Geophysicists Detect A Molten Rock Layer Deep Below The American Southwest


	Geophysicists Detect A Molten Rock Layer Deep Below The American Southwest

zephyr1

6-20-2007 2:32 PM

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tags:

geophysicists, molten rock, magnetic eruptions

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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://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/632bb609-59f5-4a2c-a296-960f13a85149/238E49FD-A10A-4E3E-BDB3-737E4F256635/" 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.sciencedaily.com/releases/2007/06/070620131527.htm" href="http://www.sciencedaily.com/releases/2007/06/070620131527.htm" style="font-size: 11px;">www.sciencedaily.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.sciencedaily.com/releases/2007/06/070620131527.htm"><table background="undefined" bgcolor=""><tr><TD width="50%" valign="top" align="left"><TABLE cellspacing="0" cellpadding="0" border="0"><TBODY><TR><TD valign="top" align="right"><EM>Source:</EM></TD><TD valign="top" align="left"><A class="blue" href="http://www.asu.edu/" target="_blank">Arizona State University</A></TD></TR><TR><TD valign="top" align="right"><EM>Date:</EM></TD><TD valign="top" align="left">June 20, 2007</TD></TR></TBODY></TABLE></TD></tr></table></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.sciencedaily.com/releases/2007/06/070620131527.htm"><P class="first"><EM><A href="http://www.sciencedaily.com">Science Daily</A> —</EM> A sheet of molten rock roughly 10 miles thick spreads underneath much of the American Southwest, some 250 miles below Tucson, Ariz. From the surface, you can't see it, smell it or feel it.</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.sciencedaily.com/releases/2007/06/070620131527.htm"><P>But Arizona geophysicists Daniel Toffelmier and James Tyburczy detected the molten layer with a comparatively new and overlooked technique for exploring the deep Earth that uses magnetic eruptions on the sun.</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.sciencedaily.com/releases/2007/06/070620131527.htm"><P>"We had two goals in this research," says Tyburczy. "We wanted to test a hypothesis about what happens to rock in Earth's mantle when it rises to a particular depth -- and we also wanted to test a computer modeling technique for studying the deep Earth."</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.sciencedaily.com/releases/2007/06/070620131527.htm"><P>He adds, "Finding that sheet of melt-rock tells us we we're on the right track."</P></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/238E49FD-A10A-4E3E-BDB3-737E4F256635/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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