Final answer:
In Aurignacian technology, blade tools were used to make composite tools, which marked a technical innovation in the Upper Paleolithic period.
Step-by-step explanation:
In Aurignacian technology, blade tools made from various materials such as antler, ivory, and bone were used to make composite tools. This technological advancement was part of a broader shift in the Upper Paleolithic period towards producing more efficient and specialized tools. The blade tools provided a longer cutting edge and were used to manufacture a variety of tools and artistic objects.