SPP 1144:
Vom Mantel zum Ozean: Energie-, Stoff- und Lebenszyklen an Spreizungsachsen
Fachliche Zuordnung
Geowissenschaften
Biologie
Medizin
Förderung
Förderung von 2003 bis 2009
Projektkennung
Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5471797
Erstellungsjahr
2009
Zusammenfassung der Projektergebnisse
In situ Sensormessungen direkt am Meeresboden von hydrothermalen Ventsystemen zeigten, dass die angesiedelten Lebensgemeinschaften gut an die Umweltbedingungen angepasst sind. Zum einen nutzen sie die direkte Anlieferung von Nährstoffen aus, um grosse Lebensgemeinschaften zu bilden, zum anderen sind sie aber auch in der Lage die Umweltparameter so zu beeinflussen, dass lebensfreundliche Umgebungen entstehen. Da die in diesen Meeresgebieten angesiedelten Organismen ausschliesslich von der durch die hydrothermalen Systeme angelieferten Energie leben, sind auch nur solche Gebiete besiedelt, an denen ein direkter Einfluss vorhanden ist. Dadurch nimmt die Besiedlung in den Randbereichen ab. Der diffuse Austritt von Ventfluiden ermöglicht den Muscheln und speziell ihrer Symbionten einen direkten Zugriff auf die in den Fluiden enthaltenen reduzierten Substanzen, wie Sulfid und Wasserstoff.
Die gleichzeitige Messung von Sulfid und Sauerstoff mehreren Zentimetern oberhalb der Sediment-Wasser Grenzschicht war erstaunlich, da man instinktiv eine sofortige Oxidation des ausströmenden Sulfides durch Sauerstoff erwarten würde.
DFG-Verfahren
Schwerpunktprogramme
Internationaler Bezug
Brasilien, Dänemark, Neuseeland, Schweiz, USA
Projekte
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A combined petrological, geochemical and geochronological study of the magmatic rocks surrounding the Logatchev hydrothermal field.
(Antragsteller
Koepke, Jürgen
)
-
An "Autonomous Underwater Vehicle (AUV)" for sPP 1144 and German marine science
(Antragsteller
Devey, Colin
)
-
Biosignatures in precipitates and altered rocks at hydrothermal systems of the Mid-Atlantic Ridge: organic geochemistry, microbiology and petrography
(Antragstellerinnen / Antragsteller
Perner, Mirjam
;
Petersen, Sven
;
Seifert, Richard
)
-
Carbonate Precipitation Induced by Serpentinization on the Mid-Atlantic Ridge
(Antragsteller
Peckmann, Jörn
)
-
Coordination of the Priority Program 1144 "From the mantle to the ocean"
(Antragsteller
Devey, Colin
)
-
Emission and plume transport of methane and hydrogen from the Mid-Atlantic Ridge
(Antragsteller
Keir, Robin
;
Schmale, Oliver
)
-
Gas chemistry and carbon cycling at hydrothermal systems along the Mid-Atlantic Ridge: time- and space-referenced biogeochemical and isotopic investigations
(Antragsteller
Seifert, Richard
)
-
Geobiological coupling between hydrothermal vent fluids and symbiotic primary producers at spreading axes
(Antragstellerin
Dubilier, Nicole
)
-
Geobiology of modern and ancient endolithic microorganisms within ultramafic rocks on the Mid-Atlantic Ridge
(Antragsteller
Reitner, Joachim
)
-
Geobiology of modern and ancient endolithic microorganisms within ultramafic rocks on the Mid-Atlantic Ridge
(Antragsteller
Peckmann, Jörn
)
-
Geobiology of modern and ancient endolithic microorganisms within ultramafic rocks on the Mid-Atlantic Ridge
(Antragsteller
Böttcher, Michael E.
)
-
Geophysical imaging of the deep seated pluming system feeding and controlling the Logatchev Hydrothermal vent field at the Mid-Atlantic Ridge near 15°N
(Antragstellerinnen / Antragsteller
Dahm, Torsten
;
Grevemeyer, Ingo
;
Jegen-Kulcsar, Marion
)
-
Geophysical Studies near the Ascension Transform: Evolution of Ridge Segmentation and Crustal Structure - Auswertung
(Antragsteller
Bialas, Jörg
)
-
High resolution volcanology and geochemistry of mid ocean ridge segments flanking the 9°40'S melt anomaly and the Ascension hot spot
(Antragsteller
Münker, Carsten
)
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Hoch- und Niedrigtemperatur-Alteration ultramafischer Ozeankruste: Mineralogie, Geochemie und isotopische Eigenschaften von Hydrothermalsystemen am Mittelatlantischen Rücken zwischen 14° und 15°N
(Antragsteller
Lackschewitz, Klas S.
