Meteorite Impact Craters - Geophysical Institute
Recently formed craters are easier to identify. Arizona's famous Meteor Crater (officially known as Barringer Crater) near Flagstaff was formed only about 25,000 years ago. Between 5 and 20 …
Alaskan Meteorite Crater Discovery - Geophysical Institute
The meteorite crater is about 500 meters deep. Its center is occupied by Sithylemenkat Lake; sithylemenkat has the meaning "lake in the hills" in the Koyukon Indian language of the area. …
Alaskan Meteorites - Geophysical Institute
2025年1月9日 · The other two are the Savonoski Crater, roughly 500 meters across, in Katmai, and a small one only 63 meters across on Amak Island north of the Alaska Peninsula. Dr. …
Largest Known Meteor Craters - DetectorProspector.com
2022年4月9日 · Full Member; 5.5k Location: Santa Monica Interests: detecting, 3 cushion billiards, fishing Gear In Use: GPZ 7000 14/19/Xcoils (15x10 Spiral and 15 CC), SDC 2300, …
Alaska's Deep Impact on the North Slope | Geophysical Institute
2005年10月6日 · Both recently had attended a field trip to Indiana to see an impact crater, the massive divot left behind after a meteorite hit the ground. Looking at the pulverized rocks from …
Massive impact crater discovered in Greenland
2018年11月14日 · This is the first time that a crater of any size has been found under one of Earth’s continental ice sheets. The impact crater is among the 25 largest yet found on Earth. …
Cold Meteorites - Geophysical Institute
2025年1月9日 · Roughly half of the meteor will be burned away due to heating as the meteor is slowed down by the air. Depending upon the meteor's initial speed and initial weight, it will …
Tasmanian Meteor - Metal Detecting For Meteorites
2020年11月20日 · The meteor lit up the night sky on Wednesday (Nov. 18) at 9:21 p.m. local Tasmanian time (5:21 a.m. EST and 1021 GMT). A livestream camera on the research vessel …
UAF aims to make Alaska a critical minerals hub
2024年11月1日 · Samples from Russia’s Lake El’gygytgyn, an impact crater formed about 3 million years ago, are being re-examined at the UAF Geophysical Institute’s Geochronology …
John B. Pointy Finger Meteorites - DetectorProspector.com
2024年3月29日 · As this meteor was coming in it gained a fushion crust from the heat. It broke up into many pieces and you can see cracks in this one. It was down in the redish soil about 4 …