Estimating the hydrogen isotopic composition of past precipitation using leaf-waxes from western Africa
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Adegbie, 2003, Glacial millennial-scale fluctuations in central African precipitation recorded in terrigenous sediment supply and freshwater signals offshore Cameroon, Palaeogeography, Palaeoclimatology, Palaeoecology, 197, 323, 10.1016/S0031-0182(03)00474-7
Bird, 1995, Terrestrial vegetation change inferred from n-alkane δ13C analysis in the marine environment, Geochimica et Cosmochimica Acta, 59, 2853, 10.1016/0016-7037(95)00160-2
Bowen, 2003, Interpolating the isotopic composition of modern meteoric precipitation, Water Resources Research, 39, 1299, 10.1029/2003WR002086
Braconnot, 2007, Results of PMIP2 coupled simulations of the Mid-Holocene and Last Glacial Maximum – part 1: experiments and large-scale features, Climate of the Past, 3, 261, 10.5194/cp-3-261-2007
Bremner, 1993, Mineralogy and geochemistry of the clay fraction of sediments from the Namibian continental margin and the adjacent hinterland, Marine Geology, 115, 85, 10.1016/0025-3227(93)90076-8
Castañeda, 2009, Wet phases in the Sahara/Sahel region and human migration patterns in North Africa, Proceedings of the National Academy of Sciences of the United States of America, 106, 20159, 10.1073/pnas.0905771106
Chase, 2007, Late Quaternary dynamics of southern Africa's winter rainfall zone, Earth-science Reviews, 84, 103, 10.1016/j.earscirev.2007.06.002
Chase, 2009, A record of rapid Holocene climate change preserved in hyrax middens from southwestern Africa, Geology, 37, 703, 10.1130/G30053A.1
Chikaraishi, 2004, Hydrogen and carbon isotopic fractionations of lipid biosynthesis among terrestrial (C3, C4 and CAM) and aquatic plants, Phytochemistry, 65, 1369, 10.1016/j.phytochem.2004.03.036
Collins, 2011, Interhemispheric symmetry of the tropical African rainbelt over the past 23,000 years, Nature Geoscience, 4, 42, 10.1038/ngeo1039
Conte, 2002, Long-range atmospheric transport of terrestrial biomarkers to the western North Atlantic, Global Biogeochemical Cycles, 16, 1142, 10.1029/2002GB001922
Craig, 1961, Isotopic variations in meteoric waters, Science, 133, 1702, 10.1126/science.133.3465.1702
Dansgaard, 1964, Stable isotopes in precipitation, Tellus, 16, 436, 10.1111/j.2153-3490.1964.tb00181.x
Dayem, 2010, Lessons learned from oxygen isotopes in modern precipitation applied to interpretation of speleothem records of paleoclimate from eastern Asia, Earth and Planetary Science Letters, 295, 219, 10.1016/j.epsl.2010.04.003
de Abreu, 2003, Millennial-scale oceanic climate variability off the Western Iberian margin during the last two glacial periods, Marine Geology, 196, 1, 10.1016/S0025-3227(03)00046-X
Diefendorf, 2010, Global patterns in leaf 13C discrimination and implications for studies of past and future climate, Proceedings of the National Academy of Sciences, 107, 5738, 10.1073/pnas.0910513107
Douglas, 2012, Aridity and vegetation composition are important determinants of leaf-wax δD values in southeastern Mexico and Central America, Geochimica et Cosmochimica Acta, 97, 24, 10.1016/j.gca.2012.09.005
Drenzek, 2009, A new look at old carbon in active margin sediments, Geology, 37, 239, 10.1130/G25351A.1
Dupont, 2008, Thirty thousand years of vegetation development and climate change in Angola (Ocean Drilling Program Site 1078), Climate of the Past, 4, 107, 10.5194/cp-4-107-2008
Dupont, 2000, Vegetation change in equatorial West Africa: time-slices for the last 150 ka, Palaeogeography, Palaeoclimatology, Palaeoecology, 155, 95, 10.1016/S0031-0182(99)00095-4
Dyke, 2002, The Laurentide and Innuitian ice sheets during the Last Glacial Maximum, Quaternary Science Reviews, 21, 9, 10.1016/S0277-3791(01)00095-6
Eckardt, 2005, SeaWiFS identifies dust sources in the Namib Desert, International Journal of Remote Sensing, 26, 4159, 10.1080/01431160500113112
Eckardt, F.D., Soderberg, K., Coop, L.J., Muller, A.A., Vickery, K.J., Grandin, R.D., Jack, C., Kapalanga, T.S., Henschel, J. The nature of moisture at Gobabeb, in the central Namib Desert. Journal of Arid Environments, in press.
