• A fluid pulse on the Hikurangi subduction margin: Evidence from a heat flux transect across the upper limit of gas hydrate stability 

  Pecher, Ingo; Villinger, Heiner; Kaul, Nobert; Crutchley, Gareth J.; Huhn, K.; Kukowski, N.; Henrys, S. A.; Rose, P. S.; Coffin, Richard B.; Mountjoy, Joshu J. (American Geophysical Union, 2017-12-10)

  A transect of seafloor heat probe measurements on the Hikurangi Margin shows a significant increase of thermal gradients upslope of the updip limit of gas hydrate stability at the seafloor. We interpret these anomalously ...

• Dissolved inorganic carbon pump in methane-charged shallow marine sediments: State of the art and new model perspectives 

  Akram, Sajjad A.; Coffin, Richard B.; Abdulla, Hussain A. N.; Lyons, Timothy W. (Frontiers in Marine Science, 2020-04-15)

  Methane transport from subsurface reservoirs to shallow marine sediment is characterized by unique biogeochemical interactions significant for ocean chemistry. Sulfate-Methane Transition Zone (SMTZ) is an important diagenetic ...

• Sulfate reduction and methane oxidation activity below the sulfate-methane transition zone in Alaskan-Beaufort continental margin sediments: Implications for deep sulfur cycling 

  Treude, Tina; Krause, Stefan; Schweers, Johanna; Dale, Andrew W.; Coffin, Richard B. (Elsevier, 2014-09-01)

  Two ~6 m long sediment cores were collected along the ~300 m isobath on the Alaskan-Beaufort continental margin. Both cores showed distinct sulfate-methane transition zones (SMTZ) at 105 and 120 cm below seafloor (cmbsf). ...

• Viewshed simulation and optimization for digital terrain modelling with terrestrial laser scanning 

  Starek, Michael J.; Chu, Tianxing; Mitasova, Helena; Harmon, Russell S. (Taylor & Francis, 2020-02-19)

  The main objective of this study is the development of a simulation and optimization method for wide-area terrain mapping with terrestrial laser scanning (TLS). The problem can be stated as follows: given a prior digital ...

• CO2 release from pockmarks on the Chatham Rise-Bounty Trough at the glacial termination 

  Stott, Lowell; Davy, Bryan; Shao, Jun; Coffin, Richard; Pecher, Ingo; Neil, Helen; Rose, Paula; Bialas, Joerg (American Geophysical Union, 2019-09-18)

  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 are concentrated above the flat-subducted Hikurangi Plateau. ...

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