Rocks May Be Oldest on Earth, Scientists Say


	Rocks May Be Oldest on Earth, Scientists Say

hitchhiker08

9-26-2008 10:58 AM

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quebec, geology, canada, oldest rocks

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/bbb2e3fd-38f3-4b72-9ff7-70bed792d81c/D750B4D2-425C-4550-8F98-98A56ADE8B93/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw" href="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw" style="font-size: 11px;">www.nytimes.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><H1>
<NYT_HEADLINE type=" " version="1.0">
Rocks May Be Oldest on Earth, Scientists Say
</NYT_HEADLINE>
</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.nytimes.com/img/167E925D-C09F-4600-975D-5B3B4D7F0F34" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><P class="caption">
Some scientists say ancient bedrock found in Canada could turn out to be younger rock formed from much older remnants.
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><P>A swath of bedrock in northern Quebec may be the oldest known piece of the earth’s crust.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><P>In an article appearing in Friday’s issue of the journal Science, scientists report that portions of that bedrock are 4.28 billion years old, formed when the earth was less than 300 million years old. </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.nytimes.com/img/EED0B421-F29F-42FC-899F-3C67A5C90B48" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><P>Other scientists are intrigued, but not yet entirely convinced that the rocks are quite that old. </P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><P>“I hope that I’m wrong,” Dr. Mojzsis said. “If that happens, I believe there will be a land rush by geologists to northern Quebec.”</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw"><P>If the rocks are as old as claimed, the significance would be that “they’re not dramatically different from rocks you would find today in Japan or places like that,” Dr. Carlson said.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/09/26/science/26rock.html?ei=5124&en=df6a3b5b6f0c2342&ex=1380081600&adxnnl=1&partner=digg&exprod=digg&adxnnlx=1222441228-vsAUG6TVv1UUL9yEHIhZJw">That suggests that the process of plate tectonics, reshaping and moving continents, could have already started on the very early earth.</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/D750B4D2-425C-4550-8F98-98A56ADE8B93/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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