by Timothy Oleson Wednesday, December 12, 2012
**UPDATE** Answers listed below. Scroll down carefully if you'd still like to test yourself.
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Think you have your geo-vocabulary down, or want to test your geo-jargon chops? Be our guest!
Rearrange the twelve 12-letter words below using their 12-word definitions as clues. Some are a little easier, some are a little harder. All are geo-fantabulous!
Containing lots of diatoms, single-celled algae that secrete intricate shells of silica.
A siliciclastic sedimentary rock containing pebbles larger than 2 millimeters in diameter.
The ozone-rich layer between about 10 and 50 kilometers above Earth’s surface.
A squat, heavily armored Late Cretaceous dinosaur that lived in North America.
Being built or increasing in size by the accumulation of external material.
A laminated, dome-shaped biogenic structure formed by cyanobacteria in shallow tidal zones.
The geologic age that lasted from 156 million to 151 million years ago.
Metamorphism that alters a rock’s chemical composition, often due to fluid infiltration.
A surface between rock layers that were not deposited in chronological succession.
Paleozoic supercontinent that included Africa, Antarctica, Australia, South America, India and Arabia
Rock composed of minerals — like chrysotile — formed by hydration of ferromagnesian precursors.
Having to do with fluid flow caused by temperature or salinity gradients.
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