Making paper models is great for practicing #finemotorskills, learning vocabulary & understanding processes, all while being very proud of what you made!
Find out more about our Structure of a #Volcano paper model here: buff.ly/K0MTNvz
#EduSky #volcanoes #igneousrocks #earthscience #geology
Flow banding (Volcanology 🌋)
Flow banding is a geological term to describe bands or layers that can sometimes be seen in rock that formed from magma. Flow banding is caused by friction of the viscous magma that is in contact with a solid rock interface […]
[Original post on mastodon.social]
Lava coil (Volcanology 🌋)
A lava coil is a spiral or scroll-shaped lava formation occurring when relatively low viscosity lava such as Pahoehoe solidifies along a slow-moving shear zone in the flow. The shear produces a Kelvin–Helmholtz instability that […]
[Original post on mastodon.social]
Local geology: How volcanoes shaped the Tri-Cities
tumbleweird.org/how-volcanoes-shaped-the-tri-cities/
By: Elliz McClelland
Narrated by @shaestrongvo.bsky.social
#columbiariverbasalt #geologyrocks #igneousrocks
#badgermountain #pacificnorthwestnature #exploretricities #pnw #pnwadventures
a quartz grain in a thin section (a polished rock slab mounted on glass), resembling a face, as seen under the petrographic microscope
Last #ThinSectionThursday of the day.
Depressed quartz.
aka an embayed #quartz phenocryst in a foliated #granite
FOV 3 mm
⚒️ #geology #igneousrocks #petrography #science
Laccolith (Petrology 💎)
A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma rising through the Earth's crust begins to spread out horizontally, prying apart the host rock strata. The pressure of […]
