UC Research Profile - University of Canterbury

Associate Professor Travis Whittier Horton

Contact

Department: School of Earth and Environment

Email: travis.horton@canterbury.ac.nz

Direct Dial: +64 3 3694386

Office: Beatrice Tinsley Rm 212

Language: English

About

Research / Creative works

Networks

Fields of Research

Animal migration
Earth system science
Hydrothermal fluid flow
Stable isotope geochemistry
Uplift of mountain belts
Earthquake research

Researcher Summary

Stable isotope geochemistry and biogeochemistry, interactions among the different spheres of the earth system, and relationships among tectonic, topographic, and climatic processes and conditions. Source and transport of fluids in active orogens and volcanic centers. Geochemical and biogeochemical proxies for climate change in the southern hemisphere on a variety of spatial and temporal scales. Geochemical tracing and quality assessment of water resources. Biogeochemical evaluation of foodweb structure including nutrient and trace element transport paths in exotic ecosystems. Paleotopographic investigation of mountain belts and plateaus.

Subject Area: Disciplines

Earth Sciences: Climatology ; Geochemistry ; Palaeontology

Resources

Staff webpage

Travis_Horton.jpg

Prizes and Awards

Erskine Fellow ( 2011 - 2012)

Research/Scholarly/Creative Works

Journal Articles

Bennet DG., Horton TW., Goldstien SJ., Rowe L. and Briskie JV. (2020) Seasonal and annual variation in the diving behaviour of Hutton's shearwater (Puffinus huttoni). New Zealand Journal of Zoology 47(4): 300-323. http://dx.doi.org/10.1080/03014223.2020.1767660.

Horton TW., Zerbini AN., Andriolo A., Danilewicz D. and Sucunza F. (2020) Multi-Decadal Humpback Whale Migratory Route Fidelity Despite Oceanographic and Geomagnetic Change. Frontiers in Marine Science 7 http://dx.doi.org/10.3389/fmars.2020.00414.

Pilcher N., Gaw S., Eisert R., Horton TW., Gormley AM., Cole TL. and Lyver POB. (2020) Latitudinal, sex and inter-specific differences in mercury and other trace metal concentrations in Adélie and Emperor penguins in the Ross Sea, Antarctica. Marine Pollution Bulletin 154 http://dx.doi.org/10.1016/j.marpolbul.2020.111047.

Bennet D., Horton T., Goldstien S., Rowe L. and Briskie J. (2019) Flying south: Foraging locations of the Hutton's shearwater (Puffinus huttoni) revealed by Time‐Depth Recorders and GPS tracking. Ecology and Evolution 9(14): 7914-7927. http://dx.doi.org/10.1002/ece3.5171.

Horton TW., Hauser N., Cassel S., Klaus KF., de Oliveira TF. and Key N. (2019) Doctor drone: Non-invasive measurement of humpback whale vital signs using unoccupied aerial system infrared thermography. Frontiers in Marine Science 6(JUL) http://dx.doi.org/10.3389/fmars.2019.00466.

Morgenstern R., Turnbull RE., Ashwell PA., Horton TW. and Oze C. (2019) Petrological and geochemical characteristics of REE mineralization in the A-type French Creek Granite, New Zealand. Mineralium Deposita 54(7): 935-958. http://dx.doi.org/10.1007/s00126-018-0854-9.

Rissmann CWF., Pearson LK., Beyer M., Couldrey MA., Lindsay JL., Martin AP., Baisden WT., Clough TJ., Horton TW. and Webster-Brown JG. (2019) A hydrochemically guided landscape classification system for modelling spatial variation in multiple water quality indices: Process-attribute mapping. Science of the Total Environment 672: 815-833. http://dx.doi.org/10.1016/j.scitotenv.2019.03.492.

Stewart SD., Young MB., Harding JS. and Horton TW. (2019) Invasive Nitrogen-Fixing Plant Amplifies Terrestrial–Aquatic Nutrient Flow and Alters Ecosystem Function. Ecosystems 22(3): 587-601. http://dx.doi.org/10.1007/s10021-018-0289-2.

Gamlen-Greene R., Harding JS., Hawke DJ. and Horton TW. (2018) Forest stream biota carbon: Nitrogen ratios are unaffected by nutrient subsidies from breeding Westland petrels (Procellaria westlandica). Marine and Freshwater Research 69(10): 1508-1516. http://dx.doi.org/10.1071/MF17301.

