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Geochemical mass balance for lithium, boron, and strontium in the Gulf of Papua, Papua New Guinea (Project TROPICS)

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dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor.author PFITZNER, J
dc.contributor.author BRUNSKILL, GJ
dc.contributor.author ZAGORSKIS, I
dc.date.accessioned 2017-03-21T01:28:13Z
dc.date.accessioned 2017-03-21T01:28:13Z
dc.date.accessioned 2013-02-28T06:54:16Z
dc.date.accessioned 2018-11-01T03:04:56Z
dc.date.available 2013-02-28T06:54:16Z
dc.date.available 2013-02-28T06:54:16Z
dc.date.available 2017-03-21T01:28:13Z
dc.date.available 2018-11-01T03:04:56Z
dc.date.issued 2003-09-01
dc.identifier 6531 en
dc.identifier.citation Brunskill GJ, Zagorskis IE and Pfitzner J (2003) Geochemical mass balance for lithium, boron, and strontium in the Gulf of Papua, Papua New Guinea (Project TROPICS). Geochimica et Cosmochimica Acta. 67: 3365-3383. en
dc.identifier.issn 0016-7037
dc.identifier.uri http://epubs.aims.gov.au/11068/6531
dc.description Link to abstract/full text - http://dx.doi.org/10.1016/S0016-7037(02)01410-2 en
dc.description.abstract A mass balance has been calculated for the elements Li, B, and Sr in the Gulf of Papua from sampling undertaken during 1993 to 1999. Parameters measured included Fly, Kikori, and Purari River inputs of dissolved and particulate phases, removal flux to sediment traps at the base of the continental shelf slope, and century-scale accumulation rates in shelf and slope sediments (derived from excess (210)Pb profiles in sediment cores). About 91% of river input Li was in particulate form, and there was conservative behavior of dissolved Li in the salinity gradient of the estuaries. Li accumulation rate in inner-shelf sediments was slightly less than river inputs, suggesting that more than 90% of Li river inputs were trapped in rapid aluminosilicate mud accumulation zones of the inner shelf (<50-m depth). Li removal rate to sediment traps at the base of the slope at similar to1000-m water depth was an order of magnitude smaller than the inner-shelf sedimentation. Export of Li to deep water Coral Sea was estimated to be 1.2 x 10(8) mol yr(-1), and this amount is equivalent to the riverine dissolved Li annual supply rate. About 66% of river input of B was in the particulate phase, and low dissolved B concentrations in freshwater were conservatively mixed with higher concentrations of B in seawater across the salinity gradient. Removal of B to inner-shelf sediments was about 83% of the total river input, indicating a small export of B (1.2 x 10(8) mol yr(-1)) to the Coral Sea. About half of the dissolved B input from rivers is sorbed to particles and trapped in inner-shelf sediments. Only 24% of river input of Sr was in particulate form, and low freshwater concentrations of dissolved Sr were conservatively mixed with higher concentrations of Sr in seawater across the salinity gradient. Only 20% of total river inputs of Sr were buried in shelf sediments, and there was a large export (7.3 x 10(8) mol yr(-1)) of Sr off the shelf to the Coral Sea. A sediment core from a rapidly accumulating mud deposition zone of the inner shelf shows twofold sympathetic variations in Li, B, and Sr/Ca supply rates over 200- to 1000-yr time intervals. Copyright (C) 2003 Elsevier Ltd.
dc.description.uri http://dx.doi.org/10.1016/S0016-7037(02)01410-2 en
dc.language English
dc.language en en
dc.relation.ispartof Geochimica et Cosmochimica Acta - pages: 67: 3365-3383 en
dc.relation.ispartof Null
dc.relation.uri https://apps.aims.gov.au/metadata/view/648eaf60-4ade-11dc-8f56-00008a07204e
dc.subject Great-barrier-reef
dc.subject Marine-sediments
dc.subject Dissolved Lithium
dc.subject Turbidity Maximum
dc.subject Torres Strait
dc.subject Himalayan Rivers
dc.subject Geochemistry & Geophysics
dc.subject Sediment Discharge
dc.subject Major World Rivers
dc.subject Small Mountainous Rivers
dc.subject Isotope Composition
dc.title Geochemical mass balance for lithium, boron, and strontium in the Gulf of Papua, Papua New Guinea (Project TROPICS)
dc.type journal article en
dc.identifier.doi 10.1016/S0016-7037(00)01410-2
dc.identifier.wos WOS:000185441300006


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