Hydrogen isotope biogeochemistry | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-29

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Hydrogen_isotope_biogeochemistry


00:01:00 1 History of hydrogen isotopes
00:01:10 1.1 Earliest work
00:03:10 1.2 Impact on physical chemistry
00:07:49 1.3 Impact on biogeochemistry
00:11:27 2 Important concepts
00:11:36 2.1 Stable vs radioactive isotopes
00:12:24 2.2 Isotope notation
00:13:08 2.2.1 Isotope ratio and fractional abundance
00:14:34 2.2.2 Delta notation
00:15:55 2.2.3 Measures of fractionation
00:18:15 2.3 Conservation of mass in mixing calculations
00:21:29 2.4 Naturally occurring isotope variation
00:22:34 2.5 List of well known fractionation effects
00:23:45 2.6 Isotope ratio as tracer for fingerprint
00:24:46 3 Physical chemistry
00:24:55 3.1 Hydrogen isotope formation
00:27:42 3.2 Quantum properties
00:29:00 3.3 Kinetic and equilibrium isotope effects
00:34:19 3.4 Chemistry of hydrogen exchange
00:35:01 3.4.1 Rapid exchange
00:36:00 3.4.2 Carbon bound hydrogen exchange
00:39:09 3.5 Vapor isotope effects
00:40:07 4 Observed variations in isotope abundance
00:41:20 4.1 Hydrosphere
00:41:28 4.1.1 Oceans
00:42:50 4.1.2 Ice Caps
00:43:45 4.1.3 Atmosphere
00:45:01 4.1.4 Precipitation
00:46:20 4.1.5 Lakes and rivers
00:47:07 4.1.6 Soil water
00:47:32 4.2 Biosphere
00:48:16 4.2.1 Marine algae
00:48:25 4.2.2 Phytoplankton and Bacteria
00:49:25 4.2.2.1 The δD values for lipids in bacterial speciessup&#91;72&#93;/sup
00:50:08 4.2.3 Plants
00:52:03 4.2.3.1 Sugars
00:52:53 4.2.3.2 Bulk organic matter
00:53:44 4.2.4 Animals
00:55:38 4.2.4.1 Lipids
00:55:56 4.3 Geosphere
00:56:09 4.3.1 Oilsup&#91;86&#93;/sup
00:56:17 4.3.2 Alkenonessup&#91;89&#93;/sup
00:57:45 4.3.3 Coalssup&#91;92&#93;/sup
00:58:30 4.3.4 Natural gassup&#91;97&#93;/sup
00:58:49 4.3.4.1 Methane
00:59:39 4.3.5 Hsub2/sub Gas
00:59:47 4.3.6 Mineral H
01:00:07 4.3.6.1 Clay minerals
01:00:29 4.4 Extraterrestrial Objects
01:00:48 5 Measurement techniques
01:00:57 5.1 Offline combustion and reduction
01:01:19 5.2 High temperature conversion/Elemental Analyzer (TC/EA)
01:02:10 5.3 Gas chromatography/pyrolysis (GC/pyrolysis)
01:02:37 5.4 Laser spectroscopy
01:03:06 5.5 SNIF-NMR
01:03:27 5.6 Intact molecular isotope ratio mass spectrometry
01:05:55 6 Hydrologic cycle
01:06:44 6.1 Isotope fractionation in the hydrological cycle
01:08:37 6.2 Water isotopes and climate
01:11:15 6.2.1 Temperature reconstruction
01:13:45 6.2.2 Precipitation amount effect
01:15:33 7 Applications
01:20:12 7.1 Isotope hydrology
01:23:17 7.2 Paleo-reconstruction
01:23:26 7.2.1 Ice core records
01:30:45 7.2.2 Biomolecules
01:33:14 7.2.2.1 Cellulose
01:33:50 7.2.2.2 Plant leaf waxes
01:34:52 7.2.2.3 Alkenones
01:36:53 7.2.3 Stable isotope paleoaltimetry
01:37:03 7.3 Fossil fuels
01:39:33 7.3.1 Kerogens and coals
01:39:42 7.3.2 Natural gas
01:43:40 7.3.3 Oil
01:46:18 7.4 Ecohydrology
01:48:17 7.5 Ecology
01:56:28 7.5.1 Migration patterns
01:58:25 7.5.2 Trophic interactions
01:59:44 7.5.3 Microbial metabolism
02:03:01 7.6 Environmental chemistry
02:07:36 7.7 Source attribution and forensics
02:12:09 7.7.1 Food and flavor authentication
02:17:14 7.7.2 Doping
02:23:39 7.7.3 Pharmaceutical copies
02:23:48 7.7.4 Illicit drugs
02:25:59 7.7.5 Provenance of human remains
02:28:28 8 See also
02:31:06 9 References
02:33:06 10 External links
02:34:13 Food and flavor authentication
02:35:06 Doping
02:36:10 Pharmaceutical copies
02:38:19 Illicit drugs
02:39:46 Provenance of human remains
02:40:42 See also



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SUMMARY
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Hydrogen isotope biogeochemistry is the scientific study of biological, geological, and chemical processes in the environment using the distribution and relative abundance of hydrogen isotopes. There are two stable isotopes of hydrogen, protium 1H and deuterium 2H, which vary in relative abundance on the order of hundreds of permil. The ratio between these two species ...