Choose the best methods for finding the absolute dates of different rock layers. (petesgrillandpizza.com)
Along the way, you'll see a few different rocks for jumping into the clear blue ocean. (mindbodygreen.com)
To understand how water affects subduction of the oceanic plate, in which layers of different rock types sink into the mantle, the UO team studied hydrogen isotopes in water contained in tiny blobs of glass trapped in olivine crystals in basalt. (sciencedaily.com)