Results 101 to 110 of about 9,703 (232)

Sodium partitioning between clinopyroxene and silicate melts

Journal of Geophysical Research: Solid Earth, 1995
We present a quantitative model for Na partitioning between clinopyroxene and silicate melt, applicable in the range 0.1 MPa to 6.0 GPa, 1000–2000°C over a wide span of composition. Our model is derived from the Jadeite melting equilibrium, via the relationship ΔGƒ(P,T) = −RTlnKƒ = RTlnD*Na where ΔGƒ(P,T) is the Gibbs free energy of fusion of Jadeite ...
Blundy, JD, Falloon, TJ, Wood, BJ, Dalton, JA   +3 more
openaire   +1 more source

(Table 5) Chemical composition of clinopyroxene and plagioclase included in clinopyroxene and glass inclusions in ODP Sample 126-792E-47R-1,15-20

, 1992
(Table 5) Chemical composition of clinopyroxene and plagioclase included in clinopyroxene and glass inclusions in ODP Sample 126-792E-47R-1,15 ...
Yuasa, Makoto, Terada, Shoichi, Teruo Watanabe (6965804), Makoto Yuasa (1413724), Fujioka, Kantaro, Tadao Hirama (6965807), Shoichi Terada (2686441), Hirama, Tadao, Watanabe, Teruo, Kantaro Fujioka (5070473)   +9 more
core   +1 more source

Deep Origin and Shallow Launch for the Etna 122 B.C. Mafic Plinian Eruption

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Basaltic Plinian eruptions challenge our understanding of explosive volcanism. The 122 B.C. Plinian eruption of Etna ranks among the most powerful mafic explosive events known. Here, we combine volatile barometry of 122 B.C. from olivine‐hosted melt and fluid inclusions with comparative data from the sub‐Plinian Fall Stratified eruption at ...
M. Gavrilenko, E. Gazel, K. Dayton, A. Barth, T. Plank, E. G. Huggins, B. Houghton   +6 more
wiley   +1 more source

The stability of an eclogitic clinopyroxene in the Earth’s mantle: an experimental investigation

, 2017
The transport of chemical elements down into the Earth’ s transition zone and lower mantle is strongly affected by the stability of minerals as function of pressure and temperature. Whether the slab stagnates or sinks depends on the density and viscosity
Barbara Bonechi, Vincenzo Stagno, Steeve Greaux, Marco Caruso, Piergiorgio Scarlato   +4 more
core  

Transformation of Refractory Oceanic Lithospheric Mantle by Reactive Melt Infiltration: An Experimental Study on the Roles of Temperature, Melt Volume and Ascent Velocity

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Reactive melt infiltration critically modifies the physical and chemical properties of the oceanic lithospheric mantle (OLM). This process, involving melt‐rock reactions and in situ crystallization, exhibits substantial spatial and temporal variability driven by melt volume and ascent velocity.
Yong‐Sheng Hou, Hong‐Yan Li, Chao Zhang, Yu Wang, Yi‐Gang Xu   +4 more
wiley   +1 more source

Grapevine rootstocks in K- and Ca-rich volcanic soils: The effect of mineral assemblage on nutrient uptake efficiency

OENO One
This study examines element mobility in volcanic soils to evaluate the relationships between mineral assemblage and the uptake capacity of rootstocks. The Gravesac rootstock, which appears to have a low capacity to selectively absorb K, Ca, Mg, and Na ...
Mario GAETA, Paula Pacheco, Luca Aldega, Maria Luisa Astolfi, Eugenio Giannessi, Cristina Perinelli   +5 more
doaj   +1 more source

Investigating Technology and Raw Materials Source of the Archaic and Classical Architectural Terracottas From the Athenaion in Castro (Apulia, Italy)

Archaeometry, Volume 68, Issue 3, Page 512-526, June 2026.
ABSTRACT Since 2000, archaeological excavations have brought to light the sanctuary of Athena in Castro (Apulia, Italy), including terracotta roofs dated between the 6th and 4th centuries bce. Based on their morphological and stylistic features, it is suggested that the terracotta items were manufactured in the Greek colony of Taras (modern Taranto ...
M. M. N. Franceschini, T. Ismaelli, S. Vettori, L. Chelazzi, S. Ciattini, F. Di Benedetto, C. Grifa, E. Cantisani   +7 more
wiley   +1 more source

(Table 2) Geochemistry of clinopyroxene at DSDP Hole 76-534A

, 1983
(Table 2) Geochemistry of clinopyroxene at DSDP Hole 76 ...
Logothetis, John, John Logothetis (6972932)   +1 more
core   +1 more source

Geochemistry of pillow lavas and their clinopyroxene: ophiolitic mélanges of Nain and Ashin, northeastern Isfahan province

Journal of Economic Geology, 2016
The Nain and Ashin ophiolites are located in northeastern Isfahan province, in western Central-East Iranian Microplate. Pillow lavas are one of the most significant Cretaceous rock units.
Nargess Shirdashtzadeh, Ghodrat Torabi, Ramin Samadi   +2 more
doaj  

Jadeite in Continental Subduction: Its Preservation, Breakdown and Pseudomorphic Replacement in Erzgebirge UHP Gneisses

Journal of Metamorphic Geology, Volume 44, Issue 5, Page 376-393, June 2026.
ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa, Martin Racek, Petr Jeřábek, Benjamin Paddon   +3 more
wiley   +1 more source