Items where NERC Author is "Heaton, Timothy"

Sear, David; Langdon, Pete; Leng, Melanie ORCID: https://orcid.org/0000-0003-1115-5166; Edwards, Mary; Heaton, Tim; Langdon, Catherine; Leyland, Julian. 2022 Climate and human exploitation have regulated Atlantic salmon populations in the River Spey, Scotland, over the last 2000 years. The Holocene, 32 (8). 780-793. 10.1177/09596836221095983

Johnes, Penny; Gooddy, Daren C.; Heaton, Timothy H.E.; Binley, Andrew; Kennedy, Michael P.; Shand, Paul; Prior, Hannah. 2020 Determining the Impact of Riparian Wetlands on Nutrient Cycling, Storage and Export in Permeable Agricultural Catchments. Water, 12 (1), 167. 10.3390/w12010167

Nitsch, E.K.; Lamb, A.L.; Heaton, T.H.E.; Vaiglova, P.; Fraser, R.; Hartman, G.; Moreno-Jiménez, E.; López-Piñeiro, A.; Peña-Abades, D.; Fairbairn, A.; Eriksen, J.; Bogaard, A.. 2019 The preservation and interpretation of δ34 S values in charred archaeobotanical remains. Archaeometry, 61 (1). 161-178. 10.1111/arcm.12388

Granger, Steven J.; Heaton, Tim H.E.; Pfahler, Verena; Blackwell, Martin S.A.; Yuan, Huimin; Collins, Adrian L.. 2017 The oxygen isotopic composition of phosphate in river water and its potential sources in the Upper River Taw catchment, UK. Science of The Total Environment, 574. 680-690. 10.1016/j.scitotenv.2016.09.007

Broom-Fendley, Sam; Heaton, Timothy; Wall, Frances; Gunn, Gus. 2016 Tracing the fluid source of heavy REE mineralisation in carbonatites using a novel method of oxygen-isotope analysis in apatite: the example of Songwe Hill, Malawi. Chemical Geology, 440. 275-287. 10.1016/j.chemgeo.2016.07.023

Gooddy, Daren C.; Lapworth, Dan J. ORCID: https://orcid.org/0000-0001-7838-7960; Bennett, Sarah A.; Heaton, Tim H.E.; Williams, Peter J.; Surridge, Ben W.J.. 2016 A multi-stable isotope framework to understand eutrophication in aquatic ecosystems. Water Research, 88. 623-633. 10.1016/j.watres.2015.10.046

Guerrieri, Rossella; Vanguelova, Elena I.; Michalski, Greg; Heaton, Timothy H.E.; Mencuccini, Maurizio. 2015 Isotopic evidence for the occurrence of biological nitrification and nitrogen deposition processing in forest canopies. Global Change Biology, 21 (12). 4613-4626. 10.1111/gcb.13018

Gooddy, Daren C.; Lapworth, Dan J. ORCID: https://orcid.org/0000-0001-7838-7960; Ascott, Matthew J.; Bennett, Sarah A.; Heaton, Timothy H.E.; Surridge, Ben W.J.. 2015 Isotopic fingerprint for phosphorus in drinking water supplies. Environmental Science & Technology, 49 (15). 9020-9028. 10.1021/acs.est.5b01137

Baker, Jessica C.A.; Hunt, Sarah F.P.; Clerici, Santiago J.; Newton, Robert J.; Bottrell, Simon H.; Leng, Melanie J. ORCID: https://orcid.org/0000-0003-1115-5166; Heaton, Timothy H.E.; Helle, Gerhard; Argollo, Jaime; Gloor, Manuel; Brienen, Roel J.W.. 2015 Oxygen isotopes in tree rings show good coherence between species and sites in Bolivia. Global and Planetary Change, 133. 298-308. 10.1016/j.gloplacha.2015.09.008

Gooddy, Daren; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Ascott, Matthew; Bennett, Sarah; Heaton, Timothy. 2015 Phosphate isotopes - a tool to fingerprint leakage and environmental P sources? [Poster] In: Phosphorus Removal from Catchments: Technology or Source Control?, Nottingham, UK, 24 Feb 2015. (Unpublished)

Wallace, Michael P.; Jones, Glynis; Charles, Michael; Fraser, Rebecca; Heaton, Tim H.E.; Bogaard, Amy. 2015 Stable carbon isotope evidence for Neolithic and Bronze Age crop water management in the Eastern Mediterranean and Southwest Asia. PLOS ONE, 10 (6), e0127085. 10.1371/journal.pone.0127085

Evans, Chris D. ORCID: https://orcid.org/0000-0002-7052-354X; Chadwick, Tom; Norris, David; Rowe, Edwin C. ORCID: https://orcid.org/0000-0003-4784-7236; Heaton, Tim H.E.; Brown, Philip; Battarbee, Richard W.. 2014 Persistent surface water acidification in an organic soil-dominated upland region subject to high atmospheric deposition: the North York Moors, UK. Ecological Indicators, 37 (B). 304-316. 10.1016/j.ecolind.2012.02.018

Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Surridge, B.; Williams, P.J.; Heaton, T.H.E.; Gooddy, D.C.. 2014 Method for analysing phosphate 18O/16O ratios for waters with high C:P ratios. Nottingham, UK, British Geological Survey, 10pp. (OR/14/067) (Unpublished)

Fraser, R.A.; Bogaard, A.; Charles, M.; Styring, A.K.; Wallace, M.; Jones, G.; Ditchfield, P.; Heaton, T.H.E.. 2013 Assessing natural variation and the effects of charring, burial and pre-treatment on the stable carbon and nitrogen isotope values of archaeobotanical cereals and pulses. Journal of Archaeological Science, 40 (12). 4754-4766. 10.1016/j.jas.2013.01.032

Bogaard, A.; Fraser, R.; Heaton, T.H.E.; Wallace, M.; Vaiglova, P.; Charles, M.; Jones, G.; Evershed, R.P.; Styring, A.K.; Andersen, N.H.; Arbogast, R.-M.; Bartosiewicz, L.; Gardeisen, A.; Kanstrup, M.; Maier, U.; Marinova, E.; Ninov, L.; Schafer, M.; Stephan, E.. 2013 Crop manuring and intensive land management by Europe's first farmers. Proceedings of the National Academy of Sciences, 110 (31). 12589-12594. 10.1073/pnas.1305918110

Wallace, M.; Jones, G.; Charles, M.; Fraser, R.; Halstead, P.; Heaton, T.H.E.; Bogaard, A.. 2013 Stable carbon isotope analysis as a direct means of inferring crop water status and water management practices. World Archaeology, 45 (3). 388-409. 10.1080/00438243.2013.821671

Ansari, A.H.; Hodson, A.J.; Heaton, T.H.E.; Kaiser, J.; Marca-Bell, Alina. 2013 Stable isotopic evidence for nitrification and denitrification in a High Arctic glacial ecosystem. Biogeochemistry, 113 (1-3). 341-357. 10.1007/s10533-012-9761-9

Lapworth, Dan J. ORCID: https://orcid.org/0000-0001-7838-7960; Gooddy, Daren C.; Kent, Flo; Heaton, Tim H.E.; Cole, Steven J.; Allen, Debbie. 2013 A combined geochemical and hydrological approach for understanding macronutrient sources. Journal of Hydrology, 500. 226-242. 10.1016/j.jhydrol.2013.07.006

Styring, A.K.; Manning, H.; Fraser, R.A.; Wallace, M.; Jones, G.; Charles, M.; Heaton, T.H.E.; Bogaard, A.; Evershed, R.P.. 2013 The effect of charring and burial on the biochemical composition of cereal grains: investigating the integrity of archaeological plant material. Journal of Archaeological Science, 40 (12). 4767-4779. 10.1016/j.jas.2013.03.024

Curtis, Chris J.; Heaton, Timothy H.E.; Simpson, Gavin L.; Evans, Chris D. ORCID: https://orcid.org/0000-0002-7052-354X; Shilland, James; Turner, Simon. 2012 Dominance of biologically produced nitrate in upland waters of Great Britain indicated by stable isotopes. Biogeochemistry, 111 (1-3). 535-554. 10.1007/s10533-011-9686-8

Woodley, E.J.; Loader, N.J.; McCarroll, D.; Young, G.H.F.; Robertson, I.; Heaton, T.H.E.; Gagen, M.H.. 2012 Estimating uncertainty in pooled stable isotope time-series from tree-rings. Chemical Geology, 294-295. 243-248. 10.1016/j.chemgeo.2011.12.008

Woodley, Ewan J.; Loader, Neil J.; McCarroll, Danny; Young, Giles H.F.; Robertson, Iain; Heaton, Timothy H.E.; Gagen, Mary H.; Warham, Joseph O.. 2012 High-temperature pyrolysis/gas chromatography/isotope ratio mass spectrometry : simultaneous measurement of the stable isotopes of oxygen and carbon in cellulose. Rapid Communications in Mass Spectrometry, 26 (2). 109-114. 10.1002/rcm.5302

Heaton, Tim H.E.; Stuart, Marianne E.; Sapiano, Manuel; Sultana, Miriam Micallef. 2012 An isotope study of the sources of nitrate in Malta’s groundwater. Journal of Hydrology, 414-415. 244-254. 10.1016/j.jhydrol.2011.10.037

