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Dikes are small (<20 m wide) shallow
intrusions that show a discordant relationship
to the rocks in which they intrude. Discordant
means that they cut across pre-existing
structures. They may occur as isolated
bodies or may occur as swarms of dikes
emanating from a large…

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Batholiths are very large intrusive bodies,
usually so large that there bottoms are
rarely exposed. Sometimes they are
composed of several smaller intrusions.

Type of Intrusion: Discordant (Vertical)
Intrusion - cut across the sedimentary rock
layers they intrude into.

Characteristics: large, igneous dome
shaped features (deep-seated); coarse
grained (due…


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