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Kate Andrzejewski, Greg Ludvigson, Marina Suarez, Paul McCarthy and Peter Flaig
We report estimated stable isotope compositions of Artic paleoprecipitation using phyllosilicates sampled from three paleosols and two bentonites in the Prince Creek Formation (Maastrichtian) in northern Alaska. Previous studies reported a deuterium exce...
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Federico Cervi and Alberto Tazioli
We compared five regression approaches, namely, ordinary least squares, major axis, reduced major axis, robust, and Prais?Winsten to estimate d18O?d2H relationships in four water types (precipitation, surface water, groundwater collected in wells from lo...
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Greg A. Ludvigson, Aaron F. Diefendorf, Marina B. Suarez, Luis A. González, Megan C. Corcoran, Kristen Schlanser, Peter P. Flaig, Paul J. McCarthy, Dolores van der Kolk, David Houseknecht and Margaret Sanders
We report estimated stable isotope compositions of depositional waters and paleoprecipitation from the Cretaceous Arctic to further elucidate the role of the global hydrologic cycle in sustaining polar warmth during that period. Estimates are based on ne...
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Ziqiang Liu, Xinxiao Yu, Guodong Jia and Dandan Wang
Stable isotopes of oxygen and hydrogen were used to estimate seasonal contributions of precipitation to natural spring recharge in Beijing?s mountainous area. Isotopic compositions were shown to be more positive in the dry season and more negative in the...
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Omed Mustafa, Broder Merkel and Stephan M. Weise
Karst springs of the Makook anticline were investigated to get more insight into the hydrogeologic, hydraulic, and hydrodynamic behavior of this complex karst system. Eight springs were studied in terms of hydrogeochemical constituents as well as d18O an...
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