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All Outputs (127)

A century of anthropogenic environmental change in tropical Asia: Multi-proxy palaeolimnological evidence from Singapore’s Central Catchment (2019)
Journal Article
Fong, L. S., Leng, M. J., & Taylor, D. (2019). A century of anthropogenic environmental change in tropical Asia: Multi-proxy palaeolimnological evidence from Singapore’s Central Catchment. Holocene, https://doi.org/10.1177/0959683619875808

The environmental ramifications of rapid development on the functioning of warm tropical freshwater ecosystems are poorly understood. Here, a multi-proxy palaeolimnological approach is used to examine the nature and degree of anthropogenic environmen... Read More about A century of anthropogenic environmental change in tropical Asia: Multi-proxy palaeolimnological evidence from Singapore’s Central Catchment.

Stable isotopes reveal independent carbon pools across an Arctic hydro-climatic gradient: Implications for the fate of carbon in warmer and drier conditions (2019)
Journal Article
Osburn, C. L., Anderson, N. J., Leng, M. J., Barry, C. D., & Whiteford, E. J. (2019). Stable isotopes reveal independent carbon pools across an Arctic hydro-climatic gradient: Implications for the fate of carbon in warmer and drier conditions. Limnology and Oceanography Letters, 4(6), 205-213. https://doi.org/10.1002/lol2.10119

Arctic lakes are poised for substantial changes to their carbon (C) cycles in the near future. Autochthonous processes in lakes which consume inorganic C and create biomass that can be sequestered in sediments are accompanied by allochthonous inputs... Read More about Stable isotopes reveal independent carbon pools across an Arctic hydro-climatic gradient: Implications for the fate of carbon in warmer and drier conditions.

Mediterranean winter rainfall in phase with African monsoons during the past 1.36 million years (2019)
Journal Article
Wagner, B., Vogel, H., Francke, A., Friedrich, T., Donders, T., Lacey, J. H., …Zhang, X. (2019). Mediterranean winter rainfall in phase with African monsoons during the past 1.36 million years. Nature, 573, 256-260. https://doi.org/10.1038/s41586-019-1529-0

Mediterranean climates are characterized by strong seasonal contrasts between dry summers and wet winters. Changes in winter rainfall are critical for regional socioeconomic development, but are difficult to simulate accurately1 and reconstruct on Qu... Read More about Mediterranean winter rainfall in phase with African monsoons during the past 1.36 million years.

Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study (2019)
Journal Article
Mikis, A., Hendry, K. R., Pike, J., Schmidt, D. N., Edgar, K. M., Peck, V., …Ducklow, H. (2019). Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study. Biogeosciences, 16, 3267-3282. https://doi.org/10.5194/bg-16-3267-2019

The West Antarctic Peninsula (WAP) exhibits strong spatial and temporal oceanographic variability, resulting in highly heterogeneous biological productivity. Calcifying organisms that live in the waters off the WAP respond to temporal and spatial var... Read More about Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study.

Dynamic climate-driven controls on the deposition of the Kimmeridge Clay Formation in the Cleveland Basin, Yorkshire, UK (2019)
Journal Article
Atar, E., März, C., Aplin, A. C., Dellwig, O., Herringshaw, L. G., Lamoureux-Var, V., …Wagner, T. (2019). Dynamic climate-driven controls on the deposition of the Kimmeridge Clay Formation in the Cleveland Basin, Yorkshire, UK. Climate of the Past, 15(4), 1581-1601. https://doi.org/10.5194/cp-15-1581-2019

The Kimmeridge Clay Formation (KCF) is a laterally extensive, total-organic-carbon-rich succession deposited throughout northwest Europe during the Kimmeridgian–Tithonian (Late Jurassic). It has recently been postulated that an expanded Hadley cell,... Read More about Dynamic climate-driven controls on the deposition of the Kimmeridge Clay Formation in the Cleveland Basin, Yorkshire, UK.

Stable isotopes in biological and chemical fossils from lake sediments: Developing and calibrating palaeoenvironmental proxies (2019)
Journal Article
van Hardenbroek, M., Heiri, O., & Leng, M. (2019). Stable isotopes in biological and chemical fossils from lake sediments: Developing and calibrating palaeoenvironmental proxies. Quaternary Science Reviews, 218, 157-159. https://doi.org/10.1016/j.quascirev.2019.06.021

Stable isotope records of H, C, N, O, and Si derived from lake sediments provide valuable information about changing environmental conditions, with diverse applications in Quaternary research. A key issue with the interpretation of stable isotope dat... Read More about Stable isotopes in biological and chemical fossils from lake sediments: Developing and calibrating palaeoenvironmental proxies.

