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  • Marisa Acosta

Summer 2019

This summer's been a full one, and I had the opportunity to meet many wonderful people and see some new places.


I was able to attend the international Microscopy and Microanalysis 2019 conference in Portland, Oregon, early August.


Then I managed to find my way to the tailings piles of the abandoned Bohemia mine in the Umpqua National Forest. Tailings piles are neat places if you like "punky" rocks.



Also managed a few neat trips to the ever-beautiful Oregon coast.


Wave (and a little bit of wind) sorting of coarse sand. The shiny white stuff is muscovite-rich sediment (from where?). I think it's beautiful how the larger objects like the pebbles and beachwood and shell bits change the fluid flow pattern, creating these cool textures.




Grade A exposures of a basaltic phreatomagmatic eruption overlain by beach deposits and a soil. Can find pillow textures (right-most image) in some of the clasts.




And of course the Oregon sand dunes, which are the weathered products of the proximal Tyee sandstone, are perpetually spectacular.



Also managed to see a few neat nature things in the Southern Cascades, such a cauliflower fungus (gross), some blooming wildflower mountain meadows,a couple of spectacular volcano views, and the rare Fender's blue butterflies.


I was lucky enough to attend Goldschmidt 2019, in Barcelona, Spain, and present a poster on some of my dissertation research.



I learned a lot and met a bunch of smart people. Also, Barcelona was cool af. I ended up staying right near the Sagrada Familia (pictured above) and was within walking distance to the beach/some outcrop of a poorly lithified sandstone on a hill.



Most notably, however, I found fossils in the floor of the convention center! Ammonites for the win.


I suppose that those are the highlights, save for a pleasure trip to Minnesota where I saw a lot of cool geology that will likely be the subject of a future blog post.

University of Oregon

Department of Earth Sciences

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