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Image of the Week: November 21 - 27, 2004

Lassen Peak dacite dome.

Surface of Lassen Peak dacite dome

Lassen Peak, a very large dacite dome, is near the southern end of
the Cascade Range in northern California.

Domes form as gas-poor silica-rich lava is extruded
The rocks formed from these lavas are usually dacite or rhyolite.

A dacite dome is forming now in the crater of Mount St. Helens.
(See CVO images for November, 2004.)

I especially recommend the following images.
Image of the Week Archive
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Links

Go to LCC Lassen Peak Images Index Page
Go to Telephoto view of Lassen Peak's Dome
Go to Close view of Lassen Peak Dome
Go to CVO Website - Lassen Volcanic National Park
Go to Mount St. Helens - PNSN Press Release - Current Information
Go to CVO - Mount St. Helens, WA, 2004 Crater, Dome, and Eruption Images
Go to Mount St. Helens VolcanoCam - Mount St. Helens National Volcanic Monument

Go to LCC Earth Science WEB LINKS Page

CLICK on the colored links above to go to those Web Pages.
LCC Image of the Week 12-07-04
David Cordero
dcordero@lcc.ctc.edu