21 | Add to Reading ListSource URL: egi.utah.eduLanguage: English - Date: 2016-05-12 17:31:43
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22 | Add to Reading ListSource URL: www.oregongeology.orgLanguage: English - Date: 2016-02-11 18:02:26
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23 | Add to Reading ListSource URL: www.carbonet.netLanguage: English - Date: 2005-10-11 08:19:48
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24 | Add to Reading ListSource URL: www.icas.uh.eduLanguage: English - Date: 2011-11-25 05:44:37
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25 | Add to Reading ListSource URL: www.iagc.orgLanguage: English - Date: 2015-03-12 12:29:37
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26 | Add to Reading ListSource URL: cbth.uh.eduLanguage: English - Date: 2014-01-20 12:24:53
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27 | Add to Reading ListSource URL: dog.dnr.alaska.govLanguage: English - Date: 2016-05-04 20:19:26
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28 | Add to Reading ListSource URL: dog.dnr.alaska.govLanguage: English - Date: 2015-09-16 16:37:05
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29 | Add to Reading ListSource URL: www.ncgeolsoc.orgLanguage: English - Date: 2010-11-16 21:45:55
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30 | Add to Reading ListSource URL: www.alaskageology.orgLanguage: English - Date: 2013-09-04 17:42:48
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