All Outputs (142)

Reduced upwelling of nutrient and carbon-rich water in the subarctic Pacific during the Mid-Pleistocene Transition (2020)
Journal Article

© 2020 Reduction in atmospheric pCO2 has been hypothesised as a causal mechanism for the Mid-Pleistocene Transition (MPT), which saw global cooling and increased duration of glacials between 0.6 and 1.2 Ma. Sea ice-modulated high latitude upwelling a... Read More about Reduced upwelling of nutrient and carbon-rich water in the subarctic Pacific during the Mid-Pleistocene Transition.

Diatoms in a sediment core from a flood pulse wetland in Malaysia record strong responses to human impacts and hydro‐climate over the past 150 years (2020)
Journal Article

Rapid development and climate change in southeast Asia is placing unprecedented pressures on freshwater ecosystems, but long term records of the ecological consequences are rare. Here we examine one basin of Tasik Chini (Malaysia), a UNESCO?designate... Read More about Diatoms in a sediment core from a flood pulse wetland in Malaysia record strong responses to human impacts and hydro‐climate over the past 150 years.

Orbital pacing and secular evolution of the Early Jurassic carbon cycle (2020)
Journal Article

Global perturbations to the Early Jurassic environment (∼201 to ∼174 Ma), notably during the Triassic–Jurassic transition and Toarcian Oceanic Anoxic Event, are well studied and largely associated with volcanogenic greenhouse gas emissions released b... Read More about Orbital pacing and secular evolution of the Early Jurassic carbon cycle.

Human occupation and ecosystem change on Upolu (Samoa) during the Holocene (2020)
Journal Article

Aim: To track the peopling of the South Pacific and assess their impact on terrestrial and aquatic ecosystems. Location: Upolu, Samoa. Taxon: Terrestrial and aquatic plants. Methods: A sedimentary record covering the last c. 10,500years was recovered... Read More about Human occupation and ecosystem change on Upolu (Samoa) during the Holocene.

Insights into the evolution of the young Lake Ohrid ecosystem and vegetation succession from a southern European refugium during the Early Pleistocene (2019)
Journal Article

© 2019 Mediterranean mid-altitude sites are critical for the survival of plant species allowing for elevational vegetation shifts in response to high-amplitude climate variability. Pollen records from the southern Balkans have underlined the importan... Read More about Insights into the evolution of the young Lake Ohrid ecosystem and vegetation succession from a southern European refugium during the Early Pleistocene.

δ18O-inferred salinity from Littorina littorea (L.) gastropods in a Danish shell midden at the Mesolithic–Neolithic transition (2019)
Journal Article

© The Author(s) 2019. Norsminde Fjord has received extensive geoarchaeological investigation, hosting one of the classic Stone Age shell midden sites in Denmark, and one of the best examples of the widespread oyster decline at the Mesolithic–Neolithi... Read More about δ18O-inferred salinity from Littorina littorea (L.) gastropods in a Danish shell midden at the Mesolithic–Neolithic transition.

Extending the tephra and palaeoenvironmental record of the Central Mediterranean back to 430 ka: A new core from Fucino Basin, central Italy (2019)
Journal Article

Here we present the first tephrostratigraphic, palaeomagnetic, and multiproxy data from a new ∼98 m-deep sediment core retrieved from the Fucino Basin, central Italy, spanning the last ∼430 kyr. Palaeoenvironmental proxy data (Ca-XRF, gamma ray and m... Read More about Extending the tephra and palaeoenvironmental record of the Central Mediterranean back to 430 ka: A new core from Fucino Basin, central Italy.

Enhanced glacial discharge from the eastern Antarctic Peninsula since the 1700s associated with a positive Southern Annular Mode (2019)
Journal Article

© 2019, The Author(s). The Antarctic Peninsula Ice Sheet is currently experiencing sustained and accelerating loss of ice. Determining when these changes were initiated and identifying the main drivers is hampered by the short instrumental record (19... Read More about Enhanced glacial discharge from the eastern Antarctic Peninsula since the 1700s associated with a positive Southern Annular Mode.

A century of anthropogenic environmental change in tropical Asia: Multi-proxy palaeolimnological evidence from Singapore’s Central Catchment (2019)
Journal Article

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

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

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

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

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.

Coupled climate and subarctic Pacific nutrient upwelling over the last 850,000 years (2019)
Journal Article

High latitude deep water upwelling has the potential to control global climate over glacial timescales through the biological pump and ocean-atmosphere CO2 exchange. However, there is currently a lack of continuous long nutrient upwelling records wit... Read More about Coupled climate and subarctic Pacific nutrient upwelling over the last 850,000 years.

Stable isotopes in biological and chemical fossils from lake sediments: Developing and calibrating palaeoenvironmental proxies (2019)
Journal Article

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.

The biogeochemical impact of glacial meltwater from Southwest Greenland (2019)
Journal Article

Biogeochemical cycling in high-latitude regions has a disproportionate impact on global nutrient budgets. Here, we introduce a holistic, multi-disciplinary framework for elucidating the influence of glacial meltwaters, shelf currents, and biological... Read More about The biogeochemical impact of glacial meltwater from Southwest Greenland.

A method for reconstructing temporal changes in vegetation functional trait composition using Holocene pollen assemblages (2019)
Journal Article

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

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

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

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.