Base rock meaning what? Some consider base rock to be dry pieces with no color or life on them. I think this is incorrect also.
Base rock is rock that has very little character. Round, boulder-type pieces that you would use as the "base" of your pile and cover with the nicer stuff. If you are referring to that, I would have to ask what condition is this rock in.
Is it from an established system? If so, then no, you aren't going o get a cycle if the transport doesn't have it out of the water for very long.
Is it uncured/un-cycled? then yes, you should have a substantial spike with 100 pounds of uncured rock.
In that case, I would cycle it in a separate container. A plastic tub with a heater and power head for a few weeks/month will be fine.