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Gresens' equation

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Journal Article
Journal: Economic Geology
Published: 01 December 1986
Economic Geology (1986) 81 (8): 1976–1982.
...James A. Grant Abstract Gresens' (1967) method of analysis of changes in volume and concentrations during metasomatism have been applied in many studies of hydrothermal alteration. This paper provides a simple method of solution of Gresens' equations, for both volume (or mass) change...
Journal Article
Published: 16 June 2020
Geochemistry: Exploration, Environment, Analysis (2020) 20 (4): 425–439.
... listwaenites from Tavreh were assessed relative to the least altered serpentinites. To illustrate these changes quantitatively a comparative analysis of three different methods of calculating mass change was undertaken using Grant's isocon analysis, MacLean's equation and Gresensequation. Results from...
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Image
Figure 7. Normalized  <span class="search-highlight">Gresen&#x27;s</span> plots (e.g., <span class="search-highlight">Gresen</span>, 1967 ;  Potdevin and Ma...
Published: 01 January 2000
Figure 7. Normalized Gresen's plots (e.g., Gresen, 1967 ; Potdevin and Marquer, 1987 ) displaying volume-composition relationships. We use an equation of the form ΔXn = Fv(δII/δI)(CnII/CnI) − 1; whereby ΔXn represents the percentage of variation related to the host rock composition, Fv
Journal Article
Journal: Economic Geology
Published: 01 August 2007
Economic Geology (2007) 102 (5): 923–948.
... for identifying these patterns and for evaluating attendant hydrothermal mineral zonation. Whole-rock geochemical anomalies are evaluated by calculating mass changes associated with hydrothermal alteration, using a modified version of Gresens’ (1967) equation to compare the composition of altered rocks to fresh...
FIGURES | View All (13)