All Outputs (141)

A late Quaternary record of seasonal sea surface temperatures off southern Africa (2017)
Journal Article
Loftus, E., Sealy, J., Leng, M. J., & Lee-Thorp, J. (2017). A late Quaternary record of seasonal sea surface temperatures off southern Africa. Quaternary Science Reviews, 171, https://doi.org/10.1016/j.quascirev.2017.07.003

The southern Cape coastal region is important for understanding both the behavioural history of modern humans, and regional and global climate dynamics, because it boasts a long archaeological record and occupies a key geographical location near the... Read More about A late Quaternary record of seasonal sea surface temperatures off southern Africa.

Timing recovery after the cretaceous/paleogene boundary: evidence from Brazos River, Texas (2017)
Journal Article
Leighton, A. D., Hart, M. B., Smart, C. W., Leng, M. J., & Hampton, M. (2017). Timing recovery after the cretaceous/paleogene boundary: evidence from Brazos River, Texas. Journal of Foraminiferal Research, 47(3), https://doi.org/10.2113/gsjfr.47.3.229

As part of an on-going re-assessment of the Cretaceous/ Paleogene boundary in the Brazos River area, Falls County, Texas, a number of new exposures have been described. One of these, at River Bank South, provides a near continuous record of the lower... Read More about Timing recovery after the cretaceous/paleogene boundary: evidence from Brazos River, Texas.

The prospectivity of a potential shale gas play: An example from the southern Pennine Basin (central England, UK) (2017)
Journal Article
Hennissen, J. A., Hough, E., Vane, C. H., Leng, M. J., Kemp, S. J., & Stephenson, M. H. (in press). The prospectivity of a potential shale gas play: An example from the southern Pennine Basin (central England, UK). Marine and Petroleum Geology, https://doi.org/10.1016/j.marpetgeo.2017.06.033

During the Serpukhovian (late Mississippian) Stage, the Pennine Basin, now underlying much of northern England, consisted of a series of interlinked sub-basins that developed in response to the crustal extension north of the Hercynic orogenic zone. F... Read More about The prospectivity of a potential shale gas play: An example from the southern Pennine Basin (central England, UK).

Temporal controls on silicic acid utilisation along the West Antarctic Peninsula (2017)
Journal Article
Swann, G. E., Pike, J., Leng, M. J., Sloane, H. J., & Snelling, A. M. (2017). Temporal controls on silicic acid utilisation along the West Antarctic Peninsula. Nature Communications, 14645, https://doi.org/10.1038/ncomms14645

The impact of climatic change along the Antarctica Peninsula has been widely debated in light of atmospheric/oceanic warming and increases in glacial melt over the past half century. Particular concern exists over the impact of these changes on marin... Read More about Temporal controls on silicic acid utilisation along the West Antarctic Peninsula.

C/N ratios and carbon isotope composition of organic matter in estuarine environments (2017)
Book Chapter
Leng, M. J., & Lewis, J. P. (2017). C/N ratios and carbon isotope composition of organic matter in estuarine environments. In K. Weckström, K. Saunders, P. Gell, & G. Skilbeck (Eds.), Applications of Paleoenvironmental Techniques in Estuarine Studies. Springer Netherlands. https://doi.org/10.1007/978-94-024-0990-1_9

The sediments that are preserved in estuarine environments (saltmarsh, riverine estuaries, mangrove habitats, lagoons, isolation basins and fjords) contain organic matter that allows investigation of the provenance of that material. These data can th... Read More about C/N ratios and carbon isotope composition of organic matter in estuarine environments.

Holocene carbon dynamics at the forest – steppe ecotone of southern Siberia (2016)
Journal Article
Mackay, A. W., Seddon, A., Leng, M. J., Heumann, G., Morley, D., Piotrowska, N., …Swann, G. E. (2017). Holocene carbon dynamics at the forest – steppe ecotone of southern Siberia. Global Change Biology, 23(5), https://doi.org/10.1111/gcb.13583

The forest–steppe ecotone in southern Siberia is highly sensitive to climate change; global warming is expected to push the ecotone northwards, at the same time resulting in degradation of the underlying permafrost. To gain a deeper understanding of... Read More about Holocene carbon dynamics at the forest – steppe ecotone of southern Siberia.

Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations (2016)
Journal Article
Ruhl, M., Hesselbo, S. P., Hinnov, L., Jenkyns, H. C., Xu, W., Riding, J. B., …Leng, M. J. (2016). Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations. Earth and Planetary Science Letters, 455, https://doi.org/10.1016/j.epsl.2016.08.038

The Early Jurassic was marked by multiple periods of major global climatic and palaeoceanographic change, biotic turnover and perturbed global geochemical cycles, commonly linked to large igneous province volcanism. This epoch was also characterised... Read More about Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations.

