Newer
Older
Digital_Repository / Misc / Mass downloads / UTas / 3043.html
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  2. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  3. <html>
  4. <head>
  5. <title>UTas ePrints - Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W.</title>
  6. <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script>
  7. <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style>
  8. <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style>
  9. <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
  10. <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
  11. <link rel="Top" href="http://eprints.utas.edu.au/" />
  12. <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" />
  13. <meta content="Watkins, John J." name="eprints.creators_name" />
  14. <meta content="thesis" name="eprints.type" />
  15. <meta content="2008-01-16T23:32:12Z" name="eprints.datestamp" />
  16. <meta content="2008-01-16T23:32:12Z" name="eprints.lastmod" />
  17. <meta content="show" name="eprints.metadata_visibility" />
  18. <meta content="Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W." name="eprints.title" />
  19. <meta content="unpub" name="eprints.ispublished" />
  20. <meta content="260101" name="eprints.subjects" />
  21. <meta content="260100" name="eprints.subjects" />
  22. <meta content="public" name="eprints.full_text_status" />
  23. <meta content="The Mudgee-Gulgong district is located within the exposed northeastern margin of the Lachlan Fold Belt in New South Wales. The district was an important gold mining
  24. centre in the 1800's and produced up to 1 million ounces of gold, mostly from deep
  25. leads. Re-mapping of the area has resulted in a major revision to the stratigraphy and
  26. structural knowledge of the area. Significant changes include the recognition of the
  27. formerly known Early Devonian Burranah Formation as a Late Ordovician volcanic
  28. unit with significant exploration potential for Au-Cu mineralization. Also recognised is a Late Silurian shelf sequence with potential for Au-Cu and base metals overlying the Burranah Formation.
  29.  
  30. The Burranah Formation is a dominantly submarine, volcano-sedimentary succession
  31. with a complex internal stratigraphy. Two main lithofacies associations can be
  32. recognised on the magnetic images. A lower package, composed mostly of primary
  33. volcanic rocks and minor volcaniclastics is overlain by a package composed dominantly of volcaniclastics and sediments. Small elongate intrusive bodies occur throughout the sequence.
  34.  
  35. Structural interpretation of the area reveals one dominant D2 deformation (Early
  36. Carboniferous) that produced meridional to northwest-trending folds, cleavage, thrust
  37. faults and oblique-slip faults. A zone of higher strain is developed within the Burranah Formation and is characterised by overturned, tight, F2 folds and considerable shortening.
  38.  
  39. Mapping and interpretation of the area has been greatly assisted by the availability of
  40. high resolution gravity, magnetic and radiometric data. The interpretation of magnetic
  41. data has considerably enhanced the structural interpretation.
  42.  
  43. Volcanic and intrusive rocks of the Burranah Formation comprise a coherent calcalkaline suite with a dominantly shoshonitic character. In MORB-normalized plots, they display patterns typical of many modern subduction-related volcanics with a marked depletion of Ta and Nb and similar or lower abundances of the heavy REE and Ti. Positive εNd values indicate a mantle source for the shoshonites with little or no crustal contamination.
  44.  
  45. Primary gold mineralization in the district occurs in veins and as disseminations in the
  46. structurally more competent rocks adjacent to faults and shear zones in the higher
  47. strain zone. Host rocks are generally intrusive monzodiorites, diorites or coherent
  48. volcanics and range in age from Late Ordovician to Early Devonian. Sulphur and lead
  49. isotope data support a syndeformational model for mineralization with fluids and gold
  50. derived from the host rock sequence." name="eprints.abstract" />
  51. <meta content="1997" name="eprints.date" />
  52. <meta content="submitted" name="eprints.date_type" />
  53. <meta content="79" name="eprints.pages" />
  54. <meta content="University of Tasmania" name="eprints.institution" />
  55. <meta content="Centre for Ore Deposit and Exploration Studies" name="eprints.department" />
  56. <meta content="rmaster" name="eprints.thesis_type" />
  57. <meta content="Watkins, John J. (1997) Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W. Research Master thesis, University of Tasmania." name="eprints.citation" />
  58. <meta content="http://eprints.utas.edu.au/3043/1/1_front.pdf" name="eprints.document_url" />
  59. <meta content="http://eprints.utas.edu.au/3043/2/2_intro.pdf" name="eprints.document_url" />