Hanson MC., Oze C., Werner C. and Horton TW. (2018) Soil δ¹³C-CO2 and CO2 flux in the H2S-rich Rotorua Hydrothermal System utilizing Cavity Ring Down Spectroscopy. Journal of Volcanology and Geothermal Research 358: 252-260. http://dx.doi.org/10.1016/j.jvolgeores.2018.05.018.

Appleby JR., Brook MS., Horton TW., Fuller IC., Holt KA. and Quincey DJ. (2017) Stable isotope (δD–δ18O) relationships of ice facies and glaciological structures within the mid-latitude maritime Fox Glacier, New Zealand. Annals of Glaciology 58(75): 155-165. http://dx.doi.org/10.1017/aog.2017.11.

Cox TL., Oze C. and Horton TW. (2017) Iron concretions within a highly altered unit of the Berlins Porphyry, New Zealand: an abiotic or biotic story? Mineralogy and Petrology 111(2): 173-181. http://dx.doi.org/10.1007/s00710-016-0469-8.

Griffin S., Horton TW. and Oze C. (2017) Origin of warm springs in Banks Peninsula, New Zealand. Applied Geochemistry 86: 1-12. http://dx.doi.org/10.1016/j.apgeochem.2017.09.013.

Hawke DJ., Cranney OR., Horton TW., Bury SJ., Brown JCS. and Holdaway RN. (2017) Foliar and soil N and δ¹⁵N as restoration metrics at Pūtaringamotu Riccarton Bush, Christchurch city. Journal of the Royal Society of New Zealand 47(4): 319-335. http://dx.doi.org/10.1080/03036758.2017.1281319.

Horton TW., Hauser N., Zerbini AN., Francis MP., Domeier ML., Andriolo A., Costa DP., Robinson PW., Duffy CAJ. and Nasby-Lucas N. (2017) Route fidelity during marine megafauna migration. Frontiers in Marine Science 4(DEC) 422: 21. http://dx.doi.org/10.3389/fmars.2017.00422.

Horton TW., Oline A., Hauser N., Khan TM., Laute A., Stoller A., Tison K. and Zawar-Reza P. (2017) Thermal imaging and biometrical thermography of humpback whales. Frontiers in Marine Science 4(DEC) 424: 11. http://dx.doi.org/10.3389/fmars.2017.00424.

Andrews MG., Jacobson AD., Lehn GO., Horton TW. and Craw D. (2016) Radiogenic and stable Sr isotope ratios (87Sr/86Sr, δ88/86Sr) as tracers of riverine cation sources and biogeochemical cycling in the Milford Sound region of Fiordland, New Zealand. Geochimica et Cosmochimica Acta 173: 284-303. http://dx.doi.org/10.1016/j.gca.2015.10.005.

Horton TW., Defliese WF., Tripati AK. and Oze C. (2016) Evaporation induced 18O and 13C enrichment in lake systems: A global perspective on hydrologic balance effects. Quaternary Science Reviews 131(B): 365-379. http://dx.doi.org/10.1016/j.quascirev.2015.06.030.

Lorrey AM., Brookman TH., Evans MN., Fauchereau NC., Macinnis-Ng C., Barbour MM., Criscitiello A., Eischeid G., Fowler AM. and Horton TW. (2016) Stable oxygen isotope signatures of early season wood in New Zealand kauri (Agathis australis) tree rings: Prospects for palaeoclimate reconstruction. Dendrochronologia 40: 50-63. http://dx.doi.org/10.1016/j.dendro.2016.03.012.

Quigley MC., Hughes MW., Bradley BA., van Ballegooy S., Reid CM., Morgenroth J., Horton TW., Duffy B. and Pettinga JR. (2016) The 2010-2011 Canterbury Earthquake Sequence: Environmental effects, seismic triggering thresholds and geologic legacy. Tectonophysics 672–673: 228-274. http://dx.doi.org/10.1016/j.tecto.2016.01.044.

Wells NS., Baisden WT., Horton TW. and Clough TJ. (2016) Spatial and temporal variations in nitrogen export from a New Zealand pastoral catchment revealed by stream water nitrate isotopic composition. Water Resources Research (early access online) http://dx.doi.org/10.1002/2015WR017642.

Greer AL., Horton TW. and Nelson XJ. (2015) Simple ways to calculate stable isotope discrimination factors and convert between tissue types. Methods in Ecology and Evolution 6(11): 1341-1348. http://dx.doi.org/10.1111/2041-210X.12421.

