts at Stromboli Volcano

Frontiers in Earth Science, 2019
The magmatic architecture and physicochemical processes inside volcanoes influence the style and timescale of eruptions. A long-standing challenge in volcanology is to establish the rates and depths of magma storage and the events that trigger eruption ...
Teresa Ubide, John Caulfield, Claire Brandt, Yannick Bussweiler, Yannick Bussweiler, Silvio Mollo, Silvio Mollo, Flavio Di Stefano, Manuela Nazzari, Piergiorgio Scarlato   +9 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

The Role of Clinopyroxene on the Rheology of Dry Olivine–Clinopyroxene Aggregates

Minerals
To investigate the influence of a second-phase mineral on the rheology of mantle peridotite, we conducted high-temperature deformation experiments on dry olivine–clinopyroxene (Ol-Cpx) aggregates. Cylindrical samples were manufactured using hot-isostatic pressing techniques, with Ol as the matrix phase and Cpx added at volume fractions of fCpx = 0.1, 0.
Xiaodong Zheng, Zhexuan Jiang, Jianfeng Li, Maoshuang Song   +3 more
openaire   +1 more source

Re-evaluating stoichiometric estimates of iron valence in magmatic clinopyroxene crystals

, 2023
Clinopyroxene is a major rock forming mineral capable of incorporating diverse metal cations. As a consequence, clinopyroxene preserves valuable archives of magmatic processes. Understanding clinopyroxene is thus essential for understanding Earth’s wider
McCammon, Catherine, Hartley, Margaret E., Stewart, Alexander G.; id_orcid, Hartley, Margaret E.; id_orcid, Neave, David A.; id_orcid, Stewart, Alexander G., Neave, David   +6 more
core   +1 more source

Mineral associations in the rocks and metamorphism conditions of the Kandalaksha gabbro-anorthosite massif (Kola Peninsula)

Литосфера, 2016
The composition of mineral associations was studied in the main varieties of the rocks within the metamorphosed Kandalaksha gabbro-anorthosite massif in the southern part of the Kola Peninsula.
V. V. Chashchin, E. N. Steshenko, Ye. E. Savchenko, Ya. A. Pakhomovsky, A. V. Bazai   +4 more
doaj   +2 more sources

Reaction‐Driven Development of Fine‐Grained Plagioclase Networks Influences the Rheology of the Crust in the Bergen Arcs, Norway

Journal of Metamorphic Geology, EarlyView.
ABSTRACT In the middle to lower continental crust, mineral reactions can play a key role in controlling rheological behaviour by generating fine‐grained, mechanically weak domains. In granulite‐facies rocks from Krossøy (Bergen Arcs, Norway), we document how garnet breakdown produced interconnected networks of orthopyroxene + plagioclase ± spinel that ...
Lorena H. Filiberto, Håkon Austrheim, José Alberto Padrón‐Navarta, Andrew Putnis, Christine V. Putnis   +4 more
wiley   +1 more source