A layer of magma that pushes between layers of rock and then hardens is called?

A. a dike.


B. a sill.


C. a batholith.


D. a stock.|||b a sill|||Hardened Magma|||C... also known as intrusive or plutonic|||A|||The molten, pressurized magma intrudes into the solid volcanic rock to create dikes and sills. Dikes cut across volcanic rock layers, and sills run parallel to the layers. Eventually the magma hardens inside Earth and becomes an intrusive igneous rock.|||It is a sill. As pointed out dikes cut through layers and sill's are parallel.|||B. A sill.





The way to remember the difference between a dike and a sill (because both are from magma squeezing into cracks and then hardening) is that if you take away the rock around it, a sill is horizontal, like a window sill whereas a dike is a vertical wall the way a dike is for holding back water.