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Magmatic and Hydrothermal Processes

Lecturers: Wolfgang Bach, Andreas Klügel

Content:

In course work, we review concepts of phase relations and geochemistry in mantle melting and magmatic crystallization as well as water-rock interactions in hydrothermal system. We visit the IODP core repository to examine core from different drill sites in the Atlantic.

The microscopy part (1/3 of the module) is a refresher in thin section microscopy with special emphasis on textural interpretation and petrogenetic implications. Rocks from volcanic islands, the oceanic crust and the sub-oceanic mantle will be investigated.
PRE-REQUISITES:
- Basic experience in investigations of thin sections with a polarizing microscope.
- Basic knowledge of petrology and petrography of igneous rocks.
A participation is not recommended if these pre-requisites are not met!

Competences:

1) Students understand phase relations and mass balance constraints of mantle melting and magmatic differentiation.
2) Students are able to use thin section microscopy to determine textures and phase assemblages and turn these observations into models of rock formation.
3) Students know how to work with rock geochemical data and interpret the results.
4) Students understand the role of ocean crust formation and alteration in System Earth.

Assessment:

Open-book exam with a number of comprehension questions

Exam Form:

Hausarbeit

Literature:

- Searle M, Mid-ocean ridges, Cambridge University Press
- Winter J, Introduction to Petrology, Cambridge University Press
- Best MC & Christiansen EH, Igneous petrology, Blackwell Science
- Raith MM, Raase P & Reinhardt J, Thin section microscopy, ISBN 978-3-00-037671-9 (PDF)
- Vernon RH, A practical guide to rock microstructure, Cambridge University Press

Contents:

1st SWS: Primer petrology / thin section microscopy
2nd SWS: Magmatic differentiation / thin section microscopy
3rd SWS: Magmatic differentiation / thin section microscopy
4th SWS: Mantle melting, ridges / thin section microscopy
5th SWS: Mantle melting, plumes / thin section microscopy
6th SWS: Melt-rock interaction / thin section microscopy
7th SWS: Subduction zones / thin section microscopy
8th SWS: Subduction zones / thin section microscopy
9th SWS: Water-rock reactions / thin section microscopy
10th SWS: Crust-seawater exchange / thin section microscopy
11th SWS: Hydrothermal vents / thin section microscopy
12th SWS: Geochemical mass balances / thin section microscopy
13th SWS: Trace elements / thin section microscopy
14th SWS: Isotopes / thin section microscopy


Teaching Aids:

Polarisations-Mikroskope

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Basic Data
VAK-Number

05-MMG-OC1-1


Study Program

Master Marine Geosciences


Module Name

Magmatic and Hydrothermal Processes


Course Type

Lecture, Exercise (L+E)


First Year of Study

6 CP

4 SWS

Winter Term


Course Language

English


Contact Person
­

Petrologie der Ozeankruste

Prof. Dr. Wolfgang Bach

GEO 5340R

Phone: +49 421 218 - 65400

wbach@uni-bremen.de

Petrologie der Ozeankruste

Prof. Dr. Wolfgang Bach

GEO 5340R

Phone: +49 421 218 - 65400

wbach@uni-bremen.de
Lecturer

­

Prof. Dr. Wolfgang Bach

GEO 5340

Phone: +49 421 218 - 65400

wbach@uni-bremen.de

Prof. Dr. Wolfgang Bach

GEO 5340

Phone: +49 421 218 - 65400

wbach@uni-bremen.de
­

PD Dr. Andreas Klügel

GEO 5360

Phone: +49 421 218 - 65402

akluegel@uni-bremen.de

PD Dr. Andreas Klügel

GEO 5360

Phone: +49 421 218 - 65402

akluegel@uni-bremen.de
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