#xenolith — Public Fediverse posts

@oldclumsy_nowmad @mineralsocamerica.bsky.social @FaithfullJohn

This EBSD scan was part of an M.Sc. thesis by Arvid Gonzalez -we're working getting it published, but in the meantime, his unpublished thesis can be downloaded from:

https://escholarship.mcgill.ca/concern/theses/cf95jh65k?locale=en

#Mantle #Xenolith #Cordillera #Petrology

This is one of the dykes found near Ayer's Cliff, just SE of Magog, Quebec. It's a set of three dykes, one of which has the deep-derived xenoliths. That one dyke (not photogenic) has weathered much faster, perhaps due to a higher carbonate content.
#kyanite #MinCup25 #Quebec #Xenolith #Grenville #Appalachians

Wednesday, early afternoon posters at #AGU23
MR31B-0084 Effects of melt-rock interactions on deformation fabrics and rock physical properties in the shallow mantle lithosphere
James Kirkpatrick presenting, but this is the the M.Sc. work of Arvid Gonzalez (now core-logging in n. QC). Other authors are myself and Caroline Seyler (U. Minnesota).

Arvid found that infiltrating mafic melt reduces the preserved strain in mantle olivine.
#McGillUniversity #Mantle #EBSD #Xenolith #Lithosphere #Olivine