Professor Darren Grocke's Outputs (160)

‘From the mouths of babes’: a subadult dietary stable isotope perspective on Roman London (Londinium) (2017)
Journal Article
Redfern, R., Gowland, R., Millard, A., Powell, L., & Gröcke, D. (2018). ‘From the mouths of babes’: a subadult dietary stable isotope perspective on Roman London (Londinium). Journal of Archaeological Science, 19, 1030-1040. https://doi.org/10.1016/j.jasrep.2017.08.015

Londinium (48–410 CE) was the focus for Roman administration and trade in Britain; it was established and inhabited by people from across the Empire who continued to practice their diverse food-ways. Roman London was a unique settlement, whose fluctu... Read More about ‘From the mouths of babes’: a subadult dietary stable isotope perspective on Roman London (Londinium).

Toward more accurate temperature reconstructions based on oxygen isotopes of subfossil chironomid head-capsules in Australia (2017)
Journal Article
Chang, J. C., Shulmeister, J., Gröcke, D. R., & Woodward, C. A. (2018). Toward more accurate temperature reconstructions based on oxygen isotopes of subfossil chironomid head-capsules in Australia. Limnology and Oceanography, 63(1), 295-307. https://doi.org/10.1002/lno.10630

This study investigates the potential of applying stable oxygen isotopes (δ18O) from head capsules (HCs) of subfossil chironomids (subfamily Tanypodinae) to reconstruct past temperature changes from south-eastern Australia. The study reports δ18O res... Read More about Toward more accurate temperature reconstructions based on oxygen isotopes of subfossil chironomid head-capsules in Australia.

Toward more accurate temperature reconstructions based on oxygen isotopes of subfossil chironomid head-capsules in Australia (2017)
Journal Article
Chang, J., Shulmeister, J., Gröcke, D., & Woodward, C. (2018). Toward more accurate temperature reconstructions based on oxygen isotopes of subfossil chironomid head-capsules in Australia. Limnology and Oceanography, 63(1), 295-307. https://doi.org/10.1002/lno.10630

This study investigates the potential of applying stable oxygen isotopes (δ18O) from head capsules (HCs) of subfossil chironomids (subfamily Tanypodinae) to reconstruct past temperature changes from south-eastern Australia. The study reports δ18O res... Read More about Toward more accurate temperature reconstructions based on oxygen isotopes of subfossil chironomid head-capsules in Australia.

Evidence for rapid weathering response to climatic warming during the Toarcian Oceanic Anoxic Event (2017)
Journal Article
Them, T., Gill, B., Selby, D., Gröcke, D., Friedman, R., & Owens, J. (2017). Evidence for rapid weathering response to climatic warming during the Toarcian Oceanic Anoxic Event. Scientific Reports, 7(1), Article 5003. https://doi.org/10.1038/s41598-017-05307-y

Chemical weathering consumes atmospheric carbon dioxide through the breakdown of silicate minerals and is thought to stabilize Earth’s long-term climate. However, the potential influence of silicate weathering on atmospheric pCO2 levels on geological... Read More about Evidence for rapid weathering response to climatic warming during the Toarcian Oceanic Anoxic Event.

Nitrogen isotope evidence for manuring of Early Neolithic Funnel Beaker Culture cereals from Stensborg, Sweden (2017)
Journal Article
Gron, K., Gröcke, D., Larsson, M., Sørensen, L., Larsson, L., Rowley-Conwy, P., & Church, M. (2017). Nitrogen isotope evidence for manuring of Early Neolithic Funnel Beaker Culture cereals from Stensborg, Sweden. Journal of Archaeological Science: Reports, 14, 575-579. https://doi.org/10.1016/j.jasrep.2017.06.042

Little is known about arable agriculture in the Early Neolithic (4000–3300 cal BC, Funnel Beaker Culture) of Southern Scandinavia. Archaeobotanical material is rare and few archaeological sites have yielded more than a small number of charred cereal... Read More about Nitrogen isotope evidence for manuring of Early Neolithic Funnel Beaker Culture cereals from Stensborg, Sweden.

