School of Environment
Sedimentology and Particle Analysis
Analytical and Preparation Facilities
Malvern Mastersizer 2000 Laser Diffraction Particle Analyser with Hydro G Dispersion Unit
Measures particle size between 0.02 and 2000 micron. Ideal for studying sediments from clay to sand size. Only small sample volumes usually required (a few grams) which can be introduced wet or dry into the Hydro G wet dispersion unit. Some preparation may be necessary depending on the application.
Can be operated independently with a little training.
Rapid Settling Analyser (RSA)
A 1.75m settling tube which measures particle settling over time which can be calculated to a settling velocity distribution and a size distribution using Gibbs equation. An MS Excel based programme (SedRep) has been developed in-house to provide fully calculated, tabulated and graphical output of results. Best used for sand sized fractions from 63 to 2000 micron but has been used for fine gravel size ranges. Sample sizes of approximately 2 tablespoons (wet or dry) are required - no preweighing necessary.
Sieve Analysis
We have many test sieves available, mostly in the 63 micron (4 phi) to 16mm (-4 phi) size fractions, two dry sieve shakers, one wet sieve shaker, as well as all the associated facilities needed for washing, drying, and weighing.
Bartington MS2 magnetic susceptibility system
We have a Bartington MS2 meter with a comprehensive array of magnetic susceptibility sensors, including;
- MS2B dual frequency sensor (for 10ml sediment or rock samples)
- MS2C core scanner (for 60mm diameter cores)
- MS2E core logging sensor (for high resolution measurements of cores)
- MS2F surface point probe and handle for field point measurements
Elecfurn muffle furnace ("Spartacus")
A fully programmable 38L muffle furnace with heating up to 1100oC. Mainly used for Loss on Ignition (LoI) analysis of sediment samples.
Frantz Magnetic Separators
We have 2 units (L-1 and LB-1) which are used to separate and sort dry granular materials according to their magnetic susceptibility.