Meteor Crater | search
Click here to view Meteor Crater news from 60+ newspapers.
Bookmark or Share- Alaskan Meteorite Crater Discovery - Geophysical InstituteThe 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. The crater is thought to have been formed during the latter part of the last ice age, about 100,000 years ago.
- The mystery of mammoth tusks with iron filingsA meteorite that big would have torched anything within a 100-mile radius and could have buried the mammoths farther away from the crater, preserving the tusks struck by metal fragments. Firestone said the dust kicked up by the meteor would have eliminated any mammoths that survived the meteor’s hit.
- Alaskan Meteorites - Geophysical InstituteThe 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. Juergen Kienle of the Geophysical Institute notes that the Amak crater might be a maar rather than a meteorite crater.
- Meteorite Impact Craters - Geophysical InstituteRecently 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 megatons of energy were released when an iron asteroid about 50 yards in diameter, traveling at more than 8 miles per second, struck the earth.
- Alaska's Deep Impact on the North Slope | Geophysical InstituteBoth 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 the petroleum reserve, they thought the Navy diggers may have tapped into an impact crater on the North Slope.
More