Edwards, 2010, The origins of C4 grasslands: integrating evolutionary and ecosystem science, Science, 328, 587, 10.1126/science.1177216
Eglinton, 2002, Composition, age, and provenance of organic matter in NW African dust over the Atlantic Ocean, Geochemistry Geophysics Geosystems, 3, 1050, 10.1029/2001GC000269
Eitel, 2006, Environmental changes at the eastern Namib Desert margin before and after the Last Glacial Maximum: new evidence from fluvial deposits in the upper Hoanib River catchment, northwestern Namibia, Palaeogeography, Palaeoclimatology, Palaeoecology, 234, 201, 10.1016/j.palaeo.2005.10.015
Feakins, 2010, Controls on the D/H ratios of plant leaf waxes in an arid ecosystem, Geochimica et Cosmochimica Acta, 74, 2128, 10.1016/j.gca.2010.01.016
Frierson, 2007, Width of the Hadley cell in simple and comprehensive general circulation models, Geophysical Research Letters, 34, L18804, 10.1029/2007GL031115
Galy, 2011, The provenance of vegetation and environmental signatures encoded in vascular plant biomarkers carried by the Ganges and Brahmaputra rivers, Earth and Planetary Science Letters, 304, 1, 10.1016/j.epsl.2011.02.003
Gao, 2012, Assessing the rate and timing of leaf wax regeneration in Fraxinus americana using stable hydrogen isotope labeling, Rapid Communications in Mass Spectrometry, 26, 2241, 10.1002/rcm.6348
Gasse, 2000, Hydrological changes in the African tropics since the Last Glacial Maximum, Quaternary Science Reviews, 19, 189, 10.1016/S0277-3791(99)00061-X
Gersonde, 2005, Sea-surface temperature and sea ice distribution of the Southern Ocean at the EPILOG Last Glacial Maximum – a circum-Antarctic view based on siliceous microfossil records, Quaternary Science Reviews, 24, 869, 10.1016/j.quascirev.2004.07.015
Gimeno, 2010, On the origin of continental precipitation, Geophysical Research Letters, 37, L13804, 10.1029/2010GL043712
Gingele, 1996, Holocene climatic optimum in Southwest Africa–evidence from the marine clay mineral record, Palaeogeography, Palaeoclimatology, Palaeoecology, 122, 77, 10.1016/0031-0182(96)00076-4
Goudie, 2001, Saharan dust storms: nature and consequences, Earth-science Reviews, 56, 179, 10.1016/S0012-8252(01)00067-8
Gritti, 2010, Simulated effects of a seasonal precipitation change on the vegetation in tropical Africa, Climate of the Past, 6, 169, 10.5194/cp-6-169-2010
Grousset, 1998, Saharan wind regimes traced by the Sr-Nd isotopic composition of subtropical Atlantic sediments: Last Glacial Maximum vs today, Quaternary Science Reviews, 17, 395, 10.1016/S0277-3791(97)00048-6
Hayward, 1987
Heine, 2002, A paleohydrologic reinterpretation of the Homeb Silts, Kuiseb River, central Namib Desert (Namibia) and paleoclimatic implications, Catena, 48, 107, 10.1016/S0341-8162(02)00012-7
Hessler, 2010, Millennial-scale changes in vegetation records from tropical Africa and South America during the last glacial, Quaternary Science Reviews, 29, 2882, 10.1016/j.quascirev.2009.11.029
Hou, 2008, Can sedimentary leaf waxes record D/H ratios of continental precipitation? Field, model, and experimental assessments, Geochimica et Cosmochimica Acta, 72, 3503, 10.1016/j.gca.2008.04.030
Hou, 2007, Evidence for water use efficiency as an important factor in determining the δD values of tree leaf waxes, Organic Geochemistry, 38, 1251, 10.1016/j.orggeochem.2007.03.011
IAEA/WMO, 2006
Jansen, 1996, Late Quaternary movements of the Angola-Benguela-Front, SE Atlantic, and implications for advection in the equatorial ocean, 553
Kageyama, 2009, Glacial climate sensitivity to different states of the Atlantic Meridional overturning circulation: results from the IPSL model, Climate of the Past, 5, 551, 10.5194/cp-5-551-2009
