Search Results - "Fisher, A. T."

Borehole-to-borehole hydrologic response across 2.4 km in the upper oceanic crust: Implications for crustal-scale properties by Fisher, A. T., Davis, E. E., Becker, K.

“…Subseafloor hydrologic observatories (CORKs) were installed in four boreholes in young seafloor on the eastern flank of the Juan de Fuca ridge to evaluate the…”
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Influence of sedimentation, local and regional hydrothermal circulation, and thermal rebound on measurements of seafloor heat flux by Hutnak, M., Fisher, A. T.

“…We quantify the influence of environmental processes on measurements of seafloor heat flux with a new one‐dimensional thermal model that includes time‐varying…”
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Large heat and fluid fluxes driven through mid-plate outcrops on ocean crust by Hutnak, M, Fisher, A. T, Harris, R, Stein, C, Wang, K, Spinelli, G, Schindler, M, Villinger, H, Silver, E

“…Hydrothermal circulation on the sea floor at mid-ocean ridge flanks extracts ∼30% of heat from the oceanic lithosphere on a global basis and affects numerous…”
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Borehole packer tests at multiple depths resolve distinct hydrologic intervals in 3.5-Ma upper oceanic crust on the eastern flank of Juan de Fuca Ridge by Becker, K., Fisher, A. T.

“…Single‐hole hydrogeologic experiments were conducted with a drillstring packer in Integrated Ocean Drilling Program Hole 1301B, which penetrates 318 m into…”
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Channelized fluid flow in oceanic crust reconciles heat-flow and permeability data by Fisher, A. T, Becker, K

“…Hydrothermal fluid circulation within the sea floor profoundly influences the physical, chemical and biological state of the crust and the oceans. Circulation…”
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Hydrothermal recharge and discharge across 50 km guided by seamounts on a young ridge flank by Fisher, A. T, Davis, E. E, Hutnak, M, Spiess, V, Zühlsdorff, L, Cherkaoui, A, Christiansen, L, Edwards, K, Macdonald, R, Villinger, H, Mottl, M. J, Wheat, C. G, Becker, K

“…Hydrothermal circulation within the sea floor, through lithosphere older than one million years (Myr), is responsible for 30% of the energy released from plate…”
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Differential gauging and tracer tests resolve seepage fluxes in a strongly-losing stream by Ruehl, C., Fisher, A.T., Hatch, C., Huertos, M. Los, Stemler, G., Shennan, C.

“…The Pajaro River, central coastal California, consistently loses 0.2–0.4 m 3/s of discharge along an 11.42-km experimental reach late in the water year, when…”
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Marine hydrogeology: recent accomplishments and future opportunities by Fisher, A T

“…Issue Title: The Future of Hydrogeology Marine hydrogeology is a broad-ranging scientific discipline involving the exploration of fluid-rock interactions below…”
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Abrupt thermal transition reveals hydrothermal boundary and role of seamounts within the Cocos Plate by Fisher, A. T., Stein, C. A., Harris, R. N., Wang, K., Silver, E. A., Pfender, M., Hutnak, M., Cherkaoui, A., Bodzin, R., Villinger, H.

“…New thermal data from 18–24 Ma lithosphere on the Cocos Plate delineate contrasting subsurface thermal conditions in adjacent sections of crust. Heat flow…”
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Physical properties of young (3.5 Ma) oceanic crust from the eastern flank of the Juan de Fuca Ridge: Comparison of wireline and core measurements with global data by Bartetzko, A., Fisher, A. T.

“…We compile and compare petrophysical data from the upper oceanic crust in Hole U1301B, on 3.5 Ma seafloor on the eastern flank of the Juan de Fuca Ridge…”
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Coupling distributed stormwater collection and managed aquifer recharge: Field application and implications by Beganskas, S., Fisher, A.T.

“…Groundwater is increasingly important for satisfying California's growing fresh water demand. Strategies like managed aquifer recharge (MAR) can improve…”
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Regional heat flow variations across the sedimented Juan de Fuca Ridge eastern flank: Constraints on lithospheric cooling and lateral hydrothermal heat transport by Davis, E. E., Chapman, D. S., Wang, K., Villinger, H., Fisher, A. T., Robinson, S. W., Grigel, J., Pribnow, D., Stein, J., Becker, K.

“…Seafloor heat flow has been estimated continuously along a transect on the sedimented eastern flank of the Juan de Fuca Ridge to provide constraints on the…”
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Provenance, stratigraphic architecture, and hydrogeologic influence of turbidites on the mid-ocean ridge flank of northwestern Cascadia Basin, Pacific Ocean by Underwood, Michael B, Hoke, Kimberley D, Fisher, Andrew T, Davis, Earl E, Giambalvo, Emily, Zühlsdorff, Lars, Spinelli, Glenn A

“…The northwestern edge of Cascadia Basin (North Pacific Ocean) is unusual because late Pliocene to Holocene turbidites lap onto juvenile oceanic crust of the…”
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The permeability of young oceanic crust east of Juan de Fuca Ridge Determined using borehole thermal measurements by Fisher, A. T., Becker, K., Davis, E. E.

“…Temperature measurements made in Ocean Drilling Program (ODP) Hole 1026B, drilled into a sediment‐buried basement ridge in 3.5 m.y. old crust on the eastern…”
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Permeability of upper oceanic basement on the eastern flank of the Juan de Fuca Ridge determined with drill-string packer experiments by Becker, Keir, Fisher, Andrew T.

“…We report drill‐string packer measurements of permeabilities of uppermost basement at three sites drilled during Leg 168 of the Ocean Drilling Program in 0.9‐…”
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Cross-hole tracer experiment reveals rapid fluid flow and low effective porosity in the upper oceanic crust by Neira, N.M., Clark, J.F., Fisher, A.T., Wheat, C.G., Haymon, R.M., Becker, K.

“…Numerous field, laboratory, and modeling studies have explored the flows of fluid, heat, and solutes during seafloor hydrothermal circulation, but it has been…”
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Assessment of Heart Rate Variability in 4–6 Year-Old Children in Contrast Hardening by Bobreshova, S. S., Malinina, E. I., Turbasova, N. V., Fisher, T. A., Solov’jova, S. V.

“…The article presents the results of assessing the features of heart rate variability (HRV) in children of senior preschool age (4–6 years old) who are engaged…”
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Subglacial Lake Whillans microbial biogeochemistry: a synthesis of current knowledge by Mikucki, J. A., Lee, P. A., Ghosh, D., Purcell, A. M., Mitchell, A. C., Mankoff, K. D., Fisher, A. T., Tulaczyk, S., Carter, S., Siegfried, M. R., Fricker, H. A., Hodson, T., Coenen, J., Powell, R., Scherer, R., Vick-Majors, T., Achberger, A. A., Christner, B. C., Tranter, M.

“…Liquid water occurs below glaciers and ice sheets globally, enabling the existence of an array of aquatic microbial ecosystems. In Antarctica, large subglacial…”
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Groundwater Provides and Receives Hydrologic System Services by Fisher, A.T.

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Hydrothermal seepage patterns above a buried basement ridge, eastern flank of the Juan de Fuca Ridge by Spinelli, G. A., Zühlsdorff, L., Fisher, A. T., Wheat, C. G., Mottl, M., Spieß, V., Giambalvo, E. R.

“…We use the distributions of sediment physical properties and modeled basement overpressures to estimate the spatial distribution of fluid seepage through…”
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