Osmium isotope evidence for two pulses of increased continental weathering linked to Early Jurassic volcanism and climate change (2016)
Journal Article
Percival, L. M., Cohen, A., Davies, M., Hesselbo, S. P., Jenkyns, H., Leng, M. J., …Xu, W. (2016). Osmium isotope evidence for two pulses of increased continental weathering linked to Early Jurassic volcanism and climate change. Geology, 44(9), 759-762. https://doi.org/10.1130/G37997.1

Large igneous provinces (LIPs) are proposed to have caused a number of episodes of abrupt environmental change by increasing atmospheric CO2 levels, which were subsequently alleviated by drawdown of CO2 via enhanced continental weathering and burial... Read More about Osmium isotope evidence for two pulses of increased continental weathering linked to Early Jurassic volcanism and climate change.

Mid Pleistocene foraminiferal mass extinction coupled with phytoplankton evolution (2016)
Journal Article
Kender, S., McClymont, E. L., Elmore, A. C., Emanuele, D., Leng, M. J., & Elderfield, H. (2016). Mid Pleistocene foraminiferal mass extinction coupled with phytoplankton evolution. Nature Communications, 7(1), Article 11970. https://doi.org/10.1038/ncomms11970

Understanding the interaction between climate and biotic evolution is crucial for deciphering the sensitivity of life. An enigmatic mass extinction occurred in the deep oceans during the Mid Pleistocene, with a loss of over 100 species (20%) of sea f... Read More about Mid Pleistocene foraminiferal mass extinction coupled with phytoplankton evolution.

Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the Southwest Pacific (2016)
Journal Article
McClymont, E. L., Elmore, A. C., Kender, S., Leng, M. J., Greaves, M., & Elderfield, H. (in press). Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the Southwest Pacific. Paleoceanography, 31(6), https://doi.org/10.1002/2016PA002954

Over the last 5 million years, the global climate system has evolved toward a colder mean state, marked by large amplitude oscillations in continental ice volume. Equatorward expansion of polar waters and strengthening temperature gradients have been... Read More about Pliocene-Pleistocene evolution of sea surface and intermediate water temperatures from the Southwest Pacific.

Scientific drilling projects in ancient lakes: integrating geological and biological histories (2016)
Journal Article
Wilke, T., Wagner, B., Van Bocxlaer, B., Albrecht, C., Ariztegui, D., Delicado, D., …Wonik, T. (in press). Scientific drilling projects in ancient lakes: integrating geological and biological histories. Global and Planetary Change, 143, https://doi.org/10.1016/j.gloplacha.2016.05.005

Sedimentary sequences in ancient or long-lived lakes can reach several thousands of meters in thickness and often provide an unrivalled perspective of the lake's regional climatic, environmental, and biological history. Over the last few years, deep... Read More about Scientific drilling projects in ancient lakes: integrating geological and biological histories.

Low-latitude Holocene hydroclimate derived from lake sediment flux and geochemistry (2016)
Journal Article
Parker, A. G., Preston, G. W., Parton, A., Walkington, H., Jardine, P. E., Leng, M. J., & Hodson, M. J. (2016). Low-latitude Holocene hydroclimate derived from lake sediment flux and geochemistry. Journal of Quaternary Science, 31(4), 286-299. https://doi.org/10.1002/jqs.2859

This study investigates hydrological responses to climatic shifts using sediment flux data derived from two dated palaeolake records in south-east Arabia. Flux values are generally low during the early Holocene humid period (EHHP) (∼9.0–6.4k cal a BP... Read More about Low-latitude Holocene hydroclimate derived from lake sediment flux and geochemistry.

A tale of two lakes: a multi-proxy comparison of Lateglacial and Holocene environmental change in Cappadocia, Turkey (2016)
Journal Article
Roberts, N., Allcock, S. L., Arnaud, F., Dean, J. R., Eastwood, W. J., Jones, M. D., …Yiğitbaşıoğlu, H. (2016). A tale of two lakes: a multi-proxy comparison of Lateglacial and Holocene environmental change in Cappadocia, Turkey. Journal of Quaternary Science, 31(4), https://doi.org/10.1002/jqs.2852

Individual palaeoenvironmental records represent a combination of regional-scale (e.g. climatic) and site-specific local factors. Here we compare multiple climate proxies from two nearby maar lake records, assuming that common signals are due to regi... Read More about A tale of two lakes: a multi-proxy comparison of Lateglacial and Holocene environmental change in Cappadocia, Turkey.

Interpretation and application of carbon isotope ratios in freshwater diatom silica (2016)
Journal Article
Webb, M., Barker, P. A., Wynn, P. M., Heiri, O., van Hardenbroek, M., Pick, F., …Leng, M. J. (2016). Interpretation and application of carbon isotope ratios in freshwater diatom silica. Journal of Quaternary Science, 31(4), https://doi.org/10.1002/jqs.2837

Carbon incorporated into diatom frustule walls is protected from degradation enabling analysis for carbon isotope composition (?13Cdiatom). This presents potential for tracing carbon cycles via a single photosynthetic host with well-constrained ecoph... Read More about Interpretation and application of carbon isotope ratios in freshwater diatom silica.

