This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Clams Show Man Playing Havoc in Environment
Fresh water clams reveal how human activity alters local chemistry. Oak Ridge National Laboratory studies trace elements in shells to track changes in surface water from historic forest cover to modern land use and pollution. Dr. Daniel J. Nelson compares prehistoric river shells with present mollusks to infer shifts in dissolved minerals and ecological balance over centuries. Geographic center note places Butte County, South Dakota.
MENTIONED IN THIS ARTICLE
Washington
Atomic Energy Commission
Oak Ridge National Laboratory
Tennessee
Theaec
Daniel J. Nelson
ORNL
Tennessee River
United States
Alaska
Hawaii
Butter County
S.D
Castle Rock
South Dakota
Monitana
Wyoming