岩矿物理化学-第3章-熔体-矿物平衡热力学-中国地质大学(北京).pptVIP

玄武岩中的橄榄岩包体参考文献MichaelJ.ZiegGaryE.Lofgren.Anexperimentalinvestigationoftextureevolutionduringcontinuouscooling.JournalofVolcanologyandGeothermalResearch154(2006)74–88罗照华,白志达,赵志丹,詹华明,李莉.塔里木盆地南北缘新生代火山岩成因及其地质意义.地学前缘10(2003)179-189RollinsonH.1993.UsingGeochemicaldata:evaluation,presentation,interpretation.NewYork:JohnWileySons,pp.352赵振华.1997.微量元素地球化学原理.北京：科学出版社.238页PaulCRagland.1989.Basicanalyticalpetrology.NewYork:OxfordUniversityPress.Pp.369课外作业找一篇有关岩石地球化学的文章，从熔浆-矿物平衡热力学的角度发现其中的问题，并指出可能的解决方案。谢谢合作！Divisionoftexturesintoskeletalandnon-skeletalpopulations.TheCSDoftheskeletalcrystals(triangles)iscalculatedfromthedifferencebetweentheoriginalCSD(solidline)andtheCSDofthenon-skeletalcrystals(squares).Theseexamplesshowtherelationshipbetweenthetwosubpopulationsandtheoveralltexture.4、若干火成岩结构的解释Euhedralearlypyroxenewithlateinterstitialplagioclase(horizontaltwins).Stillwatercomplex,Montana.Fieldwidth5mm.?JohnWinterandPrenticeHall.辉绿结构Asinglepyroxeneenvelopsseveralwell-developedplagioclaselaths.Width1mm.Skaerg?rdintrusion,E.Greenland.?JohnWinterandPrenticeHall.包含结构、辉长结构、辉绿结构M反应边结构Olivinemantledbyorthopyroxenein(a)plane-polarizedlightand(b)crossednicols,inwhicholivineisextinctandthepyroxenesstandoutclearly.Basalticandesite,Mt.McLaughlin,Oregon.Width~5mm.?JohnWinterandPrenticeHall.反应边结构筛状结构Sievetextureinacumulophyricclusterofplagioclasephenocrysts.Notethelaternon-sieverimonthecluster.Andesite,Mt.McLoughlin,OR.Width1mm.?JohnWinterandPrenticeHall.筛状结构形成的可能原因吸回结构（溶蚀结构）Resorbedandembayedolivinephenocryst.Width0.3mm.?JohnWinterandPrenticeHall.吸回的可能原因？嵌晶结构与包含结构WalteND,BonsPD,PashierCW,KoehnD(2003)Disequilibriummeltdistributionduringstaticrecrystallization.Geology31:1009–1012Graingrowthinpartiallymoltenolivinea