Geology,
explained.
Clear essays and videos on how the Earth actually works.
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Tap a numbered marker to read what it shows.
1Unconformity
A buried erosion surface. The beds below were folded, faulted and worn down before the flat-lying younger beds settled on top — a gap in the record.
Unconformity in the glossary2Normal fault
A break where the crust stretched. The block on the right slid down along the fault plane, offsetting every layer it cuts.
Normal fault in the glossary3Dyke
A sheet of once-molten rock. Magma forced its way up through the older layers and cooled in place, cutting across them.
Dike in the glossaryNewest
Posts
about.geoscopy
Hello! I make Geoscopy: videos and long-form essays about how the Earth actually works. The geology I grew up reading was either locked in textbooks nobody outside the field opens, or chopped into 30-second clips that miss the point. Geoscopy is what I wanted instead: the real science, explained clearly, without oversimplifications.
There’s 4.5 billion years of history under your feet. I’d like to teach you to read it.
Shale
Fluorite
Hematite
Amphibole
Basalt
Calcite
Descloizite
Wulfenite
Galena
Chlorite
Sandstone
Diorite
September 18, 2026
September 15, 2026
September 3, 2026
Herculaneum’s Glass Brain: How Vesuvius Made Obsidian
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Pangaea Ultima: The Supercontinent That Could End Mammals
August 31, 2026
The Dolomite Problem: A Mountain Range That Shouldn’t Exist
August 30, 2026
Geology, Explained: How Earth Works, from Rocks to Deep Time
August 30, 2026
How a Collapsing Glacier Drowned the Bhote Koshi Valley
August 29, 2026
Nazaré’s Monster Waves: The Canyon Causing the Water Wall
August 23, 2026
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