ELSEVIER Earth and Planetary Science Letters I50 (1997) IS I- 160 EPSL Distribution of 230Th in the Labrador Sea and its relation ito ventilation
Measurements of dissolved and particulate 230Th anti “ ’ Th by thermal ionization mass spectrometry were made on samples collected from the Labrador Sea and the Denmark Strait and Iceland-Scotland overflow waters. The1 large-scale feature of low and invariant 230Th evident in deep waters of the Labr...
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| Format: | Text |
| Language: | English |
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1996
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.4585 http://www.whoi.edu/science/MCG/groundwater/pubs/PDF/moran et al 97 epsl.pdf |
| Summary: | Measurements of dissolved and particulate 230Th anti “ ’ Th by thermal ionization mass spectrometry were made on samples collected from the Labrador Sea and the Denmark Strait and Iceland-Scotland overflow waters. The1 large-scale feature of low and invariant 230Th evident in deep waters of the Labrador Sea and previously observed in the ddep northern Atlantic can be reproduced using a reversible scavenging model that includes the effect of ventilation. Advectibe transport also must be important in the redistribution of 230Th in other regions of the Atlantic and for other long-lived traaers, such as |
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