Biological and Physical Anthropology Commons^™

Evaluating Cremation In Umm An-Nar Period Mortuary Practices Using Laser-Induced Breakdown Spectroscopy (Libs), Malena Butler

Anthropology Undergraduate Senior Theses

Chemical changes in bone composition that occur during the process of cremation have begun to be explored alongside corresponding macroscopic changes to bone color using a variety of analytical instrumentation. This research employed a lesser-utilized method, Laser-Induced Breakdown Spectroscopy (LIBS), alongside Munsell Color Charts to assess elemental changes that may occur in archaeological bone at varying cremation temperatures. It was hypothesized that differences in color would be indicative of different chemical compositions present in bone, despite previous evidence for at least some diagenetic change. Distal humeri from Umm an-Nar (2700-2000 BCE) period tombs Unar 1 (n=31) and Unar 2 (n=28) …