fragmentary

adj

1. Consisting of fragments; disconnected; scattered.

   “Fragmentary evidence suggests that he died in a foreign country.”

   “Of this empire less is known than of other domains. From time to time, fragmentary knowledge has been carried thence by some observant traveler.”

   “Because the effects of which could not be contested. Because this little group of scientists, drunk with their fragmentary knowledge proudly deemed that they could forego everything that was not rational, they decreed that all humanity should also go without. They never dreamed that the science in which they had put their faith would soon be completely upset.”

   “Speaking of his work on the cephalopods as a whole, Thompson says: “ This is far more than a mass of fragmentary observations gleaned from fishermen. It is a plain orderly treatise on the ways and habits, the varieties, and the anatomical structure of an entire group.””

2. Composed of the fragments of other rocks.