Leeman WP, Sisson VB (1996) Geochemistry of boron and its implications for crustal and mantle processes. Hu H, Brown PH (1997) Absorption of boron by plant roots. Hemming NG, Hanson GN (1992) Boron isotopic composition and concentration in modern marine carbonates. Haynes WM (2015) CRC handbook of chemistry and physics, 95th edn. Hawthorne FC (1996) Structural mechanisms for light-element variations in tourmaline. Goldschmidt VM (1926) Geochemische Verteilungsgesetze der Elemente. Gill JB (1981) Orogenic Andesites and plate tectonics. Department of the Interior Reston, Vinginia. In: Morgan LA (ed) Integrated geoscience studies in the greater Yellowstone area: volcanic, tectonic, and hydrothermal processes in the Yellowstone Geoecosystem: U.S. Gemery-Hill PA, Shanks WCIII, Balistrieri LS, Lee GK (2007) Geochemical data for selected drivers, lake waters, hydrothermal vents, and subaerial geysers in Yellowstone National Park.
Gay-Lussac JL, Thénard LJ (1808) Sur la décomposition et la recomposition de l’acide boracique. Plant Sci 163:931–942įelmy A, Weare JH (1986) The prediction of borate mineral equilibria in natural waters: application to Searles Lake, California. Phil Trans R Soc London 98:333–370ĭembitsky VM, Smoum R, Al-Quntar AA, Ali HA, Pergament I, Srebnik M (2002) Natural occurrence of boron-containing compounds in plants, algae and microorganisms. Science 157:59–61ĭavy H (1808) Electro-chemical researches, on the decomposition of the Earths with observations on the metals obtained from the alkaline earths, and on the amalgam procured from ammonia. National Institute of Standards and Technology, GaithersburgĬulberson C, Pytkowicz RM (1967) Effect of pressure on carbonic acid, boric acid and the pH of seawater. Environ Sci Technol 13:189–196Ĭoursey JS, Schwab DJ, Tsai JJ, Dragoset RA (2010) Atomic weights and isotopic compositions. Nature 374:337–339Ĭhoi W-W, Chen KY (1979) Evaluation of boron removal by adsorption on solids. Earth Planet Sci Lett 121:277–291Ĭhaussidon M, Robert F (1995) Nucleosynthesis of 11B-rich boron in the presolar cloud recorded in meteoric chondrules. CR Acad Sci Paris 321:455–472Ĭhaussidon M, Jambon A (1994) Boron content and isotopic composition of oceanic basalts: geochemical and cosmochemical implications. Special publication 206–17, 70 ppĬhaussidon M (1995) Isotope geochemistry of boron in mantle rocks, tektites and meteorites. Ecotoxicol Environ Saf 17:339–371Ĭatanzaro EJ, Champion CE, Garner EL, Marinenko G, Sappenfield KM, Shields WR (1970) Standard reference materials: boric acid Isotopic, and assay standard reference materials. Pergamon Press, Oxford, p 165īutterwick L, de Oude N, Raymond K (1989) Safety assessment of boron in aquatic and terrestrial environments. 690 ppīrown J, Colling A, Park D, Philliips J, Rothery D, Wright J (1989) Seawater: its composition, properties and behaviour. Earth Planet Sci Lett 171:63–82īroecker WS, Peng T-H (1982) Tracers in the sea. Ann Inst Pasteur (Paris) 24:321–329īebout GE, Ryan JG, Leeman WP, Bebout AE (1999) Fractionation of trace elements by subduction-zone metamorphism – effect of convergent margin thermal evolution. Geochim Cosmochim Acta 64:579–585Īgulhon H (1910) Présence et utilité du bore chez les végétaux.
#Boron natural abundance how to#
The sample problem below demonstrates how to calculate the atomic mass of chlorine.Aggarwal J, Palmer MR, Bullen TD, Arnorsson S, Ragnarsdottir KV (2000) The boron isotope systematics of Icelandic geothermal waters: 1. The atomic mass of an element is the weighted average of the atomic masses of the naturally occurring isotopes of that element. Why? We need to take into account the percent natural abundance of each isotope, in order to calculate the weighted average. \nonumber \]Ĭlearly the actual average atomic mass from the last column of the table is significantly lower.
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