~ The Pinnacles ~ Weekly Photo Challenge – Time 2 ~

The pinnacles at Crater Lake National Park were formed 7,700 years ago when Mount Mazama (on the crest of the Cascade Range in southern Oregon) erupted violently emitting layer upon layer of volcanic pumice. As the surface cooled, steam and gases from hot rocks underneath were released through vents and tubes which became cement hard over time. Erosion of softer materials around the vents has exposed the needle-like formations called fossil fumaroles.

www.craterlakeinstitute.com

<a href=”https://dailypost.wordpress.com/photo-challenges/time/”>Time</a>

 

This entry was posted in geology, nature, outdoors, pacific northwest, weekly photo challenge and tagged , , , , , . Bookmark the permalink.

3 Responses to ~ The Pinnacles ~ Weekly Photo Challenge – Time 2 ~

  1. Pingback: Time (Empty) | Chris Breebaart Photography / What's (in) the picture?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s