منابع مشابه
Silicate Melt Properties and Volcanic Eruptions
[1] Knowledge about the properties of silicate melts is needed by volcanologists and petrologists to evaluate the dynamics of volcanic eruptions and magmatic processes. These properties include the solubility and diffusivity of volatile components in silicate melts, silicate melt viscosity, and the fragmentation condition. Data and models of each property are reviewed and assessed. For rhyoliti...
متن کاملHeterogeneous crystal nucleation on bubbles in silicate melt
Experiments reported herein document heterogeneous crystal nucleation on bubbles in supercooled lithium disilicate melt. Crystalline lithium disilicate (Li2Si2O5) nucleated and grew on small bubbles (;1 mm) with a one-to-one correspondence between the number of bubbles and crystals (ranging from ,102 to ;105 bubbles/mm3). Crystals grew on large bubbles (.100 mm) only in samples fused in N2, sug...
متن کاملTransport properties of carbonated silicate melt at high pressure
Carbon dioxide, generally considered as the second most abundant volatile component in silicate magmas, is expected to significantly influence various melt properties. In particular, our knowledge about its dynamical effects is lacking over most of Earth's mantle pressure regime. Here, we report the first-principles molecular dynamics results on the transport properties of carbonated MgSiO3 liq...
متن کاملTrace element partitioning between wollastonite and silicate-carbonate melt
We have performed an experimental study of the influence of varying size and charge on cation partitioning between wollastonite and silicate-carbonate melt in the system CaCO3-SiO2. The experimental conditions (3 GPa, 14208C) lie close to the wollastonite II tc/I tc phase boundary. Results for 1+, 2+, 3+ and 4+ partitioning show parabolic dependence of partition coefficients on ionic radius, wh...
متن کاملStatic and Dynamic Properties of a Viscous Silica Melt
We present the results of a large scale molecular dynamics computer simulation in which we investigated the static and dynamic properties of a silica melt in the temperature range in which the viscosity of the system changes from O(10) Poise to O(10) Poise. We show that even at temperatures as high as 4000 K the structure of this system is very similar to the random tetrahedral network found in...
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ژورنال
عنوان ژورنال: Transactions of the Iron and Steel Institute of Japan
سال: 1975
ISSN: 0021-1583,1881-1183
DOI: 10.2355/isijinternational1966.15.235