PřF:G6101 Methods of laboratory research - Course Information

G6101 Methods of laboratory research of minerals and rocks

Extent and Intensity

3/1. 4 credit(s) (fasci plus compl plus > 4). Type of Completion: graded credit.

Teacher(s)

doc. Ing. Jiří Faimon, Dr. (lecturer)
RNDr. Petr Sulovský, Ph.D. (lecturer)

Guaranteed by

doc. RNDr. Rostislav Melichar, Dr.
Department of Geological Sciences – Earth Sciences Section – Faculty of Science
Contact Person: RNDr. Petr Sulovský, Ph.D.

Timetable of Seminar Groups

G6101/LabMe1: No timetable has been entered into IS. J. Faimon, P. Sulovský
G6101/LabMe2: No timetable has been entered into IS. J. Faimon, P. Sulovský

Prerequisites (in Czech)

! G6100 Methods of laboratory research

Course Enrolment Limitations

The course is also offered to the students of the fields other than those the course is directly associated with.

fields of study / plans the course is directly associated with

• Geology, Hydrogeology and Geochemistry (programme PřF, B-GE)
• Geology, Hydrogeology and Geochemistry (programme PřF, M-GE)
• Geology - Museology (programme PřF, B-GE)

Course objectives

The course provides students of the Bachelor program with basic knowledge and skill in laboratory research of rocks and minerals. The course focuses on basic operations (sampling and sample treatment, mineral separation), chemical methods (wet silicate analysis) and instrumental analyses (electron microscopy, electron microprobe, spectral methods in gamma, X-ray, UV, VIS, IR range, electrochemical and chromatographic methods) of rock samples. The course involves lab practicals.

Syllabus

• Sampling and sample treatment: Sampling of rocks and minerále in the field, technical tools. Optimum sample size, representativeness. Criteria for the choice of suuitable analytical methods (purpose, price, sensitivity, required sample size). Sample preparation for analysis - crushing, sieving, homogenisation. Mineral separation techniques: gravitational (panning, heavy liquid separation), magnetic (with permanent magnet, electromagnetic). Elutriation (Stokes' law, Kopecký's elutriator), flotation. Hand picking. Preparation of thin and polished sections.
  Macroscopic determination of mineral and rock properties: subjective colour scale, hardness, scratch, smell, cleavage, fluorescence, radioactivity. Density measurement. Refractive index measurement. Mineral luminescence, radioactivity, radiographic methods.
  X-ray methods: Theoretical basics (Bragg's equation). Powder method, diifractometer arrangement. Specimen preparation. Evaluation of X-ray patterns - qualitative analysis, phase identification. Quantitative phase analysis (RIR, internal standard method). Determination of lattice parameters, Rietveld's refinement method. Monocrystal methods. The possibilities of X-ray data usage.
  Thermal methods: Differential thermal analysis - method principles, thermal reactions of minerals, instrumentation. Interpretation of DTA and TG patterns, qualitative and quantitative analysis. Differential calorimetry, dilatometry, thermoluminiscence, decrepitometry. Examples of application of thermal methods in geology.
  Electron microscopy Basics of scanning and transmission electron microscope, imaging modes. Electron diffraction. Image analysis.
  Electron microanalysis Wavelength-dispersive method, energy-dispersive method. Less common microanalytical methods (ion microprobe, laser ablation probe). X-ray fluorescence spectroscopy.
  Chemical analysis: Analytical error, accuracy and rightness of the results, relative and absolute error, relative and absolute error, systematic, random and gross error, normal distribution of random errors, standard deviation, error propagation, confidence interval. Classification of analytical methods, their applicability. Choice of appropriate method, direct and indirect methods, analytical costs.
  Classical methods: Gravimetric methods, precipitation, filtration, decanting, examples of usage (determination of SiO2, S), typical analytical error. Volumetric methods, titration, titration agent, indicators, examples of usage (complexometric determination of Ca, Mg, Al, oxidimetric determination of Fe, acidimetric determination of SiO2), typical analytical error. Separation methods, extraction, ion exchangers.
  Instrumental methods. Classification (optical - spectral, non-spectral, electrochemical, chromatographic), usage, typical errors, evaluation in relative methods (calibration curve, standard addition, inner standard method).
  Emission spectral methods Spectrum formation (radio-wave, micro-wave, far-, near- and medium infrared, ultraviolet, X-ray, gamma-ray range), possible uses, methods (emission spectrography, flame photometry, emission spectrometry with inductively coupled plasma, neutron activation analysis).
  Absorption spectral methods: Formation of absorption spectra, Lambert-Beer law, methods (vibration spectroscopy, atomic absorption spectroscopy, infrared spectrometry), possible uses, typical instrumental arrangement.
  Elektrochemical and chromatographic methods: Electrochemical potentials, pH measurement, ion-selective electrodes; polarography. Chromatography, instrumental arranfgement, mobile and stationary phase, gas- and liquid chromatography, appplication, advantages, errors.

Literature

• FAIMON, Jiří. Základní metody analytické geochemie. VŠ skripta, 1. vyd. Brno: Masarykova univerzita, 1992, 147 s. ISBN 80-210-0498-3. info

Language of instruction

Czech

Further Comments

The course is taught annually.

• Enrolment Statistics (Autumn 2002, recent)
  
• Permalink: https://is.muni.cz/course/sci/autumn2002/G6101