'Volcanic ash layers' presentation slideshows

Evolution and Creationism: What Everyone Needs to Know

952 views • 41 slides

The largest airspace shutdown since WWII: Volcanic ash prediction and its challenges

The largest airspace shutdown since WWII: Volcanic ash prediction and its challenges. Eyjafjallajokull eruption, 2010. Helen Dacre 1 , Alan Grant 1 , Natalie Harvey 1 , Helen Webster 2 , Ben Johnson 2 , David Thomson 2 , Franco Marenco 2 1 University of Reading 2 UK Met Office .

323 views • 19 slides

Aim : How can rocks & geologic events in one place be matched with those in other locations?

369 views • 15 slides

The Archean Eon 3.8 BYA to 2.5 BYA Oceans and Life

312 views • 13 slides

How do scientists construct the geologic history of an area?

309 views • 11 slides