EPOD - a service of USRA
The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.
Mt. Baker at Sunrise
December 01, 2022
220830-3
Photographer: Marli Miller
Summary Author: Marli Miller
Reaching an elevation of 10,781 feet (3,286 m), Mt. Baker dominates
the landscape of northern Washington. This view, towards the WSW from
near Lake Ann, shows two of the more than 15 named glaciers that
descend in a radial pattern around the volcano: the Park Glacier on
the right; and Boulder Glacier on the left.
Mt. Baker, a stratovolcano, erupted andesite and dacite
lavas from as far back as 140,000 years ago, but its most active period
occurred between 25,000-12,000 years ago. It was during this time that
it built its base and summit cone. Since then, it’s only erupted ash,
although a collapse of one of its flanks occurred some 6700 years ago.
Multiple small events took place during the 1800s and an increase in
gas emissions in 1975 suggested the presence of new magma in the
volcano. These emissions have tapered off through time.
The USGS maintains an active monitoring program at Mt. Baker.
Because of the extensive glaciers, even small eruptions can trigger
devastating lahars (volcanic mudflows), which can flow great
distances away from the volcano. Photo taken on August 22, 2022.
Mt. Baker, Washington Coordinates: 48.832, -121.643
Related EPODs
Mt. Baker at Sunrise Fossil Find in Sicily, Italy Arizona’s
China Wall Fossil Lake’s Legacy at Wyoming’s Fossil Butte Wagon
Tracks from the Old West? First Light on the Circle Cliffs
Anticline
More...
Geology Links
* Earthquakes
* Geologic Time
* Geomagnetism
* General Dictionary of Geology
* Mineral and Locality Database
* Mohs Scale of Mineral Hardness
* This Dynamic Earth
* USGS
* MyShake - University of California, Berkeley
* USGS Ask a Geologist
* USGS/NPS Geologic Glossary
* USGS Volcano Hazards Program
-
Earth Science Picture of the Day is a service of the Universities
Space Research Association.
https://epod.usra.edu
--- up 39 weeks, 3 days, 21 minutes
* Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)