Results 1 to 10 of about 10,063 (118)

Characteristics of Stable Hydrogen and Oxygen Isotopes of Soil Moisture under Different Land Use in Dry Hot Valley of Yuanmou

open access: yesOpen Chemistry, 2019
Soil moisture, stable hydrogen, and oxygen isotopes were sampled and determined in a demonstration area of soil and moisture conservation at the Laocheng Town of Yuanmou County in Chuxiong Prefecture, Yunnan of three land use types: Leucaena Benth ...
Han Jiao-Jiao   +3 more
doaj   +2 more sources

Stable Hydrogen and Oxygen Isotopes for Groundwater Sources of Penghu Islands, Taiwan

open access: yesGeosciences, 2018
This study used stable hydrogen and oxygen isotopes as natural tracers to investigate their isotopic composition in precipitation, and in shallow and deep groundwater in the Penghu Islands in the Taiwan Strait.
Hsin-Fu Yeh, Jhe-Wei Lee
doaj   +3 more sources

Triple Oxygen Isotope Paleoaltimetry of Crystalline Rocks

open access: yesFrontiers in Earth Science, 2021
Triple oxygen isotopes of hydrothermally altered minerals from crystalline rocks can be used to determine past elevations of mountain ranges. This method uses all three isotopes of oxygen (16O, 17O, and 18O) to create arrays that can be extrapolated back
C. Page Chamberlain   +6 more
doaj   +1 more source

Spatial and temporal characteristics of isotopes of different water sources and implications for water circulation in mining areas

open access: yesShui kexue jinzhan, 2022
This study aimed to characterize the temporal and spatial variation in isotopes of different water sources of the Pingshuo mining area to identify the significance of coal mining activities to the regional water cycle.
Long SUN   +4 more
doaj   +1 more source

Composition and Spatial Distribution Characteristics of Hydrogen and Oxygen Isotopes of Surface Water in Altay, Xinjiang Province

open access: yesYankuang ceshi, 2021
BACKGROUND Hydrogen and oxygen isotopes can be used to identify water sources and trace water cycles and have been used in hydrogeochemistry since the 1950s.
GAO Juan-qin   +6 more
doaj   +1 more source

Redistribution of hydrogen and oxygen isotopes in groundwater flow systems: From altitude effect to depth effect

open access: yesShuiwen dizhi gongcheng dizhi, 2023
The hydrogen and oxygen isotopes in precipitation have the altitude effect, and they participate in the groundwater circulation after the infiltration of precipitation.
Pengfei HAN   +3 more
doaj   +1 more source

Isotopic and magnetic proxies are good indicators of millennial-scale variability of the East Asian monsoon

open access: yesCommunications Earth & Environment, 2023
Past East Asian Monsoon variability has been reconstructed using oxygen isotopes of cave speleothems as well as proxy indicators from Chinese loess sequences.
Louise Fuchs   +6 more
doaj   +1 more source

Building Mexican isoscapes: Oxygen and hydrogen isotope data of meteoric water sampled across Mexico

open access: yesData in Brief, 2021
Oxygen and hydrogen isotope data of meteoric water samples are compiled from several States across Mexico. This dataset includes 287 oxygen and hydrogen (and deuterium excess) isotope data corresponding to meteoric water collected from the surface ...
Diana K. Moreiras Reynaga   +5 more
doaj   +1 more source

Annual variation in hydrogen and oxygen isotopes of river water in the Huashan watershed and sampling scheme optimization

open access: yesShui kexue jinzhan, 2023
The investigation on river water isotope characteristics of small watersheds and the sampling scheme are of great significance for a better understanding of the precipitation-runoff relationship, and for the establishment of an isotope hydrological ...
Aimin LIAO   +6 more
doaj   +1 more source

Isotopes of Carbon, Oxygen, and Hydrogen Ethanol in Fruit Wines [PDF]

open access: yesТехника и технология пищевых производств, 2020
Introduction. Like any other food product, alcoholic drinks are subject to falsification. The present research featured various methods of analysis that can be applied to control the quality and authenticity of wine production.
Oganesyants Lev A.   +3 more
doaj   +1 more source

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