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	<title>OR/14/040 Cape Meredith Complex and Gondwana break-up - Revision history</title>
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	<updated>2026-04-04T12:33:59Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>http://earthwise.bgs.ac.uk/index.php?title=OR/14/040_Cape_Meredith_Complex_and_Gondwana_break-up&amp;diff=25157&amp;oldid=prev</id>
		<title>Dbk: Protected &quot;OR/14/040 Cape Meredith Complex and Gondwana break-up&quot; ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)) [cascading]</title>
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		<updated>2016-02-08T12:14:54Z</updated>

		<summary type="html">&lt;p&gt;Protected &amp;quot;&lt;a href=&quot;/index.php/OR/14/040_Cape_Meredith_Complex_and_Gondwana_break-up&quot; title=&quot;OR/14/040 Cape Meredith Complex and Gondwana break-up&quot;&gt;OR/14/040 Cape Meredith Complex and Gondwana break-up&lt;/a&gt;&amp;quot; ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)) [cascading]&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:14, 8 February 2016&lt;/td&gt;
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		<updated>2016-02-08T12:12:00Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
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		<title>Ajhil at 15:01, 5 February 2016</title>
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		<updated>2016-02-05T15:01:06Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;__NOTOC__&lt;br /&gt;
{{OR/14/040}}&lt;br /&gt;
No new field or laboratory work has been reported from the Proterozoic, Cape Meredith Complex ‘basement’, but published data has been used by Ramos (2008)&amp;lt;ref name=&amp;quot;Ramos 2008&amp;quot;&amp;gt;RAMOS, V A. 2008. Patagonia: A Palaeozoic continent adrift? Journal of South American Earth Sciences, Vol.&amp;amp;nbsp;26, 235–251.&amp;lt;/ref&amp;gt; to reiterate the correlation with the Deseado Massif of Patagonia that was illustrated by Borrello (1963)&amp;lt;ref name=&amp;quot;Borrello 1963&amp;quot;&amp;gt;  BORRELLO, A V. 1963. &amp;#039;&amp;#039;Sobre la geologia de las Islas Malvinas&amp;#039;&amp;#039;. Ministerio de Educación y Justica, Buenos Aires, Argentina.     &amp;lt;/ref&amp;gt;.  Implicit in this correlation is rejection of the rotational model of a Falklands microplate  detaching from the south-east side of South Africa as envisaged by Adie (1952)&amp;lt;ref name=&amp;quot;Adie 1952&amp;quot;&amp;gt;ADIE, R J. 1952. The position of the Falkland Islands in a reconstruction of Gondwanaland. Geological Magazine, Vol.&amp;amp;nbsp;89, 401–410.&amp;lt;/ref&amp;gt;. Instead, the Falkland Islands and the Falkland Plateau are seen as an original promontory from the South American continental margin, albeit one that has undergone much extension. This interpretation is also favoured by some researchers working with offshore geophysical data, for example Lawrence and others (1999)&amp;lt;ref name=&amp;quot;Lawrence 1999&amp;quot;&amp;gt;LAWRENCE, S R, JOHNSON, M, TUBB, S R, and MARSHALLSEA, S J. 1999. Tectono-stratigraphic evolution of the North  Falkland region. &amp;#039;&amp;#039;In&amp;#039;&amp;#039;: Cameron, N R, Bate, R H, and Clure, V S. (eds) &amp;#039;&amp;#039;The Oil and Gas Habitats of the South Atlantic&amp;#039;&amp;#039;. Geological Society, London, Special Publications, No.&amp;amp;nbsp;153, 409–424.&amp;lt;/ref&amp;gt;. Conversely, Macdonald and others (2003)&amp;lt;ref name=&amp;quot;Macdonald 2003&amp;quot;&amp;gt;MACDONALD, D, GOMEZ-PEREZ, I, FRANZESE, J, SPALLETTI, L, LAWVER, L, GAHAGAN, L, DALZIEL, I, THOMAS, C, TREWIN, N, HOLE, M, and PATON, D. 2003. Mesozoic break-up of SW Gondwana: implications for regional hydrocarbon potential of the southern South Atlantic. Marine and Petroleum Geology, Vol.&amp;amp;nbsp;20, 287–308.&amp;lt;/ref&amp;gt; stress the convincing evidence for rotation of a Falklands microplate and accommodate that within a Gondwana break-up model that treats South America as a mosaic of four separate plates. A recent review by Dalziel and others (2013)&amp;lt;ref name=&amp;quot;Dalziel 2013&amp;quot;&amp;gt;DALZIEL, I W D, LAWVER, L A, NORTON, I O, and GAHAGAN, L M. 2013. The Scotia Arc: Genesis, Evolution, Global Significance. &amp;#039;&amp;#039;Annual Review of Earth and Planetary Science&amp;#039;&amp;#039;, Vol.&amp;amp;nbsp;41, 767–793.&amp;lt;/ref&amp;gt; also incorporate a ‘Lafonian’ microplate, rotating from an original position to the south-east of South Africa, in their reconstruction of the opening of the South Atlantic and genesis of the Scotia Arc. Note that Dalziel and others prefer the term ‘Lafonian microplate’ to ‘Falklands microplate’&amp;amp;nbsp;—&amp;amp;nbsp;most probably as an apolitical name avoiding the Falklands-Malvinas controversy.&lt;br /&gt;
==References==&lt;br /&gt;
&amp;lt;References/&amp;gt;&lt;br /&gt;
[[Category: OR/14/040 Recent contributions on Falkland Islands bedrock geology, with an inventory of representative lithostratigraphical specimens held by the British Geological Survey | 05]]&lt;/div&gt;</summary>
		<author><name>Ajhil</name></author>
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