NZGEOBIOLOGY

Biogeochemistry of New Zealand Cretaceous-Cenozoic hydrocarbon-seeps

Coordinatore	UNIVERSITAET BREMEN    more  Organization address address: Bibliothekstrasse 1 city: BREMEN postcode: 28359 contact info Titolo: Ms. Nome: Silke Cognome: Reinold Email: send email Telefono: -42121860277 Fax: -4212189084
Nazionalità Coordinatore	Germany [DE]
Totale costo	166˙982 €
EC contributo	166˙982 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2007-2-1-IEF
Funding Scheme	MC-IEF
Anno di inizio	2008
Periodo (anno-mese-giorno)	2008-08-01   -   2010-07-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSITAET BREMEN  Organization address address: Bibliothekstrasse 1 city: BREMEN postcode: 28359 contact info Titolo: Ms. Nome: Silke Cognome: Reinold Email: send email Telefono: -42121860277 Fax: -4212189084	DE (BREMEN)	coordinator	0.00

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 Obiettivo del progetto (Objective)

'Hydrocarbons accumulate in the Earth’s geosphere and can be released into the oceans and atmosphere, driven by geologic and tectonic events. On marine continental margins, faulting and over-pressured sedimentary pore-fluids can initiate fluid movement from depth, to manifest as subsurface fluid migration (plumbing) and seafloor hydrocarbon seepages or gas hydrates. Seeps and gas hydrates serve as markers for petroleum exploration, shape the biogeographic distribution and evolution of chemosynthetic ecosystems, and may trigger slope instability or climate change. In New Zealand’s North Island, these short-timed fluid-flow features leave behind robust signatures in authigenic seep-carbonates. These carbonates were precipitated due to anaerobic oxidation of methane (AOM) and will be investigated by detailed molecular-isotopic biomarker analyses in order to deliver their key messages. This pioneering study on lipid biomarkers in ancient NZ-seeps will provide important information on 1) scavenging former activity at methane-seeps performed by a microbial community inhabiting ancient methane-seeps, 2) impact of abrupt changes in extreme environments on methane-seeps communities 3) the composition of the microbial community at methane-seeps, 4) ecological functions of certain microbial groups. Results obtained on lipid biomarkers of ancient methane-seeps will be a major part of an international collaborative research programme which aims are to elucidate how-fluid flow manifestations, namely hydrocarbon seeps and gas hydrates, interact with biosphere-hydrosphere-geosphere interfaces over geologic time. It will also assist in linking New Zealand’s past and present chemosynthetic communities to those which occur around the Pacific Rim in the extreme environments of hydrothermal vents and hydrocarbon seeps.'