Search Results for "using-geochemical-data"

Using Geochemical Data

Using Geochemical Data

Evaluation, Presentation, Interpretation

  • Author: Hugh R. Rollinson
  • Publisher: Routledge
  • ISBN: 1317898184
  • Category: Science
  • Page: 384
  • View: 9025
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Using 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.

Drift Exploration in Glaciated Terrain

Drift Exploration in Glaciated Terrain

  • Author: Margaret Beth McClenaghan
  • Publisher: Geological Society of London
  • ISBN: 9781862390829
  • Category: Science
  • Page: 350
  • View: 699
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This volume describes the use of till geochemical and indicator mineral methods for mineral exploration in the glaciated terrain of Canada. The principles and examples described in this volume will have direct applications for exploration companies looking for diamonds, precious and base metals and uranium in glaciated parts of North America, northern Europe and Asia and mountainous regions of South America.

Nairi Lands

Nairi Lands

The Identity of the Local Communities of Eastern Anatolia, South Caucasus and Periphery During the Late Bronze and Early Iron Age. A Reassessment of the Material Culture and the Socio-Economic Landscape

  • Author: Guido Guarducci
  • Publisher: Oxbow Books
  • ISBN: 1789252792
  • Category: History
  • Page: 288
  • View: 3783
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This study analyses the social and symbolic value of the material culture, in particular the pottery production and the architecture, and the social structure of the local communities of a broad area encompassing Eastern Anatolia, the South Caucasus and North-western Iran during the last phase of the Late Bronze Age and the Early Iron Age. This broad area is known from the Assyrian texts as ‘Nairi lands’. The second part of the study, furnishes a reassessment of pottery production characteristics and theories, as well as of the socio-economic structure and issues, tied to the sedentary and mobile local communities of the Nairi lands. The study brings into focus the characteristics, the extension and the distribution of Grooved pottery, along with other pottery typologies, by providing an accompanying online catalogue with detailed descriptions and high-resolution images of the pots and sherds obtained from public and private institutions in Turkey and Armenia. Moreover, the socio-political organisation and subsistence economy issues are addressed in order to advance a possible reconstruction of the social structure of the Nairi lands communities. Particular attention is devoted to the pastoral nomad component and the role played within the Nairi phenomenon. The study includes a very large corpus of text images and high-resolution color images of the pottery of the area under examination, gathered by the author in order to offer a reliable tool and compendium.

Road from Geochemistry to Geochemometrics

Road from Geochemistry to Geochemometrics

  • Author: Surendra P. Verma
  • Publisher: Springer
  • ISBN: 9811392781
  • Category: Science
  • Page: 669
  • View: 8843
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This book highlights major problems in the statistical analysis of compositions that have been known for over a century, as well as the corresponding solutions that have been put forward by specialists over the past 30 years. The basic assumptions of normality or multi-normality are pointed out and methods to test and achieve them are also covered. The conventional major and trace element geochemistry and modeling equations are discussed, and are followed by a more sophisticated multidimensional approach to data handling. The book’s main focus is on the use of statistical techniques to facilitate data interpretation. It also highlights the classification (or nomenclature) and tectonic discrimination aspects for both igneous and sedimentary rocks. The book concludes by discussing computer programs that are helping pave the way from geochemistry to geochemometrics. Written by a leading expert in the area of geochemistry, it offers a valuable guide for students and professionals in the area.

Geochemical Modelling of Igneous Processes – Principles And Recipes in R Language

Geochemical Modelling of Igneous Processes – Principles And Recipes in R Language

Bringing the Power of R to a Geochemical Community

  • Author: Vojtěch Janoušek,Jean-François Moyen,Hervé Martin,Vojtěch Erban,Colin Farrow
  • Publisher: Springer
  • ISBN: 3662467925
  • Category: Science
  • Page: 346
  • View: 5435
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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.

Geological Evolution of Ocean Basins

Geological Evolution of Ocean Basins

Results from the Ocean Drilling Program

  • Author: Adrian Cramp
  • Publisher: Geological Society of London
  • ISBN: 9781862390034
  • Category: Science
  • Page: 323
  • View: 4799
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Advances in the field of marine geoscience through the medium of deep-ocean drilling have been rapid and continue to be so. Part of this text reflects the results of findings from recent legs of the Ocean Drilling Programme. Other parts provide syntheses of the volume of drilling information collected over a period of more than 20 years, which provide a detailed picture of how oceans have evolved since the late Mesozoic. The book should be of interest to marine geologists, sedimentologists, palaeoceanographers and structural geologists.

Exploration-Geochemical Data Analysis with the IBM PC

Exploration-Geochemical Data Analysis with the IBM PC

  • Author: G.S. Koch
  • Publisher: Springer Science & Business Media
  • ISBN: 1461319730
  • Category: Science
  • Page: 179
  • View: 8624
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Here is another contribution in the continuing series on Computer Methods in the Geosciences. As its title suggests, this volume will be of interest to explorational geochemists who want to analyze their own data on a personal computer (PC). To make it easy for the user, the programs and two trial data sets are provided on the accompanying diskettes. And, by supplying the diskettes, another first is accom plished for the series: instant involvement and interaction for the user. Although other books in the series have provided listings of computer pro grams, Exploration-Geochemical Data Analysis with the IBM PC is the first to supply diskettes. The diskettes, along with the instructions outlined in the text, eliminate the bother (and errors) of pu tting the programs in man ually. The suite of programs for handling and sorting data files; computing and displaying summary statistics; and working with logarithms, geochemical thresholds, and regression - will give geochemists a good repertoire for geochemical exploration data analysis. The diskettes are easy to use and have been tested thoroughly.

Early Precambrian Basic Magmatism

Early Precambrian Basic Magmatism

  • Author: R.P. Hall,D.J. Hughes
  • Publisher: Springer Science & Business Media
  • ISBN: 9400903995
  • Category: Science
  • Page: 496
  • View: 8193
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Basic magmatic rocks make up approximately three-quarters of the crust ofthe present day Earth. Because we can observe and study the volcanic products of present day tectonic regimes comprehensively, we can shed light on ancient tectono-magmatic provinces, and thereby deduce the petrogenesis and evolution of the oldest basic rocks. This is the primary objective of this book. The book was conceived in order to provide a comprehensive review of the basic rocks produced during the first half of the Precambrian, i.e. the Archaean and early Proterozoic, to about 1.8 Ga years ago. Two major questions are addressed. First, what basic magmas were generated during the early Precambrian: were these magmas globally uniform, and to what extent were prevailing tectonic controls and compo sitions analogous to those of the present day? Clearly, this can be answered only by bringing together fundamental information about all relevant basic magmatic events. Second, is there any systematic temporal variation in the nature of basic suites, and what implications might such variations have on our interpretations of early Earth history? Are there important differences between early Archaean, late Archaean, Proterozoic and modern basic magmatic suites? The book uses two approaches to address these questions. Early chapters examine the fundamental characteristics of these basic rocks, whilst later chapters assess regional distribution and development by providing an overview of each major early Precambrian craton.