Reliability of the 231Pa p30Th Activity Ratio
407
Ku T -L, Bischoff lL, Boersma A (1972) Age studies of
Mid-Atlantic Ridge sediments near 42 degrees Nand
20 degrees N. Deep-Sea Res and Oceanogr Abstr 19,
3:233-247
Kumar N (1994) Trace metals and natural radionuclides
as tracers of ocean productivity. PhD Thesis, Columbia University, New York, pp 1-317
KumarN, GwiazdaR, AndersonRF, Froelich PN (1993)
231paJ230Th ratios in sediments as a proxy for past
changes in Southern Ocean productivity. Nature 362:
4548
Kumar N, Anderson RF, Mortlock RA, Froelich PN,
Kubik P, Dittrich-Hannen B, Suter M (1995) Increased
biological productivity and export production in the
glacial Southern Ocean. Nature 378: 675-680
Lao Y, Anderson RF, Broecker WS (1992a) Boundary
scavenging and deep-sea sediment dating: constraints from excess 230Th and 231Pa.
Paleoceanography 7: 783-798
Lao Y, Anderson RF, Broecker WS, Trumbore SE,
Hofinann HJ, Wolfi W (1992b) Transport and burial
rates of lOBe and 231Pa in the Pacific Ocean during
the Holocene period. Earth Planet Sci Lett 113:
173-189
Lao Y, Anderson RF, Broecker WS, Hofinann HJ, Wolfi
W (1993) Particulate fluxes of 23 0'[h, 231pa, lOBe in the
northeastern Pacific Ocean. Geochim Cosmochim
Acta 57(1): 205-217
Legeleux F (1994) Relations entre particules marines et
message sedimentaire: flux de matiere dans la
colonne d'eau et transformations a I' interface eausediment dans l'ocean atlantique tropical du nordest. PhD Thesis, University of Paris, pp 1-232
Mangini A, Sonntag C (1977) 231Pa dating of deep-sea
cores via 227Th counting. Earth Planet Sci Lett 37:
251-256
Mangini A, Diester-Haas L (1983) Excess Th-230 in
sediments off NW Africa traces upwelling in the
past. In: Thiede J, Suess E (eds) Coastal upwelling:
Its Sediment Record (Part B). Plenum, New York,
pp455470
Mangini A, Kuehnel U (1987) Depositional history in
the Clarion-Clipperton zone during the last 250,000
years; 230Th and 231Pa methods. Geol Jahrb D 87:
105-121
Moran SB, Hoff JA, Buesseler KO, Edwards RL (1995)
High precision 230Th and 232Th in the Norwegian
Sea and Denmark by thermal ionization mass
spectrometry. Geophys Res Lett 22: 2589-2592
Moran SB, HoffJA, Edwards RL, Charette MA Landing
WM Distribution of 23 0 Th in the Labrador Sea and
its relation to ventilation. Earth Planet Sci Lett, in
press
Miiller PJ, Mangini A (1980) Organic carbon decomposition rates in sediments of the Pacific manganese
nodule belt dated by 230Th and 231Pa. Earth Planet
Sci Lett 5 I: 94-114
Nozaki Y, Nakanishi T (1985) 231Pa and 230Th profiles in
the open ocean water column. Deep-Sea Res 32:
1209-1220
Nozaki Y, Yamada M (1987) Thorium and protactinium
isotope distributions in waters of the Japan Sea.
Deep-Sea Res 34: 1417-1430
Nozaki Y, Horibe Y, TsubotaH(l981) The water colurnn
distributions of thorium isotopes in the western
North Pacific. Earth Planet Sci Lett 54: 203-216
Orsi AH, Whitworth III T, Nowlin WD (1995) On the
meridional extent and fronts of the Antarctic
Circumpolar Current. Deep-Sea Res 42 (5): 641-673
Pudsey CJ, Barker PF, Hamilton N (1988) Weddell Sea
abyssal sediments: A record of Antarctic Bottom
WaterFlow. Mar Geol 81: 289-314
Rutgers van der LoeffMM, Berger GW (1991) Scavenging and particle flux: seasonal and regional variations
in the Southern Ocean (Atlantic sector). Mar Chern
35:553-568
Rutgers van der LoeffMM, BergerGW (1993) Scavenging of230Th and 231Pa near the Antarctic Polar Front
in the South Atlantic. Deep-Sea Res 40: 339-357
Schliiter M, Rutgers van der Loeff MM, Holby 0,
Kuhn G Silica cycle in surface sediments of the South
Atlantic. Deep-Sea Res, subm
Schmitz W, Mangini A, Stoffers P, Glasby GP, Plueger
WL (1986) Sediment Accumulation rates in the
Southwestern Pacific Basin and Aitutaki passage.
