Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments
Hydrogen and oxygen isotopic compositions of sediment-bound water, and the product of water-rock interaction, have an important significance to the study of palaeoclimate and palaeoenvironmental evolution.In this study, combined thermogravimetry, vacuum extraction and liquid water isotopic analysis...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2016-01-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.01.012 |
| _version_ | 1811168446575017984 |
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| author | YANG Cheng-fan YANG Shou-ye |
| author_facet | YANG Cheng-fan YANG Shou-ye |
| author_sort | YANG Cheng-fan |
| collection | DOAJ |
| description | Hydrogen and oxygen isotopic compositions of sediment-bound water, and the product of water-rock interaction, have an important significance to the study of palaeoclimate and palaeoenvironmental evolution.In this study, combined thermogravimetry, vacuum extraction and liquid water isotopic analysis technology are used to extract different sediment-bound water in the weathering profile sediments of hunan, and analyze their hydrogen and oxygen isotopes.Based on the thermogravimetric data, four temperature intervals are determined, 0-120℃, 120-300℃, 300-600℃ and 600-900℃.The host characteristics of water at the temperature intervals of 120-300℃ and 300-600℃ cannot be constrained.The water at 0-120℃and 600-900℃ is determined as absorbed water and structural water.The water extracted from 0-120℃ is termed as absorbed water, which is mainly sourced from atmospheric precipitation after evaporation.As a result of isotopic equilibrium fractionation, the tighter the relationship between sediment-bound water and crystal structure, the more negative the relationship for hydrogen isotopic composition, and the more positive for oxygen isotopic composition.This method can provide valuable information for the study of earth surface processes and hydrological cycles. |
| first_indexed | 2024-04-10T16:27:34Z |
| format | Article |
| id | doaj.art-088fdcdf07564e8eafe4b6a28f884035 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:27:34Z |
| publishDate | 2016-01-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-088fdcdf07564e8eafe4b6a28f8840352023-02-09T01:26:19ZengScience Press, PR ChinaYankuang ceshi0254-53572016-01-01351697410.15898/j.cnki.11-2131/td.2016.01.012ykcs-35-1-69Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile SedimentsYANG Cheng-fan0YANG Shou-ye1School of Ocean and Earth Science, Tongji University, Shanghai 200092, ChinaSchool of Ocean and Earth Science, Tongji University, Shanghai 200092, ChinaHydrogen and oxygen isotopic compositions of sediment-bound water, and the product of water-rock interaction, have an important significance to the study of palaeoclimate and palaeoenvironmental evolution.In this study, combined thermogravimetry, vacuum extraction and liquid water isotopic analysis technology are used to extract different sediment-bound water in the weathering profile sediments of hunan, and analyze their hydrogen and oxygen isotopes.Based on the thermogravimetric data, four temperature intervals are determined, 0-120℃, 120-300℃, 300-600℃ and 600-900℃.The host characteristics of water at the temperature intervals of 120-300℃ and 300-600℃ cannot be constrained.The water at 0-120℃and 600-900℃ is determined as absorbed water and structural water.The water extracted from 0-120℃ is termed as absorbed water, which is mainly sourced from atmospheric precipitation after evaporation.As a result of isotopic equilibrium fractionation, the tighter the relationship between sediment-bound water and crystal structure, the more negative the relationship for hydrogen isotopic composition, and the more positive for oxygen isotopic composition.This method can provide valuable information for the study of earth surface processes and hydrological cycles.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.01.012thermogravimetryvacuum extracted technologydifferent water propertieshydrogen and oxygen isotopessedimentweathering profile |
| spellingShingle | YANG Cheng-fan YANG Shou-ye Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments Yankuang ceshi thermogravimetry vacuum extracted technology different water properties hydrogen and oxygen isotopes sediment weathering profile |
| title | Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments |
| title_full | Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments |
| title_fullStr | Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments |
| title_full_unstemmed | Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments |
| title_short | Using Vacuum Extraction-Isotopic Analysis Technology to Study Hydrogen and Oxygen Isotopic Compositions of Water Extracted from Weathering Profile Sediments |
| title_sort | using vacuum extraction isotopic analysis technology to study hydrogen and oxygen isotopic compositions of water extracted from weathering profile sediments |
| topic | thermogravimetry vacuum extracted technology different water properties hydrogen and oxygen isotopes sediment weathering profile |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.01.012 |
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