A method for reconstructing temporal changes in vegetation functional trait composition using Holocene pollen assemblages (2019)
Journal Article
Carvalho, F., Brown, K. A., Waller, M. P., Bunting, M. J., Boom, A., & Leng, M. J. (2019). A method for reconstructing temporal changes in vegetation functional trait composition using Holocene pollen assemblages. PLoS ONE, 14(5), Article e0216698. https://doi.org/10.1371/journal.pone.0216698

Methods of reconstructing changes in plant traits over long time scales are needed to understand the impact of changing environmental conditions on ecosystem processes and services. Although Holocene pollen have been extensively used to provide recor... Read More about A method for reconstructing temporal changes in vegetation functional trait composition using Holocene pollen assemblages.

Spatial variability of 2H and 18O composition of meteoric freshwater lakes in Scotland (2019)
Journal Article
Hoogewerff, J., Kemp, H. F., Leng, M. J., & Meier-Augenstein, W. (2019). Spatial variability of 2H and 18O composition of meteoric freshwater lakes in Scotland. Isotopes in Environmental and Health Studies, 55(3), 1-17. https://doi.org/10.1080/10256016.2019.1609958

Coastal regions, and in particular islands where precipitation from clouds formed out at sea occurs for the first time, are prime candidates for regions where 2H and 18O composition of precipitation will deviate significantly from the global mean geo... Read More about Spatial variability of 2H and 18O composition of meteoric freshwater lakes in Scotland.

Controls on amorphous organic matter type and sulphurization in a Mississippian black shale (2019)
Journal Article
Emmings, J. F., Hennissen, J. A., Stephenson, M. H., Poulton, S. W., Vane, C. H., Davies, S. J., …Moss-Hayes, V. (2019). Controls on amorphous organic matter type and sulphurization in a Mississippian black shale. Review of Palaeobotany and Palynology, 268, 1-18. https://doi.org/10.1016/j.revpalbo.2019.04.004

Paleoredox proxies (Fe speciation, trace element and δ34Spy) integrated with sedimentological and palynological observations link the distribution and type of particulate organic matter (OM) preserved to hydrocarbon source rock potential. In the Miss... Read More about Controls on amorphous organic matter type and sulphurization in a Mississippian black shale.

Sediment residence time reveals Holocene shift from climatic to vegetation control on catchment erosion in the Balkans (2019)
Journal Article
Francke, A., Dosseto, A., Panagiotopoulos, K., Leicher, N., Lacey, J. H., Kyrikou, S., …Leng, M. J. (2019). Sediment residence time reveals Holocene shift from climatic to vegetation control on catchment erosion in the Balkans. Global and Planetary Change, 177, 186-200. https://doi.org/10.1016/j.gloplacha.2019.04.005

Understanding the evolution of soil systems on geological time scales has become fundamentally important to predict future landscape development in light of rapid global warming and intensifying anthropogenic impact. Here, we use an innovative uraniu... Read More about Sediment residence time reveals Holocene shift from climatic to vegetation control on catchment erosion in the Balkans.

A High‐Fidelity Benthic Stable Isotope Record of Late Cretaceous–Early Eocene Climate Change and Carbon‐Cycling (2019)
Journal Article
Barnet, J., Littler, K., Westerhold, T., Kroon, D., Leng, M., Bailey, I., …Zachos, J. (2019). A High‐Fidelity Benthic Stable Isotope Record of Late Cretaceous–Early Eocene Climate Change and Carbon‐Cycling. Paleoceanography and Paleoclimatology, 34(4), 672-691. https://doi.org/10.1029/2019pa003556

The Late Cretaceous–Early Paleogene is the most recent period in Earth history that experienced sustained global greenhouse warmth on multimillion year timescales. Yet, knowledge of ambient climate conditions and the complex interplay between various... Read More about A High‐Fidelity Benthic Stable Isotope Record of Late Cretaceous–Early Eocene Climate Change and Carbon‐Cycling.

Role of Asian summer monsoon subsystems in the inter-hemispheric progression of deglaciation (2019)
Journal Article
Nilsson-Kerr, K., Anand, P., Sexton, P. F., Leng, M. J., Misra, S., Clemens, S. C., & Hammond, S. J. (2019). Role of Asian summer monsoon subsystems in the inter-hemispheric progression of deglaciation. Nature Geoscience, 12(4), 290-295. https://doi.org/10.1038/s41561-019-0319-5

The responses of Asian monsoon subsystems to both hemispheric climate forcing and external orbital forcing are currently issues of vigorous debate. The Indian summer monsoon is the dominant monsoon subsystem in terms of energy flux, constituting one... Read More about Role of Asian summer monsoon subsystems in the inter-hemispheric progression of deglaciation.

