Earth In Perspective - Lesson 13 - Part 2 of 6

Planet of Man -- Cosmic Connection 13-Part2
•Harvey H, Nininger pioneer in the study of meteorites continued
•1894 Aniket meteor 34 tons
•Willamette meteor 14 ton
•1947 -- meteorite fragments found in the ground
•Impact craters
•Dave Rodey. of. the. US. Geological Survey in Flagstaff, Arizona, & William McCauley Astrogeologist
•Shattercones
•Canadian Shield a chronicle of ancient meteor impacts
•Manicouagan Impact Structure
One of the largest preserved impact craters on Earth, located in Quebec, Canada, at 51° 23' N, 68° 42' W; it was formed about 212 million years ago. An ice-covered annular lake, 70 km across, now lies within a ring of rock showing clear signs of having been melted and altered by a violent collision. The original rim of the crater, though now eroded away, is thought to have had a diameter of about 100 km.
It is about 462 miles (745 km) northeast of Montreal.
It is about 130 miles (208 km) northwest of Sept Illes and Seven Islands Bay.
•Brent Crater in Algonquin Park 400 million years ago
•Arizona Crater

Category:

Science & Technology

Tags:

• meteor
• impact
• astronomy
• mars
• geology
• Manicouagan
• Brent
• crater

[Ypipable]

This gentleman is a wise historian.

[geoshelewis]

read lucifers hammer larry niven

[mRRRc]

What an irritating sound!