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| Shiprock, located in northwestern New Mexico, is a most impressive example of a volcanic neck, or a central feeder pipe. The remnant of an eruption around 30 million years ago during the Oligocene, it is an 1800 foot basalt core of an extinct volcano. |
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| Total images: 24 | Last update: 5/6/10 7:01 AM | Made with JAlbum & Chameleon | Help |