SOE 101 LAB FINAL QUESTIONS VERIFIED ANSWERS
divergent plate boundaries - Answers - tectonic plates spreading apart, new mafic crust
being formed (ex. mid-ocean ridges, rift valleys, shallow earthquakes).
where to find peridotite - Answers - litospheric mantle
where to find gabbro - Answers - magma
where to find basalt - Answers - mafic crust
What happens at convergent plate boundaries? - Answers - Oceanic plates meet
continental plates.
What occurs to old oceanic crust at convergent plate boundaries? - Answers - The old
oceanic crust is pulled downward beneath the continental lithosphere.
What happens to heavier oceanic plates at convergent plate boundaries? - Answers -
Heavier oceanic plates slide underneath the continental plates.
what type of magmas can erupt from volcanoes - Answers - felsic and intermediate
what type of rocks are created from magmas erupting - Answers - igneous rocks
(rhyolite, andesite, pumice, obsidian)
what magma is created when magma chambers melt continental crust - Answers - felsic
magma (diorite, granite)
what happens when magma rises and melts and mixes with felsic rocks - Answers -
create intermediate magma and rocks
what does partially melting the mantle create - Answers - slightly more silica rich
**mafic** magma
felsic - Answers - low melting temperature, granitic
intermediate - Answers - between felsic and mafic (andesite, diorite, grey)
mafic - Answers - high melting temperature, basaltic
what is the flow of oceanic crust - Answers - mafic
what is the flow of the lithosphere - Answers - mafic
divergent plate boundaries - Answers - tectonic plates spreading apart, new mafic crust
being formed (ex. mid-ocean ridges, rift valleys, shallow earthquakes).
where to find peridotite - Answers - litospheric mantle
where to find gabbro - Answers - magma
where to find basalt - Answers - mafic crust
What happens at convergent plate boundaries? - Answers - Oceanic plates meet
continental plates.
What occurs to old oceanic crust at convergent plate boundaries? - Answers - The old
oceanic crust is pulled downward beneath the continental lithosphere.
What happens to heavier oceanic plates at convergent plate boundaries? - Answers -
Heavier oceanic plates slide underneath the continental plates.
what type of magmas can erupt from volcanoes - Answers - felsic and intermediate
what type of rocks are created from magmas erupting - Answers - igneous rocks
(rhyolite, andesite, pumice, obsidian)
what magma is created when magma chambers melt continental crust - Answers - felsic
magma (diorite, granite)
what happens when magma rises and melts and mixes with felsic rocks - Answers -
create intermediate magma and rocks
what does partially melting the mantle create - Answers - slightly more silica rich
**mafic** magma
felsic - Answers - low melting temperature, granitic
intermediate - Answers - between felsic and mafic (andesite, diorite, grey)
mafic - Answers - high melting temperature, basaltic
what is the flow of oceanic crust - Answers - mafic
what is the flow of the lithosphere - Answers - mafic