)
-
Hydrothermal Fluids at the Mid-Atlantic Ridge (15°N and 4-11°S) as Media for the Transport of Energy and Mass from the Crust into the Hydro- and Biosphere
(Antragstellerinnen / Antragsteller
Garbe-Schönberg, Carl-Dieter
;
Koschinsky, Andrea
)
-
In-situ determination of the spatial and temporal variation of elements and energy in hydrothermal fluids and associated microbial activity
(Antragsteller
Wenzhöfer, Frank
)
-
Investigations on population genetics and the influence of hydrothermal activity on bivalve growth at MAR hydrothermal vents
(Antragsteller
Borowski, Christian
)
-
Logatchev Longterm Hydrothermal Field Environmental Monitoring
(Antragsteller
Villinger, Heinrich
)
-
Low pressure differentiation of basalts at the Mid-Atlantic Ridge near Ascension - Constraints from experiments at controlled volatile and oxygen fugacities
(Antragsteller
Holtz, Francois
)
-
Magma differentiation processes and pre-eruptive conditions of MORBs (7-11°S) near Ascension Island - Constraints from experiments and phase equilibria modeling
(Antragsteller
Holtz, Francois
)
-
Metagenomic studies of the diversity and function of chemosynthetic microbial communities at oceanic spreading zones
(Antragsteller
Amann, Rudolf
)
-
Metagenomic studies of the diversity and function of chemosynthetic microbial communities at oceanic spreading zones
(Antragstellerin
Meyerdierks, Anke
)
-
Microbial diversity and key activities at hydrothermal habitats of the Mid-Atlantic Ridge
(Antragsteller
Imhoff, Johannes F.
)
-
Microbial interaction of fluid and mineral phases at hydrothermal vents of the Mid-Atlantic Ridge
(Antragsteller
Kuever, Jan
)
-
Mircrobial communities and metabolisms responsible for chemolithoautotrophic energy and carbon transfer at the Mid-Atlantic Ridge
(Antragstellerin
Perner, Mirjam
)
-
Numerical modeling of mantle flow, melt migration, and MORB compositions
(Antragsteller
Hort, Matthias
)
-
Opaque phase petrology and geochemical modeling as a guide to abiotic organic synthesis in the Mid-Atlantic Ridge 15°N area
(Antragsteller
Bach, Wolfgang
)
-
Passive electromagnetic and seismological measurements to study deep partial melt structure beneath the Mid Atlantic Ridge (MAR)
(Antragsteller
Dahm, Torsten
)
-
Primordial Helium and Vertical Mixing at the Midatlantic Ridge, 2°S-11°S
(Antragstellerin
Rhein, Monika
)
-
Sulphur isotopic investigation of dissolved and solid sulphur phases in fluids, mineral precipitates, sediments and rock samples from the Mid-Atlantic Ridge
(Antragsteller
Strauß, Harald
)
-
Temporal evolution of hydrothermal systems at the Mid-Atlantic Ridge (14°45 - 15°05N)
(Antragsteller
Scholten, Jan
)
-
The genetic relationship between ultramafic-hosted massive sulfides and their host rocks: petrological, geochemical and isotopic investigations of hydrothermal systems along the Mid-Atlantic Ridge between 14°45`N and 15°05`N
(Antragsteller
Herzig, Peter
)
-
The geology and structure of the Mid-Atlantic Ridge near Ascension Island
(Antragsteller
Devey, Colin
)
-
The Influence of Phase Separation on the Ca isotope Composition and Fluxes in Hydrothermal Systems
(Antragsteller
Eisenhauer, Anton
)
-
The Role of High- and Low-Temperature Ocean Crust Alteration for the Marine Calcium Budget
(Antragsteller
Eisenhauer, Anton
)
-
The third dimension of the ultramafic-hosted Logatchev-1 hydrothermal field: sulfide formation, evolution, and fluid flow in the subseafloor
(Antragsteller
Petersen, Sven
)
-
U-Th-Ra disequilibria in basalts from the Mid-Atlantic Ridge 6-11°S: Constraints on melting, mixing and time-scales of magmatic processes
(Antragsteller
Haase, Karsten Matthias
)
-
Variability of the near bottom hydrography, currents and mixing processes in the Logatchev-Field
(Antragsteller
Fischer, Jürgen
)
