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  5. <title>UTas ePrints - Jurassic to Miocene magmatism and metamorphism in the Mogok metamorphic belt and the India-Eurasia collision in Myanmar</title>
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  13. <meta content="Barley, M.E." name="eprints.creators_name" />
  14. <meta content="Pickard, A.L." name="eprints.creators_name" />
  15. <meta content="Zaw, K." name="eprints.creators_name" />
  16. <meta content="Rak, P." name="eprints.creators_name" />
  17. <meta content="Doyle, M.G." name="eprints.creators_name" />
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  27. <meta content="Jurassic to Miocene magmatism and metamorphism in the Mogok
  28. metamorphic belt and the India-Eurasia collision in Myanmar" name="eprints.title" />
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  33. <meta content="SE Asia, Myanmar, granitoids, metamorphism, zircon
  34. dating, geochronology, SHRIMP, Granite, Mogok" name="eprints.keywords" />
  35. <meta content="Situated south of the eastern Himalayan syntaxis at
  36. the western margin of the Shan-Thai terrane the highgrade
  37. Mogok metamorphic belt (MMB) in Myanmar occupies a key position in the tectonic evolution of Southeast Asia. The first sensitive high-resolution ion microprobe U-Pb in zircon geochronology for the MMB shows that strongly deformed granitic orthogneisses near Mandalay contain Jurassic (~170 Ma) zircons that have partly recrystallized during ~43 Ma high-grade metamorphism. A hornblende syenite
  38. from Mandalay Hill also contains Jurassic zircons with
  39. evidence of Eocene metamorphic recrystallization
  40. rimmed by thin zones of 30.9 plus or minus 0.7 Ma magmatic
  41. zircon. The relative abundance of Jurassic zircons in
  42. these rocks is consistent with suggestions that southern
  43. Eurasia had an Andean-type margin at that time. Mid-
  44. Cretaceous to earliest Eocene (120 to 50 Ma) I-type
  45. granitoids in the MMB, Myeik Archipelago, and Western Myanmar confirm that prior to the collision of India, an up to 200 km wide magmatic belt extended along the Eurasian margin from Pakistan to Sumatra.
  46. Metamorphic overgrowths to zircons in the orthogneiss
  47. near Mandalay date a period of Eocene (~43 Ma)
  48. high-grade metamorphism possibly during crustal
  49. thickening related to the initial collision between
  50. India and Eurasia (at 65 to 55 Ma). This was
  51. followed by emplacement of syntectonic hornblende
  52. syenites and leucogranites between 35 and 23 Ma.
  53. Similar syntectonic syenites and leucogranites intruded
  54. the Ailao Shan-Red River shear belt in southern China
  55. and Vietnam during the Eocene-Oligocene to Miocene,
  56. and the Wang Chao and Three Pagodas faults in
  57. northern Thailand (that most likely link with the MMB)
  58. were also active at this time. The complex history of
  59. Eocene to early Miocene metamorphism, deformation,
  60. and magmatism in the MMB provides evidence that it
  61. may have played a key role in the network of
  62. deformation zones that accommodated strain during
  63. the northwards movement of India and resulting
  64. extrusion or rotation of Indochina." name="eprints.abstract" />
  65. <meta content="2003-05" name="eprints.date" />
  66. <meta content="submitted" name="eprints.date_type" />
  67. <meta content="Tectonics" name="eprints.publication" />
  68. <meta content="22" name="eprints.volume" />
  69. <meta content="3" name="eprints.number" />
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  71. <meta content="10.1029/2002TC001398" name="eprints.id_number" />
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  74. <meta content="0278-7407" name="eprints.issn" />
  75. <meta content="http://dx.doi.org/10.1029/2002TC001398" name="eprints.official_url" />
  76. <meta content="Bender, F., Geology of Burma, 1st ed., 293 pp., Gebruder
  77. Borntraeger, Stuttgart, Germany, 1983.
  78. Bertrand, G., C. Rangin, H. Maluski, Tin Aung Han,
  79. Myint Thien, Ohn Myint, Win Maw, and San Lwin,
  80. Cenozoic metamorphism along the Shan Scarp
  81. (Myanmar): Evidence for ductile shear along the
  82. Sagaing fault or the northward migration of the
  83. eastern Himalayan syntaxis?, Geophys. Res. Lett.,
  84. 26, 915-918, 1999.
  85. Brook, M., and N. J. Snelling, K/Ar and Rb/Sr age
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  158. W. S. F. Kidd, Z. Chen, F. J. Ryerson, X. Wang,
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  160. prior to the Indo-Asian collision, Geology, 25,
  161. 719-722, 1997.
  162. Nagy, E. A., U. Scharer, and Nguyen Trung Minh,
  163. Oligo-Miocene granitic magmatism in central Vietnam
  164. and implications for continental deformation in
  165. Indochina, Terra Nova, 12, 67-76, 2000.
  166. Peltzer, G., and P. Tapponnier, Formation and evolution
  167. of strike-slip faults, rifts, and basins during India-
  168. Asia collision: An experimental approach, J. Geophys.
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  170. Prince, C., N. Harris, and D. Vance, Fluid-enhanced
  171. melting during prograde metamorphism, J. Geol.
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  174. R. Lacassin, H. Leloup, and A. Replumaz, Emplacement
  175. ages of subduction- and collision-related
  176. granitic magmas along the Shan escarpment, central
  177. Burma, paper presented at EUG 10, Eur. Union
  178. of Geosci., Strasbourg, France, 1999.
  179. Scharer, U., L.-S. Zhang, and P. Tapponnier, Duration
  180. of strike-slip movements in large shear zones: The
  181. Red River belt, China, Earth Planet. Sci. Lett., 126,
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  183. Searle, M. P., Geology and Tectonics of the Karakoram
  184. Mountains, 358 pp., John Wiley, New York, 1991.
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  192. The tectonic evolution of the Kohistan-Karakoram
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  194. north Pakistan, Tectonics, 18, 929-949, 1999.
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  197. Asia: New insights from simple experiments with
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  199. Vance, D., and N. Harris, Timing of prograde metamorphism
  200. in the Zanskar Himalaya, Geology, 27, 395-398, 1999.
  201. Vavra, G., D. Gebauer, R. Schmid, and W. Compston,
  202. Multiple growth and recrystallization during polyphase
  203. Late Carboniferous to Triassic metamorphism in granulites of the Ivrea Zone (Southern Alps): An ion microprobe (SHRIMP) study, Contrib. Mineral. Petrol., 122, 337-358, 1996.
  204. Williams, I. S., U-Th-Pb geochronology by ion microprobe,
  205. in Applications of Microanalytical Techniques to Understanding Mineralization Processes, edited by M. A. McKibben, W. C. Shanks III, and W. I. Ridley, Rev. Econ. Geol., 7, 1-35, 1998.
  206. Xu, R.-H., U. Scharer, and C. J. Allegre, Magmatism
  207. and metamorphism in the Lhasa Block (Tibet): A
  208. geochronological study, J. Geol., 93, 41-57,
  209. 1985.
  210. Zhang, L.-S., and U. Scharer, Inherited Pb components
  211. in magmatic titanite and their consequence for the
  212. interpretation of U-Pb ages, Earth. Planet. Sci.
  213. Lett., 138, 57-65, 1996.
  214. Zhang, L.-S., and U. Scharer, Age and origin of magmatism
  215. along the Cenozoic Red River shear belt, China, Contrib. Mineral. Petrol., 134, 67-85, 1999." name="eprints.referencetext" />
  216. <meta content="Barley, M.E. and Pickard, A.L. and Zaw, K. and Rak, P. and Doyle, M.G. (2003) Jurassic to Miocene magmatism and metamorphism in the Mogok metamorphic belt and the India-Eurasia collision in Myanmar. Tectonics, 22 (3). pp. 4-1. ISSN 0278-7407" name="eprints.citation" />
  217. <meta content="http://eprints.utas.edu.au/1879/1/Barley%2C_Pickard%2C_Zaw_et_al_TECTONICS_2003.pdf" name="eprints.document_url" />
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  219. <meta content="Jurassic to Miocene magmatism and metamorphism in the Mogok
  220. metamorphic belt and the India-Eurasia collision in Myanmar" name="DC.title" />
  221. <meta content="Barley, M.E." name="DC.creator" />
  222. <meta content="Pickard, A.L." name="DC.creator" />
  223. <meta content="Zaw, K." name="DC.creator" />
  224. <meta content="Rak, P." name="DC.creator" />
  225. <meta content="Doyle, M.G." name="DC.creator" />
  226. <meta content="260103 Vulcanology" name="DC.subject" />
  227. <meta content="260100 Geology" name="DC.subject" />
  228. <meta content="Situated south of the eastern Himalayan syntaxis at
  229. the western margin of the Shan-Thai terrane the highgrade
  230. Mogok metamorphic belt (MMB) in Myanmar occupies a key position in the tectonic evolution of Southeast Asia. The first sensitive high-resolution ion microprobe U-Pb in zircon geochronology for the MMB shows that strongly deformed granitic orthogneisses near Mandalay contain Jurassic (~170 Ma) zircons that have partly recrystallized during ~43 Ma high-grade metamorphism. A hornblende syenite
  231. from Mandalay Hill also contains Jurassic zircons with
  232. evidence of Eocene metamorphic recrystallization
  233. rimmed by thin zones of 30.9 plus or minus 0.7 Ma magmatic
  234. zircon. The relative abundance of Jurassic zircons in
  235. these rocks is consistent with suggestions that southern
  236. Eurasia had an Andean-type margin at that time. Mid-
  237. Cretaceous to earliest Eocene (120 to 50 Ma) I-type
  238. granitoids in the MMB, Myeik Archipelago, and Western Myanmar confirm that prior to the collision of India, an up to 200 km wide magmatic belt extended along the Eurasian margin from Pakistan to Sumatra.
