sampling methods
sampling methods Techniques for collecting representative sub-volumes from a large volume of geologic material. The particular sampling method employed depends on the nature of the material being sampled and the kind of information required. Common methods are: (a) random sampling, a non-systematic or haphazard distribution of sampling locations; (b) systematic sampling, a regularly spaced distribution of sampling locations; (c) stratified sampling, a sequentially spaced, vertical distribution of sampling locations based on sampling each stratigraphic unit in a succession; (d) grab sampling, the collection of material using an externally controlled, mechanical grab (a method often used when sampling the sea floor or the surface of another planet); and (e) chip sampling, the collection of borehole drilling chips that are carried to the surface by lubricating mud and are representative of the material traversed by the borehole.
More From encyclopedia.com
Diurnal Curve Method , diurnal curve method Method , meth·od / ˈme[unvoicedth]əd/ • n. (often method for/of) a particular form of procedure for accomplishing or approaching something, esp. a systematic… Nearest-neighbour Sampling Method , Skip to main content
nearest-neighbour sampling method ordination method , ordination method A method for arranging individuals (or sometimes attributes) in order along one or more lines. The method is used, with many techni… Statistical Method , statistical method In modern usage, a method for analysing data based on probability theory. A statistical method permits the calculation of a value… Aerodynamic Method , aerodynamic method A method for monitoring rates of primary productivity; it is particularly useful in studies of woodland or forest communities. The…
You Might Also Like
NEARBY TERMS
sampling methods