Integrated, high-resolution allostratigraphic, biostratigraphic and carbon-isotope correlation of Coniacian strata (Upper Cretaceous), western Alberta and northern Montana (2017)
Book Chapter
Plint, A., Hooper, E., Grifi, M., Walaszczyk, I., Landman, N., Gröcke, D., & Jarvis, I. (2017). Integrated, high-resolution allostratigraphic, biostratigraphic and carbon-isotope correlation of Coniacian strata (Upper Cretaceous), western Alberta and northern Montana. In N. H. Landman, A. G. Plint, & I. Walaszczyk (Eds.), Allostratigraphy and biostratigraphy of the Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin (9-52). American Museum of Natural History

Inoceramid bivalves are the dominant invertebrate fauna of the Coniacian and basal Santonian of the Western Canada Foreland Basin in western Alberta. In the upper lower Coniacian through to basal Santonian, six successive faunas are recognized, which... Read More about Integrated, high-resolution allostratigraphic, biostratigraphic and carbon-isotope correlation of Coniacian strata (Upper Cretaceous), western Alberta and northern Montana.

Translocation of isotopically distinct macroalgae: a route to low-cost biomonitoring? (2017)
Journal Article
Gröcke, D., Racionero-Gómez, B., Marschalek, J., & Greenwell, H. (2017). Translocation of isotopically distinct macroalgae: a route to low-cost biomonitoring?. Chemosphere, 184, 1175-1185. https://doi.org/10.1016/j.chemosphere.2017.06.082

Nitrogen stable isotope ratios (δ15N) in macroalgae are often used to identify sources of nitrogenous pollution in fluvial and estuarine settings. This approach assumes that the macroalgal δ15N is representative of the sources of the pollution averag... Read More about Translocation of isotopically distinct macroalgae: a route to low-cost biomonitoring?.

Erosion of organic carbon from the Andes and its affects on ecosystem carbon dioxide balance (2017)
Journal Article
Clark, K., Hilton, R., West, A., Robles Caceres, A., Grocke, D., Marthews, T., …Malhi, Y. (2017). Erosion of organic carbon from the Andes and its affects on ecosystem carbon dioxide balance. Journal of Geophysical Research: Biogeosciences, 122(3), 449-469. https://doi.org/10.1002/2016jg003615

Productive forests of the Andes are subject to high erosion rates that supply to the Amazon River sediment and carbon from both recently photosynthesized biomass and geological sources. Despite this recognition, the source and discharge of particulat... Read More about Erosion of organic carbon from the Andes and its affects on ecosystem carbon dioxide balance.

A comparison of using bulk and incremental isotopic analyses to establish weaning practices in the past (2017)
Journal Article
King, C. L., Millard, A. R., Gröcke, D. R., Standen, V. G., Arriaza, B. T., & Halcrow, S. E. (2017). A comparison of using bulk and incremental isotopic analyses to establish weaning practices in the past. Science and Technology of Archaeological Research, 3(1), 126-134. https://doi.org/10.1080/20548923.2018.1443548

The use of incremental carbon and nitrogen isotopic analysis is gaining momentum as a way of establishing infant feeding practices in the past. Here we examine the differences in information gleaned through incremental isotopic techniques applied to... Read More about A comparison of using bulk and incremental isotopic analyses to establish weaning practices in the past.

High-resolution carbon isotope records of the Toarcian Oceanic Anoxic Event (Early Jurassic) from North America and implications for the global drivers of the Toarcian carbon cycle (2016)
Journal Article
Them, T., Gill, B., Caruthers, A., Gröcke, D., Tulsky, E., Martindale, R., …Smith, P. (2017). High-resolution carbon isotope records of the Toarcian Oceanic Anoxic Event (Early Jurassic) from North America and implications for the global drivers of the Toarcian carbon cycle. Earth and Planetary Science Letters, 459, 118-126. https://doi.org/10.1016/j.epsl.2016.11.021

The Mesozoic Era experienced several instances of abrupt environmental change that are associated with instabilities in the climate, reorganizations of the global carbon cycle, and elevated extinction rates. Often during these perturbations, oxygen-d... Read More about High-resolution carbon isotope records of the Toarcian Oceanic Anoxic Event (Early Jurassic) from North America and implications for the global drivers of the Toarcian carbon cycle.

Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater (2016)
Journal Article
Racionero-Gómez, B., Sproson, A., Selby, D., Gannoun, A., Gröcke, D., Greenwell, H., & Burton, K. (2016). Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater. Geochimica et Cosmochimica Acta, 199, 48-57. https://doi.org/10.1016/j.gca.2016.11.033

The osmium isotopic composition (187Os/188Os) of seawater reflects the balance of input from mantle-, continental- and anthropogenic-derived sources. This study utilizes the Phaeophyceae, Fucus vesiculosus, to analyse its Os abundance and uptake, as... Read More about Osmium uptake, distribution, and 187Os/188Os and 187Re/188Os compositions in Phaeophyceae macroalgae, Fucus vesiculosus: Implications for determining the 187Os/188Os composition of seawater.

Hydrogen isotopes in Quaternary mammal collagen from Europe (2016)
Journal Article
Gröcke, D., Sauer, P., Bridault, A., Drucker, D., Germonpré, M., & Bocherens, H. (2017). Hydrogen isotopes in Quaternary mammal collagen from Europe. Journal of Archaeological Science: Reports, 11, 12-16. https://doi.org/10.1016/j.jasrep.2016.11.020

Of the most abundant elemental constituents of organic matter, hydrogen has received the least attention due to its exchangeability with ambient water. The development of steam equilibration using two isotopically distinct waters can enable the user... Read More about Hydrogen isotopes in Quaternary mammal collagen from Europe.

Going south of the river: a multidisciplinary analysis of ancestry, mobility and diet in a population from Roman Southwark, London (2016)
Journal Article
Redfern, R., Gröcke, D., Millard, A., Ridgeway, V., Johnson, L., & Hefner, J. (2016). Going south of the river: a multidisciplinary analysis of ancestry, mobility and diet in a population from Roman Southwark, London. Journal of Archaeological Science, 74, 11-22. https://doi.org/10.1016/j.jas.2016.07.016

This study investigated the ancestry, childhood residency and diet of 22 individuals buried at an A.D. 2nd and 4th century cemetery at Lant Street, in the southern burial area of Roman London. The possible presence of migrants was investigated using... Read More about Going south of the river: a multidisciplinary analysis of ancestry, mobility and diet in a population from Roman Southwark, London.

Investigating adult diet during Industrialization in Copenhagen based on stable isotope analysis of bone collagen and hair keratin (2016)
Journal Article
Jørkov, M., & Gröcke, D. (2016). Investigating adult diet during Industrialization in Copenhagen based on stable isotope analysis of bone collagen and hair keratin. Archaeological and Anthropological Sciences, 9(7), 1327-1341. https://doi.org/10.1007/s12520-016-0373-5

This study investigated human diets during the nineteenth and twentieth century in Copenhagen through stable isotope analysis of carbon and nitrogen according to sex, age, socio-economic status, and period (of death). Stable isotope analysis was cond... Read More about Investigating adult diet during Industrialization in Copenhagen based on stable isotope analysis of bone collagen and hair keratin.

Rhenium uptake and distribution in phaeophyceae macroalgae, Fucus vesiculosus (2016)
Journal Article
Racionero-Gómez, B., Sproson, A., Selby, D., Gröcke, D., Redden, H., & Greenwell, H. (2016). Rhenium uptake and distribution in phaeophyceae macroalgae, Fucus vesiculosus. Royal Society Open Science, 3(5), Article 160161. https://doi.org/10.1098/rsos.160161

Owing to Rhenium (Re) having no known biological role, it is not fully understood how Re is concentrated in oil kerogens. A commonly held assumption is that Re is incorporated into decomposing biomass under reducing conditions. However, living macroa... Read More about Rhenium uptake and distribution in phaeophyceae macroalgae, Fucus vesiculosus.

