Definitions for "Core Sample"
A sample of rock, ice, snow, soil or sediment obtained by driving a hollow tube into the undisturbed medium and withdrawing it with its contained sample or core.
Cylindrical core retrieved from a hollow steel pipe that is drilled into rock or sediment and brought to the surface for study.
n: 1. a small portion of a formation obtained by using a core barrel and core bit in an existing wellbore. See core bit. 2. a spot sample of the contents of an oil or oil product storage tank usually obtained with a thief, or core sampler, at a given height in the tank.
an accurate way of measuring water equivalent only if snow or sleet falls with a temperature below freezing for the entire precipitation period
Keywords:  laboratory, beam, taken, studied, wood
a small piece of material removed from a large object so that it can be studied and dated in a laboratory, for example a piece of wood taken from a beam in a house