  60. <meta content="http://eprints.utas.edu.au/3043/3/3_regional-geological-setting.pdf" name="eprints.document_url" />
  61. <meta content="http://eprints.utas.edu.au/3043/4/4_geophysics.pdf" name="eprints.document_url" />
  62. <meta content="http://eprints.utas.edu.au/3043/5/5_geochemistry.pdf" name="eprints.document_url" />
  63. <meta content="http://eprints.utas.edu.au/3043/6/6_mineralization.pdf" name="eprints.document_url" />
  64. <meta content="http://eprints.utas.edu.au/3043/7/7_conclusion-refs.pdf" name="eprints.document_url" />
  65. <link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
  66. <meta content="Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W." name="DC.title" />
  67. <meta content="Watkins, John J." name="DC.creator" />
  68. <meta content="260101 Mineralogy and Crystallography" name="DC.subject" />
  69. <meta content="260100 Geology" name="DC.subject" />
  70. <meta content="The Mudgee-Gulgong district is located within the exposed northeastern margin of the Lachlan Fold Belt in New South Wales. The district was an important gold mining
  71. centre in the 1800's and produced up to 1 million ounces of gold, mostly from deep
  72. leads. Re-mapping of the area has resulted in a major revision to the stratigraphy and
  73. structural knowledge of the area. Significant changes include the recognition of the
  74. formerly known Early Devonian Burranah Formation as a Late Ordovician volcanic
  75. unit with significant exploration potential for Au-Cu mineralization. Also recognised is a Late Silurian shelf sequence with potential for Au-Cu and base metals overlying the Burranah Formation.
  76.  
  77. The Burranah Formation is a dominantly submarine, volcano-sedimentary succession
  78. with a complex internal stratigraphy. Two main lithofacies associations can be
  79. recognised on the magnetic images. A lower package, composed mostly of primary
  80. volcanic rocks and minor volcaniclastics is overlain by a package composed dominantly of volcaniclastics and sediments. Small elongate intrusive bodies occur throughout the sequence.
  81.  
  82. Structural interpretation of the area reveals one dominant D2 deformation (Early
  83. Carboniferous) that produced meridional to northwest-trending folds, cleavage, thrust
  84. faults and oblique-slip faults. A zone of higher strain is developed within the Burranah Formation and is characterised by overturned, tight, F2 folds and considerable shortening.
  85.  
  86. Mapping and interpretation of the area has been greatly assisted by the availability of
  87. high resolution gravity, magnetic and radiometric data. The interpretation of magnetic
  88. data has considerably enhanced the structural interpretation.
  89.  
  90. Volcanic and intrusive rocks of the Burranah Formation comprise a coherent calcalkaline suite with a dominantly shoshonitic character. In MORB-normalized plots, they display patterns typical of many modern subduction-related volcanics with a marked depletion of Ta and Nb and similar or lower abundances of the heavy REE and Ti. Positive εNd values indicate a mantle source for the shoshonites with little or no crustal contamination.
  91.  
  92. Primary gold mineralization in the district occurs in veins and as disseminations in the
  93. structurally more competent rocks adjacent to faults and shear zones in the higher
  94. strain zone. Host rocks are generally intrusive monzodiorites, diorites or coherent
  95. volcanics and range in age from Late Ordovician to Early Devonian. Sulphur and lead
  96. isotope data support a syndeformational model for mineralization with fluids and gold
  97. derived from the host rock sequence." name="DC.description" />
  98. <meta content="1997" name="DC.date" />
  99. <meta content="Thesis" name="DC.type" />
  100. <meta content="NonPeerReviewed" name="DC.type" />
  101. <meta content="application/pdf" name="DC.format" />
  102. <meta content="http://eprints.utas.edu.au/3043/1/1_front.pdf" name="DC.identifier" />
  103. <meta content="application/pdf" name="DC.format" />
  104. <meta content="http://eprints.utas.edu.au/3043/2/2_intro.pdf" name="DC.identifier" />
  105. <meta content="application/pdf" name="DC.format" />
  106. <meta content="http://eprints.utas.edu.au/3043/3/3_regional-geological-setting.pdf" name="DC.identifier" />
  107. <meta content="application/pdf" name="DC.format" />
  108. <meta content="http://eprints.utas.edu.au/3043/4/4_geophysics.pdf" name="DC.identifier" />
  109. <meta content="application/pdf" name="DC.format" />
  110. <meta content="http://eprints.utas.edu.au/3043/5/5_geochemistry.pdf" name="DC.identifier" />
  111. <meta content="application/pdf" name="DC.format" />
  112. <meta content="http://eprints.utas.edu.au/3043/6/6_mineralization.pdf" name="DC.identifier" />
  113. <meta content="application/pdf" name="DC.format" />
  114. <meta content="http://eprints.utas.edu.au/3043/7/7_conclusion-refs.pdf" name="DC.identifier" />
