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  5.     <title>UTas ePrints - Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia</title>
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  13.     <meta content="Brunskill, G.J." name="eprints.creators_name" />
  14. <meta content="Zagorkis, I." name="eprints.creators_name" />
  15. <meta content="Pfitzner, J." name="eprints.creators_name" />
  16. <meta content="Ellison, J.C." name="eprints.creators_name" />
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  25. <meta content="Sediment and trace element depositional history from the
  26. Ajkwa River estuarine mangroves of Irian Jaya
  27. (West Papua), Indonesia" name="eprints.title" />
  28. <meta content="pub" name="eprints.ispublished" />
  29. <meta content="300801" name="eprints.subjects" />
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  31. <meta content="Ajkwa River estuary; Mangrove sedimentation rates; Trace elements" name="eprints.keywords" />
  32. <meta content="The definitive version is available at http://www.sciencedirect.com
  33. " name="eprints.note" />
  34. <meta content="Radiotracer 210Pb and contaminant copper were used to estimate sediment accumulation rates in 4 cores from the
  35. Ajkwa River estuary and mangrove tidal channels in western Irian Jaya. Mass accumulation rates
  36. (4.5–13 kg dry wtm2 yr1) were within the envelope of expectations for a region of high rainfall, great river catchment
  37. relief, and rapid tectonic uplift of mountains. Copper accumulation rates were enhanced 40 fold in surface sediments,
  38. compared to pre-1950 sections of the sediment cores. These recent sediments with enhanced copper
  39. concentrations come from Freeport Indonesia mine tailings over the last 27 years. Variations in sediment core profiles
  40. of Al, Fe, and organic carbon were small, indicating no great change in bulk sediment composition. Sulfur
  41. concentrations decline toward the sediment surface, suggesting a decline in rates of microbial sulfate reduction.
  42. Enhanced sediment copper concentrations will be a useful tracer of sediment dispersal from the Ajkwa River estuary
  43. along this coast." name="eprints.abstract" />
  44. <meta content="2001" name="eprints.date" />
  45. <meta content="published" name="eprints.date_type" />
  46. <meta content="Continental Shelf Research" name="eprints.publication" />
  47. <meta content="24" name="eprints.volume" />
  48. <meta content="19" name="eprints.number" />
  49. <meta content="2535-2551" name="eprints.pagerange" />
  50. <meta content="10.1016/j.csr.2004.07.024" name="eprints.id_number" />
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  52. <meta content="0278-4343" name="eprints.issn" />
  53. <meta content="http://dx.doi.org/10.1016/j.csr.2004.07.024" name="eprints.official_url" />
  54. <meta content="Alongi, D.M., Tirendi, F., Robertson, A.I., 1991. Vertical
  55. profiles of copper in sediments from the Fly Delta and Gulf
  56. of Papua (Papua NewGuinea). Marine Pollution Bulletin
  57. 22, 253–255.
  58. ARTICLE IN PRESS
  59. Table 5
  60. Change in rate of supply of Cu, Pb, and Zn to sediments of core sites in the Ajkwa River estuary. Elemental deposition rate for sites 1
  61. and 3 is calculated as the product of 210Pb derived accumulation rate (MAR) times the concentration of the element in pre-1950
  62. sediment at the core bottom (Background), and in the top layers of the sediment core (Present). For sites 5 and 4, we used MAR
  63. calculated from the history of mine waste production (see Table 2)
  64. Site MAR
  65. (kg dry wtm2 yr1)
  66. Cu flux
  67. (mmol Cum2 yr1)
  68. Zn flux
  69. (mmol Znm2 yr1)
  70. Pb flux
  71. (mmol Pbm2 yr1)
  72. 1 4.5 Background 1.35 4.3 0.32
  73. Present 11.3 5.4 0.50
  74. 3 7.5 Background 3.0 9.0 0.68
  75. Present 137 18 1.5
  76. 4 13 Background 7.8 16 1.3
  77. Present 204 28 2.0
  78. 5 11 Background 6.6 11 1.1
  79. Present 129 21 1.8
  80. G.J. Brunskill et al. / Continental Shelf Research 24 (2004) 2535–2551 2549
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  199. Government Publishing Service, Canberra, 322pp.
