Liquid Immiscibility in Silicate Melts and Related Systems

Thompson, Alan Bruce; Aerts, Maarten; Hack, Alistair C.

doi:10.2138/rmg.2007.65.4

Cited by 64 publications

(28 citation statements)

References 113 publications

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“…2. Experimental works have shown that pairs of liquids generated by SLI exhibit contrasting chemical compositions (Thompson et al 2007); the chemical differences between the mafic glasses found in the spherules #1664B1,1S and #1664B7,2S (Table 1) are much less marked. 3.…”

Section: Discussionmentioning

confidence: 97%

Evidence for K‐rich terranes on Vesta from impact spherules

Barrat¹,

Bohn²,

Gillet³

et al. 2009

Meteorit & Planetary Scien

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Abstract-The howardite-eucrite-diogenite (HED) clan is a group of meteorites that probably originate from the asteroid Vesta. Some of them are complex breccias that contain impact glasses whose compositions mirror that of their source regions. Some K-rich impact glasses (up to 2 wt% K 2 O) suggest that in addition to basalts and ultramafic cumulates, K-rich rocks are exposed on Vesta's surface. One K-rich glass (up to 6 wt% K 2 O), with a felsic composition, provides the first evidence of highly differentiated K-rich rocks on a large asteroid. They can be compared to the rare lunar granites and suggest that magmas generated in a large asteroid are more diverse than previously thought.

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Section: Discussionmentioning

confidence: 97%

Evidence for K‐rich terranes on Vesta from impact spherules

Barrat¹,

Bohn²,

Gillet³

et al. 2009

Meteorit & Planetary Scien

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“…A range of volcanic mechanisms are theoretically responsible for the silicic massif deposits, and may include basaltic underplating ( Hagerty et al, 2006;Glotch et al, 2010 ), or shallow KREEPbasalt intrusion (e.g., Jolliff et al, 2011 ), possibly in combination with silicate liquid immiscibility (e.g., Thompson et al, 2007 ) following fractional crystallization with gravity separation and stratification. However, current understanding of immiscibility dynamics does not account for its occurrence on scales with the volume of the Lassell massif (km 3 scale).…”

Section: Low-reflectance Depositsmentioning

confidence: 99%

The Lassell massif—A silicic lunar volcano

Ashley

Robinson

Stopar

et al. 2016

Icarus

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“…However, the terminology is not clear for intermediate hydrothermal liquids with salinities of 50-80 wt.%, which are often called hydrosaline liquids (e.g., Webster et al, 1999;Fulignati et al, 2001;Halter and Webster, 2004). The coexistence of a silicate melt, immiscible chloride melt (or hydrosaline liquid) and low-salinity hydrothermal fluid (or vapor) was demonstrated in a pioneering study of quartz-and feldspar-hosted melt inclusions in a granitic block from Ascension island (Roedder and Coombs, 1967), and has been subsequently documented in numerous melt inclusion studies in a diversity of rocks (Roedder, 1992;Frezzotti, 2001;Fulignati et al, 2001;Webser, 2004;Kamenetsky, 2006;Kamenetsky and Kamenetsky, 2010), and also in experiments on synthetic compositions Thompson et al, 2007). However, accurate chemical analyses of coexisting melts are rare, mainly because of the preparation and analytical difficulties.…”

Section: Introductionmentioning

confidence: 96%