LEADER 05083oam 2200685I 450 001 9910966907103321 005 20251116194456.0 010 $a1-315-84554-7 010 $a1-317-89818-4 024 7 $a10.4324/9781315845548 035 $a(CKB)2550000001194356 035 $a(EBL)1602058 035 $a(SSID)ssj0001108916 035 $a(PQKBManifestationID)12441289 035 $a(PQKBTitleCode)TC0001108916 035 $a(PQKBWorkID)11104318 035 $a(PQKB)11671118 035 $a(OCoLC)874153556 035 $a(MiAaPQ)EBC1602058 035 $a(Au-PeEL)EBL1602058 035 $a(CaPaEBR)ebr10830652 035 $a(CaONFJC)MIL569825 035 $a(OCoLC)869095584 035 $a(OCoLC)897463951 035 $a(EXLCZ)992550000001194356 100 $a20180706e20131993 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aUsing geochemical data $eevaluation, presentation, interpretation /$fHugh R. Rollinson 205 $a1st ed. 210 1$aMilton Park, Abingdon, Oxon :$cRoutledge,$d2013. 215 $a1 online resource (787 p.) 225 0 $aGeochemistry series 300 $aFirst published 1993 by Pearson Education Limited. 311 08$a1-138-83699-0 311 08$a0-582-06701-4 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $aCover; Half Title; Title Page; Copyright Page; Dedication; Table of Contents; Preface; Acknowledgements; Glossary; G.1 Abbreviations of mineral names used in the text; G.2 Other abbreviations and symbols used in the text; 1. Geochemical data; 1.1 Introduction; 1.2 Geological processes and their geochemical signatures; 1.2.1 Processes which control the chemical composition of igneous rocks; 1.2.2 Processes which control the chemical composition of sedimentary rocks; 1.2.3 Processes which control the chemical composition of metamorphic rocks; 1.3 Geological controls on geochemical data 327 $a1.4 Analytical methods in geochemistry1.4.1 X-ray fluorescence (XRF); 1.4.2 Neutron activation analysis (INAA and RNAA); 1.4.3 Inductively coupled plasma emission spectrometry (ICP); 1.4.4 Atomic absorption spectrophotometry (AAS); 1.4.5 Mass spectrometry; Isotope dilution mass spectrometry (IDMS); Inductively coupled plasma emission mass spectrometry (ICP-MS); Spark source mass spectrometry (SSMS); 1.4.6 Electron microprobe analysis; 1.4.7 The ion microprobe; 1.5 Selecting an appropriate analytical technique; 1.6 Sources of error in geochemical analysis; 1.6.1 Contamination 327 $a1.6.2 Calibration1.6.3 Peak overlap; 1.6.4 Detecting errors in geochemical data; 2. Analysing geochemical data; 2.1 Introduction; 2.2 Averages; 2.3 Correlation; 2.3.1 The correlation coefficient; 2.3.2 The significance of the correlation coefficient (r); 2.3.3 Assumptions in the calculation of the product-moment coefficient of correlation; 2.3.4 Spearman rank correlation; 2.3.5 Correlation matrices; 2.3.6 Correlation coefficient patterns; 2.4 Regression; 2.4.1 Ordinary least squares regression; 2.4.2 Reduced major axis regression; 2.4.3 Weighted least squares regression 327 $a2.4.4 Robust regression2.4.5 Some problems with traditional approaches to correlation and regression; 2.5 Ratio correlation; 2.5.1 An example of the improper use of ratio correlation - Pearce element ratio diagrams; 2.5.2 Application to trace element diagrams; 2.5.3 Ratio correlation in isotope geology; 2.6 The constant sum problem; 2.6.1 The consequences of closure; Correlating compositional data; The means of compositional data-sets; Invalid escape routes; 2.6.2 Aitchison's solution to the constant sum effect; An example - basalts from Kilauea Iki lava lake, Hawaii 327 $aThe interpretation of log-ratios2.7 The interpretation of trends on triangular diagrams; 2.8 Principal component analysis; 2.9 Discriminant analysis; 2.9.1 An example from igneous petrology; 2.9.2 Other applications of discriminant analysis; 2.10 Whither geochemical data analysis?; 3. Using major element data; 3.1 Introduction; 3.2 Rock classification; 3.2.1 Classifying igneous rocks using oxide-oxide plots; The total alkalis-silica diagram (TAS); (a) Using TAS with volcanic rocks; (b) A TAS diagram for plutonic rocks 327 $a(c) Discrimination between the alkaline and subalkaline rock series using TAS 330 $aUsing Geochemical Data brings together in one volume a wide range of ideas and methods currently used in geochemistry, providing a foundation of knowledge from which the reader can interpret, evaluate and present geochemical data. 410 0$aLongman Geochemistry Series 606 $aGeochemistry 615 0$aGeochemistry. 676 $a551.9 676 $a551.9 700 $aRollinson$b Hugh R$g(Hugh Richard),$f1949-$0879661 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910966907103321 996 $aUsing geochemical data$94474797 997 $aUNINA