Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Emily R. Giambalvo"'
Autor:
Kimberley D. Hoke, Andrew T. Fisher, Glenn A. Spinelli, Michael B. Underwood, Earl E. Davis, Emily R. Giambalvo, Lars Zühlsdorff
Publikováno v:
Journal of Sedimentary Research. 75:149-164
The northwestern edge of Cascadia Basin (North Pacific Ocean) is unusual because late Pliocene to Holocene turbidites lap onto juvenile oceanic crust of the Juan de Fuca Ridge. Subsidence of the ridge flank combines with irregular westward progradati
Publikováno v:
Geochimica et Cosmochimica Acta. 66:1739-1757
On the eastern flank of the Juan de Fuca Ridge, reaction between upwelling basement fluid and sediment alters hydrothermal fluxes of Ca, SiO2(aq), SO4, PO4, NH4, and alkalinity. We used the Global Implicit Multicomponent Reactive Transport (GIMRT) co
Autor:
Barbara Ransom, Andrew T. Fisher, Yishai Weinstein, Peter Lonsdale, Miriam Kastner, Emily R. Giambalvo, John G. Sclater
Publikováno v:
Earth and Planetary Science Letters. 188:521-534
New seismic, heat flow, sediment and pore fluid geochemistry data from the east flank of Alarcon Ridge, at the mouth of the Gulf of California, provide evidence for vigorous hydrothermal circulation within young oceanic crust formed at a moderate-rat
Publikováno v:
Journal of Geophysical Research: Solid Earth. 105:913-928
Elevated sediment porosity and permeability may help to focus upward fluid seepage observed over a buried basement high on the eastern flank of the Juan de Fuca Ridge. Consolidation and permeability tests of fine-grained hemipelagic and turbidite sed
Hydrothermal seepage patterns above a buried basement ridge, eastern flank of the Juan de Fuca Ridge
Autor:
Volkhard Spieß, Emily R. Giambalvo, Glenn A. Spinelli, Lars Zühlsdorff, C. G. Wheat, Michael J. Mottl, Andrew T. Fisher
Publikováno v:
Journal of Geophysical Research: Solid Earth. 109
proportion ofhemipelagic material, from 2 � 10 � 16 m 2 at30% hemipelagic to6 � 10 � 18 m 2 at 95% hemipelagic. Modeled seepage rates, derived from basement overpressures and sediment physical properties, range from 0 to 27 mm/yr. The average
Publikováno v:
Geophysical Research Letters. 30
10 10 mol P yr 1 . This value is larger (130%) than the riverine dissolvedfluxofinorganicphosphateandisasmuchas35%of the sedimentary P sink. The concordant seawater flux (2.1 10 16 kg yr 1 ) is 65% of the riverine fluid flux and circulates a fluidvol