Uranium has an oceanic residence time of 0.3 0.5 million years (Bloch, 1980; Dunk et al., 2002) – due to the uranyl carbonate ion which forms under oxic conditions – and strongly correlates to salinity (Chen et al., 1986; Pates and Muir, 2007).
Speciation is known to influence solubility, membrane transport and bioavailability, adsorptive phenomena and oceanic residence times, volatility, oxidation/reduction behavior, and even physical properties of solutions such as sound attenuation.
Downhole logging data from drillholes through basement formations, when integrated with recovered core and geophysical remote sensing data, can provide new insights into crustal accretion processes, lithosphere hydrogeology and associated alteration processes, and variations in the physical properties of the oceanic lithosphere over time.
Between the four profiles, significant differences were observed in the thickness of the resistive layer beyond expectations based on cooling of homogeneous oceanic lithosphere over time.
Godzilla is about to re-emerge from the oceanic depths, this time to wreck 3D havoc on San Francisco.
A thorough discussion of the challenges of replicating oceanic bubble residence times in the laboratory is found in Fuentes et al., who calculate that the time required for adsorption equilibrium to be reached is less than 0.05 ms, much shorter than typical bubble residence times in laboratory-scale sea spray tanks.
Advanced sonar equipment that can map oceanic areas 10,000 times larger than previously possible recently detected a shoal of eight million fish in a school the size of Manhattan off the coast of New Jersey.
The land water interface comprising of coastal zone is modified all the time by oceanic currents, waves and tidal oscillations.
And while she felt drawn to the sea and specialized in matters oceanic, she spent little time on the water, rarely ventured deeper than her ankles and never corrected the media's presumption that she was a frequent diver).
Recognition of this first example of PISI further suggests that interaction of a sufficiently large plume head with sufficiently dense oceanic lithosphere in Precambrian time may have triggered the modern regime of plate tectonics.
These wedges first back-stepped inland toward the NW in response to combined global sea-level rise and overall westward oceanic circulation, at a time when sediment supply could not keep pace with rapid absolute (eustatic) sea-level rise.
