Notes on the Holocene 231Pa/230Th dataset

This Th and Pa data was collated as part of a continuing project to understand the water-column and sedimentary distribution of 230Th and 231Pa through the use of an ocean general circulation model. The goal of this work is to test and improve the use of these radionuclides as proxies for sediment accumulation, paleo-productivity, and past ocean-circulation.

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The dataset: latitudes and longitudes are decimal; north and east are positive; Th and Pa measurements are in dpm/g; xs ratios have generally been corrected for any age decay but this is somewhat reference specific; where several Holocene values are available for the same site, the value closest to core-top has been used.

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References containing 231Pa/230Th ratios in Holocene sediment

  • Yu E. F. (1994) Variations in the particulate flux of 230Th and 231Pa and paleoceanographic applications of the 231Pa/230Th ratio. Ph. D., WHOI/MIT.
  • DeMaster D. J. (1979) The marine budgets of silica and 32Si. Ph. D., Yale.
  • Bacon M. P. and Rosholt J. N. (1982) Accumulation rates of 230Th, 231Pa, and some trasition metals on the Bermuda Rise. Geochim. Cosmochim. Acta 46, 651-666.
  • Mangini A. and Diester-Haas L. (1983) Excess Th-230 in sediments off NW Africa traces upwelling during the past 130,000 years. In Coastal upwelling: Its sedimentary records (ed. E. Suess and J. Thiede), pp. 455-470. Plenum.
  • Kumar N. (1994) Trace metals and natural radionuclides as tracers of ocean productivity. Ph.D., Columbia.
  • Yang H.-S., Nozaki Y., and Sakai H. (1986a) The distribution of 230Th and 231Pa in the deep-sea surface sediments of the Pacific Ocean. Geochim. Cosmochim. Acta 50, 81-89.
  • Anderson R. F., Bacon M. P., and Brewer P. G. (1983) Removal of 230Th and 231Pa from the open ocean. Earth Planet. Sci. Letters 62, 7-23.
  • Anderson R. F., Fleisher M. Q., Biscaye P. E., Kumar N., Dittrich B., Kubik P., and Suter M. (1994) Anomolous boundary scavenging in the Middle Atlantic Bight: evidence from 230Th, 231Pa, 10Be and 210Pb. Deep-Sea Res. 41(2/3), 537-561.
  • Ku T.-L. (1966) Uranium series disequilibrium in deep sea sediments. Ph.D., Columbia.
  • Ku T.-L., Bischoff J. L., and Boersma A. (1972) Age studies of Mid-Atlantic Ridge sediments near 42oN and 20oN. Earth Planet. Sci. Letters 19, 233-247.
  • Frank M., Eckhardt J.-D., Eisenhauer A., Kubik P. W., Dittrich-Hannen B., Segl M., and Manginin A. (1994) Beryllium-10, thorium-230 and protactinium-231 in Galapagos microplate sediments: Implications of hydrothermal activity and paleoproductivity changes during the last 100,000 years. Paleoceanography 9(4), 559-578.
  • Shimmield G. B., Murray J. W., Thomson J., Bacon M. P., Anderson R. F., and Price N. B. (1986) The distribution and behaviour of 230Th and 231Pa at an ocean margin, Baja California, Mexico. Geochim. Cosmochim. Acta 50, 2499-2507.
  • Frank M. (1996) Reconstruction of Late Quaternary environmental conditions applying the natural radionuclides 230Th, 10Be, 231Pa and 238U: A study of deep-sea sediments from the eastern sector of the Antarctic Circumpolar Current System. Ph. D., Alfred Wegener Institute for Polar and Marine Research.
  • Lao Y., Anderson R. F., Broecker W. S., Trumbore S. E., Hofmann H. J., and Wolfli W. (1992) Transport and burial rates of 10Be and 231Pa in the Pacific Ocean during the Holocene period. Earth Planet. Sci. Lett. 113, 173-189.
  • Francois R., Bacon M. P., and Altabet M. A. (1993) Glacial/interglacial changes in sediment rain rate in the SW indian sector of subantarcitc waters as recorded by 230Th, 231Pa, U, and d15N. Paleoceanog. 8(5), 611-629.
  • Anderson, R.F. personal correspondance.
  • Anderson R. F., Lao Y., Broecker W. S., Trumbore S. E., Hofmann H. J., and Wolfli W. (1990) Boundary scavenging in the Pacific Ocean: A comparison of 10Be and 231Pa. Earth Planet. Sci. Lett. 96, 287-304.
  • Mangini A. and Sonntag C. (1977) 231Pa dating of deep-sea cores via 227Th counting. Earth Planet. Sci. Lett. 37(2), 251-256.
  • Schmitz W., Mangini A., Stoffers P., Glasby G. P., and Plueger W. L. (1986) Sediment accumulation rates in the southwestern Pacific Basin and Aitutaki Passage.
  • Shimmield G. B. and Price N. B. (1988) The scavenging of U, 230Th, and 231Pa during pulsed hydrothermal activity at 20oS, East Pacific Rise. Geochim. Cosmochim. Acta 52, 669-677.
  • Yang Y.-L., Elderfield H., Pedersen T. F., and Ivanovich M. (1995) Geochemical record of the Panama basin during the last glacial maximum carbon event shows that the glacial ocean was not suboxic. Geology 23(12), 1115-1118.
  • Muller P. J. and Mangini A. (1980) Organic carbon decomposition rates in sediments of the Pacific manganese nodule belt dated by 230Th and 231Pa. Earth Planet. Sci. Letters 51, 94-114.
  • Mangini A. and Kuehnel U. (1987) Depositional history in the Clarion-Clipperton zone during the last 250,000 years; 230Th and 231Pa methods. Geol. Jahrbuch 87, 105-121.
  • Scholten J. C., Rutgers van der Loeff M. M., and Michel A. (1995) Distribution of 230Th and 231Pa in the water column in relation to the ventilation of the deep Arctic basins. Deep-Sea Res. 42(6), 1519-1531.
  • Walter H. J., Rutgers van der Loeff M. M., and Hoeltzen H. (1997) Enhanced scavenging of 231Pa relative to 230Th in the South Atlantic south of the Polar front: Implications for the use of the 231Pa/230Th ratio as a paleoproductivity proxy. Earth Planet. Sci. Lett. 149, 85-100.