Sediment fingerprints: A forensic technique using quartz sand grains — A response

Sediment fingerprints: a forensic technique using quartz sand grains--a comment.

The analyses of 738 soil and sediment samples taken during the investigation of 20 forensic cases are combined in a database for retrospective comparisons. Quartz sand grain surface textures are combined into grain types which are analysed at one of five orders of classification. This classification also provides frequency data on the number of grain types found in a sample, the individuality o...

Preprint . Final version appears as : Bull , P . & Morgan , R . ( 2007 ) Sediment Fingerprints : A forensic technique using quartz sand grains

Some Observations on Electron Micrographs of Quartz Sand Grains

Electron micrographs of sand grains from southern Piedmont saprolites, temperate and polar glacial deposits, and the St. Peter Sandstone are presented. Sand-grain surface features of saprolite grains are described for the first time and from these some concept of the initial surface of a quartz sand grain is obtained. Micrographs of the sand grains from glacial deposits whose erosional history ...

Aerosol Filtration Using Quartz Sand Filter

The cement industry is the major source of cement dust which contains heavy metals like nickel, cobalt, lead, chromium, arsenic and hazardous substances like dioxins and furans. Exposure to these substances can cause health problems to human, animals and vegetation. A continuous pilot scale quartz sand filter was constructed and uses to study the effect of important design parameters (temperatu...

Dose response curve of the ESR signal of the Aluminum center in quartz grains extracted from sediment

A single saturating exponential (SSE) function is classically used in ESR dating to fit the experimental ESR data points derived from the aluminum (Al) center in quartz. However, this function has some obvious limits as it does not accurately fit the data points of the dose response curve. This results in unreliable equivalent dose (DE) values which are highly dependent on the maximum irradiati...