Yellowstone Geology


	Yellowstone Geology

owlpath

1-25-2009 9:26 PM

215 views

tags:

yellowstone, caldera, geology

owlpath says:

A nice simple drawing of the Yellowstone Caldera.

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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/cbe3acba-5284-4e65-b163-889592fd23bf/F811ACB3-0DD9-4A89-9DBC-0CB1034F4E1C/" 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.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night" href="http://www.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night" style="font-size: 11px;">www.nationalparkstraveler.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night">Yellowstone Geologist Worries About What Goes "Bump" At Night</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.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night"><DIV class="field-item"><IMG width="565" height="288" title="YELL-Hotspot Graphic.gif" alt="" src="http://www.nationalparkstraveler.com/files/storyphotos/YELL-Hotspot Graphic.gif" /></DIV><DIV class="field-caption"><P>Yellowstone National Park graphic</P></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.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night">the <A class="bb-url" href="http://www.nps.gov/archive/yell/tours/fountainpaint/hotspot.htm">Yellowstone "hotspot,"</A> a plume of magma burning like a candle beneath the North American plate, and the <A class="bb-url" href="http://en.wikipedia.org/wiki/Basin_and_Range_Province">Basin and Range Province</A> just to the west, a landscape that has been defined ever-so-slowly (in human time) by the stretching of the Earth's crust and upper mantle. With the exertions of these various forces, it should be no surprise that Yellowstone is one of the more geologically active spots in North America.</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.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night">back in 1985 the park endured a swarm of about 3,000 earthquakes, including some that peaked at a magnitude of 4.7. That 1985 swarm, points out Dr. Lowenstern, went largely unnoticed by the general public simply because the real-time data was not available via a click or two of your mouse.</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.nationalparkstraveler.com/2009/01/yellowstone-geologist-worries-about-what-goes-bump-middle-night"><P>Is there a magic number of earthquake magnitude that would spur an evacuation of Yellowstone? </p> <P>In a word, no.</p> <P></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/F811ACB3-0DD9-4A89-9DBC-0CB1034F4E1C/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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