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Professor Jeremy Lloyd's Outputs (87)

Stable carbon isotopes and bulk-sediment geochemistry as indicators of relative sea-level change in tidal marshes, mangroves and isolation basins: Application and developments (2024)
Journal Article
Wilson, G. P., Lloyd, J. M., Khan, N. S., & Kemp, A. C. (2024). Stable carbon isotopes and bulk-sediment geochemistry as indicators of relative sea-level change in tidal marshes, mangroves and isolation basins: Application and developments. Quaternary Science Reviews, 340, Article 108855. https://doi.org/10.1016/j.quascirev.2024.108855

Bulk organic stable carbon isotope (δ13C) and accompanying bulk organic geochemical measurements have been increasingly used as a relative sea-level (RSL) indicator over the last two decades. Their utility as a RSL indicator is premised on the abilit... Read More about Stable carbon isotopes and bulk-sediment geochemistry as indicators of relative sea-level change in tidal marshes, mangroves and isolation basins: Application and developments.

The deglacial history of 79N glacier and the Northeast Greenland Ice Stream (2024)
Journal Article
Roberts, D. H., Lane, T. P., Jones, R. S., Bentley, M. J., Darvill, C. M., Rodes, A., Smith, J. A., Jamieson, S. S., Rea, B. R., Fabel, D., Gheorghiu, D., Davidson, A., Cofaigh, C. Ó., Lloyd, J. M., Callard, S. L., & Humbert, A. (2024). The deglacial history of 79N glacier and the Northeast Greenland Ice Stream. Quaternary Science Reviews, 336, Article 108770. https://doi.org/10.1016/j.quascirev.2024.108770

The Northeast Greenland Ice Stream (NEGIS) is the main artery for ice discharge from the northeast sector of the Greenland Ice Sheet (GrIS) to the North Atlantic. Understanding the past, present and future stability of the NEGIS with respect to atmos... Read More about The deglacial history of 79N glacier and the Northeast Greenland Ice Stream.

Palaeoenvironmental reconstruction of Loch Duart (NW Scotland, UK) since the Last Glacial Maximum: implications from a multiproxy approach (2023)
Journal Article
Taylor, J., Selby, D., Lloyd, J. M., Podrecca, L., Masterson, A. L., Sageman, B. B., & Szidat, S. (online). Palaeoenvironmental reconstruction of Loch Duart (NW Scotland, UK) since the Last Glacial Maximum: implications from a multiproxy approach. Journal of Quaternary Science, 39(1), 6-23. https://doi.org/10.1002/jqs.3566

A sediment core from the salt marsh fringing Loch Duart, NW Scotland, UK, containing Lateglacial to Holocene sediments, was analysed using a multi-element geochemical approach to elucidate the relative sea level (RSL) and palaeoenvironmental changes... Read More about Palaeoenvironmental reconstruction of Loch Duart (NW Scotland, UK) since the Last Glacial Maximum: implications from a multiproxy approach.

Distribution of modern benthic foraminiferal assemblages across the Northeast Greenland continental shelf (2023)
Journal Article
Davies, J., Lloyd, J., Pearce, C., & Seidenkrantz, M. (2023). Distribution of modern benthic foraminiferal assemblages across the Northeast Greenland continental shelf. Marine Micropaleontology, 184, Article 102273. https://doi.org/10.1016/j.marmicro.2023.102273

Analysis of benthic foraminifera in surface samples from 23 sites on the Northeast Greenland continental shelf reveal key assemblage differences between sites. Cluster analysis creates two clear geographical faunal assemblage zones: the 1) inner shel... Read More about Distribution of modern benthic foraminiferal assemblages across the Northeast Greenland continental shelf.

