Tag: Grand Canyon
-
Lost ‘mega-escarpment’ across ancient USA may explain Grand Canyon’s missing billion years
Phys.org has an interesting story about the Grand Canyon. The geologic record of the Grand Canyon spans about 2 billion years, but more than half of it is missing! This gap is known as the Great Unconformity. Now, a new study, published in the journal Geology, may have found evidence of what happened those missing…
-
Throwback Thursday #323: June 30, 1956 Mid-Air Collision Over the Grand Canyon
Newspapers.com recently featured an interesting article about the tragic mid-air collision over the Grand Canyon on June 30, 1956. TWA Flight 2, a Lockheed Super Constellation en route to Kansas City, collided with United Flight 718, a DC-7 bound for Chicago. Both aircraft had departed from Los Angeles, and the collision is believed to have…
-
New Grand Canyon Discovery Could Rewrite Geology Textbooks
SciTechDaily reports on a discovery that may reshape our understanding of the Cambrian Period. New research, published in the journal GSA Today, focuses on Cambrian rock formations at the base of the Grand Canyon. The study, a collaborative effort led by Carol Dehler, a professor at Utah State University, and Fred Sundberg, a paleontologist and adjunct professor at UNM, revisits…
-
Happy 100th Birthday – Grand Canyon National Park!
The Grand Canyon National Park is 100 years old today. There’s many posts out on the internet. Here are a few… NPR, CNN, Fortune, and Outside Magazine. On February 26, 2019, the Grand Canyon celebrates 100 years since it’s designation as a national park. A UNESCO World Heritage Site, Grand Canyon welcomes approximately six million…
-
Age of Colorado River
Via geology.com from Arizona Geology Magazine: Arizona’s Grand Canyon reveals an enormous sequence of rocks that represent more than a third of the 4.5-billion-year age of the Earth. The canyon itself, however, is quite young in comparison, with most or all canyon incision occurring over the past 5 million years according to most interpretations. Careful…
-
Grand Canyon to mark Archeology Day March 26-27
Via the Los Angeles Times: If you’re planning a trip to Grand Canyon National Park later this month, check out Archeology Day. Held on Saturday, March 27, this all-day educational program will focus on native peoples who inhabited the Grand Canyon in Arizona long ago and on how archeologists do their work. More than 4,000 archeological…
