Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report
This report provides a preliminary summary of geochemical contribution to methane hydrate research and exploration on the Hikurangi Margin, off the northeastern coast of New Zealand from June 20 to July 3, 2006. Geochemical porewater profiles taken from shallow piston cores and vertical fluid migrat...
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ftdtic:ADA478461 2023-05-15T17:12:09+02:00 Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report Coffin, Richard B. Hamdan, LeiLa Pohlman, John Wood, Warren Pecher, Ingo Henrys, Stuart Greinert, Jens Faure, Kevin Gorman, Andrew Orpin, Alan NAVAL RESEARCH LAB WASHINGTON DC CHEMISTRY DIV 2008-02-29 text/html http://www.dtic.mil/docs/citations/ADA478461 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA478461 en eng http://www.dtic.mil/docs/citations/ADA478461 Approved for public release; distribution is unlimited. DTIC Biological Oceanography Geology Geochemistry and Mineralogy Mining Engineering *GEOCHEMISTRY *GEOPHYSICAL PROSPECTING *METHANES SEISMIC DETECTION CONTINENTAL SHELVES MARINE BIOLOGY NEW ZEALAND HEAT TRANSMISSION MICROBIOLOGY LITTORAL ZONES SEDIMENTS *GEOCHEMICAL POREWATER PROFILES SEISMIC PROFILES GAS HYDRATES HIKURANGI MARGIN DEEP SEDIMENT HYDRATES DEPOSITS OCEAN CARBON MARINE SEDIMENTS CLIMATE CHANGE MICROBIAL ANAEROBIC OXIDATION SEISMIC EXPLORATION Text 2008 ftdtic 2016-02-22T14:14:36Z This report provides a preliminary summary of geochemical contribution to methane hydrate research and exploration on the Hikurangi Margin, off the northeastern coast of New Zealand from June 20 to July 3, 2006. Geochemical porewater profiles taken from shallow piston cores and vertical fluid migration measured with heatflow probing were compared with seismic summaries of potential deep sediment hydrates deposits. Research goals for this expedition include: (1) Refine geophysical, geochemical, and microbiological technologies for prospecting hydrate distribution and content; (2) Contribute to establishing high-priority geographical regions of prospective interest, in terms of methane volume estimates; (3) Prediction of environmental effects and geologic risks at the continental margin associated to the natural resource occurrence and resource exploitation; and (4) Expand understanding of the biogeochemical parameters and associated microbial community diversity in shallow sediments that influences the porewater sulfate gradient observed through anaerobic methane oxidation profiles. Scientists from New Zealand, United States, Belgium, Canada and Germany, representing 11 university and government research institutions contributed to this expedition. Expertise of the science team resulted in the contribution of geochemical, geophysical, geological, molecular ecology, and biological data to address ocean water column, sediment, and porewater research questions. Prepared in collaboration with Geological and Nuclear Sciences, Lower Hutt, NZ; Department of Geology, University of Otago, Dunedin, NZ; and National Institute of Water and Atmospheric Research, Kilbirnie, Wellington, NZ. The original document contains color images. Text Methane hydrate Defense Technical Information Center: DTIC Technical Reports database Canada New Zealand |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Biological Oceanography Geology Geochemistry and Mineralogy Mining Engineering *GEOCHEMISTRY *GEOPHYSICAL PROSPECTING *METHANES SEISMIC DETECTION CONTINENTAL SHELVES MARINE BIOLOGY NEW ZEALAND HEAT TRANSMISSION MICROBIOLOGY LITTORAL ZONES SEDIMENTS *GEOCHEMICAL POREWATER PROFILES SEISMIC PROFILES GAS HYDRATES HIKURANGI MARGIN DEEP SEDIMENT HYDRATES DEPOSITS OCEAN CARBON MARINE SEDIMENTS CLIMATE CHANGE MICROBIAL ANAEROBIC OXIDATION SEISMIC EXPLORATION |
spellingShingle |
