Results 261 to 270 of about 13,651 (294)

Oxygen and Hydrogen Stable Isotopes in Earth’s Hydrologic Cycle

2016
Today’s geochemistry would be hard to imagine without stable isotope research that enabled the investigation of many fundamental geoscientific questions. Stable isotopes play an important role in water research and proved to be essential for understanding basic hydrological processes including groundwater recharge, origin of precipitation, and runoff ...
Robert van Geldern, Johannes A. C. Barth
openaire   +1 more source

Hydrogen and Oxygen Isotopic Composition of Groundwater in Volcanic Regions

2012
Groundwaters of modern volcanic regions are of interest to specialists as are the deep groundwaters of sedimentary basins, using isotope techniques in their studies, in order to elucidate the problems of their formation and solve a number of applied problems of interest concerning their utilization.
V. I. Ferronsky, V. A. Polyakov
openaire   +1 more source

Hydrogen, oxygen and silicon isotope systematics in lunar material

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1977
Abstract In this review the following conclusions are supported: (1) The bulk of the hydrogen in the lunar soils represents protons implanted from the solar wind and is essentially deuterium free. (2) Rarely samples of relatively detuerium rich hydrogen are found, probably resulting from in situ spallation reactions.
openaire   +1 more source

Oxygen and Hydrogen Isotope Measurements in Plant Cellulose Analysis

1989
Isotopes are atoms containing the same number of protons but a different number of neutrons in their nucleus. Most of us are familiar with unstable isotopes (e.g., Carbon-14) which decay to another element (e.g., Carbon-14 decays to Nitrogen-14).
openaire   +1 more source

Oxygen and Hydrogen Isotope Ratios in Sedimentary Rocks and Minerals

1967
O18/O16 and D/H measurements were made on a variety of sedimentary rocks and minerals, with special emphasis on the fine-grained, predominantly clay mineral fraction of the sediments. The interlayer water was removed from clay minerals prior to the isotopic analyses.
openaire   +1 more source

Characteristics of Hydrogen and Oxygen Isotopes and Noble Gas Isotopes in the Groundwater of Weishan, Wudalianchi, Northeast China

Acta Geologica Sinica, 2022
Xuelian Huang, Jian Kuang, Shihua Qi
exaly  

Stable Oxygen and Hydrogen Isotopes in Precipitation

2005
L.L. Gourcy, M. Groening, P.K. Aggarwal
openaire   +1 more source

The Isotopes of Hydrogen and Oxygen

2010
openaire   +1 more source

Covariation Between Oxygen and Hydrogen Stable Isotopes Declines Along the Path From Xylem Water to Wood Cellulose Across an Aridity Gradient

New Phytologist, 2023
Daniel B. Nelson, Guillaume Tcherkez, Lucas A. Cernusak   +2 more
exaly  

Effect of the El Niño–Southern Oscillation on Hydrogen and Oxygen Isotope Ratios of Precipitation in Guilin, SW China

Isotopes in Environmental and Health Studies, 2021
Moucheng Pan, Meiliang Zhang
exaly