Bloomberg S., Werner C., Rissmann C., Mazot A., Horton T., Gravley D., Kennedy B. and Oze C. (2014) Soil CO2 emissions as a proxy for heat and mass flow assessment, Taupō Volcanic Zone, New Zealand. Geochemistry, Geophysics, Geosystems 15(12): 4885-4904. http://dx.doi.org/10.1002/2014GC005327.

Brookman TH., Steward GA., Palmer JG., Fenwick P., Austen BH. and Horton TW. (2014) Raised in the wild south: a dendrochronological and dendrochemical profile of a far-southern stand of kauri. New Zealand Journal of Forestry Science 44(14) http://dx.doi.org/10.1186/s40490-014-0014-7.

Hanson MC., Oze C. and Horton TW. (2014) Identifying blind geothermal systems with soil CO2 surveys. Applied Geochemistry 50: 106-114. http://dx.doi.org/10.1016/j.apgeochem.2014.08.009.

Horton TW., Bierregaard RO., Zawar-Reza P., Holdaway RN. and Sagar P. (2014) Juvenile Osprey Navigation During Trans-Oceanic Migration. PLOS ONE 9(12) e114557: 1-32. http://dx.doi.org/10.1371/journal.pone.0114557.

Craw D., Upton P., Horton T. and Williams J. (2013) Migration of hydrothermal systems in an evolving collisional orogeny, New Zealand. Mineralium Deposita 48(2): 233-248. http://dx.doi.org/10.1007/s00126-012-0421-8.

Kornfeld A., Atkin OK., Griffin KL., Horton TW., Yakir D. and Turnbull MH. (2013) Modulation of respiratory metabolism in response to nutrient changes along a soil chronosequence. Plant, Cell and Environment 36(6): 1120-1134. http://dx.doi.org/10.1111/pce.12047.

Kornfeld A., Heskel M., Atkin OK., Gough L., Griffin KL., Horton TW. and Turnbull MH. (2013) Respiratory flexibility and efficiency are affected by simulated global change in Arctic plants. New Phytologist 197(4): 1161-1172. http://dx.doi.org/10.1111/nph.12083.

Chamberlain CP., Mix HT., Mulch A., Hren MT., Kent-Corson ML., Davis SJ., Horton TW. and Graham SA. (2012) The Cenozoic Climatic and topographic evolution of the Western North American Cordillera. American Journal of Science 312(1): 213-262. http://dx.doi.org/10.2475/02.2012.05.

Cox S., Rutter HK., Manga M., Weir JJ., Ezzy T., White PA., Horton TW. and Scott D. (2012) Hydrological effects of the Mw7.1 Darfield (Canterbury) earthquake, 4 September 2010, New Zealand. New Zealand Journal of Geology and Geophysics 55(3): 231-247. http://dx.doi.org/10.1080/00288306.2012.680474.

Deering CD., Horton TW., Gravley DM. and Cole JW. (2012) Hornblende, cummingtonite, and biotite hydrogen isotopes: Direct evidence of slab-derived fluid flux in silicic magmas of the Taupo Volcanic Zone, New Zealand. Journal of Volcanology and Geothermal Research 233-234: 27-36. http://dx.doi.org/10.1016/j.jvolgeores.2012.04.010.

Horton TW. and Oze C. (2012) Are two elements better than one? Dual isotope-ratio detrending of evaporative effects on lake carbonate paleoelevation proxies. Geochemistry, Geophysics, Geosystems 13(1) Q0AK05 http://dx.doi.org/10.1029/2012GC004132.

Kornfeld A., Horton TW., Yakir D. and Turnbull MH. (2012) Correcting for nonlinearity effects of continuous flow isotope ratio mass spectrometry across a wide dynamic range. Rapid Communications in Mass Spectroscopy 26(4): 460-468. http://dx.doi.org/10.1002/rcm.6120.

Kornfeld A., Horton TW., Yakir D., Searle SY., Griffin KL., Atkin OK., Subke JA. and Turnbull MH. (2012) A field-compatible method for measuring alternative respiratory pathway activities in vivo using stable O2 isotopes. Plant, Cell & Environment 35(8): 1518-1532. http://dx.doi.org/10.1111/j.1365-3040.2012.02507.x.

Quigley MC., Duffy B., Woodhead J., Hellstrom J., Moody L., Horton T., Soares J. and Fernandes L. (2012) U/Pb dating of a terminal Pliocene coral from the Indonesian Seaway. Marine Geology 311-314: 57-62. http://dx.doi.org/10.1016/j.margeo.2012.01.004.

