This note covers all aspects of molecular biosignatures, such as their pathways of lipid biosynthesis, the distribution patterns of lipid biosynthetic pathways with regard to phylogeny and physiology, isotopic contents, occurrence in modern organisms and environments, diagenetic pathways, analytical techniques and the occurrence of molecular fossils through the geological record.
Author(s): Prof. Roger Summons, Dr. Florence Schubotz, Dr. Julio Sepulveda and Dr. Paula Welander
NAPages
This note explains the following topics: Nucleosynthesis and elemental abundances, Chemistry of the Earth, Bonding and Substitution, Thermobarometry, Acids and Bases, Solubility product and ion activity product, Acids and Bases, Solubility of salts and hydrolysis, Ionic strength and the Dubye-Huckel theory relating activity to concentration, Thermodynamics, Mineral stability diagrams and chemical weathering of feldspars, Redox reactions, U-Pb dating and data analysis using Isoplot, Stable isotopes, Trace and rare earth element.
Author(s): San Francisco State University
NAPages
This note descries the following topics: Chemical kinetics, Fast chemical reactions, Gibss free energy minimization, Coexistence of slow and fast chemical reactions, Methods to reduce the chemical problem, Considered chemical reactions Problem setting, Numerical results.
Author(s): Alfredo Bermudez de Castro and Luz M. Garcia
133Pages
This note covers the following topics: Geochemical Fundamentals, Low Temperature Geochemistry: The hydrologic cycle and sedimentary systems, High Temperature and Planetary Geochemistry.
Author(s): Ken Rubin
NAPages
The central objective of this lecture in a deeper understanding of mantle interaction. Topics include: history of ocean basins, formation of MORBs and OIB's, mantle geochemistry, mantle heterogeneity; slab recycling, mantle models.
Author(s): Prof. Dr. Wolfgang Siebel
NAPages
This note explains the following topics: acid or base and electrochemical concepts, aqueous geochemistry and solid-water interactions with an emphasis on ground water, chemical weathering, mineral thermodynamics and redox (Eh-pH) diagrams and their applications to soil and mineral stability and ground water chemistry, modeling, environmental geochemistry and isotopes applied to groundwaters.
Author(s): B. Saini-Eidukat
NAPages
This note looks at the oceans and is an introduction to marine chemistry. The sub-topics of this lecture includes: ocean dynamic topography, ocean temperature and salinity; oceanic circulation; thermohaline circulation, carbon cycle, composition of sea water; variations of sea water through time, hot vents and cold seeps, ferromanganese nodules, gas hydrates, radiogenic isotopes in the oceans, U-disequilibrium dating and sedimentation rates.
Author(s): B. Saini-Eidukat
NAPages
This book brings together the knowledge from a variety of topics within the field of geochemistry. The audience for this book consists of a multitude of scientists such as physicists, geologists, technologists, petroleum engineers, volcanologists, geochemists and government agencies. The topics represented facilitate as establishing a starting point for new ideas and further contributions.
Author(s): Dionisios Panagiotaras
512Pages
This lecture note covers the following topics: Principles of Geochemistry, Chemical composition of the crust and selected rocks, Moles, atomic weights, bonding, Thermodynamics, Acids and Bases, Feldspar Weathering and Evaporites, Carbonate equilibrium, Clay Minerals and Cation Exchange, Rare Earth Elements and Magma, Dating, Geochemical Systems.
Author(s): Glen S. Mattioli and Ralph K. Davis
NAPages
This lecture note explains the following topics: Equilibrium, Free Energy, Calorimetry, Speciation, Activity, Stability Diagrams, Acid-base geochemistry,Carbonate Geochemistry, Redox Geochemistry, Nernst and Eh-pH diagrams,Microbes and energy,Sorption, Kinetics, Mixing and mineral chemistry, Phase relations, Geothermobarometry, Ore Geochemistry, Isotope Geochemistry and Radioisotope Geochemistry.
Author(s): Greg Druschel
NAPages
This note describes the following topics: Physics of the Nucleus and Radioactive Decay, Nucleosynthesis, Geochronology, Radiogenic Isotope Geochemistry, Cosmogenic Isotopes in Geochronology, Fission Track Dating, Isotope Cosmochemistry, Stable Isotope Geochemistry.
Author(s): W. M. Whit
NAPages
This book brings together the knowledge from a variety of topics within the field of geochemistry. The audience for this book consists of a multitude of scientists such as physicists, geologists, technologists, petroleum engineers, volcanologists, geochemists and government agencies. The topics represented facilitate as establishing a starting point for new ideas and further contributions. Major topics covered includes: Geochemical and Sedimentation History of Neogene Lacustrine Sediments, Arsenic Geochemistry in Groundwater System, Geochemistry of Hydrothermal Alteration in Volcanic Rocks, Behaviors of Mantle Fluid During Mineralizing Processes and Potential and Geochemical Characteristics of Geothermal Resources in Eastern Macedonia.
Author(s): Dionisios Panagiotaras
512Pages
This course note introduces students to the basic concepts of Medical Geology/Geochemistry. Medical Geology or Geochemistry is the study of the interaction between abundances of elements and isotopes and the health of humans and plants. Topics covered includes: Classification of Elements, Elemental Link Between Geosphere and Biosphere, Essential and Non-essential Elements with Reference to Human Health, Selection of Elements for Report and Presentation,NORM (Naturally Occurring Radioactive Material), TENORM, MIT-EAPS Neutron Activation Analysis Laboratory - Hands on Experience and Dust Storms.
Author(s): Dr. Ila Pillalamarri
NAPages
This lecture note explains the use Trace Element Geochemistry to understand the origin and evolution of igneous rocks. The approach is to discuss the parameters that control partitioning of trace elements between phases and to develop models for the partitioning of trace elements between phases in igneous systems, especially between minerals and melt. Beginnings of geochemistry, Thermodynamic consideration of TE solid solutions, Partition coefficient, Ionic model for bonding, Nomenclature for trace element classification, Determination of partition coefficients, Trace element abundance variations in simple melt-solid systems, Fractional crystallization, Fractional melting, Complex melting models, Constraints on melt models arising from disequilibrium in the Th-U decay system, Ion exchange chromatography.
Author(s): Prof. Frederick Frey
NAPages
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