Granger, Steve J.; Heaton, Timothy; Bol, R.; Gooddy, Daren; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960. 2012 The oxygen isotope composition of phosphate : a potential tool in U.K. freshwater studies? In: Development of Isotopic Tracers for a Better Understanding of the Phosphorus Cycle, Ascona, Switzerland, 24-29 June 2012. 62. (Unpublished)

Brodie, Chris R.; Casford, James S.L.; Lloyd, Jeremy M.; Leng, Melanie J. ORCID: https://orcid.org/0000-0003-1115-5166; Heaton, Tim H.E.; Kendrick, Christopher P.; Yongqiang, Zong. 2011 Evidence for bias in C/N, δ13C and δ15N values of bulk organic matter, and on environmental interpretation, from a lake sedimentary sequence by pre-analysis acid treatment methods. Quaternary Science Reviews, 30 (21-22). 3076-3087. 10.1016/j.quascirev.2011.07.003

Brodie, Chris R.; Heaton, Tim H.E.; Leng, Melanie J. ORCID: https://orcid.org/0000-0003-1115-5166; Kendrick, Christopher P.; Casford, James S.L.; Lloyd, Jeremy M.. 2011 Evidence for bias in measured [delta]15N values of terrestrial and aquatic organic materials due to pre-analysis acid treatment methods. Rapid Communications in Mass Spectrometry, 25 (8). 1089-1099. 10.1002/rcm.4970

Fraser, Rebecca A.; Bogaard, Amy; Heaton, Tim; Charles, Michael; Jones, Glynis; Christensen, Bent T.; Halstead, Paul; Merbach, Ines; Poulton, Paul R.; Sparkes, Debbie; Styring, Amy K.. 2011 Manuring and stable nitrogen isotope ratios in cereals and pulses : towards a new archaeobotanical approach to the inference of land use and dietary practices. Journal of Archaeological Science, 38 (10). 2790-2804. 10.1016/j.jas.2011.06.024

Curtis, Chris J.; Evans, Chris D. ORCID: https://orcid.org/0000-0002-7052-354X; Goodale, Christine L.; Heaton, Tim H.E.. 2011 What have stable isotope studies revealed about the nature and mechanisms of N saturation and nitrate leaching from semi-natural catchments? Ecosystems, 14 (6). 1021-1037. 10.1007/s10021-011-9461-7

Curtis, Chris; Simpson, Gavin; Heaton, Tim; Maberly, Stephen ORCID: https://orcid.org/0000-0003-3541-5903; Evans, Chris ORCID: https://orcid.org/0000-0002-7052-354X; Feuchtmayr, Heidrun; Shilland, James; Turner, Simon; Kernan, Martin; Jones, Tim; Burden, Annette ORCID: https://orcid.org/0000-0002-7694-1638; Shilland, Ewan. 2010 Freshwater Umbrella third Annual Report October 2010. UCL, 122pp. (CEH Project Number: C03639) (Unpublished)

Stuart, M.E.; Maurice, L.; Heaton, T.H.E.; Sapiano, M.; Micallef Sultana, M.; Gooddy, D.C.; Chilton, P.J.. 2010 Groundwater residence time and movement in the Maltese islands : a geochemical approach. Applied Geochemistry, 25 (5). 609-620. 10.1016/j.apgeochem.2009.12.010

Heaton, Timothy; Stuart, Marianne; Sapiano, M.; Micallef Sultana, M.. 2010 Isotope tracing of nitrate : lessons from Malta. [Lecture] In: SIMSUG 2010, Exeter, UK, 28-30 April 2010.

Granger, Steven J.; Bol, Roland; Meier-Augenstein, Wolfram; Leng, Melanie J. ORCID: https://orcid.org/0000-0003-1115-5166; Kemp, Helen F.; Heaton, Tim H.E.; White, Sue M.. 2010 The hydrological response of heavy clay grassland soils to rainfall in south-west England using δ2H. Rapid Communications in Mass Spectrometry, 24 (5). 475-482. 10.1002/rcm.4281

Hodson, Andy; Heaton, Tim; Langford, Harry; Newsham, Kevin ORCID: https://orcid.org/0000-0002-9108-0936. 2010 Chemical weathering and solute export by meltwater in a maritime Antarctic glacier basin. Biogeochemistry, 98 (1-3). 9-27. 10.1007/s10533-009-9372-2

Vane, C.H. ORCID: https://orcid.org/0000-0002-8150-3640; Kim, A.W.; McGowan, S.; Leng, M.J. ORCID: https://orcid.org/0000-0003-1115-5166; Heaton, T.H.E.; Kendrick, C.P.; Coombs, P.; Yang, H.; Swann, G.E.A.. 2010 Sedimentary records of sewage pollution using faecal markers in contrasting peri-urban shallow lakes. Science of the Total Environment, 409 (2). 345-356. 10.1016/j.scitotenv.2010.09.033

