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The compressibility of silicate liquids containing Fe2O3 and the effect of composition, temperature, oxygen fugacity and pressure on their redox states
- V. Kress, I. Carmichael
- Geology, Chemistry
- 1 July 1991
Ultrasonic longitudinal acoustic velocities in oxidized silicate liquids indicate that the pressure derivative of the partial-molar volume of Fe2O3 is the same in iron-rich alkali-, alkaline earth-…
The redox states of basic and silicic magmas: a reflection of their source regions?
- I. Carmichael
- Geology
- 1991
At present the best estimates of the oxygen fugacity of spinel-lherzolites that could be the source material of basic magmas is about five log units below the Ni−NiO buffer to one above it. However…
Oxidation states of mid-ocean ridge basalt glasses
- D. Christie, I. Carmichael, C. Langmuir
- Geology
- 1 September 1986
Densities of Na2O-K2O-CaO-MgO-FeO-Fe2O3-Al2O3-TiO2-SiO2 liquids: New measurements and derived partial molar properties
- R. Lange, I. Carmichael
- Chemistry
- 1 November 1987
The 1982 eruptions of El Chichón Volcano, Chiapas, Mexico: Mineralogy and petrology of the anhydritebearing pumices
- J. Luhr, I. Carmichael, J. Varekamp
- Geology
- 1 December 1984
The hydrous phase equilibria (to 3 kbar) of an andesite and basaltic andesite from western Mexico: constraints on water content and conditions of phenocryst growth
- G. Moore, I. Carmichael
- Geology
- 24 February 1998
Abstract We have conducted high pressure (to 3 kbar), water saturated melting experiments on an andesite (62 wt% SiO2) and a basaltic andesite (55 wt% SiO2) from western Mexico. A close comparison…
The Petrology of Thingmuli, a Tertiary Volcano in Eastern Iceland
- I. Carmichael
- Geology
- 1964
The Tertiary flood-basalt sequence of eastern Iceland is intermittently disturbed by central volcanic activity with the voluminous eruption of acid magma. Associated with one of these central…
The ferric-ferrous ratio of natural silicate liquids equilibrated in air
- A. Kilinc, I. Carmichael, M. Rivers, R. Sack
- Geology
- 1 August 1983
AbstractResults of chemical analyses of glasses produced in 46 melting experiments in air at 1,350° C and 1,450° C on rocks ranging in composition from nephelinite to rhyolite have been combined with…
An empirical model for the solubility of H2O in magmas to 3 kilobars
- G. Moore, T. Vennemann, I. Carmichael
- Geology
- 1 February 1998
Abstract We present 16 new manometric determinations of H2O solubility for a range of natural silicate liquid compositions equilibrated up to 3 kbar of H2O pressure. As the threshold temperature of…
The andesite aqueduct: perspectives on the evolution of intermediate magmatism in west-central (105–99°W) Mexico
- I. Carmichael
- Geology
- 30 May 2002
Abstract Intermediate calc-alkaline magma (52–65% SiO2) in western-central Mexico is the focus of this paper, and the typically porphyritic andesites (57–65% SiO2) form large central volcanoes,…
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