Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Geoffrey A. T. Duller"'
Autor:
Mark D. Bateman, Helen M. Roberts, Rachel Smedley, James D. Scourse, Richard C. Chiverrell, Derek Fabel, Geoffrey A. T. Duller, Alicia Medialdea, Geraint H. Jenkins, Xianjiao Ou, Matthew J. Burke, Chris D. Clark, G.S.P. Thomas
Publikováno v:
Journal of Quaternary Science
Comprehensive mapping and the Briticechrono geochronology provides a reconstruction of the last advance and retreat of the only land-terminating ice lobe of the western British Irish Ice Sheet. The Irish Sea Glacier was fed by ice from Lake District,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5468d20256e832d7755663a6959f6633
https://eprints.gla.ac.uk/221617/1/221617.pdf
https://eprints.gla.ac.uk/221617/1/221617.pdf
Publikováno v:
Smedley, R.K.; Duller, G.A.T.; Rufer, Daniel; Utley, J.E.P. (2020). Empirical assessment of beta dose heterogeneity in sediments: Implications for luminescence dating. Quaternary geochronology, 56(101052), p. 101052. Elsevier 10.1016/j.quageo.2020.101052
Optically stimulated luminescence (OSL) dating of single grains is often required to determine an accurate age for partially-bleached sediment by identifying those grains with OSL signals that were well bleached prior to burial. However, single-grain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68ddc1acefb2b02582ba0b67d04824fd
https://boris.unibe.ch/153224/1/1-s2.0-S1871101420300017-main.pdf
https://boris.unibe.ch/153224/1/1-s2.0-S1871101420300017-main.pdf
Autor:
Andrew J. Plater, Geoffrey A. T. Duller, Lawrence Barham, Mayank Jain, D. Colton, Elizabeth Whitfield
Publikováno v:
Geomorphology
This is the first systematic investigation of two distinctive geomorphological features recorded in the central Luangwa River valley, Zambia. A series of low hills was found to be capped by thin (~1 m) gravel deposits containing stratified Stone Age
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4aab3d1d2fa0eb2b5df5af2193e5626
https://doi.org/10.1016/j.geomorph.2021.107923
https://doi.org/10.1016/j.geomorph.2021.107923
Autor:
Frances M. Williams, Geoffrey A. T. Duller, O. A. M. El Tom, Jamie Woodward, R. N. Munro, Timothy T. Barrows, Y El Hajaz, Martin Williams, Mark G. Macklin
Publikováno v:
Williams, M A J, Duller, G A T, Williams, F M, Woodward, J C, Macklin, M G, El Tom, O A M, Munro, R N, El Hajaz, Y & Barrows, T T 2015, ' Causal links between Nile floods and eastern Mediterranean sapropel formation during the past 125 kyr confirmed by OSL and radiocarbon dating of Blue and White Nile sediments ', Quaternary Science Reviews, vol. 130, pp. 89-108 . https://doi.org/10.1016/j.quascirev.2015.05.024
It has long been hypothesised that beds of highly organic mud or sapropels seen in marine sediment cores retrieved from the floor of the eastern Mediterranean accumulated during times of high Nile fluvial discharge. Our recent fieldwork in the valley
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84e5251b662c39899b29774b02b607db
https://doi.org/10.1016/j.quascirev.2015.05.024
https://doi.org/10.1016/j.quascirev.2015.05.024
Autor:
Xingxing Liu, Helen M. Roberts, Yougui Song, Weiguo Liu, Ran Zhang, Shugang Kang, Jianghu Lan, Geoffrey A. T. Duller, Xulong Wang
Publikováno v:
Quaternary Science Reviews. 246:106553
The evolution of Holocene moisture in semiarid and arid regions of Central Asia is key to understanding changes in current and future water resources, and has been a hotly debated topic in the past few decades. Central Asian loess deposits have shown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62db5d4d1a3b54eb580d9799c97d0019
https://doi.org/10.1016/j.quascirev.2020.106553
https://doi.org/10.1016/j.quascirev.2020.106553
Publikováno v:
Radiation Measurements. 47:790-796
Feldspars form a solid-solution series whereby the K-content may range from 0 to 14%. LA-ICP-MS measurements for density-separated single-grains of feldspar yielded realistic concentrations of K within the range of those naturally occurring, and also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e03737119731bf3bd84ad5c67574794
https://doi.org/10.1016/j.radmeas.2012.01.014
https://doi.org/10.1016/j.radmeas.2012.01.014
Autor:
Geoffrey A. T. Duller
Publikováno v:
Radiation Measurements. 47:770-777
Proceedings of the 13th International Conference on Luminescence and Electron Spin Resonance Dating, 10–14 July, 2011, Torun, Poland
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f32cc49d16e41bfae05ad05dbac5f10
https://doi.org/10.1016/j.radmeas.2012.01.006
https://doi.org/10.1016/j.radmeas.2012.01.006
Cross-talk during single grain optically stimulated luminescence measurements of quartz and feldspar
Autor:
Geoffrey A. T. Duller
Publikováno v:
Radiation Measurements. 47:219-224
Focussed laser systems designed to measure the optically stimulated luminescence (OSL) signals from individual sand sized mineral grains are now widely used. One system that is commonly used can hold up to 100 grains on a 9.8 mm diameter aluminium di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d11f76ccd133401a00155cb68eea70e
https://doi.org/10.1016/j.radmeas.2011.12.006
https://doi.org/10.1016/j.radmeas.2011.12.006
Autor:
Geoffrey A. T. Duller, Ann G. Wintle
Publikováno v:
Quaternary Geochronology. 7:6-20
Luminescence dating based on measurement of the fast component of the optically stimulated luminescence (OSL) signal of quartz now plays a key role in providing chronological control for late Quaternary sediments. Although highly successful, the meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01ab83b7e633eefe5850f6731aa7524e
https://doi.org/10.1016/j.quageo.2011.09.003
https://doi.org/10.1016/j.quageo.2011.09.003
Autor:
Anwar Alizai, Julie A. Durcan, Sam VanLaningham, Dorian Q. Fuller, Liviu Giosan, Ali R. Tabrez, Mark G. Macklin, Peter D. Clift, Andrew Carter, Geoffrey A. T. Duller, Mohammed Danish
Publikováno v:
Geology. 40:211-214
The Harappan Culture, one of the oldest known urban civilizations, thrived on the northwest edge of the Thar Desert (India and Pakistan) between 3200 and 1900 BCE. Its demise has been linked to rapid weakening of the summer monsoon at this time, yet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5effd0749a8b49a64f4dd7c1667b333d
https://doi.org/10.1130/g32840.1
https://doi.org/10.1130/g32840.1