Search Results - "Cresswell, R.G."

Cosmogenic Chlorine-36 Production in Calcite by Muons by Stone, J.O.H., Evans, J.M., Fifield, L.K., Allan, G.L., Cresswell, R.G.

“…At depths below a few metres, 36Cl production in calcite is initiated almost entirely by cosmic ray muons. The principal reactions are (1) direct negative muon…”
Get full text

Accelerator mass spectrometry of plutonium isotopes by Fifield, L.K., Cresswell, R.G., di Tada, M.L., Ophel, T.R., Day, J.P., Clacher, A.P., King, S.J., Priest, N.D.

“…The feasibility of measuring plutonium isotope ratios by accelerator mass spectrometry has been demonstrated. Measurements on a test sample of known…”
Get full text

Three-dimensional mapping of salt stores in the southeast Murray-Darling Basin, Australia. 1. Steps in calibration of airborne electromagnetic surveys by Cresswell, R.G, Dent, D.L, Jones, G.L, Galloway, D.S

“…An airborne electromagnetic survey yields a three-dimensional map of ground electrical conductivity. The remotely sensed data are translated into salt load by…”
Get full text

Accelerator mass spectrometry of the planetary elements by Fifield, L.K., Clacher, A.P., Morris, K., King, S.J., Cresswell, R.G., Day, J.P., Livens, F.R.

“…Accelerator mass spectrometry has been applied for the first time to the detection of 237Np. Sensitivity approaches 105 atoms. A first measurement of the…”
Get full text

Ancient groundwaters in the Amadeus Basin, Central Australia: evidence from the radio-isotope 36Cl by Cresswell, R.G., Jacobson, G., Wischusen, J., Keith Fifield, L.

“…We report 36Cl determinations for groundwaters in the major confined aquifer, the Mereenie Sandstone, in the Amadeus Basin, in arid central Australia…”
Get full text

Kinetics of uptake and elimination of silicic acid by a human subject: A novel application of 32Si and accelerator mass spectrometry by Popplewell, J.F, King, S.J, Day, J.P, Ackrill, P, Fifield, L.K, Cresswell, R.G, di Tada, M.L, Liu, Kexin

“…Silicon is possibly important in human physiology in protecting against the toxic effects of aluminium, but the kinetics of uptake and excretion of silicic…”
Get full text

Cosmogenic chlorine-36 from calcium spallation by Stone, J.O., Allan, G.L., Fifield, L.K., Cresswell, R.G.

“…Calcium is a major target element for cosmogenic 36Cl production. Consequently 36Cl rapidly reaches detectable levels in minerals such as calcite and calcium…”
Get full text

High resolution Cl − and 36Cl profiles: Physiochemical mechanisms in the unsaturated zone by Lenahan, M.J., Kirste, D.M., Cresswell, R.G., Mcphail, D.C., Fifield, L.K.

Get full text

Some possible evolutionary scenarios suggested by 36Cl measurements in Guarani aquifer groundwaters by Cresswell, R.G., Bonotto, D.M.

“…The Guarani aquifer underlies 1.2 M km 2 in the Paraná sedimentary basin of South America and is an important source of water for industry, agriculture, and…”
Get full text

Hydrogeochemistry of Hodgson Creek catchment, Queensland Murray-Darling Basin by Cresswell, R.G., Silburn, M., Biggs, A., Rassam, D., McNeil, V.

Get full text

A participatory modelling approach to define farm-scale effects of reclaimed wastewater irrigation in the Lockyer Valley, Australia by van Opstal, Jonna D., Huibers, Frans P., Cresswell, Richard G.

“…The Lockyer Valley is an important agricultural area experiencing water insecurity, which causes a decrease in agricultural production. Regional authorities…”
Get full text

Three-dimensional mapping of salt stores in the southeast Murray-Darling Basin, Australia by Cresswell, R.G., Dent, D.L., Jones, G.L., Galloway, D.S.

“… An airborne electromagnetic survey yields a three‐dimensional map of ground electrical conductivity. The remotely sensed data are translated into salt load…”
Get full text

Three‐dimensional mapping of salt stores in the southeast Murray–Darling Basin, Australia: 1. Steps in calibration of airborne electromagnetic surveys by Cresswell, R.G., Dent, D.L., Jones, G.L., Galloway, D.S.

“…An airborne electromagnetic survey yields a three‐dimensional map of ground electrical conductivity. The remotely sensed data are translated into salt load by…”
Get full text

Hydrogeology of Palm Valley, central Australia; a Pleistocene flora refuge? by Wischusen, John D.H., Fifield, L.Keith, Cresswell, Richard G.

“…The Palm Valley Oasis (Finke Gorge National Park) in arid central Australia is characterised by large stands of red cabbage palm trees ( Livistona mariae). How…”
Get full text

Airborne electromagnetics supporting salinity and natural resource management decisions at the field scale in Australia by Cresswell, R.G, Mullen, I.C, Kingham, R, Kellett, J, Dent, D.L, Jones, G.L

“…Airborne geophysics has been used at the catchment scale to map salt stores, conduits and soil variability, but few studies have evaluated its usefulness as a…”
Get full text

Three-dimensional mapping of salt load in the Murray-Darling Basin, 1 Steps in calibration of airborne electromagnetic surveys by Cresswell, R.G, Dent, D.L, Jones, G, Galloway, D

“…An airborne electromagnetic survey yields a three-dimensional map of ground electrical conductivity. The remotely sensed data are translated into salt load by…”
Get full text

Cosmogenic chlorine-36 production in K-feldspar by Evans, J.M., Stone, J.O.H., Fifield, L.K., Cresswell, R.G.

“…The high production rate of in-situ cosmogenic 36Cl from potassium allows K-rich minerals to be dated with high sensitivity and precision. K-rich minerals,…”
Get full text

Accelerator mass spectrometry of 99Tc by Fifield, L.K., Carling, R.S., Cresswell, R.G., Hausladen, P.A., di Tada, M.L., Day, J.P.

“…The measurement of low levels of 99Tc (T 1/2=213 ka) by accelerator mass spectrometry (AMS) is reported for the first time. Because there are no stable…”
Get full text

14C AMS dating of fires in the central Amazon rain forest by Santos, G.M, Gomes, P.R.S, Anjos, R.M, Cordeiro, R.C, Turcq, B.J, Sifeddine, A, di Tada, M.L, Cresswell, R.G, Fifield, L.K

“…Soil samples were collected in tierra firme upland and lowland areas of the Km 41 reserve near Manaus (20°30′S and 60°W), in Central Brazilian Amazon, within a…”
Get full text

The Brazilian Bragg curve detector built for AMS studies by Santos, G.M, Acquadro, J.C, Gomes, P.R.S, Anjos, R.M, Liguori Neto, R, Added, N, Medina, N.H, Carlin, N, Coimbra, M.M, di Tada, M.L, Cresswell, R.G, Fifield, L.K

“…A Bragg curve detector (BCD) has been designed and built to be used for AMS purposes. Its design is described and its performance, obtained in tests at the…”
Get full text