A dike
it is a sill
a still is formed
Sill (D)
It forms a sill.
A body of magma that cuts through (and across) adjacent rock. Similar to a secondary vent but it does not strike through the surface. It then hardens and forms rock. It is always younger than the rocks which surround it.
Lava that cuts across rock layers hardens to form a feature called a Dike.
Lava that cuts across rock layers hardens to form a disk.
it is a sill
That would be a type of igneous intrusion known as a dike.
a still is formed
A crosscutting feature is always younger than the rock layers it cuts through because the feature always forms after the rock layers have been formed, making the rock layers older.
Sill (D)
A crosscutting feature is always younger than the rock layers it cuts through because the feature always forms after the rock layers have been formed, making the rock layers older.
Sill (D)
feature a and b
It forms a sill.
A body of magma that cuts through (and across) adjacent rock. Similar to a secondary vent but it does not strike through the surface. It then hardens and forms rock. It is always younger than the rocks which surround it.