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Now showing items 156-175 of 201

Quaternary palaeogeomorphologic evolution of the Wadi Faynan area, Southern Jordan

Duller, Geoff A. T.; McLaren, Sue; Gilbertson, D.; Grattan, John; Hunt, Chris; Barker, Graeme (2004)

The Faynan area comprises a complex assemblage of deposits and landforms of varying nature, age and position in the landscape. The dominant facies are fluvial, slope and aeolian. At least eight palaeochannels are present ...
Quaternary Science 2007: a Fifty-Year Retrospective

Lowe, John J.; Walker, Mike J. C. (2007-12)

This paper reviews 50 years of progress in understanding the recent history of the Earth as contained within the stratigraphical record of the Quaternary. It describes some of the major technological and methodological ...
Radon and King Solomons Miners: Faynan Orefeild, Jordanian desert

Grattan, John; Gilmore, Graeme; Gilbertson, D.; Pyatt, Brian; Hunt, Chris; McLaren, Sue; Phillips, Paul; Denman, Anthony (2004)

Concentrations of Rn were measured in ancient copper mines which exploited the Faynan Orefield in the South- Western Jordanian Desert.The concentrations of radon gas detected indicate that the ancient metal workers would ...
Rates of dust deposition between 50 ka and 20 ka revealed by OSL dating at Yuanbao on the Chinese Loess Plateau

Lai, Z. P.; Wintle, Ann G.; Thomas, D. S. G. (2007-05)

A new chronology has been constructed for an 18-m section of Malan Loess at Yuanbao, near Linxia, on the western edge of the Chinese Loess Plateau. The chronology has been obtained using the optically stimulated luminescence ...
Reassessment of the record of linear dune activity in Tasmania using optical dating

Duller, G. A. T.; Augustinus, P. C. (2006-10)

Stabilized linear dunes in northeastern Tasmania have previously been dated using luminescence signals from quartz (Duller G.A.T, Augustinus, P., 1997 Luminescence studies of dunes from north-eastern Tasmania. Quaternary ...
Recent faulting in the southern Arava, Dead Sea Transform: Evidence from single grain luminescence dating

Porat, Naomi; Duller, Geoffrey Alastair Thomas; Amit, Rivka; Zilberman, Ezra; Enzel, Yehouda (2009-04-15)

Colluvial sediments in tectonically active areas are associated with faults, and dating them is important for timing earthquakes and assessing seismic hazards. In hyperarid regions organic matter for radiocarbon is scarce, ...
Reconstructing the biogeochemical consequences of disturbances

Williams, Joseph James; Morris, Jesse; Perakis, Steven (2012-11-20)

Disturbances—discrete events that reduce plant biomass—commonly regulate material and energy flow in terrestrial ecosystems. Recent studies document an increase in the size and/or severity of disturbances such as native ...
Reconstruction of Holocene foreland progradation using optically stimulated luminescence (OSL) dating: an example from Dungeness, UK

Roberts, Helen M.; Plater, A. J. (2007-05)

Dungeness Foreland, southeast UK, is comprised of a series of distinctive gravel ridges overlying sub- and intertidal sands. The successful application of optically stimulated luminescence (OSL) to the Holocene sub- and ...
A record of Holocene climate change in the Guanzhong Basin, China, based on optical dating of a loess-palaeosol sequence

Xia, D. S.; Li, S. H.; Zhao, H.; Chen, F. H.; Wintle, Ann G.; Fan, Y. X. (2007-11)

Optical dating was used to obtain a chronology for a loess-palaeosol sequence in the Guanzhong Basin on the Loess Plateau in China. The sedimentary sequence recorded two dry episodes (3.7 similar to 2.4 ka and 1.2 similar ...
Recuperated OSL dating of fine-grained quartz in Chinese loess

Wang, X. L.; Wintle, Ann G.; Lu, Y. C. (2006-05)

