Anna Ruefer

A grayscale back scattered electron (BSE) image of a feldspar with a dark, patchy, resorbed core, from which a bright oscillatory zoned region has grown.

Multiple intergrown oscillatory zoned sanidine crystals emanating from a shared dark, resorbed plagioclase core.

It’s a good day for exploring some wacky BSE zoning textures in feldspar.

17.07.2025 00:19 — 👍 2    🔁 0    💬 0    📌 0

Come check out my #IAVCEI2025 poster tomorrow afternoon (1.7.12; poster 25) to chat about complex supereruption plumbing systems and deep rhyolites!

29.06.2025 04:18 — 👍 29    🔁 6    💬 1    📌 0

10/10 favorite fall deposit!!

16.03.2025 07:22 — 👍 5    🔁 0    💬 1    📌 0

In one step: Insights into shallow differentiation from basalt to rhyolite at Cordón Caulle from rhyolite-MELTS simulations Magma mush systems are commonly invoked as the source from which crystal-melt segregation produces rhyolites, but these systems are rarely observed. T…

New paper out! 🌋 We used rhyolite-MELTS in some unconventional ways on the spectacular Cordón Caulle system and learned that it is feasible that these rhyolites fractionated directly from a basaltic mush. Was such a fun project with great people.

12.03.2025 17:33 — 👍 7    🔁 2    💬 0    📌 0