  115. <meta content="Watkins, John J. (1997) Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W. Research Master thesis, University of Tasmania." name="DC.identifier" />
  116. <meta content="http://eprints.utas.edu.au/3043/" name="DC.relation" />
  117. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/BibTeX/epprod-eprint-3043.bib" title="BibTeX" type="text/plain" />
  118. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/ContextObject/epprod-eprint-3043.xml" title="OpenURL ContextObject" type="text/xml" />
  119. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/ContextObject::Dissertation/epprod-eprint-3043.xml" title="OpenURL Dissertation" type="text/xml" />
  120. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/ContextObject::Journal/epprod-eprint-3043.xml" title="OpenURL Journal" type="text/xml" />
  121. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/DC/epprod-eprint-3043.txt" title="Dublin Core" type="text/plain" />
  122. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/DIDL/epprod-eprint-3043.xml" title="DIDL" type="text/xml" />
  123. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/EndNote/epprod-eprint-3043.enw" title="EndNote" type="text/plain" />
  124. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/HTML/epprod-eprint-3043.html" title="HTML Citation" type="text/html; charset=utf-8" />
  125. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/METS/epprod-eprint-3043.xml" title="METS" type="text/xml" />
  126. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/MODS/epprod-eprint-3043.xml" title="MODS" type="text/xml" />
  127. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/RIS/epprod-eprint-3043.ris" title="Reference Manager" type="text/plain" />
  128. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/Refer/epprod-eprint-3043.refer" title="Refer" type="text/plain" />
  129. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/Simple/epprod-eprint-3043text" title="Simple Metadata" type="text/plain" />
  130. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/Text/epprod-eprint-3043.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
  131. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/3043/XML/epprod-eprint-3043.xml" title="EP3 XML" type="text/xml" />
  132.  
  133. </head>
  134. <body bgcolor="#ffffff" text="#000000" onLoad="loadRoutine(); MM_preloadImages('images/eprints/ePrints_banner_r5_c5_f2.gif','images/eprints/ePrints_banner_r5_c7_f2.gif','images/eprints/ePrints_banner_r5_c8_f2.gif','images/eprints/ePrints_banner_r5_c9_f2.gif','images/eprints/ePrints_banner_r5_c10_f2.gif','images/eprints/ePrints_banner_r5_c11_f2.gif','images/eprints/ePrints_banner_r6_c4_f2.gif')">
  135. <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div>
  136.  
  137.  
  138.  
  139.  
  140. <table width="795" border="0" cellspacing="0" cellpadding="0">
  141. <tr>
  142. <td><script language="JavaScript1.2">mmLoadMenus();</script>
  143. <table border="0" cellpadding="0" cellspacing="0" width="795">
  144. <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" -->
  145. <tr>
  146. <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td>
  147. <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td>
  148. <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td>
  149. <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td>
  150. <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td>
  151. <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td>
  152. <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  153. <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  154. <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  155. <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td>
  156. <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td>
  157. <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td>
  158. <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
  159. </tr>
  160. <tr>
  161. <td colspan="12"><img name="ePrints_banner_r1_c1" src="/images/eprints/ePrints_banner_r1_c1.gif" width="795" height="10" border="0" alt="" /></td>
  162. <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td>
  163. </tr>
  164. <tr>
  165. <td rowspan="6"><img name="ePrints_banner_r2_c1" src="/images/eprints/ePrints_banner_r2_c1.gif" width="32" height="118" border="0" alt="" /></td>
  166. <td rowspan="5"><a href="http://www.utas.edu.au/"><img name="ePrints_banner_r2_c2" src="/images/eprints/ePrints_banner_r2_c2.gif" width="104" height="103" border="0" alt="" /></a></td>
  167. <td colspan="10"><img name="ePrints_banner_r2_c3" src="/images/eprints/ePrints_banner_r2_c3.gif" width="659" height="41" border="0" alt="" /></td>
  168. <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td>
  169. </tr>
  170. <tr>
  171. <td colspan="3"><a href="http://eprints.utas.edu.au/"><img name="ePrints_banner_r3_c3" src="/images/eprints/ePrints_banner_r3_c3.gif" width="190" height="31" border="0" alt="" /></a></td>
