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#petrology

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to the doctoral program. She was unhelpfully limited in her library & classroom access to shield her from the “rougher influences” of the young men; in her isolation she decided to focus on #petrology. Her thesis “A Contribution to the Geology of South Mountain, Pennsylvania” is regarded as a major contribution to Appalachian geology & she published it in the 1st volume of the Journal of Geology in 1893. She furthered understanding of the east coast of the US & redefined the recognized 🧵3/n

Sorena Sorensen passed away this month.

Sorena was a long-time curator at the National Museum of Natural History of the Smithsonian Institution. She was also an insightful and talented researcher who studied the role of fluids in metamorphism of subduction-related rocks. She also contributed to understanding the formation of jadeite and jade deposits.

News from Elizabeth Cottrell, also at #NMNH

QAPF diagram (Petrology 💎)

A QAPF diagram is a doubled-triangle plot diagram used to classify intrusive igneous rocks based on their mineralogy. The acronym QAPF stands for "Quartz, Alkali feldspar, Plagioclase, Feldspathoid ", which are the four mineral groups used for classification in a QAPF diagram. The percentages of the Q, A, P and F groups are normalized, i.e., recalculated so that th...

en.wikipedia.org/wiki/QAPF_dia

en.wikipedia.orgQAPF diagram - Wikipedia

Here goes my #introduction! Hi all, I am a #geologist specializing in #petrology, #geochemistry and #volcanology both from analytical and #experimental perspectves. Now I study several eruptions in #Tenerife and #LaPalma, #Canary Islands. Although originally from northern Spain, I've spent most of my career between Italy and Germany. I am also into amateur #astronomy, and in fact you can expect some astrophotos here from time to time. I will post in #English, #Spanish and perhaps some #Italian!