marine science ch2 test idea review
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who was Alfred Wegner
a scientist who spent his rest of his life looking for evidence on what force that could drive the continents
examples of subduction zones
downward movement of a plate into the mantle ; japan and pacific trench
evidence for continental drift
the coastlines of the continents looked similar ; fossils of the same organisms in the adjoining areas
evidence for plate tectonics
sediment builds away from the ridge ; 1968 glamor challenger - rocks get older away away the ridge
lithogenous sediment
derived from weathering of rocks - finer material will be carried out to sea
biogenous sediment
skeletons and shells mostly of silica organisms
where is the sea floor made? where would a “recycling” zone be found ?
mid ocean ridge