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Interpreting gravity measurements (view source)
Revision as of 15:28, 10 March 2016
, 15:28, 10 March 2016no edit summary
==Rock densities==
==Rock densities==
The range of densities for all rock types (igneous, metamorphic, and sedimentary) is typically 1.60–3.20 g/cm<sup>3</sup>. The density values of sedimentary rocks typically range from 1.80 to 2.80 g/cm<sup>3</sup>. Thus, small variations of density in sedimentary rocks may be invisible to the method. A5–10% error in estimating subsurface densities from gravity is quite common. This is in contrast to [[magnetics]], where typically there are orders of magnitude variations in susceptibilities.
The range of densities for all rock types ([[igneous]], metamorphic, and sedimentary) is typically 1.60–3.20 g/cm<sup>3</sup>. The density values of sedimentary rocks typically range from 1.80 to 2.80 g/cm<sup>3</sup>. Thus, small variations of density in sedimentary rocks may be invisible to the method. A5–10% error in estimating subsurface densities from gravity is quite common. This is in contrast to [[magnetics]], where typically there are orders of magnitude variations in susceptibilities.
==Horizontal layers==
==Horizontal layers==