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  5.     <title>UTas ePrints - Petrogenetic variability along the North–South Propagating Spreading Center of the North Fiji Basin</title>
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  41. <meta content="Previous studies on propagating rifts suggested that segmentation of a spreading axis
  42. could represent the superficial mark of mantle behavior (Sinton et al., 1983; Nicolas,
  43. 1989; Gente et al., 1995). The study of North–South Propagating Spreading Center (NSPSC)
  44. from the North Fiji Basin (NFB) brings new insights to this debate. Basalts from the
  45. central part of the propagator have more variable incompatible and isotopic ratios then
  46. those from its northern tip. A model of dynamic partial melting of a thermally and
  47. slightly geochemically and isotopically heterogeneous mantle is proposed. Beneath the
  48. central segment, the partial fusion starts deeper (ca. 30 km) and reaches a higher rate (ca.
  49. 22%). Further open system differentiation occurs within shallow permanent magma
  50. reservoirs along most of the central segment. Below the segment closest to the tip of
  51. the propagator the partial fusion starts shallower (ca. 25 km) and stays at a lower rate (ca.
  52. 16%). The maximum of differentiation occurs close to the propagator, in small, periodically
  53. disconnected, magma bodies resulting in the production of ferrobasalts close to the
  54. tip. In order to explain these variations, the presence of an asthenospheric diapir focused
  55. beneath the central part of the NS-PSC is proposed. The petrogenetic processes of
  56. propagating spreading centers of mature oceanic basins or back-arc basins are identical." name="eprints.abstract" />
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  220. <meta content="Previous studies on propagating rifts suggested that segmentation of a spreading axis
  221. could represent the superficial mark of mantle behavior (Sinton et al., 1983; Nicolas,
  222. 1989; Gente et al., 1995). The study of North–South Propagating Spreading Center (NSPSC)
  223. from the North Fiji Basin (NFB) brings new insights to this debate. Basalts from the
  224. central part of the propagator have more variable incompatible and isotopic ratios then
  225. those from its northern tip. A model of dynamic partial melting of a thermally and
  226. slightly geochemically and isotopically heterogeneous mantle is proposed. Beneath the
  227. central segment, the partial fusion starts deeper (ca. 30 km) and reaches a higher rate (ca.
  228. 22%). Further open system differentiation occurs within shallow permanent magma
  229. reservoirs along most of the central segment. Below the segment closest to the tip of
  230. the propagator the partial fusion starts shallower (ca. 25 km) and stays at a lower rate (ca.
  231. 16%). The maximum of differentiation occurs close to the propagator, in small, periodically
  232. disconnected, magma bodies resulting in the production of ferrobasalts close to the
  233. tip. In order to explain these variations, the presence of an asthenospheric diapir focused
  234. beneath the central part of the NS-PSC is proposed. The petrogenetic processes of
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  349.     <h1 class="ep_tm_pagetitle">Petrogenetic variability along the North–South Propagating Spreading Center of the North Fiji Basin</h1>
  350.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Fleutelot, C.</span> and <span class="person_name">Eissen, J.P.</span> and <span class="person_name">Dosso, L.</span> and <span class="person_name">Juteau, T.</span> and <span class="person_name">Launeau, P.</span> and <span class="person_name">Bollinger, C.</span> and <span class="person_name">Cotten, J.</span> and <span class="person_name">Danyushevsky, L.V.</span> and <span class="person_name">Savoyant, L.</span> (2005) <xhtml:em>Petrogenetic variability along the North–South Propagating Spreading Center of the North Fiji Basin.</xhtml:em> Mineralogy and Petrology, 83 (1). pp. 55-86. ISSN 0930-0708</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/2012/1/Fleutelot_et_al_2005_MINER_PETROL.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2012/1/Fleutelot_et_al_2005_MINER_PETROL.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />993Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="2534" name="docid" 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/10.1007/s00710-004-0061-5">http://dx.doi.org/10.1007/s00710-004-0061-5</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Previous studies on propagating rifts suggested that segmentation of a spreading axis&#13;
  351. could represent the superficial mark of mantle behavior (Sinton et al., 1983; Nicolas,&#13;
  352. 1989; Gente et al., 1995). The study of North–South Propagating Spreading Center (NSPSC)&#13;
  353. from the North Fiji Basin (NFB) brings new insights to this debate. Basalts from the&#13;
  354. central part of the propagator have more variable incompatible and isotopic ratios then&#13;
  355. those from its northern tip. A model of dynamic partial melting of a thermally and&#13;
  356. slightly geochemically and isotopically heterogeneous mantle is proposed. Beneath the&#13;
  357. central segment, the partial fusion starts deeper (ca. 30 km) and reaches a higher rate (ca.&#13;
  358. 22%). Further open system differentiation occurs within shallow permanent magma&#13;
  359. reservoirs along most of the central segment. Below the segment closest to the tip of&#13;
  360. the propagator the partial fusion starts shallower (ca. 25 km) and stays at a lower rate (ca.&#13;
  361. 16%). The maximum of differentiation occurs close to the propagator, in small, periodically&#13;
  362. disconnected, magma bodies resulting in the production of ferrobasalts close to the&#13;
  363. tip. In order to explain these variations, the presence of an asthenospheric diapir focused&#13;
  364. beneath the central part of the NS-PSC is proposed. The petrogenetic processes of&#13;
  365. propagating spreading centers of mature oceanic basins or back-arc basins are identical.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><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 original publication is available at www.springerlink.com</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">geochemistry, backarc basin basalts, isotopes, propagating spreading centre, Southwest Pacific, North Fiji Basin</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/260100.html">260000 Earth Sciences &gt; 260100 Geology</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2012</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">Mrs Katrina Keep</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">13 Oct 2007 10:56</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</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=2012;">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=2012">item control page</a></p>
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