vertical stacking In seismic investigations, the technique in which the signal-to-noise ratio is enhanced by summing the signals for a number of shots into one set of geophones or hydrophones at one offset. It is used extensively in land seismic-re-fraction surveys, using signal-enhancement seismographs which can sum up to 255 shots (e.g. hammer blows, weight-drops, etc.) to produce a good-quality seismic record, but is of limited value in marine work, where common-depth-point stacks are preferred.
More From encyclopedia.com
Vertisols , Vertisols Mineral soils, an order of soils that contain more than 30 per cent by weight swelling clay (e.g. montmorillonite), and that expand when we… Lingulida , Skip to main content Lingulida Lingulida (class Inarticulata) Order of Brachiopoda, with valves usually of calcium phosphate with some layers of orga… Radial Symmetry , Skip to main content radial symmetry radial symmetry The arrangement of parts in an organ or organism such that cutting through the centre of the str… Alum , alum (ăl´əm), any one of a series of isomorphous double salts that are hydrated sulfates of a univalent cation (e.g., potassium, sodium, ammonium, ce… Shellfish , shellfish A wide range of marine molluscs (abalone, clams, cockles, mussels, scallops, oysters, whelks, winkles) and crustacea (members of the zoolog… Hepatocyte , Skip to main content hepatocyte
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like