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The Plummer 3-dimensional density profile is given by = (+) /, where is the total mass of the cluster, and a is the Plummer radius, a scale parameter that sets the size of the cluster core. The corresponding potential is Φ P ( r ) = − G M 0 r 2 + a 2 , {\displaystyle \Phi _{P}(r)=-{\frac {GM_{0}}{\sqrt {r^{2}+a^{2}}}},} where G is Newton 's ...
John J. "Jack" Renton (1933 – February 28, 2020) [1] was a professor of geology at West Virginia University, known for the quality of the teaching in his introductory geology courses [2] and in the video version of the course, Nature of Earth. [3]
Geologist – Scientist who studies geology; Geology – Scientific study of Earth's physical composition; Geology of the Alps – The formation and structure of the European Alps; Geomorphology – Scientific study of landforms; Geostatistics – Branch of statistics focusing on spatial data sets; Geyser – Natural explosive eruption of hot water
In geology, numerical modeling is a widely applied technique to tackle complex geological problems by computational simulation of geological scenarios. Numerical modeling uses mathematical models to describe the physical conditions of geological scenarios using numbers and equations. [ 2 ]
Though initially thought to be a constant, recent work has shown that the entrainment coefficient varies with the local Richardson number. [9] Typical values for the entrainment coefficient are of about 0.08 for vertical jets and 0.12 for vertical, buoyant plumes while for bent-over plumes, the entrainment coefficient is about 0.6.
Petrophysics (from the Greek πέτρα, petra, "rock" and φύσις, physis, "nature") is the study of physical and chemical rock properties and their interactions with fluids. [1] A major application of petrophysics is in studying reservoirs for the hydrocarbon industry.
Geothermobarometry relies upon understanding the temperature and pressure of the formation of minerals within rocks. [1] There are several methods of measuring the temperature or pressure of mineral formation or re-equilibration relying for example on chemical equilibrium between minerals [1] [2] [3] or by measuring the chemical composition [4] [5] and/or the crystal-chemical state of order [6 ...
Structural geology is the study of the three-dimensional distribution of rock units with respect to their deformational histories. The primary goal of structural geology is to use measurements of present-day rock geometries to uncover information about the history of deformation ( strain ) in the rocks, and ultimately, to understand the stress ...