Erosional Features of Volcanoes

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Images of Eroding Volcanic Features

Shiprock, New Mexico is one of the most familiar examples of a volcanic neck in the world. It is the core, or throat, of an extinct deeply eroded volcano. The Navajo name is Tsé Bitʼaʼí, "rock with wings" or "winged rock. The volcano erupted about 27 million years ago, and stands some 1,500 feet above the adjacent plains. A series of exposed dikes extend outwards from the edifice.


Agathla Peak, (skyline) and other volcanic necks near Kayenta, Arizona	Zoom on Agathla Peak in northern Arizona. It is a volcanic neck	Volcanic neck near Kayenta, Arizona	Volcanic necks near Kayenta, Arizona	Agathla Peak, (skyline) and other volcanic necks near Kayenta, Arizona	Volcanic neck near Kayenta, Arizona

Shiprock, a volcanic neck in NW New Mexico.	Shiprock in New Mexico, a volcanic neck.	Shiprock, in New Mexico, with the dike on the left side	Shiprock in New Mexico, with dike system to the left.	A volcanic neck in the Shiprock Volcanic Field, New Mexico.	Church Rock in eastern Arizona near Shiprock.

Church Rock in Arizona, with Agathla Peak in the far distance	Church Rock in Arizona, a volcanic neck in the Shiprock Volcanic Field	Agathla Peak, a volcanic neck on the Navajo Reservation near the north Arizona border.	Agathla Peak rises almost 1,500 feet above the surrounding plains. It is about 27 million years old	Zoom on Agathla Peak in northern Arizona. It is a volcanic neck	Agathla Peak, a volcanic neck in northern Arizona

A volcanic neck in the Shiprock Volcanic Field, New Mexico.	A volcanic neck in the Shiprock Volcanic Field, New Mexico.	Jackson Butte, a Tertiary volcanic neck in the California Mother Lode near Jackson	Jackson Butte, a Tertiary volcanic neck in the California Mother Lode near Jackson	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode

Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode	Stanislaus Table Mountain, a classic inverted stream near Jamestown in the California Mother Lode

The Pinnacles composite cone, a deeply eroded volcano at Pinnacles National Monument	Distant view of the High Peaks of Pinnacles National Monument, a deeply eroded composite cone.	Distant view of the High Peaks of Pinnacles National Monument, a deeply eroded composite cone. Eroded rhyolite in foreground	Distant view of the High Peaks of Pinnacles National Monument, a deeply eroded composite cone. Eroded rhyolite in foreground	At Pinnacles National Monument, Bear Creek cuts through the heart of a deeply eroded composite cone	High Peaks section of Pinnacles National Monument, a deeply eroded composite volcano

Eroded rhyolite breccia at Pinnacles National Monument. The tilt is original slope of the deposit	View from the High Peaks Trail at Pinnacles National Monument. Eroded rhyolite breccias	View from the High Peaks Trail at Pinnacles National Monument. Eroded rhyolite breccias	High Peaks from the Condor Gulch Trail at Pinnacles National Monument, a deeply eroded composite cone	Rock spire on Condor Gulch Trail at Pinnacles National Monument	Eroded rhyolite breccia at Pinnacles National Monument.

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