The Geologic Mystery in Alaska; Savonoski Crater скачать в хорошем качестве

The Geologic Mystery in Alaska; Savonoski Crater

Within Alaska, is a geologic mystery. The more than 1,500 foot wide circular Savonoski Crater was long believed to be an impact crater. Yet, in the more than 50 years since its discovery, evidence to prove this theory has not been found. Instead, Savonoski Crater has a number of other possible origins which include a volcanic eruption, a natural gas explosion, and glacial kettles. Whatever is the true cause still remains up for debate. If you would like to support this channel, consider becoming a patron at   / geologyhub  . Another way to support this channel is to make an order via our gemstone and geology related etsy store at http://prospectingarizona.etsy.com. This channel's merch store is also on etsy at http://geologyhub.etsy.com. Thumbnail Photo Credit: ©Maxar Technologies, Google Earth ©Google & Data Providers Google Earth imagery used in this video: ©Google & Data Providers 0:00 A Geologic Mystery 1:13 Maars 2:41 Nearby Volcanic Cones 3:01 Glacial Kettles 3:42 Natural Gas Crater 4:05 Conclusion Sources: [1] Alaska Volcano Observatory, "Rainbow River Cone", "Knob 1000", "Cone 3110", "Cone 3601", "Iron Trig Cone"