  172. <td rowspan="2" colspan="7"><img name="ePrints_banner_r3_c6" src="/images/eprints/ePrints_banner_r3_c6.gif" width="469" height="37" border="0" alt="" /></td>
  173. <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td>
  174. </tr>
  175. <tr>
  176. <td colspan="3"><img name="ePrints_banner_r4_c3" src="/images/eprints/ePrints_banner_r4_c3.gif" width="190" height="6" border="0" alt="" /></td>
  177. <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td>
  178. </tr>
  179. <tr>
  180. <td colspan="2"><img name="ePrints_banner_r5_c3" src="/images/eprints/ePrints_banner_r5_c3.gif" width="149" height="1" border="0" alt="" /></td>
  181. <td rowspan="2" colspan="2"><a href="/information.html" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821132634_0,0,25,null,'ePrints_banner_r5_c5');MM_swapImage('ePrints_banner_r5_c5','','/images/eprints/ePrints_banner_r5_c5_f2.gif',1);"><img name="ePrints_banner_r5_c5" src="/images/eprints/ePrints_banner_r5_c5.gif" width="57" height="25" border="0" alt="About" /></a></td>
  182. <td rowspan="2"><a href="/view/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133021_1,0,25,null,'ePrints_banner_r5_c7');MM_swapImage('ePrints_banner_r5_c7','','/images/eprints/ePrints_banner_r5_c7_f2.gif',1);"><img name="ePrints_banner_r5_c7" src="/images/eprints/ePrints_banner_r5_c7.gif" width="68" height="25" border="0" alt="Browse" /></a></td>
  183. <td rowspan="2"><a href="/perl/search/simple" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133201_2,0,25,null,'ePrints_banner_r5_c8');MM_swapImage('ePrints_banner_r5_c8','','/images/eprints/ePrints_banner_r5_c8_f2.gif',1);"><img name="ePrints_banner_r5_c8" src="/images/eprints/ePrints_banner_r5_c8.gif" width="68" height="25" border="0" alt="Search" /></a></td>
  184. <td rowspan="2"><a href="/perl/register" onMouseOut="MM_swapImgRestore();MM_startTimeout();" onMouseOver="MM_showMenu(window.mm_menu_1018171924_3,0,25,null,'ePrints_banner_r5_c9');MM_swapImage('ePrints_banner_r5_c9','','/images/eprints/ePrints_banner_r5_c9_f2.gif',1);"><img name="ePrints_banner_r5_c9" src="/images/eprints/ePrints_banner_r5_c9.gif" width="68" height="25" border="0" alt="register" /></a></td>
  185. <td rowspan="2"><a href="/perl/users/home" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133422_4,0,25,null,'ePrints_banner_r5_c10');MM_swapImage('ePrints_banner_r5_c10','','/images/eprints/ePrints_banner_r5_c10_f2.gif',1);"><img name="ePrints_banner_r5_c10" src="/images/eprints/ePrints_banner_r5_c10.gif" width="82" height="25" border="0" alt="user area" /></a></td>
  186. <td rowspan="2"><a href="/help/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133514_5,0,25,null,'ePrints_banner_r5_c11');MM_swapImage('ePrints_banner_r5_c11','','/images/eprints/ePrints_banner_r5_c11_f2.gif',1);"><img name="ePrints_banner_r5_c11" src="/images/eprints/ePrints_banner_r5_c11.gif" width="69" height="25" border="0" alt="Help" /></a></td>
  187. <td rowspan="3" colspan="4"><img name="ePrints_banner_r5_c12" src="/images/eprints/ePrints_banner_r5_c12.gif" width="98" height="40" border="0" alt="" /></td>
  188. <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
  189. </tr>
  190. <tr>
  191. <td rowspan="2"><img name="ePrints_banner_r6_c3" src="/images/eprints/ePrints_banner_r6_c3.gif" width="44" height="39" border="0" alt="ePrints home" /></td>
  192. <td><a href="/" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ePrints_banner_r6_c4','','/images/eprints/ePrints_banner_r6_c4_f2.gif',1);"><img name="ePrints_banner_r6_c4" src="/images/eprints/ePrints_banner_r6_c4.gif" width="105" height="24" border="0" alt="ePrints home" /></a></td>
  193. <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td>
  194. </tr>
  195. <tr>
  196. <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td>
  197. <td colspan="8"><img name="ePrints_banner_r7_c4" src="/images/eprints/ePrints_banner_r7_c4.gif" width="517" height="15" border="0" alt="" /></td>
  198. <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td>
  199. </tr>
  200. </table></td>
  201. </tr>
  202. <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr>
  203. <td align="left"><a href="http://eprints.utas.edu.au/cgi/users/home">Login</a> | <a href="http://eprints.utas.edu.au/cgi/register">Create Account</a></td>
  204. <td align="right" style="white-space: nowrap">
  205. <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline">
  206. <input class="ep_tm_searchbarbox" size="20" type="text" name="q" />
  207. <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" />
  208. <input type="hidden" name="_order" value="bytitle" />
  209. <input type="hidden" name="basic_srchtype" value="ALL" />
  210. <input type="hidden" name="_satisfyall" value="ALL" />
  211. </form>
  212. </td>
  213. </tr></table></td></tr>
  214. <tr>
  215. <td class="toplinks"><!-- InstanceBeginEditable name="content" -->
  216.  