Stratigraphic evidence of relative sea level changes produced by megathrust earthquakes in the Jalisco subduction zone, Mexico. The signature of the 1995 Colima-Jalisco earthquake (Mw 8) as a modern analogue (2023)
Journal Article
Bustamante Fernandez, E., Woodroffe, S., Lloyd, J. M., & Shennan, I. (2023). Stratigraphic evidence of relative sea level changes produced by megathrust earthquakes in the Jalisco subduction zone, Mexico. The signature of the 1995 Colima-Jalisco earthquake (Mw 8) as a modern analogue. Marine Geology, 463, Article 107100. https://doi.org/10.1016/j.margeo.2023.107100

Geological evidence of megathrust earthquakes along the Mexican Pacific coast relies predominantly on tsunami deposits. Records of coseismic relative sea-level changes are scarce even though such evidence can complement and constrain tsunami records,... Read More about Stratigraphic evidence of relative sea level changes produced by megathrust earthquakes in the Jalisco subduction zone, Mexico. The signature of the 1995 Colima-Jalisco earthquake (Mw 8) as a modern analogue.

On the varied impact of the Storegga tsunami in northwest Scotland (2023)
Journal Article
Woodroffe, S. A., Hill, J., Bustamante‐Fernandez, E., Lloyd, J. M., Luff, J., Richards, S., & Shennan, I. (online). On the varied impact of the Storegga tsunami in northwest Scotland. Journal of Quaternary Science, 38(8), 1219-1232. https://doi.org/10.1002/jqs.3539

In this paper we evaluate new data and those from previous studies in northwest Scotland and perform a modelling study to test the hypothesis that the Storegga tsunami (submarine slope failure off the continental shelf of Central Norway dated to 8120... Read More about On the varied impact of the Storegga tsunami in northwest Scotland.

Direct measurement of warm Atlantic Intermediate Water close to the grounding line of Nioghalvfjerdsfjorden (79° N) Glacier, northeast Greenland (2023)
Journal Article
Bentley, M. J., Smith, J. A., Jamieson, S. S., Lindeman, M. R., Rea, B. R., Humbert, A., Lane, T. P., Darvill, C. M., Lloyd, J. M., Straneo, F., Helm, V., & Roberts, D. H. (2023). Direct measurement of warm Atlantic Intermediate Water close to the grounding line of Nioghalvfjerdsfjorden (79° N) Glacier, northeast Greenland. The Cryosphere, 17(5), 1821-1837. https://doi.org/10.5194/tc-17-1821-2023

The Northeast Greenland Ice Stream has recently seen significant change to its floating margins and has been identified as vulnerable to future climate warming. Inflow of warm Atlantic Intermediate Water (AIW) from the continental shelf has been obse... Read More about Direct measurement of warm Atlantic Intermediate Water close to the grounding line of Nioghalvfjerdsfjorden (79° N) Glacier, northeast Greenland.

Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model (2023)
Journal Article
Ownsworth, E., Selby, D., Lloyd, J., Knutz, P., Szidat, S., Andrews, J., & Ó Cofaigh, C. (2023). Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model. Quaternary Science Reviews, 308, Article 108082. https://doi.org/10.1016/j.quascirev.2023.108082

Reconstructing former ice sheet history and glaciogenic sediment fluxes surrounding Baffin Bay during and since the Last Glacial Maximum (LGM) is a major scientific challenge. Here, a new multi-proxy analysis of sediments from a central Baffin Bay (B... Read More about Tracking sediment delivery to central Baffin Bay during the past 40 kyrs: Insights from a multiproxy approach and new age model.

Ice-ocean interactions at the Northeast Greenland Ice stream (NEGIS) over the past 11,000 years (2023)
Journal Article
Lloyd, J., Ribeiro, S., Weckström, K., Callard, L., Ó Cofaigh, C., Leng, M., Gulliver, P., & Roberts, D. (2023). Ice-ocean interactions at the Northeast Greenland Ice stream (NEGIS) over the past 11,000 years. Quaternary Science Reviews, 308, Article 108068. https://doi.org/10.1016/j.quascirev.2023.108068

Recent observations have identified increased mass loss from Greenland marine-terminating outlet glaciers (MTOG) with implications for global sea-level rise and wider ocean circulation. The flow of Atlantic-sourced waters to the Greenland margin is t... Read More about Ice-ocean interactions at the Northeast Greenland Ice stream (NEGIS) over the past 11,000 years.

Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments (2023)
Journal Article
Smith, J. A., Callard, L., Bentley, M. J., Jamieson, S. S., Sánchez-Montes, M. L., Lane, T. P., Lloyd, J. M., McClymont, E. L., Darvill, C. M., Rea, B. R., O'Cofaigh, C., Gulliver, P., Ehrmann, W., Jones, R. S., & Roberts, D. H. (2023). Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments. The Cryosphere, 17(3), https://doi.org/10.5194/tc-17-1247-2023

Nioghalvfjerdsbrae, or 79◦ N Glacier, is the largest marine-terminating glacier draining the Northeast Greenland Ice Stream (NEGIS). In recent years, its ∼ 70 km long fringing ice shelf (hereafter referred to as the 79◦ N ice shelf) has thinned, and... Read More about Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments.

Plio-Pleistocene ocean circulation changes in the Gulf of Alaska and its impacts on the carbon and nitrogen cycles and the Cordilleran Ice Sheet development (2022)
Journal Article
Sánchez Montes, M., Romero, O., Cowan, E., Müller, J., Moy, C., Lloyd, J., & McClymont, E. (2022). Plio-Pleistocene ocean circulation changes in the Gulf of Alaska and its impacts on the carbon and nitrogen cycles and the Cordilleran Ice Sheet development. Paleoceanography and Paleoclimatology, 37(7), Article e2021PA004341. https://doi.org/10.1029/2021PA004341

The modern Gulf of Alaska (GOA) is a Cordilleran Ice Sheet (CIS) region, estimated to be important for nutrient cycling and CO2 exchange. Little is known of the GOA evolution over the Pliocene and Pleistocene as well as its impact on the CIS developm... Read More about Plio-Pleistocene ocean circulation changes in the Gulf of Alaska and its impacts on the carbon and nitrogen cycles and the Cordilleran Ice Sheet development.

Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum (2021)
Journal Article
Best, L., Simms, A., Brader, M., Lloyd, J., Sefton, J., & Shennan, I. (2022). Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum. Journal of Quaternary Science, 37(1), 59-70. https://doi.org/10.1002/jqs.3376

New relative sea-level (RSL) data constrain the timing and magnitude of RSL changes in the southern Isle of Skye following the Last Glacial Maximum (LGM). We identify a marine limit at ~23 m OD, indicating RSL ~20 m above present c. 15.1 ka. Isolatio... Read More about Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum.

Holocene interactions between glacier retreat, sea‐ice formation and Atlantic Water advection at the inner Northeast Greenland continental shelf (2020)
Journal Article
Syring, N., Lloyd, J. M., Stein, R., Fahl, K., Roberts, D. H., Callard, L., & O'Cofaigh, C. (2020). Holocene interactions between glacier retreat, sea‐ice formation and Atlantic Water advection at the inner Northeast Greenland continental shelf. Paleoceanography and Paleoclimatology, 35(11), Article e2020PA004019. https://doi.org/10.1029/2020pa004019

During the past four decades significant decrease in Arctic sea ice and a dramatic ice mass loss of the Greenland Ice Sheet (GIS) has been coincident with global warming and an increase in atmospheric CO2. In Northeast Greenland significant mass loss... Read More about Holocene interactions between glacier retreat, sea‐ice formation and Atlantic Water advection at the inner Northeast Greenland continental shelf.

Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures (2020)
Journal Article
Sánchez-Montes, M., McClymont, E., Lloyd, J., Müller, J., Cowan, E., Zorzi, C., & de Vernal, A. (2020). Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures. Climate of the Past, 16(1), 299-313. https://doi.org/10.5194/cp-16-299-2020

The initiation and evolution of the Cordilleran Ice Sheet are relatively poorly constrained. International Ocean Discovery Program (IODP) Expedition 341 recovered marine sediments at Site U1417 in the Gulf of Alaska (GOA). Here we present alkenone-de... Read More about Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures.

Early deglaciation of the British-Irish Ice Sheet on the Atlantic shelf northwest of Ireland driven by glacioisostatic depression and high relative sea level (2019)
Journal Article
Ó Cofaigh, C., Weilbach, K., Lloyd, J., Benetti, S., Callard, S., Purcell, R., Chiverrell, R., Dunlop, P., Saher, M., Livingstone, S., Van Landeghem, K., Moreton, S., Clark, C., & Fabel, D. (2019). Early deglaciation of the British-Irish Ice Sheet on the Atlantic shelf northwest of Ireland driven by glacioisostatic depression and high relative sea level. Quaternary Science Reviews, 208, 76-96. https://doi.org/10.1016/j.quascirev.2018.12.022

Understanding the triggers and pace of marine-based ice sheet decay is critical for constraining the future mass loss and dynamic behaviour of marine-based sectors of the large polar ice sheets in Greenland and Antarctica. Numerical models which seek... Read More about Early deglaciation of the British-Irish Ice Sheet on the Atlantic shelf northwest of Ireland driven by glacioisostatic depression and high relative sea level.

