ANTHROP 2FF3 Lecture Notes - Lecture 8: Prefrontal Cortex, Fluorine, Racemization
20 Jul 2016
School
Department
Course
Professor
Document Summary
The nature and composition of the sediments: temporal. Variation in preservation conditions through time: biological. The changes in any of these can alter the remains and change results. The tropical plants rarely preserve because moss and decaying. Mayans are an example of lact of preserved people because the type of environments they were preserved in didn"t allow for preservation. Teeth and bones tend to be preserved where the soft tissue rarely does: volcanic deposits and deep piles of volcanic ash, lake and river sediments. Protected from scavengers at the very least and protect from bacteria: caves. The organic material and inorganic gets replaced by soil minerals. In rare cases crystal formations are preserved: cast & mold. Organism may become sealed in solidified settlements. Trapped in deposits and pressure seals them up and organism. Cast an impression of where animal was. The mold- is the empty space: impression. Without any organic material remaining just about a stain basically.