Mar Geol 73: 181-190
Scholten JC, Rutgers van der LoeffMM, Michel A (1995)
Distribution of2 3 0Th and 231Pa in the water-column
in relation to the ventilation of the deep Arctic basins. Deep-Sea Res II, 42: 1519-1531
Shimrnield GB, Price NB (1988) The scavenging ofu, of
230Th and 231Pa during pulsed hydrothermal activity
at 20 0 S East Pacific Rise. Geochim Cosmochim Acta
52:669-677
Shimmield GB, Murray JW, Thomson J, Bacon MP,
Anderson RF, Price NB (1986) The distribution and
behaviour of2 3 0Th and 231Pa at an ocean margin, Baja
California, Mexico. Geochim Cosmochim Acta 50:
2499-2507
407
Ku T -L, Bischoff lL, Boersma A (1972) Age studies of
Mid-Atlantic Ridge sediments near 42 degrees Nand
20 degrees N. Deep-Sea Res and Oceanogr Abstr 19,
3:233-247
Kumar N (1994) Trace metals and natural radionuclides
as tracers of ocean productivity. PhD Thesis, Columbia University, New York, pp 1-317
KumarN, GwiazdaR, AndersonRF, Froelich PN (1993)
231paJ230Th ratios in sediments as a proxy for past
changes in Southern Ocean productivity. Nature 362:
4548
Kumar N, Anderson RF, Mortlock RA, Froelich PN,
Kubik P, Dittrich-Hannen B, Suter M (1995) Increased
biological productivity and export production in the
glacial Southern Ocean. Nature 378: 675-680
Lao Y, Anderson RF, Broecker WS (1992a) Boundary
scavenging and deep-sea sediment dating: constraints from excess 230Th and 231Pa.
Paleoceanography 7: 783-798
Lao Y, Anderson RF, Broecker WS, Trumbore SE,
Hofinann HJ, Wolfi W (1992b) Transport and burial
rates of lOBe and 231Pa in the Pacific Ocean during
the Holocene period. Earth Planet Sci Lett 113:
173-189
Lao Y, Anderson RF, Broecker WS, Hofinann HJ, Wolfi
W (1993) Particulate fluxes of 23 0'[h, 231pa, lOBe in the
northeastern Pacific Ocean. Geochim Cosmochim
Acta 57(1): 205-217
Legeleux F (1994) Relations entre particules marines et
message sedimentaire: flux de matiere dans la
colonne d'eau et transformations a I' interface eausediment dans l'ocean atlantique tropical du nordest. PhD Thesis, University of Paris, pp 1-232
Mangini A, Sonntag C (1977) 231Pa dating of deep-sea
cores via 227Th counting. Earth Planet Sci Lett 37:
251-256
Mangini A, Diester-Haas L (1983) Excess Th-230 in
sediments off NW Africa traces upwelling in the
past. In: Thiede J, Suess E (eds) Coastal upwelling:
Its Sediment Record (Part B). Plenum, New York,
pp455470
Mangini A, Kuehnel U (1987) Depositional history in
the Clarion-Clipperton zone during the last 250,000
years; 230Th and 231Pa methods. Geol Jahrb D 87:
105-121
Moran SB, Hoff JA, Buesseler KO, Edwards RL (1995)
High precision 230Th and 232Th in the Norwegian
Sea and Denmark by thermal ionization mass
spectrometry. Geophys Res Lett 22: 2589-2592
Moran SB, HoffJA, Edwards RL, Charette MA Landing
WM Distribution of 23 0 Th in the Labrador Sea and
its relation to ventilation. Earth Planet Sci Lett, in
press
Miiller PJ, Mangini A (1980) Organic carbon decomposition rates in sediments of the Pacific manganese
nodule belt dated by 230Th and 231Pa. Earth Planet
Sci Lett 5 I: 94-114
Nozaki Y, Nakanishi T (1985) 231Pa and 230Th profiles in
the open ocean water column. Deep-Sea Res 32:
1209-1220
Nozaki Y, Yamada M (1987) Thorium and protactinium
isotope distributions in waters of the Japan Sea.
Deep-Sea Res 34: 1417-1430
Nozaki Y, Horibe Y, TsubotaH(l981) The water colurnn
distributions of thorium isotopes in the western
North Pacific. Earth Planet Sci Lett 54: 203-216
Orsi AH, Whitworth III T, Nowlin WD (1995) On the
meridional extent and fronts of the Antarctic
Circumpolar Current. Deep-Sea Res 42 (5): 641-673
Pudsey CJ, Barker PF, Hamilton N (1988) Weddell Sea
abyssal sediments: A record of Antarctic Bottom
WaterFlow. Mar Geol 81: 289-314
Rutgers van der LoeffMM, Berger GW (1991) Scavenging and particle flux: seasonal and regional variations
in the Southern Ocean (Atlantic sector). Mar Chern
35:553-568
Rutgers van der LoeffMM, BergerGW (1993) Scavenging of230Th and 231Pa near the Antarctic Polar Front
in the South Atlantic. Deep-Sea Res 40: 339-357
Schliiter M, Rutgers van der Loeff MM, Holby 0,
Kuhn G Silica cycle in surface sediments of the South
Atlantic. Deep-Sea Res, subm
Schmitz W, Mangini A, Stoffers P, Glasby GP, Plueger
WL (1986) Sediment Accumulation rates in the
Southwestern Pacific Basin and Aitutaki passage.
Mar Geol 73: 181-190
Scholten JC, Rutgers van der LoeffMM, Michel A (1995)
Distribution of2 3 0Th and 231Pa in the water-column
in relation to the ventilation of the deep Arctic basins. Deep-Sea Res II, 42: 1519-1531
Shimrnield GB, Price NB (1988) The scavenging ofu, of
230Th and 231Pa during pulsed hydrothermal activity
at 20 0 S East Pacific Rise. Geochim Cosmochim Acta
52:669-677
Shimmield GB, Murray JW, Thomson J, Bacon MP,
Anderson RF, Price NB (1986) The distribution and
behaviour of2 3 0Th and 231Pa at an ocean margin, Baja
California, Mexico. Geochim Cosmochim Acta 50:
2499-2507