Gray D., Harding J., Elberling B., Horton T., Clough TJ. and Winterbourn M. (2011) Carbon Cycling in Floodplain Ecosystems: Out-Gassing and Photosynthesis Transmit Soil δ13C Gradient Through Stream Food Webs. Ecosystems 14(4): 583-597. http://dx.doi.org/10.1007/s10021-011-9430-1.

Horton TW., Holdaway RN., Zerbini AN., Hauser N., Garrigue C., Andriolo A. and Clapham PJ. (2011) Straight as an arrow: humpback whales swim constant course tracks during long-distance migration. Biology Letters 7(5): 674-679. http://dx.doi.org/10.1098/rsbl.2011.0279.

Searle SY., Thomas S., Griffin KL., Horton T., Kornfeld A., Yakir D., Hurry V. and Turnbull MH. (2011) Leaf respiration and alternative oxidase in field-grown alpine grasses respond to natural changes in temperature and light. New Phytologist 189(4): 1027-1039. http://dx.doi.org/10.1111/j.1469-8137.2010.03557.x.

Craw D., Upton P., Yu B., Horton TW. and Chen Y. (2010) Young orogenic gold mineralisation in active collisional mountains, Taiwan. Mineralium Deposita 45(7): 631-646. http://dx.doi.org/10.1007/s00126-010-0297-4.

Quigley M., Horton T., Hellstrom J., Cupper M. and Sandiford M. (2010) Holocene climate variability in arid Australia from speleothem and alluvial records. The Holocene 20(7): 1093-1104. http://dx.doi.org/10.1177/0959683610369508.

Davis SJ., Mulch A., Carroll AR., Horton TW. and Page Chamberlain C. (2009) Paleogene landscape evolution of the central North American Cordillera: Developing topography and hydrology in the Laramide foreland. Geological Society of America Bulletin 121(1-2): 100-116. http://dx.doi.org/10.1130/B26308.1.

Horton T., Blum JD., Zhouqing X., Hren M. and Chamberlain CP. (2009) Stable isotope food-web analysis and mercury biomagnification in polar bears (Ursus maritimus). Polar Research 28(3): 443-454. http://dx.doi.org/10.1111/j.1751-8369.2009.00114.x.

Horton TW. and Chamberlain CP. (2006) Stable isotopic evidence for Neogene surface downdrop in the central Basin and Range Province. GEOLOGICAL SOCIETY OF AMERICA BULLETIN 118(3-4): 475-490. http://dx.doi.org/10.1130/B25808.

Sjostrom DJ., Hren MT., Horton TW., Waldbauer JR. and Chamberlain CP. (2006) Stable isotopic evidence for a pre-late Miocene elevation gradient in the Great Plains - Rocky Mountain region, USA. Special Paper of the Geological Society of America 398: 309-319. http://dx.doi.org/10.1130/2006.2398(19).

Graham SA., Chamberlain CP., Yue Y., Ritts BD., Hanson AD., Horton TW., Waldbauer JR., Poage MA. and Feng X. (2005) Stable isotope records of Cenozoic climate and topography, Tibetan plateau and Tarim basin. American Journal of Science 305(2): 101-118.

Campbell JR., Craw D., Frew R., Horton T. and Chamberlain CP. (2004) Geochemical signature of orogenic hydrothermal activity in an active tectonic intersection zone, Alpine Fault, New Zealand. Mineralium Deposita 39(4): 437-451. http://dx.doi.org/10.1007/s00126-004-0421-4.

Horton TW., Sjostrom DJ., Abruzzese MJ., Poage MA., Waldbauer JR., Hren M., Wooden J. and Chamberlain CP. (2004) Spatial and temporal variation of Cenozoic surface elevation in the Great Basin and Sierra Nevada. American Journal of Science 304(10): 862-888.

Horton TW., Blum JD., Craw D., Koons PO. and Chamberlain CP. (2003) Oxygen, carbon, and strontium isotopic constraints on timing and sources of crustal fluids in an active orogen: South Island, New Zealand. New Zealand Journal of Geology and Geophysics 46(3): 457-471.

Craw D., Koons PO., Horton T. and Chamberlain CP. (2002) Tectonically driven fluid flow and gold mineralisation in active collisional orogenic belts: comparison between New Zealand and western Himalaya. Tectonophysics 348(1-3): 135-153. http://dx.doi.org/10.1016/S0040-1951(01)00253-0.

Horton TW., Becker JA., Craw D., Koons PO. and Chamberlain CP. (2001) Hydrothermal arsenic enrichment in an active mountain belt: Southern Alps, New Zealand. Chemical Geology 177(3-4): 323-339. http://dx.doi.org/10.1016/S0009-2541(00)00416-2.