Kahmen, 2011, Leaf wax n-alkane δD values are determined early in the ontogeny of Populus trichocarpa leaves when grown under controlled environmental conditions, Plant, Cell & Environment, 34, 1639, 10.1111/j.1365-3040.2011.02360.x
Kahmen, 2012, Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants II: observational evidence and global implications, Geochimica et Cosmochimica Acta
Kahmen, 2012, Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants I: experimental evidence and mechanistic insights, Geochimica et Cosmochimica Acta
Kalnay, 1996, The NCEP/NCAR 40-year reanalysis project, Bulletin of the American Meteorological Society, 77, 437, 10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2
Kang, 2008, The response of the ITCZ to extratropical thermal forcings: idealized slab ocean experiments with a GCM, Journal of Climate, 21, 3521, 10.1175/2007JCLI2146.1
Kim, 2003, Reconstruction of SE trade-wind intensity based on sea-surface temperature gradients in the Southeast Atlantic over the last 25 kyr, Geophysical Research Letters, 30, 2144, 10.1029/2003GL017557
Kim, 2002, Interhemispheric comparison of deglacial sea-surface temperature patterns in Atlantic eastern boundary currents, Earth and Planetary Science Letters, 194, 383, 10.1016/S0012-821X(01)00545-3
Kim, 2008, High-resolution climate simulation of the last glacial maximum, Climate Dynamics, 31, 1, 10.1007/s00382-007-0332-z
Koch, 2008, The hydrophobic coatings of plant surfaces: epicuticular wax crystals and their morphologies, crystallinity and molecular self-assembly, Micron, 39, 759, 10.1016/j.micron.2007.11.010
Kolattukudy, 1976
Krull, 2006, Compound-specific δ13C and δ2H analyses of plant and soil organic matter: a preliminary assessment of the effects of vegetation change on ecosystem hydrology, Soil Biology and Biochemistry, 38, 3211, 10.1016/j.soilbio.2006.04.008
Lancaster, 1984, The climate of the central Namib Desert, Madoqua, 14, 5
Lancaster, 2002, How dry was dry?-Late Pleistocene palaeoclimates in the Namib Desert, Quaternary Science Reviews, 21, 769, 10.1016/S0277-3791(01)00126-3
LeGrande, 2009, Sources of Holocene variability of oxygen isotopes in paleoclimate archives, Climate of the Past, 5, 441, 10.5194/cp-5-441-2009
Levin, 2009, Isotopic composition of waters from Ethiopia and Kenya: insights into moisture sources for eastern Africa, Journal of Geophysical Research, 114, D23306, 10.1029/2009JD012166
Lewis, 2010, Water vapour source impacts on oxygen isotope variability in tropical precipitation during Heinrich events, Climate of the Past, 6, 325, 10.5194/cp-6-325-2010
Lézine, 1989, Late quaternary vegetation and climate of the Sahel, Quaternary Research, 32, 317, 10.1016/0033-5894(89)90098-7
Lézine, 2011, Sahara and Sahel vulnerability to climate changes, lessons from Holocene hydrological data, Quaternary Science Reviews, 30, 3001, 10.1016/j.quascirev.2011.07.006
Louw, 1980, Exploitation of fog water by a Perennial Namib Dune grass, Stipagrotis Sabulicola, South African Journal of Science, 76, 38
Lüttge, 2004, Ecophysiology of crassulacean acid metabolism (CAM), Annals of Botany, 93, 629, 10.1093/aob/mch087
MARGO, 2009, Constraints on the magnitude and patterns of ocean cooling at the Last Glacial Maximum, Nature Geoscience, 2, 127, 10.1038/ngeo411
Martins, 1982, Geochemistry of the Niger river, 397
McManus, 2004, Collapse and rapid resumption of Atlantic meridional circulation linked to deglacial climate changes, Nature, 428, 834, 10.1038/nature02494
Mohr, 1999, The contribution to tropical rainfall with respect to convective system type, size, and intensity estimated from the 85-GHz ice-scattering signature, Journal of Applied Meteorology, 38, 596, 10.1175/1520-0450(1999)038<0596:TCTTRW>2.0.CO;2
