Journal ArticleDOI
An interlaboratory comparison of piston-cylinder pressure calibration using the albite-breakdown reaction.
W. Johannes,Peter M. Bell,Ho-kwang Mao,A. L. Boettcher,D. W. Chipman,J. F. Hays,Robert C. Newton,F. Seifert +7 more
TLDR
In this article, an attempt is made to compare pressure calibration methods among several laboratories in an unbiased way to produce some indication of the bandwidth of observations on the pressure of an equilibrium reaction where sources of discrepancy not resulting from pressure calibration are likely to have been eliminated.Abstract:
An attempt is made to compare pressure calibration methods among several laboratories in an unbiased way to produce some indication of the bandwidth of observations on the pressure of an equilibrium reaction where sources of discrepancy not resulting from pressure calibration are likely to have been eliminated. The reaction chosen is the breakdown of albite to jadeite and quartz under pressure.read more
Citations
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The reaction albite = jadeite+quartz determined experimentally in the range 600–1200 ° C
Journal ArticleDOI
Mantle solidus: Experimental constraints and the effects of peridotite composition
TL;DR: In this paper, a review of experiments on natural peridotites allows improved constraints on the location of the mantle solidus, with the best fit to the solidus between 0 and 10 GPa given by T(°C) = aP2 + bP + c where a = −5.104, b = 132.899, and c = 1120.
Journal ArticleDOI
Melting of mantle peridotite at pressures approaching the spinel to garnet transition: Application to mid‐ocean ridge basalt petrogenesis
TL;DR: In this paper, the effects of pressure (P), temperature (T), and variable bulk chemistry on the composition of melts multiply saturated with the minerals present in the upper oceanic mantle: olivine, orthopyroxene, augite, and spinel.
Journal ArticleDOI
The quartz ⇆ coesite transformation: A precise determination and the effects of other components
Steven R. Bohlen,A. L. Boettcher +1 more
TL;DR: In this paper, the reaction reversals to within 0.2 kbar locate the quartz ⇆ coesite equilibrium at 24.6, 24.9, 25.5, 26.2, 27.0, 28.8, and 29.7 kbar at 350, 400, 500, 600, 700, 800, 900, and 1000°C, respectively.
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A phase diagram for mid-ocean ridge basalts: Preliminary results and implications for petrogenesis
TL;DR: In this paper, a primitive mid-ocean ridge basalt (MORB) glass was encapsulated in a mixture of ol and opx and melted at 10, 15, and 20 kbar.
References
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Journal ArticleDOI
Origin of Basalt Magmas: An Experimental Study of Natural and Synthetic Rock Systems
H. S. Yoder,C. E. Tilley +1 more
Journal ArticleDOI
An experimental investigation of the gabbro to eclogite transformation and its petrological applications
David H. Green,A.E. Ringwood +1 more
TL;DR: In this paper, a variety of basaltic compositions have been studied experimentally in the pressure range from 1 bar to 30 kb at temperatures above 1000°C and below the basalt solidus and the mineral assemblages are characterized by coexistence of garnet, clinopyroxene, plagioclase and, commonly, quartz.
Journal ArticleDOI
Apparatus for phase‐equilibrium measurements at pressures up to 50 kilobars and temperatures up to 1750°C
F. R. Boyd,J. L. England +1 more
TL;DR: In this paper, the construction and calibration of apparatus utilizing a solid pressure medium for phase-equilibrium studies at elevated temperatures and pressures are described, and a new determination of the thallium transition, 37.1±1.3 kilobars, is given.
Journal ArticleDOI
Anorthite—Forsterite and Anorthite—Enstatite Reactions and their bearing on the Basalt—Eclogite Transformation
I. Kushiro,H. S. Yoder +1 more
Journal ArticleDOI
Effect of pressure on the melting of diopside, CaMgSi2O6, and albite, NaAlSi3O8, in the range up to 50 kilobars
F. R. Boyd,J. L. England +1 more
TL;DR: The melting curves of albite and diopside have been determined in the pressure range 5 to 50 kb by means of single-stage apparatus as mentioned in this paper, and the results suggest that the effect of pressure on the melting of rocks in the mantle will decrease notably with depth.
Related Papers (5)
Apparatus for phase‐equilibrium measurements at pressures up to 50 kilobars and temperatures up to 1750°C
F. R. Boyd,J. L. England +1 more