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Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia

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dc.contributor Australian Institute Of Marine Science
dc.contributor Sch Geog & Environm Studies
dc.contributor Univ Tasmania
dc.contributor University Of Tasmania
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor.author ELLISON, J
dc.contributor.author BRUNSKILL, GJ
dc.contributor.author ZAGORSKIS, I
dc.contributor.author PFITZNER, J
dc.date.accessioned 2013-02-28T06:42:13Z
dc.date.accessioned 2017-03-21T00:57:10Z
dc.date.accessioned 2017-03-21T00:57:10Z
dc.date.accessioned 2019-05-09T01:10:25Z
dc.date.available 2013-02-28T06:42:13Z
dc.date.available 2017-03-21T00:57:10Z
dc.date.available 2017-03-21T00:57:10Z
dc.date.available 2019-05-09T01:10:25Z
dc.date.issued 2004-12-01
dc.identifier 6844 en
dc.identifier.citation Brunskill GJ, Zagorskis IE, Pfitzner J and Ellison JC (2004) Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia. Continental Shelf Research. 24: 2535-2551. en
dc.identifier.issn 0278-4343
dc.identifier.uri http://epubs.aims.gov.au/11068/6844
dc.description Link to abstract/full text - http://dx.doi.org/10.1016/j.csr.2004.07.024 en
dc.description.abstract Radiotracer Pb-210 and contaminant copper were used to estimate sediment accumulation rates in 4 cores from the Ajkwa River estuary and mangrove tidal channels in western Irian Jaya. Mass accumulation rates (4.5-13 kg dry wt m(-2) yr(-1)) were within the envelope of expectations for a region of high rainfall, great river catchment relief, and rapid tectonic uplift of mountains. Copper accumulation rates were enhanced 40 fold in surface sediments, compared to pre-1950 sections of the sediment cores. These recent sediments with enhanced copper concentrations come from Freeport Indonesia mine tailings over the last 27 years. Variations in sediment core profiles of Al, Fe, and organic carbon were small, indicating no great change in bulk sediment composition. Sulfur concentrations decline toward the sediment surface, suggesting a decline in rates of microbial sulfate reduction. Enhanced sediment copper concentrations will be a useful tracer of sediment dispersal from the Ajkwa River estuary along this coast. (C) 2004 Elsevier Ltd. All rights reserved.
dc.description.uri http://dx.doi.org/10.1016/j.csr.2004.07.024 en
dc.language English
dc.language en en
dc.relation.ispartof Continental Shelf Research - pages: 24: 2535-2551 en
dc.relation.ispartof Null
dc.relation.uri https://apps.aims.gov.au/metadata/view/648eaf60-4ade-11dc-8f56-00008a07204e
dc.subject (4 Degrees-5 Degrees S
dc.subject Irian Jaya
dc.subject Gulf-of-papua
dc.subject Discharge
dc.subject Ajkwa River Estuary
dc.subject Sea
dc.subject 136 Degrees-137 Degrees E)
dc.subject Small Mountainous Rivers
dc.subject Copper
dc.subject Highlands
dc.subject Fly River
dc.subject Oceanography
dc.subject New-guinea
dc.subject Matter
dc.subject Trace Elements
dc.subject Carbon
dc.subject Mangrove Sedimentation Rates
dc.title Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia
dc.type journal article en
dc.identifier.doi 10.1016/j.csr.2004.07.024
dc.identifier.wos WOS:000225757100014


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