Mohr, 1996, Mesoscale convective systems defined by their 85-GHz ice scattering signature: size and intensity comparison over tropical oceans and continents, Monthly Weather Review, 124, 2417, 10.1175/1520-0493(1996)124<2417:MCSDBT>2.0.CO;2
Mulitza, 2008, Sahel megadroughts triggered by glacial slowdowns of Atlantic meridional overturning, Paleoceanography, 23, PA4206, 10.1029/2008PA001637
Nesbitt, 2006, Storm morphology and rainfall characteristics of TRMM precipitation features, Monthly Weather Review, 134, 2702, 10.1175/MWR3200.1
Ngomanda, 2009, Western equatorial African forest-savanna mosaics: a legacy of late Holocene climatic change?, Climate of the Past, 5, 341, 10.5194/cpd-5-341-2009
Nicholson, 2003, The seasonal evolution of the atmospheric circulation over West Africa and equatorial Africa, Journal of Climate, 16, 1013, 10.1175/1520-0442(2003)016<1013:TSEOTA>2.0.CO;2
Niedermeyer, 2009, Extratropical forcing of Sahel aridity during Heinrich stadials, Geophysical Research Letters, 36, L20707, 10.1029/2009GL039687
Niedermeyer, 2010, Orbital- and millennial-scale changes in the hydrologic cycle and vegetation in the western African Sahel: insights from individual plant wax δD and δ13C, Quaternary Science Reviews, 29, 2996, 10.1016/j.quascirev.2010.06.039
Olivier, 1989, The influence of upwelling extent upon fog incidence at Lüderitz, southern Africa, International Journal of Climatology, 9, 69, 10.1002/joc.3370090106
Pausata, 2011, Chinese stalagmite δ18O controlled by changes in the Indian monsoon during a simulated Heinrich event, Nature Geoscience, 4, 474, 10.1038/ngeo1169
Peters, 1988, The structure of West African Squall Lines and their environmental moisture budget, Meteorology and Atmospheric Physics, 39, 74, 10.1007/BF01041933
Polissar, 2010, Effects of aridity and vegetation on plant-wax δD in modern lake sediments, Geochimica et Cosmochimica Acta, 74, 5785, 10.1016/j.gca.2010.06.018
Prospero, 2002, Environmental characterization of global sources of atmospheric soil dust identified with the Nimbus 7 Total Ozone Mapping Spectrometer (TOMS) absorbing aerosol product, Reviews of Geophysics, 40, 31, 10.1029/2000RG000095
Rao, 2009, Compound specific δD values of long chain n-alkanes derived from terrestrial higher plants are indicative of the δD of meteoric waters: evidence from surface soils in eastern China, Organic Geochemistry, 40, 922, 10.1016/j.orggeochem.2009.04.011
Ratmeyer, 1999, Lithogenic particle fluxes and grain size distributions in the deep ocean off northwest Africa: implications for seasonal changes of aeolian dust input and downward transport, Deep Sea Research Part I: Oceanographic Research Papers, 46, 1289, 10.1016/S0967-0637(99)00008-4
Risi, 2008, Influence of convective processes on the isotopic composition (δ18O and δD) of precipitation and water vapor in the tropics: 2. Physical interpretation of the amount effect, Journal of Geophysical Research, 113, D19306, 10.1029/2008JD009943
Risi, 2010, Evolution of the stable water isotopic composition of the rain sampled along Sahelian squall lines, Quarterly Journal of the Royal Meteorological Society, 136, 227, 10.1002/qj.485
Risi, 2008, What controls the isotopic composition of the African monsoon precipitation? Insights from event-based precipitation collected during the 2006 AMMA field campaign, Geophysical Research Letters, 35, L24808, 10.1029/2008GL035920
Risi, 2010, Water-stable isotopes in the LMDZ4 general circulation model: model evaluation for present-day and past climates and applications to climatic interpretations of tropical isotopic records, Journal of Geophysical Research, 115, D12118, 10.1029/2009JD013255
