Precambrian

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Helium Ballooning out of Yellowstone! Helium may be the second most abundant element in the universe

Dales Gorge FormationThese redbeds are found in Western Australia near the northwestern corner of th

Harpers Ferry and the 1859 raidOn this date, October 16th, 1859, the city and river crossing feature

KinneyiaThis is a particularly neat and common variety of trace fossil, thought to be a common remna

The Mystery of the Midcontinental Rift1.1 billion years ago, a rift opened under what is now Lake Su

The oldest large scale complex fossils?These unremarkable looking patterns preserved as thin films o

The shell was a groundbreaking biological invention, acting both as a support and as protection from

Ediacaran fossilsThe biggest division in the geologic record of Earth is between the Precambrian and

Did land life emerge earlier than thought?Science thrives on passionate debates, and the Earth scien

Narcea geological formation, Cangas del Narcea, Asturias (Spain)

Sea of clouds beneath HuangShanMount Huang or Huangshan is an 1800 meter peak found in China’s Anhui

powerfrog:Share if you long for the good old days…

Geologic ClockIt really is hard to fathom the scale of geologic time. The recent TV series “Cosmos”

EARLY EARTH MAY HAVE BEEN KEPT WARM BY HYDROGEN-NITROGEN COLLISIONSMany theories have been explored

SongshanThese incredible rocks make up what is known as Shuce Cliff, one small part of the Songshan

How do we see if the pieces fit?This is a core of sediment taken from the northeastern portion of Au

taraelizabethsobsessions:I got to see this gorgeous banded iron formation again

maianicole:©Maia Howell - [Flickr][Tumblr][Instagram][Facebook][Redbubble]Do not remove credit (this

First manganese, then the world!The rocks you see here being sampled by Caltech grad student Jena Jo

Mount WoodringResembling a human profile staring enigmatically up into the sky, this peak in the Gra

Hallelujah, it’s rainin’ chert!This layer is one of the most common rock types found in

Folded and warpedThese sedimentary rocks in the southern Australian outback date from the latest Pre

Deformed DikesI have a long-running hypothesis that I’ve spoken of here before, and that is th

Watson LakeThis is a sunset in part of the Colorado Plateau known as the Granite Dells. Watson Lake

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