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DFG - Priority program 11 44 From mantle to
ocean Energy, material and life cycles on
spreading axes
DFG-Schwerpunktprogramm 11 44 Vom Mantel zum
Ozean Energie-, Stoff- und Lebenzyklen an
Spreizungsachsen
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Universität Bremen, Fachbereiche
Geowissenschaften Physik C. W. Devey
(Petrology, Coordinator), I. Grevemeyer
(Geophysics), K. Lackschewitz (Hydrothermal
Petrology), H. Villinger (Geothermic), M. Rhein
(Oceanography) Freie Universität Berlin,
Fachbereich Geowissenschaften A. Koschinsky
(Hydrothermal geochemistry) Technische
Universität Bergakademie Freiberg, Inst. für
Mineralogie P. Herzig (Hydrothermal
mineralisation), T. Kuhn (Hydrothermal
mineralisation) Universität Hamburg, Zoologisches
Institut O. Giere (Zoology, symbioses) Universität
Kiel, Inst. für Geowissenschaften Geomar K.
Haase (Petrology/geochemistry), J. Phipps Morgan
(Geodynamics), T. Reston (Geophysics) Max-Planck-I
nstitut für marine Mikrobiologie Bremen J. Küver
(Microbiology), C. Borowski (Zoology,
symbioses) Max-Planck-Institut für Chemie Mainz,
Abt. Geochemie J. Snow (Mantle rocks) Universität
Marburg L. Beck (Zoology, taxonomy)
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From mantle to ocean
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From mantle to ocean
Aims

• Large-scale study of selected MAR areas
• Structure
• Volcanology
• Hydrothermalism
• Globally or Atlantic-relevant quantifications
• Time scales (i.e. Monitoring)

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Logatchev 15N
Jan/Feb 2004 Mapping and ROV-sampling of
hydrothermal fields (minerals, sediments, water,
biota) Mid 2005 Beginning monitoring
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Logatchev 15N
Monitoring (1st deployment 2005, recovery 2006)
Base Station Monitors key environmental
parameters such as ambient seafloor pressure,
bottom water temperature, seismic activity and
large scale tilting events Distributed
temperature monitoring system Monitors
temperature along a profile either across
identified fissures and/or inside biological
communities. Measurements made with digital
temperature sensor array individually addressable
over a two-wire bus. Bottom water temperature
profile monitor A 2m long lance, housing 8
temperature sensors and an 8 channel 24 bit
resolution temperature data logger.
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Atlantic 2-11S
Ridge bathy. database, LDEO
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Atlantic 2-11S
Nov/Dec 2004

• Collecting all necessary basis data
• Identifying key areas, monitoring
• Integrating inter-disciplinary data
• Preparing for long time-series observations

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100 km
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DFG - Priority program 11 44 Time lines Total
duration 1.10.2003 30.9.2009 1st proposal
period 31.3.2003 , for 2 years (30 proposals
received) Cruises 2004 M60/3 15.01.04
13.02.04 15N Biology, hydrothermalism
(Herzig) M62/4 29.09.04 06.11.04 2-4S
Geophysics (Reston) M62/5 09.11.04 30.12.04
4-11S Bathymetry, side-scan, ROV
(Devey) 2005 April, 15N Heat flow, Geophysics,
Biology (Villinger) May, 4-11S Petrology,
Geophysik, Biology (Haase) 2006 4-11S Hydroth.
Fluids/Biology (Türkay/Koschinsky) 15N Rock
drill und Biology (Herzig/Borowski)