Glaciers Caused Gravity Anomaly in Canada


	Glaciers Caused Gravity Anomaly in Canada

usmc6531

5-12-2007 11:07 PM

645 views

tags:

gravity, science, news, canada, glacier

1 Comment |

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5-16-2007 3:20 PM

aaronkjones

Does that mean heavier gravity? By what factor, I wonder?

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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/e59918bb-af52-4873-8c07-047a0fcddf66/F206A1AD-A3CC-455C-90E7-2C2DD0E78EC1/" 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://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001" href="http://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001" style="font-size: 11px;">news.aol.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001"><DIV> (May 11) - A mysterious dip in gravity over Canada has been a weighty topic for some scientists. Now satellite data reveal a thick ice sheet that once cloaked the region partially resolves this so-called gravitational anomaly. </DIV></blockquote><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://content6.clipmarks.com/images/clip-icon.gif" 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://articles.news.aol.com/news/object.adp?frame=article&type=photogalleries&id=13956" href="http://articles.news.aol.com/news/object.adp?frame=article&type=photogalleries&id=13956" style="font-size: 11px;">articles.news.aol.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://articles.news.aol.com/news/object.adp?frame=article&type=photogalleries&id=13956"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/articles.news.aol.com/img/15756424-EA6C-4FEB-8D56-78CF4C4DD445" alt="" /></div></blockquote><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://content8.clipmarks.com/images/clip-icon.gif" 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://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001" href="http://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001" style="font-size: 11px;">news.aol.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001"><DIV>Scientists have known that the Hudson Bay region features lower gravity than surrounding areas. While two theories have emerged to explain the strange phenomenon, conclusive evidence has been elusive. One theory involved a change in the area's overlying glacial weight as the Laurentide Ice Sheet melted. </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://news.aol.com/topnews/articles/_a/glaciers-caused-gravity-anomaly-in/20070512163909990001"><DIV> The new results, reported in the May 11 issue of the journal Science, provide a crude map of the ice sheet's structure as it was during the most recent ice age. Turns out, the now-melted ice left behind an imprint from which the Earth is still rebounding, and that imprint contributes to the weird gravity. </DIV></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/F206A1AD-A3CC-455C-90E7-2C2DD0E78EC1/blog/" title="blog or email this clip"><img src="http://content9.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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