The larger rocks are igneous (formed when molten rock or magma cools and hardens) or metamorphic rocks (formed when pre existing rocks are subjected to intense heat and pressure often associated with tectonic deformation).
(The larger rocks; are; igneous) (intense heat and pressure; associated; with tectonic deformation; T:often) (molten rock or magma cools and hardens) or metamorphic rocks; formed; T:when pre existing rocks are subjected to intense heat and pressure) (pre existing rocks; are subjected; to intense heat and pressure)
The larger rocks intense heat and pressure molten rock or magma cools and hardens) or metamorphic rocks pre existing rocks
are associated formed are subjected
igneous
with tectonic deformation T:often
T:when pre existing rocks are subjected to intense heat and pressure
to intense heat and pressure