Rommerskirchen, 2003, A north to south transect of Holocene southeast Atlantic continental margin sediments: relationship between aerosol transport and compound-specific δ13C land plant biomarker and pollen records, Geochemistry Geophysics Geosystems, 4, 1101, 10.1029/2003GC000541
Rouault, 2003, South East tropical Atlantic warm events and southern African rainfall, Geophysical Research Letters, 30, 8009, 10.1029/2002GL014840
Rozanski, 1992, Relation between long-term trends of Oxygen-18 isotope composition of precipitation and climate, Science, 258, 981, 10.1126/science.258.5084.981
Rozanski, 1993, Isotopic patterns in modern global precipitation, 1
Sachse, 2012, Molecular paleohydrology: interpreting the hydrogen-isotopic composition of lipid biomarkers from photosynthesizing organisms, Annual Review of Earth and Planetary Sciences, 40, 221, 10.1146/annurev-earth-042711-105535
Sachse, 2010, Leaf wax n-alkane δD values of field-grown barley reflect leaf water δD values at the time of leaf formation, Geochimica et Cosmochimica Acta, 74, 6741, 10.1016/j.gca.2010.08.033
Sachse, 2009, Significant seasonal variation in the hydrogen isotopic composition of leaf-wax lipids for two deciduous tree ecosystems (Fagus sylvativa and Acer pseudoplatanus), Organic Geochemistry, 40, 732, 10.1016/j.orggeochem.2009.02.008
Sachse, 2004, Hydrogen isotope ratios of recent lacustrine sedimentary n-alkanes record modern climate variability, Geochimica et Cosmochimica Acta, 68, 4877, 10.1016/j.gca.2004.06.004
Salati, 1979, Recycling of water in the Amazon Basin: an isotopic study, Water Resources Research, 15, 1250, 10.1029/WR015i005p01250
Sall, 2007, Rainfall distribution over the Fouta Djallon – Guinea, Atmospheric Research, 86, 149, 10.1016/j.atmosres.2007.03.008
Schachtschneider, 2010, The relationship between fog, floods, groundwater and tree growth along the lower Kuiseb River in the hyperarid Namib, Journal of Arid Environments, 74, 1632, 10.1016/j.jaridenv.2010.05.027
Schefuß, 2011, Forcing of wet phases in southeast Africa over the past 17,000 years, Nature, 480, 509, 10.1038/nature10685
Schefuß, 2003, African vegetation controlled by tropical sea surface temperatures in the mid-Pleistocene period, Nature, 422, 418, 10.1038/nature01500
Schefuß, 2005, Climatic controls on central African hydrology during the past 20,000 years, Nature, 437, 1003, 10.1038/nature03945
Schimmelmann, 1999, D/H isotope ratios of kerogen, bitumen, oil, and water in hydrous pyrolysis of source rocks containing kerogen types I, II, IIS, and III, Geochimica et Cosmochimica Acta, 63, 3751, 10.1016/S0016-7037(99)00221-5
Sessions, 1999, Fractionation of hydrogen isotopes in lipid biosynthesis, Organic Geochemistry, 30, 1193, 10.1016/S0146-6380(99)00094-7
Shanahan, 2006, Paleoclimatic variations in West Africa from a record of late Pleistocene and Holocene lake level stands of Lake Bosumtwi, Ghana, Palaeogeography, Palaeoclimatology, Palaeoecology, 242, 287, 10.1016/j.palaeo.2006.06.007
Shepherd, 2006, The effects of stress on plant cuticular waxes, New Phytologist, 171, 469, 10.1111/j.1469-8137.2006.01826.x
Shi, 1998, Vegetation and climate changes during the last 21 000 years in S.W. Africa based on a marine pollen record, Vegetation History and Archaeobotany, 7, 127, 10.1007/BF01374001
Shi, 2001, Southeast trade wind variations during the last 135 kyr: evidence from pollen spectra in eastern South Atlantic sediments, Earth and Planetary Science Letters, 187, 311, 10.1016/S0012-821X(01)00267-9
Simoneit, 1988, Organic matter of the troposphere-IV. Lipids in Harmattan aerosols of Nigeria, Atmospheric Environment, 22, 983, 10.1016/0004-6981(88)90276-4
Smith, 2006, Influence of physiology and climate on δD of leaf wax n-alkanes from C3 and C4 grasses, Geochimica et Cosmochimica Acta, 70, 1172, 10.1016/j.gca.2005.11.006
Street-Perrott, 1989