Becker JA., Craw D., Horton T. and Chamberlain CP. (2000) Gold mineralisation near the Main Divide, upper Wilberforce valley, Southern Alps, New Zealand. New Zealand Journal of Geology and Geophysics 43(2): 199-215. http://dx.doi.org/10.1080/00288306.2000.9514881.

Horton TW., Chamberlain CP., Fantle M. and Blum JD. (1999) Chemical weathering and lithologic controls of water chemistry in a high-elevation river system: Clark's Fork of the Yellowstone River, Wyoming and Montana. Water Resources Research 35(5): 1643-1655.

Conference Contributions - Published

Holzer I., Hampton SJ., Hampton SJ., Horton T., Horton T., Carroll B., Carroll B., McGuire C. and McGuire C. (2016) CONTROLS ON GROUNDWATER RESOURCES IN LOESS-COVERED VOLCANICS: CHEMICAL AND ISOTOPIC ANALYSES OF BANKS PENINSULA SPRINGS, NEW ZEALAND. In Geological Society of America. http://dx.doi.org/10.1130/abs/2016am-283897.

Bloomberg S., Rissmann C., Mazot A., Oze C., Horton T., Gravley D., Kennedy B., Werner C., Christenson B. and Pawson J. (2012) Soil gas flux exploration at the Rotokawa Geothermal Field and White Island, New Zealand. In Proceedings SGP-TR-194.

Horton TW., Atkinson L. and Oze C. (2012) Hydrothermal carbonate geochemistry of the Ngatamariki subsurface reservoir, New Zealand. In Proceedings: 8pp.

Nobes DC., Johnston AG., Holdaway RN. and Horton TW. (2012) Ground penetrating radar imaging of the late Quaternary Pyramid Valley lake deposit, North Canterbury, New Zealand: Correlation with paleoclimatic records and the stratigraphic sequence. In : 591-594. http://dx.doi.org/10.1109/ICGPR.2012.6254932.

Conference Contributions - Other

Eisert R., Goetz K., Horton T., Lundquist D., Lyver P., Parker S., Rayment W., Stockin K. and Visser I. (2017) Top Predators and Research & Monitoring of the Ross Sea region Marine Protected Area. Dunedin, New Zealand: New Zealand Antarctic Science Conference, 26-28 Jun 2017.

Eisert R., Pinkerton M., Lyver P., Horton T., Visser I., Currey R. and Sharp B. (2015) The importance of top predators as sentinels of the Ross Sea ecosystem. Christchurch, New Zealand: Annual Antarctic Conference, 29 Jun-2 Jul 2015.

Hanson MC., Oze C. and Horton TW. (2013) Identifying geothermal activity in low CO2 flux geothermal systems. Denver, CO, USA: Geological Societry of America Annual Conference, 27-30 Oct 2013.

Oze C., Cox TL. and Horton TW. (2013) Ancient high temperature microbial activity in the Berlins Porphyry, New Zealand. Denver, CO, USA: Geological Society of America Annual Conference, 27-30 Oct 2013.

Gravley D., Cole J., Deering C., Hampton S., Horton T., Kennedy B., Oze C., Powell T. and Villeneuve M. (2012) Source to surface geothermal research programme: University of Canterbury and Mighty River Power Ltd. Hamilton, New Zealand: New Zealand GeoSciences Annual Conference (GSNZ), 25-28 Nov 2012.

Kennedy B., Bloomberg S., Rissmann C., Horton T., Mazot A., Gravley D. and Oze C. (2012) Soil gas exploration at Rotokawa geothermal field, New Zealand. Montreal, Canada: Goldschmidt 2012, 24-29 Jun 2012.

Mazot A., Bloomberg S., Horton T., Rissman C., Oze C., Gravley D. and Kennedy B. (2012) Carbon dioxide degassing and estimation of thermal energy release from White Island volcano, New Zealand. Montreal, Canada: Goldschmidt 2012, 24-29 Jun 2012.

Blackstock JM., Horton TW. and Zawar-Reza P. (2010) Understanding surface-groundwater interactions through combined physical and chemical data analysis: tracing shallow groundwater recharge in Christchurch, New Zealand. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 1-1 Dec 2010.

Gray DP. and Horton TW. (2010) Carbon cycling in floodplain ecosystems: excess pCO2, extreme d13C, qnd snail shell proxies. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 1-1 Dec 2010.