North Atlantic forcing of moisture delivery to Europe throughout the Holocene (2016)
Journal Article
Smith, A. C., Wynn, P. M., Barker, P. A., Leng, M. J., Noble, S. R., & Tych, W. (2016). North Atlantic forcing of moisture delivery to Europe throughout the Holocene. Scientific Reports, 6, https://doi.org/10.1038/srep24745

Century-to-millennial scale fluctuations in precipitation and temperature are an established feature of European Holocene climates. Changes in moisture delivery are driven by complex interactions between ocean moisture sources and atmospheric circula... Read More about North Atlantic forcing of moisture delivery to Europe throughout the Holocene.

Carbon isotope discrimination in leaves of the common paperbark tree, Melaleuca quinquenervia, as a tool for quantifying past tropical and subtropical rainfall (2016)
Journal Article
Tibby, J., Barr, C., McInerney, F. A., Henderson, A. C., Leng, M. J., Greenway, M., …McNeil, V. (in press). Carbon isotope discrimination in leaves of the common paperbark tree, Melaleuca quinquenervia, as a tool for quantifying past tropical and subtropical rainfall. Global Change Biology, https://doi.org/10.1111/gcb.13277

Quantitative reconstructions of terrestrial climate are highly sought after but rare, particularly in Australia. Carbon isotope discrimination in plant leaves (?leaf) is an established indicator of past hydroclimate because the fractionation of carbo... Read More about Carbon isotope discrimination in leaves of the common paperbark tree, Melaleuca quinquenervia, as a tool for quantifying past tropical and subtropical rainfall.

Northern Mediterranean climate since the Middle Pleistocene: a 637 ka stable isotope record from Lake Ohrid (Albania/Macedonia) (2016)
Journal Article
Lacey, J. H., Leng, M. J., Francke, A., Sloane, H. J., Milodowski, A., Vogel, H., …Wagner, B. (2016). Northern Mediterranean climate since the Middle Pleistocene: a 637 ka stable isotope record from Lake Ohrid (Albania/Macedonia). Biogeosciences, 13, https://doi.org/10.5194/bg-13-1801-2016

Lake Ohrid (Macedonia/Albania) is an ancient lake with unique biodiversity and a site of global significance for investigating the influence of climate, geological, and tectonic events on the generation of endemic populations. Here, we present oxygen... Read More about Northern Mediterranean climate since the Middle Pleistocene: a 637 ka stable isotope record from Lake Ohrid (Albania/Macedonia).

Spatial patterns in the oxygen isotope composition of daily rainfall in the British Isles (2015)
Journal Article
Tyler, J. J., Jones, M. D., Arrowsmith, C., Allott, T., & Leng, M. J. (2016). Spatial patterns in the oxygen isotope composition of daily rainfall in the British Isles. Climate Dynamics, 47(5-6), 1971–1987. https://doi.org/10.1007/s00382-015-2945-y

Understanding the modern day relationship between climate and the oxygen isotopic composition of precipitation (δ18OP) is crucial for obtaining rigorous palaeoclimate reconstructions from a variety of archives. To date, the majority of empirical stud... Read More about Spatial patterns in the oxygen isotope composition of daily rainfall in the British Isles.

Comparisons of observed and modelled lake ?18O variability (2015)
Journal Article
Jones, M. D., Cuthbert, M., Leng, M. J., McGowan, S., Mariethoz, G., Arrowsmith, C., …Cross, I. (2016). Comparisons of observed and modelled lake δ18O variability. Quaternary Science Reviews, 131(B), 329-340. https://doi.org/10.1016/j.quascirev.2015.09.012

With the substantial number of lake sediment ?18O records published in recent decades, a quantitative, process-based understanding of these systems can increase our understanding of past climate change. We test mass balance models of lake water ?18O... Read More about Comparisons of observed and modelled lake ?18O variability.

Eastern Mediterranean hydroclimate over the late glacial and Holocene, reconstructed from the sediments of Nar lake, central Turkey, using stable isotopes and carbonate mineralogy (2015)
Journal Article
Dean, J. R., Jones, M. D., Leng, M. J., Noble, S. R., Metcalfe, S. E., Sloane, H. J., …Roberts, C. N. (2015). Eastern Mediterranean hydroclimate over the late glacial and Holocene, reconstructed from the sediments of Nar lake, central Turkey, using stable isotopes and carbonate mineralogy. Quaternary Science Reviews, 124, 162-174. https://doi.org/10.1016/j.quascirev.2015.07.023

There is a lack of high-resolution records of hydroclimate variability in the Eastern Mediterranean from the late glacial and early Holocene. More knowledge of the speed of climate shifts and the degree to which they were synchronous with changes in... Read More about Eastern Mediterranean hydroclimate over the late glacial and Holocene, reconstructed from the sediments of Nar lake, central Turkey, using stable isotopes and carbonate mineralogy.