Untersuchungen von Wörner u. Koll.: http://www.faz.net/s/Rub2542FB5D98194DA3A1F14B5B01EDB3FB/Doc~EE92C7522AA3741B182E0E7DBB1547431~ATpl~Ecommon~Scontent.html?nwl_wissenschaft Quelle hiervon: http://petrology.oxfordjournals.org/content/51/5/1053.abstract und http://www.minsocam.org/msa/ammin/TOC/Abstracts/2010_Abstracts/AS10_Abstracts/Wetzel_p1353_10.pdf
--Scout1312 23:09, 3. Nov. 2010 (CET)