Tracing the impact of coastal water geochemistry on the Re-Os systematics of macroalgae: Insights from the basaltic terrain of Iceland (2018)
Journal Article
Sproson, A. D., Selby, D., Gannoun, A., Burton, K. W., Dellinger, M., & Lloyd, J. M. (2018). Tracing the impact of coastal water geochemistry on the Re-Os systematics of macroalgae: Insights from the basaltic terrain of Iceland. Journal of Geophysical Research: Biogeosciences, 123(9), 2791-2806. https://doi.org/10.1029/2018jg004492

This study presents rhenium (Re) and osmium (Os) elemental and isotope data for macroalgae, dissolved load and bed load from Icelandic coastal and/or river waters, an environment adjacent to predominantly basaltic terrains, ranging in age from histor... Read More about Tracing the impact of coastal water geochemistry on the Re-Os systematics of macroalgae: Insights from the basaltic terrain of Iceland.

Lack of evidence for a substantial sea-level fluctuation within the Last Interglacial (2018)
Journal Article
Barlow, N., McClymont, E., Whitehouse, P., Stokes, C., Jamieson, S., Woodroffe, S., …Sanchez-Montes, M. (2018). Lack of evidence for a substantial sea-level fluctuation within the Last Interglacial. Nature Geoscience, 11, 627-634. https://doi.org/10.1038/s41561-018-0195-4

During the Last Interglacial, global mean sea level reached approximately 6 to 9 m above the present level. This period of high sea level may have been punctuated by a fall of more than 4 m, but a cause for such a widespread sea-level fall has been e... Read More about Lack of evidence for a substantial sea-level fluctuation within the Last Interglacial.

The role of rapid glacial retreat and landscape transformation in controlling the post-Little Ice Age evolution of paraglacial coasts in central Spitsbergen (Billefjorden, Svalbard) (2018)
Journal Article
Strzelecki, M., Long, A., Lloyd, J., Małecki, J., Zagórski, P., Pawłowski, Ł., & Jaskólski, M. (2018). The role of rapid glacial retreat and landscape transformation in controlling the post-Little Ice Age evolution of paraglacial coasts in central Spitsbergen (Billefjorden, Svalbard). Land Degradation and Development, 29(6), 1962-1978. https://doi.org/10.1002/ldr.2923

In Svalbard, the rapid glacier retreat observed since the end of the Little Ice Age (LIA) has transformed the geomorphology and sediment budgets of glacial forelands, river valleys, and slope systems. To date, relatively little information exists reg... Read More about The role of rapid glacial retreat and landscape transformation in controlling the post-Little Ice Age evolution of paraglacial coasts in central Spitsbergen (Billefjorden, Svalbard).

Palaeoenvironmental reconstruction of the alluvial landscape of Neolithic Çatalhöyük, central southern Turkey: The implications for early agriculture and responses to environmental change (2017)
Journal Article
Ayala, G., Wainwright, J., Walker, J., Hodara, R., Lloyd, J., Leng, M., & Doherty, C. (2017). Palaeoenvironmental reconstruction of the alluvial landscape of Neolithic Çatalhöyük, central southern Turkey: The implications for early agriculture and responses to environmental change. Journal of Archaeological Science, 87, 30-43. https://doi.org/10.1016/j.jas.2017.09.002

Archaeological discussions of early agriculture have often used the Neolithic village of Çatalhöyük in central southern Turkey as a key example of the restricting effect of environment on agricultural production and organization. Central to these dis... Read More about Palaeoenvironmental reconstruction of the alluvial landscape of Neolithic Çatalhöyük, central southern Turkey: The implications for early agriculture and responses to environmental change.