Dr Josh Shea | Geochemist
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drjoshuashea.bsky.social
Dr Josh Shea | Geochemist
@drjoshuashea.bsky.social
🧪 Geochemist & 🪨 Igneous Petrologist | Postdoc at Cambridge.
I study how Earth’s mantle melts, moves, and shapes our planet’s volcanic history - and what that tells us about other worlds. 🌍🪐
These samples also give great context to a sample residing on my desk from Byrock, that I collected during my PhD. (5/5)
January 12, 2024 at 3:16 PM
Rummaging through samples in Sedgwick Museum here at Cambridge I found most of the original samples in storage! I have read each publication and carried out fieldwork at each site, so seeing these thin sections here helps bring home closer while postdoc-ing far away from Australia. (4/5)
January 12, 2024 at 3:16 PM
Later, in August 1892 Stonier collected leucite bearing rocks south of El Capitan at Lake Cargelligo and reported it in 1883, along with other leucite-bearing rocks at Bygalorie and Harden. With the first detailed description of the Harden occurrence published by Harvey and Joplin (1940). (3/5)
January 12, 2024 at 3:16 PM
Although not the first, the first was slightly north to El Capitan at Byrock (1887), when published by David and Anderson (1889) it was accompanied by the first bulk analyses from both Byrock and El Capitan, showing geochemically the existence of ultrapotassic igneous rocks in Australia. (2/5)
January 12, 2024 at 3:16 PM
Thanks mate!
October 17, 2023 at 1:19 PM