Proceedings of the National Academy of Sciences of the United States of America
Publication date:
2014-01-01
Volume:
111
Pages:
E1066 -
E1067
Publisher:
National Academy of Sciences
Author:
Stassen, Peter
Speijer, Robert ; Thomas, Ellen
Keywords:
Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, Atmosphere, Carbon Isotopes, Climate Change, Geologic Sediments, Geology