  217.  
  218. <div align="center">
  219. <table width="720" class="ep_tm_main"><tr><td align="left">
  220. <h1 class="ep_tm_pagetitle">Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W.</h1>
  221. <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Watkins, John J.</span> (1997) <xhtml:em>Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W.</xhtml:em> Research Master thesis, University of Tasmania.</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 onmouseover="EPJS_ShowPreview( event, 'doc_preview_4146' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4146' );" href="http://eprints.utas.edu.au/3043/1/1_front.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4146"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/1/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/1/1_front.pdf"><span class="ep_document_citation">PDF (Front Matter)</span></a> - Requires a PDF viewer<br />91Kb</td></tr><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4147' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4147' );" href="http://eprints.utas.edu.au/3043/2/2_intro.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4147"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/2/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/2/2_intro.pdf"><span class="ep_document_citation">PDF (Chapter 1 - Introduction)</span></a> - Requires a PDF viewer<br />101Kb</td></tr><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4148' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4148' );" href="http://eprints.utas.edu.au/3043/3/3_regional-geological-setting.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4148"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/3/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/3/3_regional-geological-setting.pdf"><span class="ep_document_citation">PDF (Chapter 2 - Regional Geological Setting)</span></a> - Requires a PDF viewer<br />1279Kb</td></tr><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4149' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4149' );" href="http://eprints.utas.edu.au/3043/4/4_geophysics.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4149"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/4/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/4/4_geophysics.pdf"><span class="ep_document_citation">PDF (Chapter 3 - Geophysics)</span></a> - Requires a PDF viewer<br />2169Kb</td></tr><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4150' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4150' );" href="http://eprints.utas.edu.au/3043/5/5_geochemistry.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4150"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/5/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/5/5_geochemistry.pdf"><span class="ep_document_citation">PDF (Chapter 4 - Geochemistry)</span></a> - Requires a PDF viewer<br />327Kb</td></tr><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4151' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4151' );" href="http://eprints.utas.edu.au/3043/6/6_mineralization.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4151"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/6/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/6/6_mineralization.pdf"><span class="ep_document_citation">PDF (Chapter 5 - Mineralization)</span></a> - Requires a PDF viewer<br />724Kb</td></tr><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4152' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4152' );" href="http://eprints.utas.edu.au/3043/7/7_conclusion-refs.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4152"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/3043/thumbnails/7/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/3043/7/7_conclusion-refs.pdf"><span class="ep_document_citation">PDF (Conclusions, References and Maps)</span></a> - Requires a PDF viewer<br />3233Kb</td></tr></table><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The Mudgee-Gulgong district is located within the exposed northeastern margin of the Lachlan Fold Belt in New South Wales. The district was an important gold mining&#13;
  222. centre in the 1800's and produced up to 1 million ounces of gold, mostly from deep&#13;
  223. leads. Re-mapping of the area has resulted in a major revision to the stratigraphy and&#13;
  224. structural knowledge of the area. Significant changes include the recognition of the&#13;
  225. formerly known Early Devonian Burranah Formation as a Late Ordovician volcanic&#13;
  226. unit with significant exploration potential for Au-Cu mineralization. Also recognised is a Late Silurian shelf sequence with potential for Au-Cu and base metals overlying the Burranah Formation.&#13;
  227. &#13;
  228. The Burranah Formation is a dominantly submarine, volcano-sedimentary succession&#13;
  229. with a complex internal stratigraphy. Two main lithofacies associations can be&#13;
