A REVIEW ANALYSIS OF GAS HYDRATE TESTS: ENGINEERING PROGRESS AND POLICY TREND.
Environmental Geotechnics Chen, L. Merey, S., Pecher, I. Okajima, J. Komya, A., Diaz-Naveas, J., Li, S., Maruyama, S., Kalachand, S. Kvamme, B., Coffin, R. Methane hydrate has become one promising energy resource for humankind. In this study, recent worldwide...read more
DISSOLVED INORGANIC CARBON PUMP IN METHANE-CHARGED SHALLOW MARINE SEDIMENTS: STATE OF THE ART AND NEW MODEL PERSPECTIVES.
Frontiers in Marine Science. Akam, S.A., Coffin, R.B., Abdulla, H.A., Lyons, T.A. Our data synthesis and broad interpretation emphasizes the importance of SMTZ as not only a methane sink but also an important diagenetic front for global DIC cycling. We further...read more
CARBON ISOTOPE FORENSICS FOR METHANE SOURCE IDENTIFICATION.
Remediation Coffin, R., Mueller, J. Methane (CH4) in ecosystems originates from ancient petroleum formed deep within the earth and/or via microbial fermentation of organic carbon and subsequent reduction of carbon dioxide (CO2). Given the complexity of different...read more
CO2 RELEASE FROM POCKMARKS ON THE CHATHAM RISE-BOUNTY TROUGH AT THE GLACIAL TERMINATION.
Paleoceanography And Paleoclimatology Stott, L., Davy, B. Shao, J. Coffin, R., Pecher, I., Neil, H., Rose, P. Seafloor pockmarks of varying size occur over an area of 50,000 km2 on the Chatham Rise, Canterbury Shelf and Inner Bounty Trough, New Zealand. The pockmarks...read more
ATMOSPHERE-OCEAN CO2 EXCHANGE ACROSS THE LAST DEGLACIATION FROM THE BORON ISOTOPE PROXY
Paleoceanography Shao, J., Stott, L., Gray, W.R., Rae, J.W.B., Greenop, R., Pecher, I., Coffin, R.B., Neil, H. Identifying processes within the Earth System that have modulated atmospheric pCO2 during each glacial cycle of the late Pleistocene stands as one of the...read more
Land and Aquatic Studies: Carbon Stable and Radio Isotope Analysis and More
New writings include articles on the following subjects: Carbon Stable and Radio Isotope Analysis to Identify Methane Sources During a Remedial Action Carbon Isotope Analysis to Conﬁrm Petroleum Natural Attenuation in the Vadose Zone Norfolk Naval Air Base...read more
Did My Remedial Amendment Produce All That Methane?
Methanogens/Archaea produce methane. They are often the dominant microbes in reduced environments. Methanogenesis is a requisite component of conventional anaerobic bioremediation. If Archaea are not controlled, then in situ remedial actions employing conventional...read more
Stable and Radio Isotope Analysis to Identify Methane Sources During a Remedial Action
Methanogens/Archaea may be dominant microbes in reduced environments, and methanogenesis can be a component of anaerobic bioremediation. If Archaea are not controlled, then in situ remedial actions employing conventional (i.e., no active control of Archaea) amendments...read more
Coastal Beaufort Sea Alaskan Shelf Organic Carbon Source(s): Strong Spatial Variations
Carbon isotope geochemistry is applied to understand spatial variation in tundra and methane contribution to coastal shallow sediment cycling across the Alaskan Shelf in the Beaufort Sea. This study shows strong spatial variation in the carbon sources that is a...read more
Dissolved Methane in the Beaufort Sea and the Arctic Ocean, 1992-2009; Sources and Atmospheric Flux
Methane concentration and stable carbon isotope ratios measured from ice and ice free waters along the Alaskan Shelf in the Beaufort Sea between 1992 and 2009 show strong spatial variation in flux rates to the atmosphere. Isotope analysis indicated the primary source...read more