Johnson, Andrew L.A.; Hickson, Jonathan A.; Bird, Annemarie; Schone, Bernd R.; Balson, Peter S.; Heaton, Timothy H.E.; Williams, Mark. 2009 Comparative sclerochronology of modern and mid-Pliocene (c. 3.5 Ma) Aequipecten opercularis (Mollusca, Bivalvia) : an insight into past and future climate change in the North-East Atlantic region. Palaeogeography, Palaeoclimatology, Palaeoecology, 284 (3-4). 164-179. 10.1016/j.palaeo.2009.09.022

Heaton, T.H.E.; Jones, Glynis; Halstead, Paul; Tsipropoulos, Taxiarchis. 2009 Variations in the 13C/12C ratios of modern wheat grain, and implications for interpretating data from Bronze Age Assiros Toumba, Greece. Journal of Archaeological Science, 36 (10). 2224-2233. 10.1016/j.jas.2009.06.007

Granger, S.J.; Heaton, Timothy; Bol, R.; Bilotta, G.S.; Butler, P.; Haygarth, P.M.; Owens, P.N.. 2008 Using [delta]15N and [delta] 18O to evaluate the sources and pathways of NO-3 in rainfall event discharge from drained agricultural grassland lysimeters at high temporal resolutions. Rapid Communications in Mass Spectrometry, 22. 1681-1689. 10.1002/rcm.3505

Curtis, Chris; Simpson, Gavin; Shilland, James; Turner, Simon; Kernan, Martin; Monteith, Donald ORCID: https://orcid.org/0000-0003-3219-1772; Rose, Neil; Evans, Chris ORCID: https://orcid.org/0000-0002-7052-354X; Norris, David; Rowe, Edwin ORCID: https://orcid.org/0000-0003-4784-7236; Emmett, Bridget ORCID: https://orcid.org/0000-0002-2713-4389; Sowerby, Alwyn; Heaton, Tim; Maberly, Stephen ORCID: https://orcid.org/0000-0003-3541-5903; Ostle, Nick; Grant, Helen. 2007 Defra Freshwater Umbrella Programme - Final Report. Freshwater Umbrella - the effects of nitrogen deposition and climate change on freshwaters in the UK. Final report. London, UCL Environmental Change Centre, 221pp. (UCL Research Report 115)

Tye, Andrew; Heaton, Timothy. 2007 Chemical and isotopic characteristics of weathering and nitrogen release in non-glacial drainage waters on Arctic tundra. Geochimica et Cosmochimica Acta, 71 (17). 4188-4205. 10.1016/j.gca.2007.06.040

Bol, Roland; Marsh, Jen; Heaton, Tim H.E.. 2007 Multiple stable isotope (18O, 13C, 15N and 34S) analysis of human hair to identify the recent migrants in a rural community in SW England. Rapid Communications in Mass Spectrometry, 21. 2951-2954. 10.1002/rcm.3168

Wynn, P.M.; Hodson, A.J.; Heaton, Timothy; Chenery, Simon. 2007 Nitrate production beneath a High Arctic glacier, Svalbard. Chemical Geology, 244 (1-2). 88-102. 10.1016/j.chemgeo.2007.06.008

Holmes, J.A.; Darbyshire, D.P.F.; Heaton, Timothy. 2007 Palaeohydrological significance of Late Quaternary strontium isotope ratios in a tropical lake. Chemical Geology, 236 (3-4). 281-290. 10.1016/j.chemgeo.2006.10.002

Mather, T.A.; McCabe, J.R.; Rai, V.K.; Thiemens, M.H.; Pyle, D.M.; Heaton, T.H.E.; Sloane, H.J.; Fern, G.R.. 2006 Oxygen and sulfur isotopic composition of volcanic sulfate aerosol at the point of emission. Journal of Geophysical Research, 111, D18205. 10.1029/2005JD006584

Papadimitriou, S.; Kennedy, H.; Rodrigues, R.M.N.V.; Kennedy, D.P.; Heaton, Timothy. 2006 Using variation in the chemical and stable isotopic composition of Zostera noltii to assess nutrient dynamics in a temperate seagrass meadow. Organic Geochemistry, 37. 1343-1358. 10.1016/j.orggeochem.2006.01.007

Birchall, Jennifer; O'Connell, Tamsin C.; Heaton, Tim H.E.; Hedges, Robert E.M.. 2005 Hydrogen isotope ratios in animal body protein reflect trophic level. Journal of Animal Ecology, 74 (5). 877-881. 10.1111/j.1365-2656.2005.00979.x

Heaton, T.H.E.; Trick, J.K.; Williams, G.M.. 2005 Isotope and dissolved gas evidence for nitrogen attenuation in landfill leachate dispersing into a chalk aquifer. Applied Geochemistry, 20 (5). 933-945. 10.1016/j.apgeochem.2004.12.004