"Grandmother cells" are mostly closely associated with specificity coding. Specifity coding is the representation of particular objects in a particular environment by the firing of neuron that are tuned to respond specifically to that object. Single cells fires only in response to the presence of a particular face say a grand mother but no response to any other face.
Melting and crystallization
Intrusive slow igneous fast
Limestone mudstone
It weathers
They need to be buried and cemented
Yes over time and through the cycle
Lava extreme heating
Granite
Basalt
Marble slate
