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An experimental investigation of olivine morphology
Olivine crystals can adopt ten types of shape. Experimental crystallization of eight rock melts shows that there is a systematic change from polyhedral or granular olivines → hopper olivines →Expand
Geochemical Evolution of the Tertiary Mull Volcano, Western Scotland
The early Tertiary Mull volcano, western Scotland, is one of the most dissected and best exposed igneous complexes of the North Atlantic Province. The new and published geochemical data enable us toExpand
The rates of dissolution of olivine, plagioclase, and quartz in a basalt melt
The dissolution rates of spheres of two magnesian olivines, two plagiodases, and quartz in tholeiitic basalt have been determined at three super- liquidus temperatures and one-atmosphere pressure.Expand
Calculated diffusion coefficients and the growth rate of olivine in a basalt magma
Abstract Concentration gradients in glass adjacent to skeletal olivines in a DSDP basalt have been examined by electron probe. The glass is depleted in Mg, Fe, and Cr and enriched in Si, Al, Na, andExpand
Laboratory duplication of comb layering in the Rhum pluton. [igneous rocks with comb layered texture]
SUMMARY. The changes in olivine morphology and grain size upwards through comb-layered olivine eucrite and peridotite varieties of harrisite in the Rhum layered pluton are systematic, from abundantExpand
Caldera formation in the Rum Central Igneous Complex, Scotland
Abstract. The Northern Marginal Zone of the Rum Central Igneous Complex in NW Scotland represents part of the early, felsic phase of the volcano. The marginal zone is a relic of the early calderaExpand
The Igwisi Hills extrusive “kimberlites”
Abstract The Igwisi Hills are a group of volcanic hills in Tanzania where a unique series of eruptions has produced volcanic rocks that have many of the features of kimberlites. The rocks areExpand
Experimental modeling of the cooling history of Apollo 12 olivine basalts
An analog of the Apollo 12 olivine vitrophyres has been crystallized in a 1-atm gas-mixing furnace at cooling rates ranging between 1250 and 0.7 C/hr and isothermally at degrees of supercoolingExpand