Mathematics – Logic
Scientific paper
Nov 1970
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970e%26psl...9..348b&link_type=abstract
Earth and Planetary Science Letters, Volume 9, Issue 4, p. 348-354.
Mathematics
Logic
11
Scientific paper
Deposition rates of iron on the East Pacific Rise are 4-30 times larger than in surrounding areas of the Pacific, suggesting local volcanism to be the source of iron. The distributions of Co, Ni, Mn, Ti and Al support this conclusion.ReferencesBoströmK.PetersonM.N.A.Origin of aluminum-poor ferromanganoan sediments in areas of high heat flow on the East Pacific RiseMarine Geology71969427477BoströmK.PetersonM.N.A.JoensuuO.FisherD.E.Aluminum-poor ferromanganoan sediments on active oceanic ridgesJ. Geophys. Res.74196932613270BoströmK.ValdesS.Arsenic in ocean floorsLithos21969351360BoströmK.FisherD.E.Distribution of mercury in East Pacific sedimentsGeochim. Cosmochim. Acta331969743745FisherD.E.BoströmK.Uranium rich sediments on East Pacific RiseNature22419696465BoströmK.Geochemical evidence of ocean floor spreading in South Atlantic OceanNature1970in pressBoströmK.Origin of iron-rich sediments on the East Pacific Rise511970327BenderM.BroeckerW.GornitzV.MiddelU.Accumulation rate of manganese and related elements in the sediments from the East Pacific Rise511970327RevelleR.R.Marine bottom samples, collected in the Pacific by the Carnegie on its 7th cruiseCarnegie Inst. Wash. Publ.5561944GoldbergE.ArrheniusG.Chemistry of Pacific pelagic sedimentsGeochim. Cosmochim. Acta131958153212El-WakeelS.K.RileyJ.P.Chemical and mineralogical studies of deep-sea sedimentsGeochim. Cosmochim. Acta251961110146LandergrenS.On the chemistry of deep-sea sedimentsRepts. Swedish Deep Sea Exped., X, Spec. Invest. No. 51964GothenburgKuT.L.BroeckerW.S.OpdykeN.Comparison of sedimentation rates measured by paleomagnetic and the ionium methods of age determinationEarth Planet. Sci. Letters41968116EricsonD.B.WollinG.Pleistocene climates in the Atlantic and Pacific Oceans: A comparison based on deep-sea sedimentsScience167197014831485BlackmanA.SomayajuluB.L.K.Pacific Pleistocene cores: Faunal analyses and geochronologyScience1541966886889BlackmanA.Pleisocene stratigraphy of cores from the Southeast Pacific OceanPh. D. Dissertation1966Univ. Calif. at San DiegoThe density of pelagic surface sediments commonly varies between 1.40 and 1.80 g/cm3 and the water content between 40-60% by weight. (Data from A.F. Richards, Tech. Rept. TR106, Investigations of deep-sea sedimentcores, II. U.S. Nay Hydrographic Office, Washington, D.C., 1962.) A common in situ density for dry uncompressed pelagic sediment is 0.65-0.85 g/cm3; the uncertainty in this figure is only of minor significance for the discussion here.The accumulation rates determined in this way are located at 0.5° S-85.5° W, 0° S-104° W, 2.8° S-112.5° W, 14.2° S-113.5° W, 14.2° S-114.5° W, 21.5° S- 81.5° W, 26.5° S-115.5° W, 27.7° S-107° W, 46.5° S- 113.5° W and 46.7° S-123.5° W.
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