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Creator:: Harris, Robert N. and Chapman, David S.
Abstract:: We construct a mid-latitude (30° – 60° N) reduced temperature-depth profile from a global borehole temperature database compiled for climate reconstruction. This reduced temperature profile is interpreted in terms of past surface ground temperature change and indicates warming on the order of 1°C over the past 100 to 200 years....
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Full Text:: temperatures with surface air temperatures Robert N. Harris and David S. Chapman University of Utah, Dept

Creator:: Harris, Robert N. and Chapman, David S.
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Full Text:: temperatures" Robert N. Harris and David S. Chapman Department of Geology and Geophysics, University of Utah

Creator:: Harris, Robert N. and Wang, Kelin
Abstract:: We present thermal models of the 24 Ma Cocos plate subducting under the Caribbean plate at the Nicoya Peninsula, Costa Rica. Our modeling incorporates the effect of hydrothermal cooling of the seafloor and the absence of an accretionary prism. Initial geotherms of the incoming plate, representing different effective cooling depths...
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Full Text:: Nicoya Peninsula, Costa Rica Robert N. Harris Department of Geology and Geophysics, University of Utah

Creator:: Beltrami, Hugo, Ferguson, Grant, and Harris, Robert N.
Abstract:: Underground temperatures contain a record of past changes in the energy balance at the Earth's surface, such that borehole temperature data can be used to reconstruct long‐term trends of ground surface temperature (GST) changes. In addition to surface air temperature, however, GST is the response of the ground to other...
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Full Text:: , Antigonish, Nova Scotia, Canada Robert N. Harris College of Oceanic and Atmospheric Sciences, Oregon State

Creator:: Chapman, David S. and Harris, Robert N.
Abstract:: Temperature-depth profiles in borehole CC-I, northwestern Utah, were measured in 1978, 1990, and 1992. Borehole temperatures below 80 m depth are highly reproducible over the 14 year period indicating long term thermal stability. A slowly changing temperature field above 80 m depth has similiar characteristics to synthetic temperature profiles computed...
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Creator:: Chapman, David S., Bartlett, Marshall G., and Harriss, Robert N.
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Full Text:: David S. Chapman, Marshall G. Bartlett, and Robert N. Harris Department of Geology and Geophysics

Creator:: Fulton, Patrick M., Saffer, Demian M., Harris, Robert N., and Bekins, Barbara A.
Abstract:: Improved interpretations of the strength of the San Andreas Fault near Parkfield, CA based on thermal data require quantification of processes causing significant scatter and uncertainty in existing heat flow data. These effects include topographic refraction, heat advection by topographically-driven groundwater flow, and uncertainty in thermal conductivity. Here, we re-evaluate...
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Full Text:: : Evidence for a weak San Andreas Fault Patrick M. Fulton,1 Demian M. Saffer,1 Robert N. Harris,2 and

Creator:: Hautala, Susan L., Solomon, Evan A., Johnson, H. Paul, Harris, Robert N., and Miller, Una K.
Abstract:: Gas hydrates, pervasive in continental margin sediments, are expected to release methane in response to ocean warming, but the geographic range of dissociation and subsequent flux of methane to the ocean are not well constrained. Sediment column thermal models based on observed water column warming trends offshore Washington (USA) show...
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Creator:: Fisher, A. T., Stein, C. A., Harris, Robert N., Wang, K., Silver, E. A., Pfender, M., Hutnak, M., Cherkaoui, A., Bodzin, R., and Villinger, H.
Abstract:: New thermal data from 18–24 Ma lithosphere on the Cocos Plate delineate contrasting subsurface thermal conditions in adjacent sections of crust. Heat flow through seafloor created at the East Pacific Rise is generally suppressed by ~70% relative to conductive lithospheric cooling models, whereas heat flow through adjacent, similarly-aged lithosphere generated...
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Full Text:: boundary and role of seamounts within the Cocos Plate A. T. Fisher,1 C. A. Stein,2 R. N. Harris,3 K. Wang

Creator:: Mathis, Jeremy T., Pickart, Robert S., Byrne, Robert H., McNeil, Craig L., Moore, G. W. K., Juranek, Laurie W., Liu, Xuewu, Ma, Jian, Easley, Regina A., Elliot, Matthew M., Cross, Jessica N., Reisdorph, Stacey C., Bahr, Frank, Morison, Jamie, and Lichendorf, Trina
Abstract:: The carbon system of the western Arctic Ocean is undergoing a rapid transition as sea ice extent and thickness decline. These processes are dynamically forcing the region, with unknown consequences for CO2 fluxes and carbonate mineral saturation states, particularly in the coastal regions where sensitive ecosystems are already under threat...
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Full Text:: T. Mathis,1 Robert S. Pickart,2 Robert H. Byrne,3 Craig L. McNeil,4 G. W. K. Moore,5 Laurie W

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