The paleoaltimetry of Tibet: An isotopic perspective

Quade, Jay; Breecker, Daniel O.; Daëron, Mathieu; Eiler, John M.

doi:10.2475/02.2011.01

Cited by 220 publications

(195 citation statements)

References 51 publications

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“…Due to its size, the Tibetan Plateau has substantial variations in climate and moisture source. Thus, the isotopic composition of surface waters along the plateau margins is likely to be complex with no universally applicable isotope-elevation relationship [Quade et al, 2011;Bershaw et al, 2012]. A comprehensive characterization of surface water isotopic composition along the different plateau margins is critical for evaluating how atmospheric processes distribute moisture from distinct sources across this vast region.…”

Section: Introductionmentioning

confidence: 99%

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Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau

Hoke

Liu‐Zeng

et al. 2014

Geochem Geophys Geosyst

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Characterization of the stable isotope compositions (d 18 O and dD) of modern-day surface waters traversing mountain ranges and bordering continental plateaus is important for refining climate models and establishing modern isotope-elevation gradients along mountain ranges. The Longmenshan margin of the Tibetan Plateau is a steep, 4 km topographic front situated near the boundaries between westerlies and Asian monsoon moisture sources, and is previously unexplored with respect to the variation in water isotopic composition with elevation. This study reports stable isotope data from 101 water samples collected from streams, springs, and ponds along the Min River (Minjiang) watershed, which traverses the Longmenshan margin. Local meteoric water lines, d-excess values, and surrounding precipitation and river water data sets suggest that precipitation across the Longmenshan margin is dominated by the East Asian summer monsoon. The increase in d-excess values with increasing catchment elevation breaks down as local moisture recycling becomes important at elevations > 3 km a.s.l.. Along the Min River, however, the d 18 O w and dD w values decrease with increasing catchment elevation, which fit second-order polynomial curves and are well-approximated by a simple Rayleigh fractionation processes. The temperature-corrected oxygen values in authigenic carbonates from the Pleistocene Zoige Basin, north of the Min River watershed, yield elevations equivalent to present by the oxygen isotope-elevation relationship of the Longmenshan margin.

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Section: Introductionmentioning

confidence: 99%

“…O values between the northern and southern Tibetan Plateau is the result of different vapor sources and trajectories [Quade et al, 2011]. These factors may lead to a significant bias of up to 3 km in the estimated catchment elevation [cf.…”

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confidence: 99%

Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau

Hoke

Liu‐Zeng

et al. 2014

Geochem Geophys Geosyst

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“…However, much evidence shows that the Tibetan Plateau reached its modern height during the Oligocene or Eocene (Rowley, 2007;Garzione, 2008;Quade et al, 2011) or most likely between 30 and 20 Ma . In this case, the Qaidam Basin probably remained stable during the late Cenozoic; thus the aridification of the Qaidam Basin would have been less closely linked with the Tibetan Plateau uplift according to the models (e.g., Manabe and Terpstra, 1974;Kutzbach et al, 1989;Manabe and Broccoli, 1990;Raymo and Ruddiman, 1992;Liu et al, 2003).…”

Section: Global Cooling and Tibetan Plateau Upliftmentioning

confidence: 99%

Late Cenozoic continuous aridification in the western Qaidam Basin: evidence from sporopollen records

Miao

Fang

et al. 2013

Clim. Past

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Cenozoic climate changes in inner Asia provide a basis for understanding linkages between global cooling, the Tibetan Plateau uplift, and possibly the development of the East Asian monsoon. Based on a compilation of palynological results from the western Qaidam Basin, this study reconstructed a 15-million-year (Ma) record of changing vegetation and paleoclimates spanning the middle Miocene to present (comprising two series: ~ 18–5 Ma and ~ 3.1–0 Ma, respectively). The thermophilic percentages were highest between 18 and 14 Ma, and decreased after 14 Ma, closely corresponding to the Middle Miocene Climatic Optimum (MMCO) between 18 and 14 Ma and the following global climatic cooling between 14 and 5 Ma. At the same time, decreases in the xerophytic and coniferous taxa percentages, and the increasing logarithmic ratio of non-arboreal pollen to arboreal pollen (ln (NAP/AP)), reveal the continuous aridification across both the basin and surrounding mountains. Between ~ 3.1 and 0 Ma, the percentages of the thermophilic, xerophytic and coniferous pollen as well as the ln (NAP/AP) imply further cooling and drying in this region since 3.1 Ma. We argue that these vegetation and climate patterns during the late Cenozoic western Qaidam Basin are primarily a result of the global cooling, with the Tibetan Plateau uplift and East Asian summer monsoon having contributions of lesser importance

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“…One approach is to estimate mean annual temperatures and rainfall patterns from preserved paleofloras (assuming uniformitarianism with modern floras), the isotopic or mineral composition of soils (e.g. Quade et al, 2011), or the clumped-isotopes in the carbonates of ancient lake sediments (e.g. Huntington et al, 2010), and use the tight correlations between temperature and elevation and precipitation and elevation to estimate paleoaltitude corrected for latitude, but these approaches require paleosols or lake sediments to be preserved from a variety of different elevations and ages; a rare occurrence in a highly volcanic zone like the Isthmus of Panama.…”

Section: Future Workmentioning

confidence: 99%

History of upwelling in the Tropical Eastern Pacific and the paleogeography of the Isthmus of Panama

O’Dea

Hoyos

Rodriguez

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

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The paleoaltimetry of Tibet: An isotopic perspective

Cited by 220 publications

References 51 publications

Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau

Stable isotopes of surface water across the Longmenshan margin of the eastern Tibetan Plateau

Late Cenozoic continuous aridification in the western Qaidam Basin: evidence from sporopollen records

History of upwelling in the Tropical Eastern Pacific and the paleogeography of the Isthmus of Panama

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