Inside USGS No. 1, Robert Christiansen, Yellowstone
Автор: USGS
Загружено: 2014-09-26
Просмотров: 15897
Описание:
http://gallery.usgs.gov/videos/845
USGS emeritus geologist Robert Christiansen describes his career working on Yellowstone geology from the 1960's through 2014. Bob's work along with his USGS colleagues revealed the details of Yellowstone's explosive volcanic past including mapping and dating of past super eruptions 2.1 million years ago, 1.3 million years ago and 640,000 years ago.
Повторяем попытку...
Доступные форматы для скачивания:
Скачать видео
-
Информация по загрузке: