Where on Earth? - February 2015

Clues for February 2015:

1. These rock spires are fossil fumaroles. They formed when hot steam and gas rose through thick layers of preexisting volcanic deposits, welding otherwise weak pumice, ash and scoria into durable features that resisted erosion better than the surrounding rock. Their name alludes to their lofty, pointed peaks.

2. The spires are located about 9 kilometers southeast of a lake known for its tremendous depth — with a maximum depth of 592 meters, it’s one of the world’s 10 deepest — as well as for the “magical” island that emerges from its brilliant blue waters.

3. The layers from which the spires were carved were deposited prior to the massive volcanic eruption 7,700 years ago that led to the formation of the lake, which, despite its name, was not created by an extraterrestrial impactor.

 

Name the spires and where they are located .

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Answer: These rock spires, known as the Pinnacles, are located about 9 kilometers southeast of Oregon’s Crater Lake in Sand Creek Canyon. They are fossil fumaroles that formed when hot steam and gas rose through thick layers of pumice, ash and scoria, welding the otherwise weak sediments into durable columns. Photo is by Jordan Makower.

February Winners:
Bob Herndon (Ooltewah, Tenn.)
James Merlo (Rocky Point, N.Y.)
Ted Reeves (Ontario, Calif.)
Barbara Smith (Topeka, Kan.)
Joe St. Martin (Mystic, Conn.)

 

To submit your photographs to our Where on Earth? contest, send them via e-mail to
earth@earthmagazine.org.

 

 

01 Feb 2015