  230. recognised on the magnetic images. A lower package, composed mostly of primary&#13;
  231. volcanic rocks and minor volcaniclastics is overlain by a package composed dominantly of volcaniclastics and sediments. Small elongate intrusive bodies occur throughout the sequence.&#13;
  232. &#13;
  233. Structural interpretation of the area reveals one dominant D2 deformation (Early&#13;
  234. Carboniferous) that produced meridional to northwest-trending folds, cleavage, thrust&#13;
  235. faults and oblique-slip faults. A zone of higher strain is developed within the Burranah Formation and is characterised by overturned, tight, F2 folds and considerable shortening.&#13;
  236. &#13;
  237. Mapping and interpretation of the area has been greatly assisted by the availability of&#13;
  238. high resolution gravity, magnetic and radiometric data. The interpretation of magnetic&#13;
  239. data has considerably enhanced the structural interpretation.&#13;
  240. &#13;
  241. Volcanic and intrusive rocks of the Burranah Formation comprise a coherent calcalkaline suite with a dominantly shoshonitic character. In MORB-normalized plots, they display patterns typical of many modern subduction-related volcanics with a marked depletion of Ta and Nb and similar or lower abundances of the heavy REE and Ti. Positive εNd values indicate a mantle source for the shoshonites with little or no crustal contamination.&#13;
  242. &#13;
  243. Primary gold mineralization in the district occurs in veins and as disseminations in the&#13;
  244. structurally more competent rocks adjacent to faults and shear zones in the higher&#13;
  245. strain zone. Host rocks are generally intrusive monzodiorites, diorites or coherent&#13;
  246. volcanics and range in age from Late Ordovician to Early Devonian. Sulphur and lead&#13;
  247. isotope data support a syndeformational model for mineralization with fluids and gold&#13;
  248. derived from the host rock sequence.</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">Thesis (Research Master)</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/260101.html">260000 Earth Sciences &gt; 260100 Geology &gt; 260101 Mineralogy and Crystallography</a><br /><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">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">3043</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">Ms Sandy von Allmen</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">17 Jan 2008 10:32</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">17 Jan 2008 10:32</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=3043;">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=3043">item control page</a></p>
  249. </td></tr></table>
  250. </div>
  251.  
  252.  
  253.  
  254. <!-- InstanceEndEditable --></td>
  255. </tr>
  256. <tr>
  257. <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" -->
  258. <table width="795" border="0" align="left" cellpadding="0" class="footer">
  259. <tr valign="top">
  260. <td colspan="2"><div align="center"><a href="http://www.utas.edu.au">UTAS home</a> | <a href="http://www.utas.edu.au/library/">Library home</a> | <a href="/">ePrints home</a> | <a href="/contact.html">contact</a> | <a href="/information.html">about</a> | <a href="/view/">browse</a> | <a href="/perl/search/simple">search</a> | <a href="/perl/register">register</a> | <a href="/perl/users/home">user area</a> | <a href="/help/">help</a></div><br /></td>
  261. </tr>
  262. <tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr>
  263. <tr valign="top">
  264. <td width="68%" class="footer">Authorised by the University Librarian<br />
  265. © University of Tasmania ABN 30 764 374 782<br />
  266. <a href="http://www.utas.edu.au/cricos/">CRICOS Provider Code 00586B</a> | <a href="http://www.utas.edu.au/copyright/copyright_disclaimers.html">Copyright &amp; Disclaimers</a> | <a href="http://www.utas.edu.au/accessibility/index.html">Accessibility</a> | <a href="http://eprints.utas.edu.au/feedback/">Site Feedback</a>  </td>
  267. <td width="32%"><div align="right">
  268. <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><img src="http://www.utas.edu.au/shared/logos/unioftasstrip.gif" alt="University of Tasmania Home Page" width="260" height="16" border="0" align="right" /></a></p>
  269. <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br />
  270. </a></p>
  271. </div></td>
  272. </tr>
  273. <tr valign="top">
  274. <td><p>  </p></td>
  275. <td><div align="right"><span class="NoPrint"><a href="http://www.eprints.org/software/"><img src="/images/eprintslogo.gif" alt="ePrints logo" width="77" height="29" border="0" align="bottom" /></a></span></div></td>
  276. </tr>
  277. </table>
  278. <!-- #EndLibraryItem -->
  279. <div align="center"></div></td>
  280. </tr>
  281. </table>
  282.  
  283. </body>
  284. </html>