Research Group Isotope Geochemistry

The focus of our research is to elucidate the geochemical evolution of the Earth and its oceans using stable and radiogenic isotopes. We investigate remarkable events in earth history such as extreme transitions between icehouse and greenhouse, mass extinctions and global ocean acidification. This framework provides an excellent opportunity in understanding past environmental changes and could help us to predict the behaviour of earth’s environment during future climate changes. An additional focus is on transport and recycling of elements at active continental margins. We also investigate the impact of environmental changes on the sediment input from rivers and meltwater into the ocean based on provenance studies. Isotopic archives are silicate rocks, carbonates, evaporites and hydrothermal water.

Working Area

Central Andes of South America (Chile, Argentina), carbonate platforms (Namibia, Iberian Peninsula, Iran), river systems and continental shelfs (Brazil, Argentina, Greenland), submarine hydrothermal systems.

Methods

Field work, sample preparation and column chromatography in clean laboratories, isotope analysis via thermal ionisation mass spectrometry (TIMS) and multicollector (MC)-inductively coupled plasma mass spectrometry (MC-ICP-MS).

Evaporites in the Argentine Puna East of Hombre Muerto with erosional remnant of the Cerro Galan ignimbrite eruption and Precambrian basement rocks. Picture: @ B.Heit
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Head
Prof. Dr. Simone Kasemann

1996 Diploma in Geology Westfälische Wilhelms-Universität Münster; 1999 Dissertation in Geology Technische Universität Berlin; Employment 1999-2009: Technische Universität Berlin; GeoForschungsZentrum Potsdam; Institute for Reference Materials and Measurements, European Commission, Belgium; Department of Earth Sciences University of Bristol, UK; Grant Institute of Earth Science, University of Edinburgh UK; Institut für Geologische Wissenschaften, Freie Universität Berlin.

Professor in Bremen since 2009
Honorary Fellow at the University of Edinburgh since 2009

Research Interests:
Signatures and mechanisms of global and extreme environmental changes in earth history. Transport and recycling of elements and isotopes at active continental margins. Development of isotope techniques

Tel. +49 421 218 - 65930
simone.kasemann@uni-bremen.de

Marum - Zentrum für Marine Umweltwissenschaften
der Universität Bremen
MARUM1 building / room nr. 1220
Leobener Straße
28359 Bremen

Barbara Muntz

Tel.: +49 421 218 - 65931

bmuntz@marum.de


Marum - Zentrum für Marine Umweltwissenschaften
der Universität Bremen
MARUM1 building / room nr. 1200
Leobener Straße
28359 Bremen

Head Prof. Dr. Simone Kasemann

Marum - Zentrum für Marine Umweltwissenschaften
der Universität Bremen
Leobener Straße
28359 Bremen
Tel. +49 421 218 - 65930
simone.kasemann@uni-bremen.de

Secretariat

Barbara Muntz

Tel.: +49 421 218 - 65931

bmuntz@marum.de


Marum - Zentrum für Marine Umweltwissenschaften
der Universität Bremen
MARUM1 building / room nr. 1200
Leobener Straße 28359 Bremen

Curriculum Vitae

1996 Diploma in Geology Westfälische Wilhelms-Universität Münster; 1999 Dissertation in Geology Technische Universität Berlin; Employment 1999-2009: Technische Universität Berlin; GeoForschungsZentrum Potsdam; Institute for Reference Materials and Measurements, European Commission, Belgium; Department of Earth Sciences University of Bristol, UK; Grant Institute of Earth Science, University of Edinburgh UK; Institut für Geologische Wissenschaften, Freie Universität Berlin.

Professor in Bremen since 2009
Honorary Fellow at the University of Edinburgh since 2009

Research Interests:
Signatures and mechanisms of global and extreme environmental changes in earth history. Transport and recycling of elements and isotopes at active continental margins. Development of isotope techniques