The aim of this book is to unlock the power of the freeware R language to advanced university students and researchers dealing with whole-rock geochemistry of (meta-) igneous rocks. The first part covers data input/output, calculation of commonly used indexes and plotting in R. The core of the book then focusses on the presentation and practical implementations of modelling techniques used for fingerprinting processes such as partial melting, fractional crystallization, binary mixing or AFC using major-, trace-element and radiogenic isotope data. The reader will be given a firm theoretical basis for forward/reverse modelling, followed by exercises dealing with typical problems likely to be encountered in real life, and their solutions using R. The concluding sections demonstrate, using practical examples, how a researcher can proceed in developing a realistic model simulating natural systems. The appendices outline the fundamentals of the R language and provide a quick introduction to the open-source R-package GCDkit for interpretation of whole-rock geochemical data from igneous and metamorphic rocks.
Author(s): Vojtěch Janoušek, Jean-François Moyen, Hervé Martin, Vojtěch Erban, Colin Farrow (auth.)
Series: Springer Geochemistry
Edition: 1
Publisher: Springer-Verlag Berlin Heidelberg
Year: 2016
Language: English
Pages: XXVIII, 346
Tags: Geochemistry; Simulation and Modeling; Geoecology/Natural Processes
Front Matter....Pages i-xxviii
Introduction....Pages 1-7
Front Matter....Pages 9-9
Data Manipulation and Simple Calculations....Pages 11-25
Classical Plots....Pages 27-43
Specialized Plots....Pages 45-51
Radiogenic Isotopes....Pages 53-66
Front Matter....Pages 67-67
Direct Models....Pages 69-80
Reverse Models....Pages 81-83
Forward Modelling in R....Pages 85-92
Reverse Modelling in R....Pages 93-97
Front Matter....Pages 99-100
Dilute Trace Elements: Partition Coefficients....Pages 101-104
Direct (dilute) Trace-Element Models....Pages 105-124
Reverse (dilute) Trace-Element Models....Pages 125-128
Trace Elements as Essential Structural Constituents of Accessory Minerals: The Solubility Concept....Pages 129-140
Forward Modelling in R....Pages 141-152
Reverse Modelling in R....Pages 153-155
Front Matter....Pages 157-157
Direct Models....Pages 159-166
Reverse Models....Pages 167-168
Forward Modelling in R....Pages 169-174
Reverse Modelling in R....Pages 175-177
Front Matter....Pages 179-180
Choosing an Appropriate Model....Pages 181-189
Front Matter....Pages 179-180
Semi-Quantitative Geochemical Approach....Pages 191-204
Constraining a Model....Pages 205-223
Numerical Tips and Tricks....Pages 225-229
Common Sense in Action....Pages 231-241
Front Matter....Pages 243-243
Differentiation of a Calc-Alkaline Volcanic Series: Example of the Atacazo-Ninahuilca Volcanoes, Ecuador....Pages 245-260
Progressive Melting of a Metasedimentary Sequence: the Saint-Malo Migmatitic Complex, France....Pages 261-275
Back Matter....Pages 277-346
