Results 71 to 80 of about 19,778 (275)

Fabrication of a Functional Composite Material Using Waste Concrete Powder and Polyethylene

open access: yesPolymer Composites, EarlyView.
Preparation and experimental verification of functional composite materials using waste concrete powder and polyethylene. ABSTRACT This study investigated the fabrication of a functional composite material using waste concrete powder (WCP), which is a novel method for effectively utilizing waste concrete.
Yasuyuki Kanda, Tsuguri Kusumoto
wiley   +1 more source

The Missing Magmas of MOR: Insights From Phase Equilibrium Experiments on Plagioclase Ultraphyric Basalts

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Plagioclase ultraphyric basalts (PUBs) are a class of mid‐ocean ridge (MOR) lavas found in a variety of ocean floor environments, are characterized by abundant (15–40 volume %) plagioclase megacrysts and a diverse trace element and isotopic signature ...
Gokce K. Ustunisik   +2 more
doaj   +1 more source

Weakening and strain localization produced by syn-deformational reaction of plagioclase

open access: yes, 2001
There are many observations in naturally deformed rocks on the effects of mineral reactions on deformation, but few experimental data. In order to study the effects of chemical disequilibrium on deformation we have investigated the hydration reaction ...
Stünitz, Holger, Tullis, Jan
core   +1 more source

The influence of water in silicate melt on aluminium excess in plagioclase as a potential hygrometer [PDF]

open access: yes, 2018
Measuring water contents of magmas is fundamental to resolving a number of geological questions, such as the mechanisms of silicic magma evolution, the triggering of volcanic eruptions, and the formation of porphyry copper deposits. This study focuses on
Storck, Julian-C.   +5 more
core   +1 more source

The Age and Origin of Block Deposits in the Victorian Alps, Australia

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows   +4 more
wiley   +1 more source

The Mobility of Major and Trace Elements in EOC Minerals on Parent Chondrite Bodies

open access: yesGeosciences
The combined EPMA and SIMS study of the geochemical features of olivine, low-Ca pyroxene and plagioclase in equilibrated ordinary chondrites (EOCs) has revealed the effect of thermal metamorphism on trace element concentrations in EOC silicate minerals ...
Kristina Sukhanova, Sergey Skublov
doaj   +1 more source

The origin of Proterozoic massif-type anorthosites: Evidence from interactions between crustal xenoliths and basaltic magma [PDF]

open access: yes, 1999
Plagioclase-rich reaction zones occur around numerous aluminous crustal xenoliths within a suite of Palaeogene sub-volcanic basic sheets on the Isle of Mull, NW Scotland.
Preston, R.J.   +2 more
core  

(Table A1) Microprobe analysis of plagioclase around fluid inclusions in Gruber Fjella Anorthosite-sample 1583

open access: yes, 2002
(Table A1) Microprobe analysis of plagioclase around fluid inclusions in Gruber Fjella Anorthosite-sample ...
Kleinefeld, Bärbel   +3 more
core   +1 more source

Brittle Structural Control and Fluid Progress of the Jinqingding Gold Deposit: Implications for Epizonal Gold Mineralization

open access: yesActa Geologica Sinica - English Edition, EarlyView.
High‐grade orebodies are controlled by stress field with σ1 oriented NE‐SW during the main mineralization stage.Inferred NEE‐trending strike‐slip fault control another orebody distribution. ABSTRACT The Jinqingding gold deposit in eastern Jiaodong is a significant gold mineralization within the Muping–Rushan metallogenic belt.
Xiaohu Wang   +10 more
wiley   +1 more source

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

open access: yesActa 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   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy