41![National Park Service U.S. Department of the Interior National Park Service U.S. Department of the Interior](https://www.pdfsearch.io/img/3a87a9673c9eb42331a439117e50889a.jpg) | Add to Reading ListSource URL: www.nature.nps.govLanguage: English - Date: 2010-01-06 13:38:33
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42![](https://www.pdfsearch.io/img/07a66639823664ecd01c2557282e93f9.jpg) | Add to Reading ListSource URL: www.mantleplumes.orgLanguage: English - Date: 2005-08-13 22:03:42
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43![](https://www.pdfsearch.io/img/b5651648adf152f9b6083c0d03cf5bf7.jpg) | Add to Reading ListSource URL: www.jamstec.go.jpLanguage: English - Date: 2011-07-28 02:27:33
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44![](https://www.pdfsearch.io/img/90db93c79c136c2494dc8e66741592bc.jpg) | Add to Reading ListSource URL: modis.higp.hawaii.eduLanguage: English - Date: 2003-03-24 15:19:40
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45![](https://www.pdfsearch.io/img/b7fcad2ec86c484c4dafab3fea2a462d.jpg) | Add to Reading ListSource URL: geopubs.wr.usgs.govLanguage: English - Date: 2003-12-03 16:04:16
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46![](https://www.pdfsearch.io/img/e4621ae4f900668be7084ac7c0468ba1.jpg) | Add to Reading ListSource URL: geowords.comLanguage: English - Date: 2011-03-13 17:18:54
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47![](https://www.pdfsearch.io/img/607642b0afd5653c34ac0e14943412c1.jpg) | Add to Reading ListSource URL: www.gzn.uni-erlangen.deLanguage: English - Date: 2008-12-26 07:49:41
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48![](https://www.pdfsearch.io/img/068b6934c25df8a46e33bcabb0c9dbe2.jpg) | Add to Reading ListSource URL: www-odp.tamu.eduLanguage: English - Date: 2006-09-22 09:50:39
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