By about one hour after IGNITION

• Head, what head? Only the core of Jackie's facial bones and the base of her skull are left.
• Jackie's organs have been reduced to ash.

About 30% of Jackie's skeleton will eventually be burnt up - the organic non-mineral part. Jackie's bones will break into fragments due to their rapid loss of water as they are heated. Most of the bone fragments that survive incineration will come from Jackie's heavier bones - her pelvis, lower vertebrae (the bony segments of her backbone), and skull (about 20% of the total). The bones in the female pelvis are are more delicate (thinner and lighter) than those in the male pelvis, so Jackie will have less pelvis to leave behind.