Este es un proyecto de gran mural con el que a veces tonteo, mostrando el desarrollo del arco de herradura hispano, desde los visigodos hasta Granada. Hoy os hablo sobre un periodo muy corto pero decisivo, la Taifa zaragozana y los almorávides. ✏👇
Leyendo "Todo lo que hay que sobre geología" de Nahúm Méndez, no solo me he encontrado un montón de faltas de ortografía, sino que encima hay segmentos que se repiten palabra por palabra de una parte del libro a otra.
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Buena parte de EUA y Canada sufre actualmente de un levantamiento después del termino de la ultima Era glacial. Este fenómeno de levantamiento tectonico, regional en geología se le conoce como isostasia
🟥 ⛏️ 🔎 Dioptase with Plancheite from Sanda Hills, Mindouli, Pool, Republic of the Congo forms in the oxidized upper zones of copper deposits within the Niari Syncline.
🎞 Please visit: https://t.co/azK6mwcrg0
🔁 ❤️ Greatly Appreciated
This is where faulted Neoproterozoic limestones and sandstones create permeable pathways for copper‑rich fluids.
As sulphides break down, silica‑bearing solutions circulate through karstic cavities and fractures, precipitating emerald dioptase and later fibrous blue plancheite.
Dioptase develops as trigonal prismatic crystals with sharp rhombohedral terminations, while plancheite forms orthorhombic radiating aggregates that may coat or partially replace earlier dioptase.
Their association records a supergene environment shaped by oxidation, silica mobilization, and long-term mineral replacement, producing one of the Congo’s most vivid copper silicate assemblages.
#DioptaseWithPlancheite
https://t.co/V5vafUFdhu
Gróđurkort af Íslandi - Yfirlitskort - Náttúrufræðistofnun Íslands - 1998
Vegetation Map of Iceland - General Overview - Icelandic Institute of Natural History - 1998
3D Render
#ArcGISPro#b3d#Iceland#geography#GIS
In Germany, there is Lake Geiseltalsee — a former coal mine that was deliberately flooded with water
At a depth of 80 meters beneath the crystal-clear water, real forests, roads, concrete structures, and minerals left from the mine can be found.
Many people online thought the footage was AI-generated, but the images were actually taken by a Swedish photographer Alex Dawson.
Video: alex_dawson_photography/Instagran