Radionuclides measured on water bottle samples during SONNE cruise SO202 (INOPEX) ...

Boundary scavenging, or the enhanced removal of adsorption-prone elements from the ocean in areas of high particle flux, is an often cited, though not well-quantified, concept used to understand the oceanic distribution of many trace metals. Because 230Th and 231Pa are produced uniformly from uraniu...

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Bibliographic Details
Main Authors: Hayes, Christopher T, Anderson, Robert F, Jaccard, Samuel L, Francois, Roger, Fleisher, Martin Q, Soon, Maureen, Gersonde, Rainer
Format: Dataset
Language:English
Published: PANGAEA 2013
Subjects:
Event label
Date/Time of event
Latitude of event
Longitude of event
Elevation of event
DEPTH, water
Pressure, water
Temperature, water
Salinity
Oxygen
Date
Thorium-232, dissolved
Thorium-232, dissolved, standard deviation
Thorium-230, dissolved
Thorium-230, dissolved, standard deviation
Protactinium-231, dissolved
Protactinium-231, dissolved, standard deviation
CTD/Rosette
CTD, Sea-Bird
see further details
SO202/1
Sonne
Hayes
Pacific
Subarctic
Online Access:https://dx.doi.org/10.1594/pangaea.811760
https://doi.pangaea.de/10.1594/PANGAEA.811760
Description
Summary:Boundary scavenging, or the enhanced removal of adsorption-prone elements from the ocean in areas of high particle flux, is an often cited, though not well-quantified, concept used to understand the oceanic distribution of many trace metals. Because 230Th and 231Pa are produced uniformly from uranium decay and removed differentially by scavenging, the process of boundary scavenging can be elucidated by a more detailed knowledge of their water column distributions. To this end, filtered seawater was collected across the gradients in particle flux which span the subarctic Pacific: in the west during the Innovative North Pacific Experiment (INOPEX) and in the east along Line P. Lateral concentration gradients of dissolved 230Th are small throughout the subarctic Pacific at 12 sites of variable particle flux. This contradicts the prediction of the traditional boundary scavenging model. A compilation of water column data from throughout the North Pacific reveals much larger lateral concentration gradients for ... : Supplement to: Hayes, Christopher T; Anderson, Robert F; Jaccard, Samuel L; Francois, Roger; Fleisher, Martin Q; Soon, Maureen; Gersonde, Rainer (2013): A new perspective on boundary scavenging in the North Pacific Ocean. Earth and Planetary Science Letters, 369-370, 86-97 ...

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