  239. Metamorphic overgrowths to zircons in the orthogneiss
  240. near Mandalay date a period of Eocene (~43 Ma)
  241. high-grade metamorphism possibly during crustal
  242. thickening related to the initial collision between
  243. India and Eurasia (at 65 to 55 Ma). This was
  244. followed by emplacement of syntectonic hornblende
  245. syenites and leucogranites between 35 and 23 Ma.
  246. Similar syntectonic syenites and leucogranites intruded
  247. the Ailao Shan-Red River shear belt in southern China
  248. and Vietnam during the Eocene-Oligocene to Miocene,
  249. and the Wang Chao and Three Pagodas faults in
  250. northern Thailand (that most likely link with the MMB)
  251. were also active at this time. The complex history of
  252. Eocene to early Miocene metamorphism, deformation,
  253. and magmatism in the MMB provides evidence that it
  254. may have played a key role in the network of
  255. deformation zones that accommodated strain during
  256. the northwards movement of India and resulting
  257. extrusion or rotation of Indochina." name="DC.description" />
  258. <meta content="2003-05" name="DC.date" />
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  369. <h1 class="ep_tm_pagetitle">Jurassic to Miocene magmatism and metamorphism in the Mogok metamorphic belt and the India-Eurasia collision in Myanmar</h1>
  370. <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Barley, M.E.</span> and <span class="person_name">Pickard, A.L.</span> and <span class="person_name">Zaw, K.</span> and <span class="person_name">Rak, P.</span> and <span class="person_name">Doyle, M.G.</span> (2003) <xhtml:em>Jurassic to Miocene magmatism and metamorphism in the Mogok metamorphic belt and the India-Eurasia collision in Myanmar.</xhtml:em> Tectonics, 22 (3). pp. 4-1. ISSN 0278-7407</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/1879/1/Barley%2C_Pickard%2C_Zaw_et_al_TECTONICS_2003.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/1879/1/Barley%2C_Pickard%2C_Zaw_et_al_TECTONICS_2003.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />770Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="2362" 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/10.1029/2002TC001398">http://dx.doi.org/10.1029/2002TC001398</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Situated south of the eastern Himalayan syntaxis at&#13;
  371. the western margin of the Shan-Thai terrane the highgrade&#13;
  372. Mogok metamorphic belt (MMB) in Myanmar occupies a key position in the tectonic evolution of Southeast Asia. The first sensitive high-resolution ion microprobe U-Pb in zircon geochronology for the MMB shows that strongly deformed granitic orthogneisses near Mandalay contain Jurassic (~170 Ma) zircons that have partly recrystallized during ~43 Ma high-grade metamorphism. A hornblende syenite&#13;
  373. from Mandalay Hill also contains Jurassic zircons with&#13;
  374. evidence of Eocene metamorphic recrystallization&#13;
  375. rimmed by thin zones of 30.9 plus or minus 0.7 Ma magmatic&#13;
  376. zircon. The relative abundance of Jurassic zircons in&#13;
  377. these rocks is consistent with suggestions that southern&#13;
  378. Eurasia had an Andean-type margin at that time. Mid-&#13;
  379. Cretaceous to earliest Eocene (120 to 50 Ma) I-type&#13;
  380. granitoids in the MMB, Myeik Archipelago, and Western Myanmar confirm that prior to the collision of India, an up to 200 km wide magmatic belt extended along the Eurasian margin from Pakistan to Sumatra. &#13;
  381. Metamorphic overgrowths to zircons in the orthogneiss&#13;
  382. near Mandalay date a period of Eocene (~43 Ma)&#13;
  383. high-grade metamorphism possibly during crustal&#13;
  384. thickening related to the initial collision between&#13;
  385. India and Eurasia (at 65 to 55 Ma). This was&#13;
  386. followed by emplacement of syntectonic hornblende&#13;
  387. syenites and leucogranites between 35 and 23 Ma.&#13;
  388. Similar syntectonic syenites and leucogranites intruded&#13;
  389. the Ailao Shan-Red River shear belt in southern China&#13;
  390. and Vietnam during the Eocene-Oligocene to Miocene,&#13;
  391. and the Wang Chao and Three Pagodas faults in&#13;
  392. northern Thailand (that most likely link with the MMB)&#13;
  393. were also active at this time. The complex history of&#13;
  394. Eocene to early Miocene metamorphism, deformation,&#13;
  395. and magmatism in the MMB provides evidence that it&#13;
  396. may have played a key role in the network of&#13;
  397. deformation zones that accommodated strain during&#13;
  398. the northwards movement of India and resulting&#13;
  399. extrusion or rotation of Indochina.</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">Keywords:</th><td valign="top" class="ep_row">SE Asia, Myanmar, granitoids, metamorphism, zircon&#13;
  400. dating, geochronology, SHRIMP, Granite, Mogok</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/260103.html">260000 Earth Sciences &gt; 260100 Geology &gt; 260103 Vulcanology</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">1879</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">07 Sep 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">30 Jan 2008 15:26</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=1879;">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=1879">item control page</a></p>
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