New Information for PY106. Class meets daily in SCI 111 from 9:00 to 10:30 a.m. NEW! Problems 38 and 64 of the chapter 24 assignment (which is due Wednesday, August 2) will be due at the start of class on Thursday, August 3. The rest of this assignment is still due at the usual time (at the start of discussion section on Wednesday, August 2). Concerning labs: The first lab will take place on Thursday, July 6, from 10:30 to 1:00 in the basement of SCI. Both lab sections, A and B, will meet at this time.
Oceanic crust is the uppermost layer of an oceanic tectonic plate. The crust overlies the solidified and uppermost layer of the mantle. The crust and the solid mantle layer together comprise an oceanic plate.The plates of the Earth together are referred to as the lithosphere.Oceanic crust is the result of erupted mantle material originating from below the plate, cooled and in most instances, modified chemically by seawater.This occurs mostly at mid-ocean ridges, but also at scattered hotspots, and also in rare but powerful occurences known as flood basalt eruptions.he crust overlies the solidified and uppermost layer of the mantle. The crust and the solid mantle layer together comprise an oceanic plate. The plates of the Earth together are referred to as the lithosphere.
The oceanic crust is part of the crust that is made fully out of basaltic rock and is several times thinner than the continental crust which is made out of granitic rock.Ocea â¦ nic crust underlies Earth's oceans and is produced at divergent plate boundaries which are commonly referred to as mid-ocean ridges.he oceanic crust is part of the crust that is made fully out of basaltic rock and is several times thinner than the continental crust which is made out of granitic rock.