Holocene El Niño–Southern Oscillation variability reflected in subtropical Australian precipitation (2019)
Journal Article
Barr, C., Tibby, J., Leng, M., Tyler, J., Henderson, A., Overpeck, J., …McRobie, F. (2019). Holocene El Niño–Southern Oscillation variability reflected in subtropical Australian precipitation. Scientific Reports, 9, Article 1627. https://doi.org/10.1038/s41598-019-38626-3

The La Niña and El Niño phases of the El Niño-Southern Oscillation (ENSO) have major impacts on regional rainfall patterns around the globe, with substantial environmental, societal and economic implications. Long-term perspectives on ENSO behaviour,... Read More about Holocene El Niño–Southern Oscillation variability reflected in subtropical Australian precipitation.

Seasonal scheduling of shellfish collection in the Middle and Later Stone Ages of southern Africa (2019)
Journal Article
Loftus, E., Lee-Thorp, J., Leng, M., Marean, C., & Sealy, J. (2019). Seasonal scheduling of shellfish collection in the Middle and Later Stone Ages of southern Africa. Journal of Human Evolution, 128, 1-16. https://doi.org/10.1016/j.jhevol.2018.12.009

This study assesses the seasonal scheduling of shellfish harvesting among hunter-gatherer populations along the southernmost coast of South Africa, based on a large number of serial oxygen isotope analyses of marine mollusk shells from four archaeolo... Read More about Seasonal scheduling of shellfish collection in the Middle and Later Stone Ages of southern Africa.

An experimental evaluation of the use of Δ13C as a proxy for palaeoatmospheric CO2 (2018)
Journal Article
Lomax, B. H., Lake, J. A., Leng, M. J., & Jardine, P. E. (2019). An experimental evaluation of the use of Δ13C as a proxy for palaeoatmospheric CO2. Geochimica et Cosmochimica Acta, 247, 162-174. https://doi.org/10.1016/j.gca.2018.12.026

Understanding changes in atmospheric CO2 over geological time via the development of well constrained and tested proxies is of increasing importance within the Earth sciences. Recently a new proxy (identified as the C3 proxy) has been proposed that i... Read More about An experimental evaluation of the use of Δ13C as a proxy for palaeoatmospheric CO2.

Closure of the Bering Strait caused Mid-Pleistocene Transition cooling (2018)
Journal Article
Kender, S., Ravelo, A. C., Worne, S., Swann, G. E. A., Leng, M. J., Asahi, H., …Hall, I. R. (2018). Closure of the Bering Strait caused Mid-Pleistocene Transition cooling. Nature Communications, 9(1), Article 5386. https://doi.org/10.1038/s41467-018-07828-0

The Mid-Pleistocene Transition (MPT) is characterised by cooling and lengthening glacial cycles from 600–1200 ka, thought to be driven by reductions in glacial CO2 in particular from ~900 ka onwards. Reduced high latitude upwelling, a process that re... Read More about Closure of the Bering Strait caused Mid-Pleistocene Transition cooling.

Red Sea Palaeoclimate: Stable Isotope and Element-Ratio Analysis of Marine Mollusc Shells (2018)
Book Chapter
Hausmann, N., Kokkinaki, O., & Leng, M. J. (2019). Red Sea Palaeoclimate: Stable Isotope and Element-Ratio Analysis of Marine Mollusc Shells. In N. M. Rasullan, & C. F. Stewart (Eds.), Geological Setting, Palaeoenvironment and Archaeology of the Red Sea (725-740). Springer. https://doi.org/10.1007/978-3-319-99408-6_33

The southern Red Sea coast is the location of more than 4,200 archaeological shell midden sites. These shell middens preserve archaeological and climatic archives of unprecedented resolution and scale. By using shells from these contexts, it is possi... Read More about Red Sea Palaeoclimate: Stable Isotope and Element-Ratio Analysis of Marine Mollusc Shells.

A 6,000-year record of environmental change from the eastern Pacific margin of central Mexico (2018)
Journal Article
Davies, S. J., Metcalfe, S. E., Aston, B. J., Byrne, A. R., Champagne, M. R., Jones, M. D., …Noren, A. (2018). A 6,000-year record of environmental change from the eastern Pacific margin of central Mexico. Quaternary Science Reviews, 202, 211-224. https://doi.org/10.1016/j.quascirev.2018.11.008

The transition from the mid- to late-Holocene in MesoAmerica saw increasing complexity in spatial patterns of change. Records from the western part of the region are sparse, with lacustrine sequences affected by long term anthropogenic disturbance or... Read More about A 6,000-year record of environmental change from the eastern Pacific margin of central Mexico.

Essential tips for a rock-solid PhD: part III (2018)
Journal Article
Leng, M., & Mackay, A. (2018). Essential tips for a rock-solid PhD: part III. Geoscientist, 28(10), 28-29. https://doi.org/10.1144/geosci2018-025

We’ve previously explained how important it is to carefully choose your PhD project and supervisor, to manage your time and relationships, and given more detailed advice on the practical side of doing a PhD. To finish, we’ll cover social media, CVs a... Read More about Essential tips for a rock-solid PhD: part III.