Complex sentence: The site was first explored by the English geologist, Sir Henry George Lyons in 1892, and was excavated by the French Egyptologist, Jean Vercoutter, from 1962 to 1969.
Split into simpler sentences: The site was first explored by the English geologist, Sir Henry George Lyons in 1892. It was excavated by the French Egyptologist, Jean Vercoutter from 1962 to 1969.