Record #:

25673

Author(s):

Derewicz, Mark

Abstract:

Recent research on the Cambrian explosion, which occurred over 500 million years ago, is changing our understanding of evolution and the history of animal life. Geochemist Justine Ries sampled ancient rocks in Namibia and found evidence of sulfur isotopes. His findings provide insight to the environmental conditions of the Cambrian explosion.

Source:

Endeavors (NoCar LD 3941.3 A3), Vol. 26 Issue 2, Winter 2010, p38-40, il, por Periodical Website

Subject(s):

University of North Carolina at Chapel Hill. Institute of Marine Sciences; Geochemistry

Record #:

33497

Author(s):

Not Given

Abstract:

Scientists in the University of North Carolina Department of Environmental Sciences and Engineering say that groundwater supplies located in granite and gneiss rock types in the Blue Ridge, Inner Piedmont, and Raleigh Belt geologic regions are more likely to have high concentrations of radon-222 than other groundwater supplies in North Carolina. The study was supported by the Water Resources Research Institute and provides recommendations for managing radon concentrations in drinking water.

Source:

Water Resources Research Institute News (NoCar HD 1694 N8 N48x), Vol. Issue 245, Aug 1987, p4 Periodical Website

Subject(s):

Groundwater--North Carolina, Western; Water quality management--research; Geochemistry