Types of intrusive igneous rocks .

1. INTRUSIVE IGNEOUS
ROCKS
-Forms when megma intrudes in to bedrock
and slowly cools

2. DYKES- These cut the
bedding of rocks vertically,
hence discordant in nature
SILLS- These Spreads
parallel to the bedding
planes of the rocks ,
concordant in nature.

3. LACCOLITHS: It is a
concordant body, with flat
bottom and convex upward.
It is dome shaped
LOPOLITHS : These are
basin or saucer-shaped
concordant bodies with top
nearly flat and convex
bottom
LOPOLITHS
LACCOLITHS

4. PATHOLITHS- These are
concordant bodies that
occurs along the crests and
troughs of the folded
sedimentary strata.
BATHOLITHS: These are
the largest kind of plutons,
irregular in shape and
occupies large area.

5. NECK- It is cylindrical
conduit that fed magma
upward to a volcanic vent or it
is a conduit of the ancient
volcano.
BYSAMILITHS- these are
more or less vertical
cylindrical bodies that
crosscut (discordant) adjacent
sediments and are bounded by
steep faults.

6. THANK YOU