Меловой период

Mills, J. V., Gomes, M. L., Kristall, B., Sageman, B. B., Jacobson, A. D., & Hurtgen, M. T. (2017). Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean. Geology, G38667-1.

http://geology.gsapubs.org/content/earl ... 1.full.pdf
(open access)