More flowers from Minas Gerais
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Kiana Khansmith

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"I'm Dorothy Gale from Kansas"
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YOU ARE THE REASON

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he wasn't even looking at me and he found me
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2025 on Tumblr: Trends That Defined the Year
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More flowers from Minas Gerais
Precambrian Geologic History of Brazil field trip
Last week, we went to Minas Gerais to study the Brazilian Precambrian Geology. We visited parts of the São Francisco Craton and the Araçuaí Mobile Belt, between the Serra do Cipó and the town of Bom Despacho.
Here are a picture of the Serra do Cipó and a picture of a metadolomite. In these days of field trip, we study some geological features we hadn't studied before.
Flowers from Itumirim-Itutinga region in Minas Gerais, Brazil
These are some flowers I saw in a Cerrado region in Minas Gerais during my last field trip.
Pics from the first stage of geological mapping
"Phases of Saturn's rings." A fourteen weeks course in descriptive astronomy. 1870.
Internet Archive
Metamorphic petrology field trip to Minas Gerais countryside
Some pictures of the metamorphic petrology field to the region of Ponte Nova in the Minas Gerais countryside. We described lots of rocks theses days. We had to describe some really weathered rocks since here in Brazil weathered rocks are more common than fresh rocks and we'll probably work with rocks in that condition. But it was very fun at the end!
Inspired by @joemomrgneissguy
Some time ago I was working with an old archive, looking for any geological documents, and found this:
It's a drill log from a geological expedition to Siberia in 1918. I often think about the men who kept it. The log starts in January, the Russian revolution happened just a few months before, probably while they were in the field. The country was in turmoil, the world was changing. And there these people were, in harsh Siberian winter, with a steam powered drill, paving the way for mining operations that are active to this day. Text on the right says they didn't work from 27th of January to 4th of February, because part of the team was Chinese and they were celebrating lunar new year. What was it like? There were no names in this log, but I know these people were out there. And I think that is a connection to the past that history books can't give.
It's such an interesting document
Amphibolite boudinage in thin section.
We can see some interesting features:
1. The recristalization of plagioclase and pyroxene.
2. Microfractures in plagioclase.
3. Pyroxene being recristalized into amphibole.
Long time since the last time I posted thin sections here haha
reblog if it’s totally chill for your mutuals to slide into your DMs and start a random convo just to vibe and maybe become friends 💬✨
Structural geology field trip to Minas Gerais countryside, part 2
More folds and some fractures.
I love every time we have field trips to Minas Gerais, it's such a nice State.
Structural geology field trip to Minas Gerais countryside, part 1
While in the Carrancas region, in the countryside of Minas Gerais, we saw lots of folds. I'm in love with folds!! They're such beautiful structures.
Since Brazil is a tropical country, the rocks undergo intense weathering, but we still can see lots of nice things.
Structural geology field trip to Rio de Janeiro countryside, part 2
This day we went to a river in shear zone, it's such a beautiful place! We saw more kinematic indicators, this time, besides feldspar and garnet porphyroclasts, we also saw boudinage structures. The geologist Haakon Fossen, author of some structural geology books, studied this region in the past.
Men stand beside a volcano’s crater eighteen months after an eruption on Tristan da Cunha Island, 1964.Photograph by James P. Blair, National Geographic Creative
Grape agate just sitting there looking deliciously purple and edible... anyone else having to resist the urge to take a bite?
Photo: zamstone_id
Moch Zamzam
What do you think about this Cherry Red Vanadinite Specimen with Big, Lustrous Crystals 🍒🍒 From Mibladen, Midelt, Morocco ✨
Video: Pacific Minerals