The thermally transferred optically stimulated luminescence (OSL) signal from fine-grained quartz extracted from Chinese loess can be separated into two components, the recuperated and the basic transferred OSL signal. The ...
Re-evaluation of the chronology of the palaeolithic site at Jeongokri, Korea, using OSL and TT-OSL signals from quartz

Kim, J. C.; Duller, Geoff A. T.; Roberts, Helen M.; Wintle, Ann G.; Lee, Y. I.; Yi, S. B. (2010-06-01)

Seven samples were collected from sediments at the Palaeolithic site of Jeongokri, Korea, known for the first discovery of Acheulian-like handaxes in East Asia. Optically stimulated luminescence (OSL) ages obtained from ...
Response of chironomids to late Pleistocene and Holocene environmental change in the eastern Bolivian Andes

Williams, Joseph J.; Brooks, Stephen J.; Gosling, William D. (2012-10-01)

We present the first palaeolimnological investigation of chironomid larval assemblages from the Bolivian Eastern Cordillera. Taxonomic diagnoses are provided for the 10 chironomid taxa (subfamilies: Chironominae, Orthocladiinae ...
Retrieving forest biomass through integration of CASI and LiDAR data

Bunting, Peter J.; Lee, A. C.; Lucas, Richard M. (2008-03-01)

To increase understanding of forest carbon cycles and stocks, estimates of total and component (e.g. leaf, branch and trunk) biomass at a range of scales are desirable. Focusing on mixed species forests in central south-east ...
A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols

Murray, A. S.; Wintle, Ann G. (2006-04)

Different single-aliquot regenerative-dose (SAR) protocols have now been applied for some years to quartz grains for determining the equivalent dose, in both dating and retrospective dosimetry studies. This paper begins ...
A review of the thermally transferred optically stimulated luminescence signal from quartz for dating sediments

Duller, G. A. T.; Wintle, A. G. (2012-02)

Luminescence dating 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. ...
Rule-based classification of multi-temporal satellite imagery for habitat and agricultural land cover mapping

Bunting, Peter J.; Brown, Alan; Lucas, Richard M.; Rowlands, A. P. (2007-08)

Aim: To evaluate the use of time-series of Landsat sensor data acquired over an annual cycle for mapping semi-natural habitats and agricultural land cover. Location: Berwyn Mountains, North Wales, United Kingdom. Methods: ...
Sedimentology, palaeoecology and geochronology of Marine Isotope Stage 5 deposits on the Shetland Islands, Scotland

Duller, Geoff A. T.; Whittington, G.; Heijns, H.; Hall, Adrian M.; Gordon, J. E. (2002-01-01)

New stratigraphical, palynological and dating evidence is presented for pre-Late Devensian/Weichselian sediments at Fugla Ness and Sel Ayre, Shetland. The Fugla Ness Peat rests on till and formed during an interglacial ...
A simplified SAR protocol for TT-OSL

Porat, N.; Duller, Geoff A. T.; Roberts, Helen M.; Wintle, Ann G. (2009-05-01)

A new single-aliquot regenerative-dose (SAR) protocol for measuring the equivalent dose using the thermally-transferred OSL (TT-OSL) signal is proposed. Characterisation of the Basic Transferred OSL (BT-OSL) signal measured ...
Simulations of the effect of pulse-annealing on the optically stimulated luminescence of quartz

Wintle, Ann G.; Chen, Reuven; Pagonis, Vasilis (2007-09-17)

Pulse annealing techniques are commonly used in OSL studies of quartz to obtain information on the kinetic parameters of OSL traps and hole reservoirs. In this paper, simulations of pulse annealing experiments are carried ...
Single grain optical dating of glacigenic deposits

Duller, Geoff A. T. (2006-12)

Determining the age of glacigenic sediments is difficult for many geochronological methods because of the lack of suitable materials for analysis. Luminescence dating can be applied to the mineral grains making up the ...

Now showing items 156-175 of 201

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