Thursday, October 18, 2012

Post #2

Research Methods

Searching my topic was not as difficult as I had originally thought it would be. I originally searched academic premier through USM's library resource guide. I made sure to only search articles that were full text and peer reviewed. Most articles that my search pulled up were articles based on sites that used radiocarbon dating as their dating tool. I then turned my searching the world wide web, where I actually found a few credible/useful sources. I really enjoyed my topic, although a majority of the information I already knew from learning in previous classes. 

Post #1

Radiocarbon Dating

Radiocarbon dating is a method used by archaeologists and anthropologists to place artifacts or bones into a chronological order. It was created in 1949 by Libby and Arnold. Every living thing contains carbon 12. Carbon 12 can mutate into it's cousin carbon 14 which is radio active. When that living thing dies, the carbon 14 slowly begins to decompose and disappear. The decomposition occurs at a measurable rate. This rate is called the half-life, because the carbon 14 decomposes half of it's life every 5,730 years. There are some disadvantages to radiocarbon dating such as the large range of dating once there is only a certain amount of carbon 14 left in the dead organism. The procedure can be very expensive and can even damage the artifact.