It contained tools and chemicals that could have been used to modify the ape jaw and human skull to give them the appearance of great antiquity.The owner of this kit was Martin Hinton, curator of zoology at the time of the hoax.
Fluorine analysis is primarily used for verifying whether or not two fossils in the same strata at a site were in fact contemporaneous.
The skull and jaw clearly were not from the same time period.
The jaw was likely to have come from a modern young adult orangutan.
However, relative methods are , which is that if there are layers of deposits, those laid down first will be on the bottom and those laid down last will be on the top. However, geological strata are not always found to be in a neat chronological order.
Wind and water erode strata and some areas are uplifted or even tilted.