Lew Ashwal of U. Witwatersrand died this week. Over decades, his scholarship helped shape modern thinking on magmatic processes and global crustal evolution (from Grant Bybee).
I remember Lew very patiently helping a young geochemist (myself) understand why mountains made of anorthosite were such a difficult and interesting problem to solve.
#Wits #UniversityOfTheWitwatersrand #Anorthosite #Geochemistry #CrustalStructure #KaapvaalCraton
Attention-Worthy Links for December 13th, 2024
#synchronous #memories #electroencephalogram #neocortex #long-term #Jezero #rim #anorthosite #superflares #magnetic #Ionizing #UV #X-rays #century #radiocarbon #Carrington #Peanuts #CBS #commercialism #Guaraldi #Linus #Luke #Geodesy #warped #terrestrial #water #storag
A geochemistry study led by Rice advances our understanding of ancient rock formations. A team of researchers has advanced our understanding of massif-type anorthosites, mysterious rocks that formed exclusively during Earth's middle history. These igneous formations, rich in plagioclase and spannin
Kamestastin Crater's composition of anorthosite makes it one of the most moon-like places on Earth.
The water aside, the physical characteristics of the crater itself resembles strongly those found on the moon.
Thanks for the tip, Dr. Tanya Harrison!
#science #sciencefacts #canada #kamestastinlake #kamestastincrater #anorthosite
Next day went to the South Harris Meta-igneous Complex.
Garnet amphibolite, (metagabbro) and #pseudotachylite.
Fresh #anorthosite has distinctive mauve colouration but weathers to white/pale cream, occasionally showing fine deformation banding.
Garnet replaced by symplectites of clinopyroxene, orthopyroxene, spinel, and plagioclase in a mafic layer within anorthosite, Sognefjord, Norway (Caledonian Upper Jotun Nappe).
Bill Minarik
Nonilex
John Vaccaro (johniac)
💧🌏 Greg Cocks
ScienceActually
Peter L Bowden
Julia Semprich