Lead Isotopes in North American Coals

Science  05 May 1972:
Vol. 176, Issue 4034, pp. 510-511
DOI: 10.1126/science.176.4034.510


Lead isotopes in North American coals are equally or much more radiogenic than those in the present continental crust (a mean composition for the continental crust is used). It is practicable to distinguish coal and gasoline lead pollutants by examining their isotopic compositions.