arizona – Irreverent Outcrop https://irreverentoutcrop.com Travel stories with mild geo-flavor Sun, 05 Jan 2025 05:44:56 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 https://irreverentoutcrop.com/wp-content/uploads/2024/06/cropped-logo-temp-01-1-2-32x32.png arizona – Irreverent Outcrop https://irreverentoutcrop.com 32 32 Time-traveling through 1.7 billion years of geology at the Grand Canyon https://irreverentoutcrop.com/geology-at-the-grand-canyon-en/ https://irreverentoutcrop.com/geology-at-the-grand-canyon-en/#respond Mon, 30 Dec 2024 11:59:11 +0000 https://irreverentoutcrop.com/?p=1020 Read more]]> We visited the Grand Canyon in Arizona this spring and hiked all the way to the bottom! Starting with the Kaibab Formation at the top, which formed around 270 million years ago during the Permian period, and moving down to the Vishnu Schist at the canyon floor, which formed 1.7 billion years ago during the Proterozoic Eon, we explored the entire geological timeline in reverse.

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]]> https://irreverentoutcrop.com/geology-at-the-grand-canyon-en/feed/ 0 Barringer Crater and Canyon Diablo Meteorite https://irreverentoutcrop.com/barringer-crater-and-canyon-diablo-meteorite/ https://irreverentoutcrop.com/barringer-crater-and-canyon-diablo-meteorite/#respond Sun, 25 Aug 2024 00:41:50 +0000 https://irreverentoutcrop.com/?p=844 Read more]]> When we were going back to Phoenix from the Grand Canyon, we turned east in Flagstaff and took a 45 minutes detour to visit the Barringer Meteor Crater (a.k.a. Meteor Crater Natural Landmark). This is the most well-preserved meteor crater in the world and the first confirmed impact crater on Earth caused by an extraterrestrial collision. The meteorite that created this crater 50,000…

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