Mass 4Th _700 dpm.m -. 2 d -1 300 — _ 500250 — 1 -300 \ 200 - 100 50 — 3000 _ 2000 034Th : Flux 1 2 3 4 5 6 1 2 3 4 5 1 2 3 % 6 0 0 1 0 0 0

doi:10.1201/9781482286489-52

Chapter

$Mass 4Th _700 dpm.m -. 2 d -1 300 — _ 500250 — 1 -300 \ 200 - 100 50 — 3000 _ 2000 034Th$

ABSTRACT

Figure 2: Temporal variations of total mass flux (0), particulate Th-234 flux (A) and Th-234 specific activity (0) at 200 m depth. A: off Calvi, from April 13 to May 20, 1986; 6 samples; 6.25 days per sample. B: off Calvi, from January 18 to March 3, 1987; 5 samples; 10 days per sample. C: off Nice, from March 26 to April 13, 1987; 3 samples; 6 days per sample.