Horton TW., Holdaway RN., Zerbini A., Andriolo A. and Clapham PJ. (2010) Coupled solar-magnetic orientation during leatherback turtle (Dermochelys coriacea), great white shark (Carcharodon carcharias), arctic tern (Sterna paradisaea), and humpback whale (Megaptera novaeangliae) long-distance migration. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 1-1 Dec 2010.

Logan AJ. and Horton TW. (2010) A new method of obtaining high-resolution paleoclimate records from speleothem fluid inclusions. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 13-17 Dec 2010.

Oze C. and Horton TW. (2010) Geochemistry and minerality of wine. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 1-1 Dec 2010.

Horton TW. (2009) A new aquatic gastropod stable isotopic continental paleoclimate proxy for New Zealand systems. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 14-18 Dec 2009.

Horton TW. (2009) New and novel stable isotopic proxies for New Zealand systems. Napier, New Zealand: New Zealand Geochemical and Mineralogical Society (NZGeMS) Biennial Conference, 8-10 Nov 2009.

Horton TW. (2009) Stable isotopic research directions at the University of Canterbury. Wellington, New Zealand: The 2nd Stable Isotope Users Group Workshop, 1-1 Nov 2009.

Quigley M. and Horton TW. (2009) Holocene climate variability in arid Australia from speleothem and alluvial records. Wellington, New Zealand: Past Climates Meeting, Symposium and Australasian-INTIMATE Workshop, 15-17 May 2009.

Quigley M., Horton T., Hellstrom J. and Cupper M. (2009) Of Drought and Flooding Rains: Holocene Precipitation Variability an Arid Australia from Speleothem and Alluvial Records. Portland, OR, USA: Geological Society of America (GSA) Annual Meeting 2009, 18-21 Oct 2009.

Searle SY., Thomas S., Turnbull M., Griffin KL., Kornfeld A., Atkin O., Yakir D., Horton T. and Hurry V. (2009) Mechanisms regulating thermal acclimation of respiration in snow tussock on short timescales. Albuquerque, NM, USA: Ecological Society of America (ESA) Annual Meeting, 1-1 Aug 2009.

Horton TW. (2008) Biomineral stable isotopic palaeoenvironmental proxies, New Zealand. Cairns Conference Centre, Cairns, Australia: American Geophysical Union - Western Pacific Geophysics Meeting, 29 Jul-1 Aug 2008.

Horton TW. (2008) Biomineral Stable Isotopic paleoclimate proxies: modern calibrations for New Zealand. Te Papa, Wellington, New Zealand: New Zealand Geological Society Annual Meeting, 1-1 Nov 2008.

Hart AS., Warren SS. and Horton TW. (2007) Stable isotope interpretations of Tertiary paleotopography in the eastern Great Basin. Bellingham, WA, U.S.A.: Geological Society of America (GSA) Annual Meeting, 1-1 May 2007.

Horton TW., Blum JD., Xie Z., Hren M. and Page Chamberlain C. (2007) Mercury Biomagnification in Polar Bears. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 1-1 Dec 2007.

Kelsey KC. and Horton T. (2007) Source and fate of metals in two catchments of the Upper Columbia River basin, Stevens County, WA. Bellingham, WA, U.S.A.: Geological Society of America (GSA) Annual Meeting, 1-1 May 2007.

Eiriksson DP. and Horton TW. (2006) Origin of laminated lacustrine carbonates: implications for paleoclimate reconstruction. Anchorage, AK, USA: Geological Society of America (GSA) Annual Meeting, 1-1 May 2006.

Horton TW. (2006) Paleogene uplift of the Elko and Claron Basins. San Francisco, CA, USA: American Geophysical Union (AGU) Fall Meeting, 1-1 Dec 2006.

Johnson BW., Gillette DD. and Horton TW. (2006) Stable isotope stratigraphy of a therizinosaur-bearing section of the Tropic Shale near Big Water, Utah. Anchorage, AK, USA: Geological Society of America (GSA) Annual Meeting, 1-1 May 2006.

Phelps DE., Johnson BW. and Horton TW. (2006) Stable isotope paleotopography of the Colorado Plateau/Basin and Range transition zone. Gunnison, CO, U.S.A.: Geological Society of America (GSA) Annual Meeting, 1-1 May 2006.

Review and Refereeing

Displaying all items.

Geology ( 2007 - 2021)

Marine and Freshwater Research ( 2008 - 2021)

New Zealand Journal of Geology and Geophysics ( 2009 - 2021)