Sediment trap experiments in the water column off southwestern Taiwan:234Th fluxes | Zendy

ChingLing Wei | Zendy; Kwung-Lung Jen | Zendy; Kenson Chu | Zendy

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Sediment trap experiments in the water column off southwestern Taiwan:234Th fluxes

Author(s) -

ChingLing Wei,

Kwung-Lung Jen,

Kenson Chu

Publication year - 1994

Publication title -

journal of oceanography

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.604

H-Index - 71

eISSN - 1573-868X

pISSN - 0916-8370

DOI - 10.1007/bf02234963

Subject(s) - sediment trap , water column , photic zone , particulates , scavenging , sediment , oceanography , residence time (fluid dynamics) , environmental chemistry , environmental science , total organic carbon , hydrology (agriculture) , carbon fibers , geology , atmospheric sciences , chemistry , geomorphology , phytoplankton , biochemistry , geotechnical engineering , organic chemistry , nutrient , antioxidant , materials science , composite number , composite material

The activity ofTh (=24.1 days) in dissolved, particulate and sediment trap samples was determined in the water column off southwestern Taiwan during 2–4 October, 1993. VerticalTh fluxes measured by the free-floating sediment traps ranged from 363 to 2290 dpm m d in the upper 450 m. Th-234 fluxes predicted from the irreversible scavenging model concur with those measured by the sediment traps. Comparison of the residence times of particulateTh and particulate organic carbon showed that their respective values differ by a factor of approximately 2∼3, which suggests organic carbon is preferentially recycled relative toTh in the euphotic zone.

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