All Outputs (142)

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

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.

Human impact on the hydroenvironment of Lake Parishan, SW Iran, through the late-Holocene (2015)
Journal Article

A multiproxy record from Lake Parishan, SW Iran, shows human impact on the lake and its catchment over the last 4000 years. The Parishan record provides evidence of changes in lake hydrology, from ostracod, diatom and isotope analyses, that are direc... Read More about Human impact on the hydroenvironment of Lake Parishan, SW Iran, through the late-Holocene.

Silica stable isotopes and silicification in a carnivorous sponge Asbestopluma sp. (2015)
Journal Article

The stable isotope composition of benthic sponge spicule silica is a potential source of palaeoceanographic information about past deep seawater chemistry. The silicon isotope composition of spicules has been shown to relate to the silicic acid conce... Read More about Silica stable isotopes and silicification in a carnivorous sponge Asbestopluma sp..

Tracking the hydro-climatic signal from lake to sediment: a field study from central Turkey (2014)
Journal Article

Palaeo-hydrological interpretations of lake sediment proxies can benefit from a robust understanding of the modern lake environment. In this study, we use Nar Gölü, a non-outlet, monomictic maar lake in central Turkey, as a field site for a natural e... Read More about Tracking the hydro-climatic signal from lake to sediment: a field study from central Turkey.

Holocene-aged human footprints from the Cuatrociénegas Basin, NE Mexico (2013)
Journal Article

Two sets of well-preserved human footprints have been found in tufa sediments in the Cuatrociénegas Basin, NE Mexico, and here we present their U-series dates of 10.55±0.03ka and 7.24±0.13ka. The former are the oldest known footprints in Mexico, alth... Read More about Holocene-aged human footprints from the Cuatrociénegas Basin, NE Mexico.

Glacial discharge along the west Antarctic Peninsula during the Holocene (2013)
Journal Article

The causes for rising temperatures along the Antarctic Peninsula during the late Holocene have been debated, particularly in light of instrumental records of warming over the past decades. Suggested mechanisms range from upwelling of warm deep waters... Read More about Glacial discharge along the west Antarctic Peninsula during the Holocene.

Recent palaeolimnological change recorded in Lake Xiaolongwan, northeast China: climatic versus anthropogenic forcing (2013)
Journal Article

Seasonally resolved diatom ?18O records from the west Antarctic Peninsula over the last deglaciation (2013)
Journal Article

Understanding the response of the Antarctic ice sheets during the rapid climatic change that accompanied the last deglaciation has implications for establishing the susceptibility of these regions to future 21st Century warming. A unique diatom δ18O... Read More about Seasonally resolved diatom ?18O records from the west Antarctic Peninsula over the last deglaciation.

Influence of the ratio of planktonic to benthic diatoms on lacustrine organic matter ? 13 C from Erlongwan maar lake, northeast China (2012)
Journal Article

Carbon isotope ratio (δ 13 C org ) values of organic matter in lake sediments are commonly used to reconstruct environmental change, but the factors which influence change are varied and complex. Here we report δ 13 C values for sediments from Erlong... Read More about Influence of the ratio of planktonic to benthic diatoms on lacustrine organic matter ? 13 C from Erlongwan maar lake, northeast China.

Evidence of past environmental conditions during the evolution of a calcretised Wadi System in Southern Jordan using stable isotopes (2012)
Journal Article

A stratigraphically and temporally ordered sequence of channel calcretes preserved along the Wadi Dana, Southern Jordan, records the Quaternary evolution of the formation and infilling of rock-cut channels and their subsequent incision in a tectonica... Read More about Evidence of past environmental conditions during the evolution of a calcretised Wadi System in Southern Jordan using stable isotopes.

A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia (2010)
Journal Article

Determining the response of sites within the Arctic Circle to long-term climatic change remains an essential pre-requisite for assessing the susceptibility of these regions to future global warming and Arctic amplification. To date, existing records... Read More about A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia.

A multiproxy palaeolimnological investigation of Holocene environmental change, between c. 10 700 and 7200 years BP, at Holebudalen, southern Norway (2008)
Journal Article

Geochemical analyses (x-ray fluorescence, δ13C and C/N ratios) were used to reconstruct early Holocene environments (between 10685 and 7260 cal. yr BP) at a small lake near Holebudalen, southern Norway. Results show a period of increasing stability,... Read More about A multiproxy palaeolimnological investigation of Holocene environmental change, between c. 10 700 and 7200 years BP, at Holebudalen, southern Norway.

Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica (2008)
Journal Article

In this paper we reconstruct hydrological variability in Lake Baikal during Marine Isotope Stage 11 (MIS 11) (427-362 ka BP) from oxygen isotope analysis of diatom silica. Highest δ18Odiatom values are found during MIS 11.3, highlighting the dominanc... Read More about Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica.

Isotope offsets in marine diatom ?18O over the last 200 ka (2008)
Journal Article

Previous work has suggested that a species effect may be present in diatom oxygen isotope ratios (δ18Odiatom). While predominantly attributed to be a size related species effect, currently the precise mechanism remains unknown. Here, two size fractio... Read More about Isotope offsets in marine diatom ?18O over the last 200 ka.

A 140-year record of recent changes in aquatic productivity in a remote, tropical alpine lake in the Rwenzori Mountain National Park, Uganda (2007)
Journal Article

Environmental change in many tropical, alpine habitats remains poorly resolved due to an absence of proximate and sustained observations. In the Rwenzori Mountains of East Africa, glaciers have receded rapidly over the last century, and here we asses... Read More about A 140-year record of recent changes in aquatic productivity in a remote, tropical alpine lake in the Rwenzori Mountain National Park, Uganda.

Diatom oxygen isotopes: evidence of a species effect in the sediment record (2007)
Journal Article

Diatom oxygen isotope measurements are commonly made on bulk mixed species assemblages due to the difficulty in purifying and separating individual taxa. As such, it is essential to understand processes in diatoms which may lead to isotope offsets bo... Read More about Diatom oxygen isotopes: evidence of a species effect in the sediment record.

A high-resolution late Holocene lake isotope record from Turkey and links to North Atlantic and monsoon climate (2006)
Journal Article

A high resolution proxy record of precipitation and evaporation variability through the past 1700 yr from δ18O analysis of a varved lake sequence from central Turkey shows rapid shifts between dry periods (AD 300–500 and AD 1400–1950) and wetter inte... Read More about A high-resolution late Holocene lake isotope record from Turkey and links to North Atlantic and monsoon climate.

Diatom D18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation (2006)
Journal Article

Establishing a time frame for the development of the modern halocline and stratified water column in the subarctic North Pacific has significant paleoclimatic implications. Here we present a d18O(diatom) record consisting of only two species that rep... Read More about Diatom D18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation.

A coupled calibration and modelling approach to the understanding of dry-land lake oxygen isotope records (2005)
Journal Article

Comparisons between climate proxies and instrumental records through the last two centuries are often used to understand better the controls on palaeoarchives and to find relationships that can be used to quantify changes in pre-instrumental climate.... Read More about A coupled calibration and modelling approach to the understanding of dry-land lake oxygen isotope records.

Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal (2005)
Journal Article

A Marine Isotope Stage (MIS) 3/early MIS 2 section from a structural high along the east coast of the North Basin of Lake Baikal was analysed for diatoms, C/N ratios, and organic carbon isotope ratios. Diatoms were present throughout MIS 3 and early... Read More about Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal.