Suchergebnis: Katalogdaten im Herbstsemester 2016

Erdwissenschaften Master Information
Vertiefung in Geology
Wahlpflichtmodule Geology
Innerhalb der Majors Geology sind mindestens zwei Wahlpflichtmodule zu absolvieren.
Sedimentology
Sedimentology: Wahlpflichtfächer
NummerTitelTypECTSUmfangDozierende
651-4901-00LQuaternary Dating Methods Information W3 KP2GI. Hajdas, S. Ivy Ochs
KurzbeschreibungReconstruction of time scales is critical for all Quaternary studies in both Geology and Archeology. Various methods are applied depending on the time range of interest and the archive studied. In this lecture we focus on the six methods that are most frequently used for dating Quaternary sediments and landforms.
LernzielStudents will be made familiar with the details of the six dating methods through lectures on basic principles, analysis of case studies, solving of problem sets for age calculation and visits to dating laboratories.

At the end of the course students will:
1. understand the fundamental principles of the most frequently used dating methods for Quaternary studies.
2. be able to calculate an age based on data of the six methods studied.
3. choose which dating method (or combination of methods) is suitable for a certain field problem.
4. critically read and evaluate the application of dating methods in scientific publications.
Inhalt1. Introduction: Time scales for the Quaternary, Isotopes and decay
2. Radiocarbon dating: principles and applications
3. Cosmogenic nuclides: 3He,10Be, 14C, 21Ne, 26Cl, 36Cl
4. U-series disequilibrium dating
5. Luminescence dating
5. K/Ar and Ar/Ar dating of lava flows and ash layers
6. Cs-137 and Pb-210 (soil, sediments, ice core)
7. Summary and comparison of results from several dating methods at specific sites
Voraussetzungen / BesonderesVisit to radiocarbon lab, cosmogenic nuclide lab, noble gas lab, accelerator (AMS) facility.

Required attending the lecture, visiting laboratories, handing back solutions for problem sets (Excercises)
651-4063-00LX-ray Powder Diffraction Belegung eingeschränkt - Details anzeigen
Maximale Teilnehmerzahl: 12
W3 KP2GM. Plötze
KurzbeschreibungIn the course the students learn to measure X-ray diffraction patterns of minerals and to evaluate these using different software for qualitative and quantitative mineral composition as well as crystallographic parameters.
LernzielUpon successful completion of this course students are able to:
- describe the principle of X-ray diffraction analysis
- carry out a qualitative and quantitative mineralogical analysis independently,
- critically assess the data,
- communicate the results in a scientific report.
InhaltFundamental principles of X-ray diffraction
Setup and operation of X-ray diffractometers
Interpretation of powder diffraction data
Qualitative and quantitative phase analysis of crystalline powders (e.g. with Rietveld analysis)
SkriptSelected handouts will be made available in the lecture
LiteraturALLMANN, R.: Röntgen-Pulverdiffraktometrie : Rechnergestützte Auswertung, Phasenanalyse und Strukturbestimmung Berlin : Springer, 2003.
DINNEBIER, R.E. et al.: Powder Diffraction. Royal Society of Chemistry, Cambridge, 2008. (Link)
PECHARSKY, V.K. and ZAVALIJ, P.Y: Fundamentals of Powder Diffraction and Structural Characterization of Materials. Springer, 2009.
(Link)
Voraussetzungen / BesonderesThe course includes a high portion of practical exercises in sample preparation as well as measurement and evaluation of X-ray powder diffraction data.
Own sample will be analysed qualitatively and quantitatively. Knowledge in mineralogy of this system is essential.
The lecture course is limited to 12 participants.
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