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October 2024

Craters of the Moon
A lesser known, yet completely unique National Monument in southern Idaho’s Great Rift volcanic zone.
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Jacob Clarke
2
Fold Friday: Iranian Folds
A series of satellite photos showing regional folding in Iran.
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Jacob Clarke
Alaska Seafloor Topography
Faults offshore of the Alaska subduction zone, and why they are there.
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Jacob Clarke
Fold Friday: Gobi Altai, Mongolia
A brief summary of the Mongolian Altaids.
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Jacob Clarke
Sound of the Aurora
Atmospheric sound waves excited by the dazzling aurora, along with other science surrounding this phenomenon.
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Jacob Clarke
7
Fold Friday: Norway Amphibolite
Plastic deformation within metamorphic rocks in the Trondheim region of south-central Norway related to the Caledonian Orogeny between 490-390 million…
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Jacob Clarke
Sunset Crater, Arizona, USA
The most recently active of nearly 600 volcanoes in northern Arizona's San Francisco Volcanic Field.
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Jacob Clarke
12
Fold Friday: Michipicoten Banded Iron, Ontario, Canada
Folded banded iron formations within volcanic and sedimentary deposits in rocks several billions of years old.
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Jacob Clarke
Garden of the Gods
A nearly continuous record of history through 500 million years of Earth’s past, and a haven for geologists and tourists alike.
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Jacob Clarke
9

September 2024

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