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  201. in the Fly River estuary, Papua NewGuinea. Journal of
  202. Coastal Research 13, 983–994.
  203. Woolfe, K.J., Dale, P.J., Brunskill, G.J., 1995. Sedimentary C/S
  204. relationships in a large tropical estuary: evidence for
  205. refractory carbon inputs from mangroves. Geo-Marine
  206. Letters 15, 140–144." name="eprints.referencetext" />
  207. <meta content="Brunskill, G.J. and Zagorkis, I. and Pfitzner, J. and Ellison, J.C. (2001) Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia. Continental Shelf Research, 24 (19). pp. 2535-2551. ISSN 0278-4343" name="eprints.citation" />
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  212. (West Papua), Indonesia" name="DC.title" />
  213. <meta content="Brunskill, G.J." name="DC.creator" />
  214. <meta content="Zagorkis, I." name="DC.creator" />
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  216. <meta content="Ellison, J.C." name="DC.creator" />
  217. <meta content="300801 Environmental Management and Rehabilitation" name="DC.subject" />
  218. <meta content="Radiotracer 210Pb and contaminant copper were used to estimate sediment accumulation rates in 4 cores from the
  219. Ajkwa River estuary and mangrove tidal channels in western Irian Jaya. Mass accumulation rates
  220. (4.5–13 kg dry wtm2 yr1) were within the envelope of expectations for a region of high rainfall, great river catchment
  221. relief, and rapid tectonic uplift of mountains. Copper accumulation rates were enhanced 40 fold in surface sediments,
  222. compared to pre-1950 sections of the sediment cores. These recent sediments with enhanced copper
  223. concentrations come from Freeport Indonesia mine tailings over the last 27 years. Variations in sediment core profiles
  224. of Al, Fe, and organic carbon were small, indicating no great change in bulk sediment composition. Sulfur
  225. concentrations decline toward the sediment surface, suggesting a decline in rates of microbial sulfate reduction.
  226. Enhanced sediment copper concentrations will be a useful tracer of sediment dispersal from the Ajkwa River estuary
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  341.     <h1 class="ep_tm_pagetitle">Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia</h1>
  342.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Brunskill, G.J.</span> and <span class="person_name">Zagorkis, I.</span> and <span class="person_name">Pfitzner, J.</span> and <span class="person_name">Ellison, J.C.</span> (2001) <xhtml:em>Sediment and trace element depositional history from the Ajkwa River estuarine mangroves of Irian Jaya (West Papua), Indonesia.</xhtml:em> Continental Shelf Research, 24 (19). pp. 2535-2551. ISSN 0278-4343</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/3053/1/CSR2001.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/3053/1/CSR2001.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />491Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="4189" name="docid" accept-charset="utf-8" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1016/j.csr.2004.07.024">http://dx.doi.org/10.1016/j.csr.2004.07.024</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Radiotracer 210Pb and contaminant copper were used to estimate sediment accumulation rates in 4 cores from the&#13;
  343. Ajkwa River estuary and mangrove tidal channels in western Irian Jaya. Mass accumulation rates&#13;
  344. (4.5–13 kg dry wtm2 yr1) were within the envelope of expectations for a region of high rainfall, great river catchment&#13;
  345. relief, and rapid tectonic uplift of mountains. Copper accumulation rates were enhanced 40 fold in surface sediments,&#13;
  346. compared to pre-1950 sections of the sediment cores. These recent sediments with enhanced copper&#13;
  347. concentrations come from Freeport Indonesia mine tailings over the last 27 years. Variations in sediment core profiles&#13;
  348. of Al, Fe, and organic carbon were small, indicating no great change in bulk sediment composition. Sulfur&#13;
  349. concentrations decline toward the sediment surface, suggesting a decline in rates of microbial sulfate reduction.&#13;
  350. Enhanced sediment copper concentrations will be a useful tracer of sediment dispersal from the Ajkwa River estuary&#13;
  351. along this coast.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">The definitive version is available at http://www.sciencedirect.com&#13;
  352. </td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Ajkwa River estuary; Mangrove sedimentation rates; Trace elements</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/300801.html">300000 Agricultural, Veterinary and Environmental Sciences &gt; 300800 Environmental Sciences &gt; 300801 Environmental Management and Rehabilitation</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">3053</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Joanna Ellison</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">29 Jan 2008 09:44</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">29 Jan 2008 09:44</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=3053;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=3053">item control page</a></p>
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