Stuiver, 2005
Stuut, 2005, Provenance of present-day eolian dust collected off NW Africa, Journal of Geophysical Research, 110, D04202, 10.1029/2004JD005161
Stuut, 2002, A 300-kyr record of aridity and wind strength in southwestern Africa: inferences from grain-size distributions of sediments on Walvis Ridge, SE Atlantic, Marine Geology, 180, 221, 10.1016/S0025-3227(01)00215-8
Svendsen, 2004, Late Quaternary ice sheet history of northern Eurasia, Quaternary Science Reviews, 23, 1229, 10.1016/j.quascirev.2003.12.008
Taupin, 2000, Rainfall characteristics (δ18O, δ2H, ΔT and ΔHr ) in western Africa: regional scale and influence of irrigated areas, Journal of Geophysical Research, 105, 11911, 10.1029/1999JD901032
Tharammal, 2012, Influence of LGM boundary conditions on the global water isotope distribution in an atmospheric general circulation model, Climate of the Past Discussions, 8, 10.5194/cpd-8-1319-2012
Thomas, 2012, Extreme events as drivers of early human behaviour in Africa? The case for variability, not catastrophic drought, Journal of Quaternary Science, 27, 7, 10.1002/jqs.1557
Tierney, 2011, Model, proxy and isotopic perspectives on the East African Humid Period, Earth and Planetary Science Letters, 307, 103, 10.1016/j.epsl.2011.04.038
Tierney, 2008, Northern hemisphere controls on tropical southeast African climate during the past 60,000 years, Science, 322, 252, 10.1126/science.1160485
Tierney, 2011, Late Quaternary behavior of the East African monsoon and the importance of the Congo Air Boundary, Quaternary Science Reviews, 30, 798, 10.1016/j.quascirev.2011.01.017
Tjallingii, 2008, Coherent high- and low-latitude control of the northwest African hydrological balance, Nature Geoscience, 1, 670, 10.1038/ngeo289
Trochain, 1980
Vidal, 1997, Evidence for changes in the North Atlantic Deep Water linked to meltwater surges during the Heinrich events, Earth and Planetary Science Letters, 146, 13, 10.1016/S0012-821X(96)00192-6
Vincens, 2010, Vegetation response to the African Humid Period termination in central Cameroon (7° N) – new pollen insight from Lake Mbalang, Climate of the Past, 5, 281, 10.5194/cp-6-281-2010
Vogts, 2009, Distribution patterns and stable carbon isotopic composition of alkanes and alkan-1-ols from plant waxes of African rain forest and savanna C3 species, Organic Geochemistry, 40, 1037, 10.1016/j.orggeochem.2009.07.011
Waelbroeck, 2002, Sea-level and deep water temperature changes derived from benthic foraminifera isotopic records, Quaternary Science Reviews, 21, 295, 10.1016/S0277-3791(01)00101-9
Wang, 2012, What does leaf wax δD from a mixed C3/C4 vegetation region tell us?, Geochimica et Cosmochimica Acta
Wefer, 1993, Seasonal patterns of vertical particle flux in equatorial and coastal upwelling areas of the eastern Atlantic, Deep Sea Research Part I: Oceanographic Research Papers, 40, 1613, 10.1016/0967-0637(93)90019-Y
Weijers, 2007, Coupled thermal and hydrological evolution of tropical Africa over the last deglaciation, Science, 315, 1701, 10.1126/science.1138131
Weldeab, 2011, Spatio-temporal evolution of the West African monsoon during the last deglaciation, Geophysical Research Letters, 38, L13703, 10.1029/2011GL047805
Weldeab, 2007, 155,000 years of West African monsoon and ocean thermal evolution, Science, 316, 1303, 10.1126/science.1140461
Weldeab, 2005, Holocene African droughts relate to eastern equatorial Atlantic cooling, Geology, 33, 981, 10.1130/G21874.1
White, 1983, The vegetation of Africa, Natural Resources Research, 20, 1
Yang, 2003, Preservation of lipid hydrogen isotope ratios in Miocene lacustrine sediments and plant fossils at Clarkia, northern Idaho, USA, Organic Geochemistry, 34, 413, 10.1016/S0146-6380(02)00212-7