The Geologic Column

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Ryukyu Islands
Unexpected (?) granite
 • 
Richard I Gibson
Año Nuevo Point
Elephant seals and faulted rocks
 • 
Richard I Gibson
1
Ivigtut
World’s largest cryolite deposit
 • 
Richard I Gibson
A Conulariid
Definitely a weirdo
 • 
Richard I Gibson
2
Navajo Lake
Naturally dammed
 • 
Richard I Gibson
5
Hematite after(?) magnetite
Locality unknown
 • 
Richard I Gibson
8
Gulf of Thailand
A consequence of the Indian Collision
 • 
Richard I Gibson
Spaghetti Rock
It’s not al dente
 • 
Richard I Gibson
Parisite
Not a parasite
 • 
Richard I Gibson
5
The Geologic Column
The Geologic Column
Geology newsletter by Richard I. Gibson. Anything about geology, with a focus on minerals and tectonics.
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