Variation in the diet of killer whales Orcinus orca at Marion Island, Southern Ocean (2016)
Journal Article
Reisinger, R., Gröcke, D., Lübcker, E., McClymont, E., Hoelzel, A., & Nico de Bruyn, P. (2016). Variation in the diet of killer whales Orcinus orca at Marion Island, Southern Ocean. Marine Ecology Progress Series, 549, 263-274. https://doi.org/10.3354/meps11676

Diet seems to be a key factor driving diversity and isolation among killer whale populations. Killer whales at Marion Island, Southern Ocean, have been observed preying on seals and penguins but are also know to depredate Patagonian toothfish from lo... Read More about Variation in the diet of killer whales Orcinus orca at Marion Island, Southern Ocean.

Earthquake-triggered increase in biospheric carbon export from a mountain belt (2016)
Journal Article
Wang, J., Jin, Z., Hilton, R., Zhang, F., Li, G., Densmore, A., …West, A. (2016). Earthquake-triggered increase in biospheric carbon export from a mountain belt. Geology, 44(6), 471-474. https://doi.org/10.1130/g37533.1

On geological time scales, the erosion of carbon from the terrestrial biosphere and its burial in sediments can counter CO2 emissions from the solid Earth. Earthquakes may increase the erosion of this biospheric carbon and supply it to mountain river... Read More about Earthquake-triggered increase in biospheric carbon export from a mountain belt.

Intercontinental correlation of organic carbon and carbonate stable-isotope records: evidence of climate and sea-level change during the Turonian (Cretaceous) (2015)
Journal Article
Jarvis, I., Trabucho-Alexandre, J., Gröcke, D., Uličný, D., & Laurin, J. (2015). Intercontinental correlation of organic carbon and carbonate stable-isotope records: evidence of climate and sea-level change during the Turonian (Cretaceous). Depositional Record, 1(2), 53-90. https://doi.org/10.1002/dep2.6

Carbon (δ13Corg, δ13Ccarb) and oxygen (δ18Ocarb) isotope records are presented for an expanded Upper Cretaceous (Turonian–Coniacian) hemipelagic succession cored in the central Bohemian Cretaceous Basin, Czech Republic. Geophysical logs, biostratigra... Read More about Intercontinental correlation of organic carbon and carbonate stable-isotope records: evidence of climate and sea-level change during the Turonian (Cretaceous).

Miocene climate and vegetation changes in the Cape Peninsula, South Africa: evidence from biogeochemistry and palynology (2015)
Journal Article
Sciscio, L., Tsikos, H., Roberts, D., Scott, L., van Breugel, Y., Sinninghe Damste, J., …Gröcke, D. (2016). Miocene climate and vegetation changes in the Cape Peninsula, South Africa: evidence from biogeochemistry and palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 445, 124-137. https://doi.org/10.1016/j.palaeo.2015.12.014

Organic material from the Noordhoek area on the western margin of the Cape Peninsula, South Africa, was obtained from a ~ 50 m-long drill-core dominated by fluvio-lacustrine siliciclastic sediments. The aim of this study is to constrain fluctuations... Read More about Miocene climate and vegetation changes in the Cape Peninsula, South Africa: evidence from biogeochemistry and palynology.

Geochemical and lithological controls on a potential shale reservoir: Carboniferous Holywell Shale, Wales (2015)
Journal Article
Newport, L. P., Aplin, A. C., Gluyas, J. G., Greenwell, H. C., & Gröcke, D. R. (2015). Geochemical and lithological controls on a potential shale reservoir: Carboniferous Holywell Shale, Wales. Marine and Petroleum Geology, 71, 198-210. https://doi.org/10.1016/j.marpetgeo.2015.11.026

The Holywell Shale is part of the Carboniferous Bowland Shale Formation, identified as the main potential shale gas system in the UK. Here, we report geochemical and petrographic data from five outcrops of the Lower and Upper Holywell Shale across no... Read More about Geochemical and lithological controls on a potential shale reservoir: Carboniferous Holywell Shale, Wales.