MSU-led team studies mussels to unlock Delta archaeology secrets
Contact: Sarah Nicholas
STARKVILLE, Miss.鈥擜n innovative research process developed at Mississippi State will be used to explore prehistoric trade in the Mississippi Delta and provide data that may help conservation biologists in their quest to conserve endangered organisms.
A new National Science Foundation grant of more than $60,000 is supporting the first area-wide study of how freshwater mussel shells and pottery may have been used as ancient trade items throughout the western side of what is now the Magnolia State.
鈥淭here is a characteristic of freshwater mussels that allows archaeologists to investigate ancient trade between different groups of people in the past,鈥 said Evan Peacock, lead investigator and interim director of the university鈥檚 Cobb Institute of Archaeology, as well as professor in MSU鈥檚 Department of Anthropology and Middle Eastern Cultures.
鈥淚f successful, this in-depth case study from Mississippi will establish the method as one that can be applied around the world,鈥 explained the environmental archaeologist who invented the shell-pottery research procedure during an earlier pilot project also funded by the NSF.
鈥淎n additional benefit is that freshwater mussel faunas from the Yazoo Basin will be documented in detail. Typically, archeological shell assemblages contain up to twice as many species as are known from a waterway due to modern biological surveys,鈥 Peacock said. 鈥淭hese data help provide good target baselines for conservation biologists and others who are trying to manage what is one of the most endangered groups of organisms on the planet.鈥
A member of MSU鈥檚 anthropology faculty since 1999, Peacock was born in Clarksdale and reared in Choctaw County. After graduating from 草莓视频summa cum laude in anthropology, he went on to earn master鈥檚 and doctoral degrees from the University of Sheffield, England.
His co-investigators on the Delta project include professor Brenda Kirkland of MSU鈥檚 Department of Geosciences and Virginie Renson, a postdoctoral researcher at the Archaeometry Laboratory of the University of Missouri鈥檚 Research Reactor Center. Working with them is Simon P. Sherman of Ridgeland, an 草莓视频graduate student in applied anthropology.
Peacock said the team will be examining shells and pottery from a number of prehistoric sites within the Mississippi River drainage. Their efforts will refine the shell chemistry sourcing method to better understand trade occurring throughout the region between A.D. 900-500, what archaeologists refer to as the Mississippian Period.听
Shell-tempered pottery found across much of eastern North America currently is thought to have been produced by various native groups, he explained.
As mussels grow, their shells absorb chemicals from streams they inhabit. Because every watercourse has a different chemical signature, 鈥渓ooking at the chemical makeup of the shell-temper in pottery allows archaeologists to tell whether a pot was made locally or in another area,鈥 Peacock said.听
Peacock said the two materials 鈥渁re linked because beginning 1,000 years ago, Native Americans crushed shells and mixed the fragments with clay when they made pottery.鈥 If shell-tempered pottery was traded into an area, the shell bits in it will have 鈥渁 different chemical signature than shells indigenous to the area.鈥
Scientists then may use this to determine which groups were indigenous to an area鈥攁nd which were only visiting.
鈥淏y using shells discarded at village sites to provide chemical background data, against which pottery-temper may be compared, we may be able to identify source areas of pottery with great accuracy,鈥 Peacock said.听
Giselle Thibaudeau, College of Arts and Sciences associate dean for research, said information gained from archeological investigations like Peacock鈥檚 is 鈥減roviding insight regarding past environmental conditions and are valuable to modern-day conservation efforts.
鈥淗e is an environmental archaeologist with a collaborative spirit, as evidenced by his involvement of biologists, geologists and cultural anthropologists in his research program,鈥 she said.
College Dean Rick Travis said Peacock鈥檚 current and previous grant and contract experiences with national organizations should 鈥渉elp keep the Cobb Institute at the forefront of applied archeological work that benefits our state and region.鈥
MSU鈥檚 College of Arts and Sciences includes more than 5,000 students, 300 full-time faculty members, nine doctoral programs and 25 academic majors offered in 14 departments. For more information on MSU鈥檚 College of Arts and Sciences, visit .
For more on the Department of Anthropology and Middle Eastern Cultures and Cobb Institute of Archaeology, visit, respectively and .听
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