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7 Cards in this Set

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what are the landfroms associated with igneous rock formation?
1.batholith-intrusive
2.dikes-intrusive
3.sills-intrusive
4.laccolith-intrusive
5.flows-extrusive
6.volcanoes-extrusive
what are the four composition of igneous rocks?
1.ultramafic
2.mafic
3.intermediate
4.felsic
what is the ultramafic igneous rock?
its very low in silica(SiO2)
very high in MgO and FeO
what is the mafic igneous rock?
low in silica
high in MgO and FeO
what is the intermediate igneous rock?
high in silica
low in MgO and FeO
what is the felsic igneous rock?
very high in silica
very low in MgO and FeO
WHAT IS TEXTURE?
IT REFERS TO THE SIZE ,SHAPE ,AND ARRANGEMENT OF CRYSTALS.