Copper isotopes behave differently in near-surface environments than in non-weathering environments found deeper in the earth. By sampling copper isotopes (63 and 65) in metal artifacts from Copper and Bronze Age Serbia, Dr. Mathur and his colleagues discovered the approximate time that people of this region were introduced to shaft mining, a technique already in practice in the middle east. Soon to be published in the Journal of Archaeological Science.
Kelly holds an MS in plant biology from University of Vermont and a master's certificate in science illustration from University of California Extension Santa Cruz. She is an avid birder and in addition to ornithology, her favorite subjects are ecology and geology. She is a joy to work with and never misses a deadline.
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