Results 51 to 60 of about 13,826 (203)

Fig. 4 Quartz/Pyroxene ratio in Hole 162-983A

open access: yes, 2015
Fig.
Ian R Hall (6965300)   +7 more
core   +1 more source

Spectral reflectace (0.25-2.5μm) of olivine and pyroxene from an ordinary chondrite [PDF]

open access: yes, 1983
P(論文)We measured the diffuse reflectance spectra (0.25-2.5μm) of olivine and pyroxene from the ALH-769 ordinary chondrite (L6). We examined the systematic variations of the spectral reflectances of olivine-pyroxene mixtures. We also measured the spectral
Kinoshita,Mikio   +2 more
core   +1 more source

Martian‑Regolith Simulant Confined Nanogenerators for Wireless Tactile Sensing for Human-Machine Interface. [PDF]

open access: yesSmall
A Martian regolith‐simulant/PDMS triboelectric nanogenerator is developed as an ISRU‐inspired, self‐powered tactile sensor for wireless human–machine interface applications. ABSTRACT Achieving a sustainable energy system for space missions remains challenging due to the continued reliance on Earth‐supplied materials.
Mappoli S, Sonigara KK, Pumera M.
europepmc   +2 more sources

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

open access: yesGeological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos   +6 more
wiley   +1 more source

Pyroxene thermometry of rhyolite lavas of the Bruneau–Jarbidge eruptive center, Central Snake River Plain

open access: yes, 2009
The Bruneau–Jarbidge eruptive center of the central Snake River Plain in southern Idaho, USA produced multiple rhyolite lava flows with volumes of
Nash, Barbara P.   +3 more
core   +1 more source

Estudio y caracterización de vidriados vitrocerámicos basados en piroxeno

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2004
A method was proposed to develop pyroxene-based glass-ceramic glazes. First, was studied, by X-ray diffraction and scanning electron microscopy, the effect of several additives in the monophasic crystallization of pyroxene from glasses in the CaO•MgO ...
Lucas, F.   +3 more
doaj  

High Strength Pyroxene-Based Glass- Ceramic Foams in the Presence of Fe2O3

open access: yesIranian Journal of Materials Science and Engineering, 2020
Strong glass-ceramic foams with a compressive strength of 20 MPa were prepared by adding various amounts of Fe2O3 to a soda lime-based glass composition, and SiC as a foaming agent.
P. Shahsavari   +2 more
doaj  

A ramsayite-type oxide, Ca2Sn2Al2O9

open access: yesActa Crystallographica Section E, 2010
The title compound, dicalcium nonaoxidodistannate(IV)dialuminate, is the second example which crystallizes in the isotypic structure of a pyroxene silicate, Na2Ti2Si2O9 (ramsayite).
Rong Tu   +3 more
doaj   +1 more source

Petrogenesis and Tectonic Setting of Late Mesozoic Felsic Magmatic Rocks in the Wangmushan Mining District, Northern Fujian, South China

open access: yesGeological Journal, EarlyView.
The rhyolitic ignimbrite and K‐feldspar granite porphyry from the Wangmushan mining district, northern Fujian yield ages of 173.8 ± 0.8 and 102.6 ± 0.4 Ma, respectively. Geochemical data, zircon trace elements, whole‐rock Sr–Nd–Pb isotope data, and zircon Hf isotopic compositions indicate that the rhyolitic ignimbrite originated from partial remelting ...
Wei Shaogang   +7 more
wiley   +1 more source

FeO-rich, porphyritic pyroxene chondrules in unequilibrated ordinary chondrites

open access: yes, 1996
A suite of FeO-rich (type II), porphyritic, olivine/pyroxene (POP) chondrules has been studied in detail. Data for ten chondrules from Semarkona (LL3.0) are emphasized, and one chondrule from Chainpur (LL3.4) and two from Parnallee (LL3.6) are included ...
Jones, Rhian H.   +2 more
core   +1 more source

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