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PUBLIC MARKS with tag geology


Mineral Stamps

by Stephane
Online collection of stamps featuring rocks and minerals.


TalkOrigins Archive: Exploring the Creation/Evolution Controversy

by jdrsantos & 3 others is a Usenet newsgroup devoted to the discussion and debate of biological and physical origins. Most discussions in the newsgroup center on the creation/evolution controversy, but other topics of discussion include the origin of life, geology,


Windows to the Universe

by knann & 6 others
Science site with rich resources. A great feature is the beginner, intermediate, and adanced views available on every page for every topic. Good for differentiation!


Geology: Calling All Girls

by misskitty4280
The job market for people with scientific training is large these days. And it's a big opportunity for women, because the need for smart people is erasing the old barriers that once kept women out of many fields, even supposedly objective science. Once women get into Earth science, they do good science. And there are organizations helping them along.

About Radon

by misskitty4280
Earth has many ways to kill us. We keep on the lookout, and rightly so, for volcanic eruptions, earthquakes, landslides, flooding, cosmic impacts, climate change and falling rocks on the highway. Should we still worry about radon?

Hayward Fault Map

by misskitty4280
The U.S. Geological Survey unveiled a nifty new "virtual helicopter tour" of the Hayward fault, which as you know runs down the side of San Francisco Bay on its east side. (It also is where I live.) What you may not know is that hundreds of thousands of homes and people are endangered there. A magnitude-7 event there would be an instant Katrina. The USGS page also has more useful tools, like a zoomable printable annotated photomap of the whole fault. Get your hands on it—and tell everyone you know who lives in the East Bay.

Environment News Service (ENS) - Volcanic Gases, Not Meteors, May Have Caused Mass Extinctions

by misskitty4280
Earth's history has been punctuated by mass extinctions that have rapidly wiped out nearly all life forms on the planet. To determine what caused these events, British geologists are challenging the currently held theory that meteorite impacts are to blame for wiping out the dinosaurs 65 million years ago and other mass extinctions.

The Permian-Triassic Extinction

by misskitty4280
Sometimes almost everything you know is wrong. People familiar with the dinosaur-killing impact of 65 million years ago may think such things are common, even predominant in the fossil record. But in fact nearly all mass extinctions are due to other things—tectonic changes or volcanism. Even the biggest extinction of them all, the Permian extinction 250 million years ago, appears to be due to extreme volcanism. A story from the Environment News Service tells about a crucial detail of that problem: the Siberian Traps.

Geologic Map of Florida

by misskitty4280
Florida may be flat and sandy, but it's full of geologic interest just the same.

FS 2006-3031: Assessment of Undiscovered Petroleum Resources of Northern Afghanistan, 2006

by misskitty4280
A new assessment of the rocks of Afghanistan documents much larger petroleum resources than previously thought. The U.S. Geological Survey looked strictly at the geology, without doing any drilling, to estimate that the Afghan-Tajik Basin holds 18 times the amount of oil (over 1.5 billion barrels) and the Amu Darya Basin has several times as much gas (almost 16 trillion cubic feet) as older estimates. This could be a shot in the arm for that precarious country if oil companies can be tempted to drill there.

Connecticut Geology

by misskitty4280
Under the placid, wooded surface of Connecticut is an ancient Los Angeles and a more recent Manitoba. If you know where to look and what to look for, those long-gone scenes can be visible again in your local hills and landforms. Introducing the deep history of the Constitution State.

About the Earth's Core

by misskitty4280
See how we study the core and what we've learned.

True Polar Wander, an Idea of Crazy Men

by misskitty4280
In the 25 July 1997 issue of Science, a team of prestigious researchers led by Joseph Kirschvink asserted that about 550 million years ago, the whole Earth slewed halfway around, putting its polar lands down at the equator, over a rather brief period—15 million years.


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