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- <meta content="Watkins, John J." name="eprints.creators_name" />
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- <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
- centre in the 1800's and produced up to 1 million ounces of gold, mostly from deep
- leads. Re-mapping of the area has resulted in a major revision to the stratigraphy and
- structural knowledge of the area. Significant changes include the recognition of the
- formerly known Early Devonian Burranah Formation as a Late Ordovician volcanic
- 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.
-
- The Burranah Formation is a dominantly submarine, volcano-sedimentary succession
- with a complex internal stratigraphy. Two main lithofacies associations can be
- recognised on the magnetic images. A lower package, composed mostly of primary
- volcanic rocks and minor volcaniclastics is overlain by a package composed dominantly of volcaniclastics and sediments. Small elongate intrusive bodies occur throughout the sequence.
-
- Structural interpretation of the area reveals one dominant D2 deformation (Early
- Carboniferous) that produced meridional to northwest-trending folds, cleavage, thrust
- 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.
-
- Mapping and interpretation of the area has been greatly assisted by the availability of
- high resolution gravity, magnetic and radiometric data. The interpretation of magnetic
- data has considerably enhanced the structural interpretation.
-
- 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.
-
- Primary gold mineralization in the district occurs in veins and as disseminations in the
- structurally more competent rocks adjacent to faults and shear zones in the higher
- strain zone. Host rocks are generally intrusive monzodiorites, diorites or coherent
- volcanics and range in age from Late Ordovician to Early Devonian. Sulphur and lead
- isotope data support a syndeformational model for mineralization with fluids and gold
- derived from the host rock sequence." name="eprints.abstract" />
- <meta content="1997" name="eprints.date" />
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- <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
- centre in the 1800's and produced up to 1 million ounces of gold, mostly from deep
- leads. Re-mapping of the area has resulted in a major revision to the stratigraphy and
- structural knowledge of the area. Significant changes include the recognition of the
- formerly known Early Devonian Burranah Formation as a Late Ordovician volcanic
- 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.
-
- The Burranah Formation is a dominantly submarine, volcano-sedimentary succession
- with a complex internal stratigraphy. Two main lithofacies associations can be
- recognised on the magnetic images. A lower package, composed mostly of primary
- volcanic rocks and minor volcaniclastics is overlain by a package composed dominantly of volcaniclastics and sediments. Small elongate intrusive bodies occur throughout the sequence.
-
- Structural interpretation of the area reveals one dominant D2 deformation (Early
- Carboniferous) that produced meridional to northwest-trending folds, cleavage, thrust
- 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.
-
- Mapping and interpretation of the area has been greatly assisted by the availability of
- high resolution gravity, magnetic and radiometric data. The interpretation of magnetic
- data has considerably enhanced the structural interpretation.
-
- 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.
-
- Primary gold mineralization in the district occurs in veins and as disseminations in the
- structurally more competent rocks adjacent to faults and shear zones in the higher
- strain zone. Host rocks are generally intrusive monzodiorites, diorites or coherent
- volcanics and range in age from Late Ordovician to Early Devonian. Sulphur and lead
- isotope data support a syndeformational model for mineralization with fluids and gold
- derived from the host rock sequence." name="DC.description" />
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- <h1 class="ep_tm_pagetitle">Regional settings of structurally hosted gold mineralization in the Mudgee-Gulgong District, N.S.W.</h1>
- <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
- centre in the 1800's and produced up to 1 million ounces of gold, mostly from deep
- leads. Re-mapping of the area has resulted in a major revision to the stratigraphy and
- structural knowledge of the area. Significant changes include the recognition of the
- formerly known Early Devonian Burranah Formation as a Late Ordovician volcanic
- 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.
-
- The Burranah Formation is a dominantly submarine, volcano-sedimentary succession
- with a complex internal stratigraphy. Two main lithofacies associations can be
- recognised on the magnetic images. A lower package, composed mostly of primary
- volcanic rocks and minor volcaniclastics is overlain by a package composed dominantly of volcaniclastics and sediments. Small elongate intrusive bodies occur throughout the sequence.
-
- Structural interpretation of the area reveals one dominant D2 deformation (Early
- Carboniferous) that produced meridional to northwest-trending folds, cleavage, thrust
- 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.
-
- Mapping and interpretation of the area has been greatly assisted by the availability of
- high resolution gravity, magnetic and radiometric data. The interpretation of magnetic
- data has considerably enhanced the structural interpretation.
-
- 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.
-
- Primary gold mineralization in the district occurs in veins and as disseminations in the
- structurally more competent rocks adjacent to faults and shear zones in the higher
- strain zone. Host rocks are generally intrusive monzodiorites, diorites or coherent
- volcanics and range in age from Late Ordovician to Early Devonian. Sulphur and lead
- isotope data support a syndeformational model for mineralization with fluids and gold
- 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 > 260100 Geology > 260101 Mineralogy and Crystallography</a><br /><a href="http://eprints.utas.edu.au/view/subjects/260100.html">260000 Earth Sciences > 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&eprintid=3043">item control page</a></p>
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