He was best known for his studies on the magnetic properties of ocean crust and their effect on plate tectonics.
12.
The chain has been produced by the movement of the ocean crust over the atoll island and then an atoll.
13.
The granitic intrusions within the high-grade metasediments were produced by subduction of the ocean crust and partial melting of metasedimentary rocks.
14.
Continental crust is enriched in incompatible elements compared to the basaltic ocean crust and much enriched compared to the underlying mantle.
15.
The Balmoral Reef Plate's ocean crust is less than 12 million years old and is spreading between the New Hebrides and Tonga subduction.
16.
"If it was an ocean impact, it wouldn't make much shocked quartz, because there's very little quartz in ocean crust, " he says.
17.
The cooling and sinking ocean crust causes a tensile stress that also helps drive the pulling apart of the plates at the ridge axis.
18.
These volcanic rifts gird the globe like seams on a baseball, making ocean crust and, over the eons, moving the continents around like putty.
19.
Between the two, the Borrowdale Volcanic Group consists of tuffs erupted by an underlying calc-alkaline volcanic arc, active during the subduction of the Iapetus ocean crust.
20.
The deep sea deposits of the Skiddaw Group were raised above sea level by the subduction of ocean crust from the north beneath the continent to the south.