Biological Oceanography Geology Geochemistry and Mineralogy Mining Engineering *GEOCHEMISTRY *GEOPHYSICAL PROSPECTING *METHANES SEISMIC DETECTION CONTINENTAL SHELVES MARINE BIOLOGY NEW ZEALAND HEAT TRANSMISSION MICROBIOLOGY LITTORAL ZONES SEDIMENTS *GEOCHEMICAL POREWATER PROFILES SEISMIC PROFILES GAS HYDRATES HIKURANGI MARGIN DEEP SEDIMENT HYDRATES DEPOSITS OCEAN CARBON MARINE SEDIMENTS CLIMATE CHANGE MICROBIAL ANAEROBIC OXIDATION SEISMIC EXPLORATION Coffin, Richard B. Hamdan, LeiLa Pohlman, John Wood, Warren Pecher, Ingo Henrys, Stuart Greinert, Jens Faure, Kevin Gorman, Andrew Orpin, Alan Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report |
topic_facet |
Biological Oceanography Geology Geochemistry and Mineralogy Mining Engineering *GEOCHEMISTRY *GEOPHYSICAL PROSPECTING *METHANES SEISMIC DETECTION CONTINENTAL SHELVES MARINE BIOLOGY NEW ZEALAND HEAT TRANSMISSION MICROBIOLOGY LITTORAL ZONES SEDIMENTS *GEOCHEMICAL POREWATER PROFILES SEISMIC PROFILES GAS HYDRATES HIKURANGI MARGIN DEEP SEDIMENT HYDRATES DEPOSITS OCEAN CARBON MARINE SEDIMENTS CLIMATE CHANGE MICROBIAL ANAEROBIC OXIDATION SEISMIC EXPLORATION |
description |
This report provides a preliminary summary of geochemical contribution to methane hydrate research and exploration on the Hikurangi Margin, off the northeastern coast of New Zealand from June 20 to July 3, 2006. Geochemical porewater profiles taken from shallow piston cores and vertical fluid migration measured with heatflow probing were compared with seismic summaries of potential deep sediment hydrates deposits. Research goals for this expedition include: (1) Refine geophysical, geochemical, and microbiological technologies for prospecting hydrate distribution and content; (2) Contribute to establishing high-priority geographical regions of prospective interest, in terms of methane volume estimates; (3) Prediction of environmental effects and geologic risks at the continental margin associated to the natural resource occurrence and resource exploitation; and (4) Expand understanding of the biogeochemical parameters and associated microbial community diversity in shallow sediments that influences the porewater sulfate gradient observed through anaerobic methane oxidation profiles. Scientists from New Zealand, United States, Belgium, Canada and Germany, representing 11 university and government research institutions contributed to this expedition. Expertise of the science team resulted in the contribution of geochemical, geophysical, geological, molecular ecology, and biological data to address ocean water column, sediment, and porewater research questions. Prepared in collaboration with Geological and Nuclear Sciences, Lower Hutt, NZ; Department of Geology, University of Otago, Dunedin, NZ; and National Institute of Water and Atmospheric Research, Kilbirnie, Wellington, NZ. The original document contains color images. |
author2 |
NAVAL RESEARCH LAB WASHINGTON DC CHEMISTRY DIV |
format |
Text |
author |
Coffin, Richard B. Hamdan, LeiLa Pohlman, John Wood, Warren Pecher, Ingo Henrys, Stuart Greinert, Jens Faure, Kevin Gorman, Andrew Orpin, Alan |
author_facet |
Coffin, Richard B. Hamdan, LeiLa Pohlman, John Wood, Warren Pecher, Ingo Henrys, Stuart Greinert, Jens Faure, Kevin Gorman, Andrew Orpin, Alan |
author_sort |
Coffin, Richard B. |
title |
Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report |
title_short |
Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report |
title_full |
Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report |
title_fullStr |
Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report |
title_full_unstemmed |
Geochemical Characterization of Concentrated Gas Hydrate Deposits on the Hikurangi Margin, New Zealand: Preliminary Geochemical Cruise Report |
title_sort |
geochemical characterization of concentrated gas hydrate deposits on the hikurangi margin, new zealand: preliminary geochemical cruise report |
publishDate |
2008 |
url |
http://www.dtic.mil/docs/citations/ADA478461 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA478461 |
geographic |
Canada New Zealand |
geographic_facet |
Canada New Zealand |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA478461 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766068930076475392 |