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	<title>Comments on: Rock of Ages</title>
	<atom:link href="http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/</link>
	<description>I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog.</description>
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		<title>By: GQ</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121785</link>
		<dc:creator>GQ</dc:creator>
		<pubDate>Mon, 29 Sep 2008 11:17:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121785</guid>
		<description>&quot;This must be a geologist’s dream; finding the oldest rocks ever on Earth!&quot;

Yeah, but imagine how he felt the day after.
&quot;What did you do yesterday?&quot;
&quot;I found the oldest rock on Earth!&quot;
&quot;Nice! What&#039;re you going to do today?&quot;
&quot;Um... &quot;</description>
		<content:encoded><![CDATA[<p>&#8220;This must be a geologist’s dream; finding the oldest rocks ever on Earth!&#8221;</p>
<p>Yeah, but imagine how he felt the day after.<br />
&#8220;What did you do yesterday?&#8221;<br />
&#8220;I found the oldest rock on Earth!&#8221;<br />
&#8220;Nice! What&#8217;re you going to do today?&#8221;<br />
&#8220;Um&#8230; &#8220;</p>
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		<title>By: Utakata</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121623</link>
		<dc:creator>Utakata</dc:creator>
		<pubDate>Sun, 28 Sep 2008 04:27:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121623</guid>
		<description>Thanks, Mr. Grizzly...that sorta makes things a little more clear on what was otherwise a little too astronomically mind boggling for me. 
So that makes more sense now...it was cocooned not shaded. :)</description>
		<content:encoded><![CDATA[<p>Thanks, Mr. Grizzly&#8230;that sorta makes things a little more clear on what was otherwise a little too astronomically mind boggling for me.<br />
So that makes more sense now&#8230;it was cocooned not shaded. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>By: amphiox</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121594</link>
		<dc:creator>amphiox</dc:creator>
		<pubDate>Sat, 27 Sep 2008 23:42:21 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121594</guid>
		<description>I must say that claiming a 600y earth really is a whole level of nutjob greater than a 6000y earth. There is extensive written documentation of historical events older than 600y, but for 6000y I&#039;m not aware of much, so the evidence is primarily archeological. That means you&#039;d have to deny a whole additional level of evidence to claim a 600y earth. An even higher level of reality denial would be to claim a 60y earth, where one would have to disregard recorded video and audio evidence.</description>
		<content:encoded><![CDATA[<p>I must say that claiming a 600y earth really is a whole level of nutjob greater than a 6000y earth. There is extensive written documentation of historical events older than 600y, but for 6000y I&#8217;m not aware of much, so the evidence is primarily archeological. That means you&#8217;d have to deny a whole additional level of evidence to claim a 600y earth. An even higher level of reality denial would be to claim a 60y earth, where one would have to disregard recorded video and audio evidence.</p>
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		<title>By: Grizzly</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121575</link>
		<dc:creator>Grizzly</dc:creator>
		<pubDate>Sat, 27 Sep 2008 21:42:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121575</guid>
		<description>Utakata,  no, it isn&#039;t a shady spot.  It survived 4.whatever billion years of erosion and glaciation.  What you are seeing when you visit the Pre-Cambrian Shield is the bones of the earth.  When you walk on the Shield you are walking on what once was far inside mountains.</description>
		<content:encoded><![CDATA[<p>Utakata,  no, it isn&#8217;t a shady spot.  It survived 4.whatever billion years of erosion and glaciation.  What you are seeing when you visit the Pre-Cambrian Shield is the bones of the earth.  When you walk on the Shield you are walking on what once was far inside mountains.</p>
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		<title>By: Utakata</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121562</link>
		<dc:creator>Utakata</dc:creator>
		<pubDate>Sat, 27 Sep 2008 19:38:53 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121562</guid>
		<description>Um...I know that around the Canadian Shield there is some pretty old out croppings of rock...but I&#039;m curious to know how this thing survided all these years intact with very little erosion/contamination/etc. It must been in a real shady spot.</description>
		<content:encoded><![CDATA[<p>Um&#8230;I know that around the Canadian Shield there is some pretty old out croppings of rock&#8230;but I&#8217;m curious to know how this thing survided all these years intact with very little erosion/contamination/etc. It must been in a real shady spot.</p>
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		<title>By: Radwaste</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121546</link>
		<dc:creator>Radwaste</dc:creator>
		<pubDate>Sat, 27 Sep 2008 16:05:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121546</guid>
		<description>Hey, folks read up on the Apollo missions sometime. You&#039;ll see that the rocks from the Moon have been spared for public display because they&#039;ve been scanned already, and/or have characteristics identical, so far as can be measured, to other rocks still in the lab.

Count the years. It&#039;s been awhile.

One of the minerals brought back is now called &quot;armalcolite&quot;, named for Armstrong-Aldrin-Collins, who brought it back. It doesn&#039;t occur on Earth.

Those of you with dating problems - sorry, not that kind - can actually get the info from a practicing Christian who knows when to read his instruments. &lt;a href=&quot;http://www.asa3.org/ASA/resources/Wiens.html&quot; rel=&quot;nofollow&quot;&gt;See &quot;Radiometric Dating - a Christian View&quot;&lt;/a&gt;. It&#039;s remarkably free of dogma.

You can also go find a copy of &lt;i&gt;Nuclides and Isotopes&lt;/i&gt;, by GE Nuclear Energy. Your library might have one.

This stuff is studied so intently I don&#039;t have the words to explain it.</description>
		<content:encoded><![CDATA[<p>Hey, folks read up on the Apollo missions sometime. You&#8217;ll see that the rocks from the Moon have been spared for public display because they&#8217;ve been scanned already, and/or have characteristics identical, so far as can be measured, to other rocks still in the lab.</p>
<p>Count the years. It&#8217;s been awhile.</p>
<p>One of the minerals brought back is now called &#8220;armalcolite&#8221;, named for Armstrong-Aldrin-Collins, who brought it back. It doesn&#8217;t occur on Earth.</p>
<p>Those of you with dating problems &#8211; sorry, not that kind &#8211; can actually get the info from a practicing Christian who knows when to read his instruments. <a href="http://www.asa3.org/ASA/resources/Wiens.html" rel="nofollow">See &#8220;Radiometric Dating &#8211; a Christian View&#8221;</a>. It&#8217;s remarkably free of dogma.</p>
<p>You can also go find a copy of <i>Nuclides and Isotopes</i>, by GE Nuclear Energy. Your library might have one.</p>
<p>This stuff is studied so intently I don&#8217;t have the words to explain it.</p>
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		<title>By: Thomas</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/comment-page-1/#comment-121538</link>
		<dc:creator>Thomas</dc:creator>
		<pubDate>Sat, 27 Sep 2008 15:21:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2008/09/26/rock-of-ages-2/#comment-121538</guid>
		<description>I presume that we&#039;ve pretty much done all the research on that rock that we think we can. Doesn&#039;t having people handle it at random potentially compromise geological data that can be mined from it? Or, do we just split it open and test the inside, which hasn&#039;t been handled?</description>
		<content:encoded><![CDATA[<p>I presume that we&#8217;ve pretty much done all the research on that rock that we think we can. Doesn&#8217;t having people handle it at random potentially compromise geological data that can be mined from it? Or, do we just split it open and test the inside, which hasn&#8217;t been handled?</p>
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