2022年岩石学知识点总结要点 .pdf

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1、学习必备欢迎下载岩石学知识要点总结一、名词解释1.岩浆:是上地幔或地壳部分熔融的产物,成分以硅酸盐为主,含有挥发分,也可以含有少量固体物质,是高温粘稠的熔融体。是上地幔或地壳部分熔融的产物,成分以硅酸盐为主,含有挥发分,也可以含有少量固体物质,是 高温粘稠的熔融体。2.岩浆作用:是岩浆的形成、演化及侵入、喷出和冷凝结晶最终形成火成岩的复杂过程。3.岩浆岩的结构:是指组成岩石的矿物的结晶程度、颗粒大小、晶体形态、自形程度和矿物之间(包括玻璃)的相互关系。4.原生岩浆:由地幔或地壳岩石经熔融或部分熔融作用形成的成分未遭受变异的岩浆。5.辉长结构:是辉长岩的典型结构,表现为基性斜长石和辉石的自形程度

2、相近,均呈现半自形-它形粒状。6.粗玄结构:又称间粒结构。在不规则排列的长条状斜长石微晶间隙中,充填若干个粒状辉石和磁铁矿物的细小颗粒。7.拉斑玄武结构:填隙物有辉石、磁铁矿物及玻璃质8.粗面结构:喷出岩的基质中钾长石微晶呈平行排列。9.反应边结构:早生成的矿物或捕虏晶,与熔浆发生反应,当这种反应不彻底时,在早生成的矿物外围,形成另一种成分完全不同的新矿物,完全或局部包围着早结晶的矿物。反应边结构:早生成的矿物或捕虏晶,与熔学习必备欢迎下载浆发生反应,当这种反应不彻底时,在早生成的矿物外围,形成另一种成分完全不同的新矿物,完全或局部包围着早结晶的矿物。10.里特曼指数:=(K2O+Na2O)2

3、/(SiO2-43)(wt%)9 者为过碱性岩。11.安山岩:是中酸性火山岩中分布较广泛的一种熔岩,常常形成典型的火山锥或呈岩流、岩穹、岩钟产出。12.粗玄岩:结晶程度较好,为全晶质,基质具粗玄结构,具喷出产状。13.熔蚀结构:在地下深处生成的斑晶上升到地表或浅处时,由于物化条件发生了较大的变化,例如压力降低使一些固相的熔点降低,岩浆在地表氧化,温度一度升高等,会造成早已结晶的斑晶熔蚀,形成斑晶的熔蚀结构14.包橄结构:橄榄辉石岩中,常见到大的辉石晶体内,包含有许多被溶蚀的浑圆状的小橄榄石颗粒15.文象结构:石英呈一定的外形(如尖棱形,象形文字形等)有规律地镶嵌在钾长石中,这些石英在正交偏光下

4、同时消光。肉眼可见的叫文象结构16.环带结构:常见于一些固溶体系列的矿物中,以斜长石最常见(图3-4)。固溶体矿物从中心向边缘具有不同的端元组成而形成环带,镜下显示不同的消光位。可出现An 分子由中心向边缘递减的正环带,也 可出现反向变化的反环带及交替变化的韵律环带。17.镁铁矿物:矿物中FeO、MgO 的含量较高,包括橄榄石类、辉石类、角闪石类及黑云母类。18.蛇绿岩:蛇绿岩是代表由橄榄岩-蛇纹岩、辉长岩、辉绿岩、枕状熔岩/细碧岩和伴生沉积物-放射虫硅质岩、远洋粘土和有孔虫灰岩组成的一套文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

5、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C

6、9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

7、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C

8、9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

9、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C

10、9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

11、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3学习必备欢迎下载岩石组合的术语。一般认它代表了洋中脊处的大洋岩石圈组成,并将蛇绿岩的出现作为古板块缝合线位置的标志。19.细晶岩:细晶岩是一种浅色的脉岩,它以缺乏暗色矿物,并具细晶结构为特征。20.斑状结构:岩石中矿物颗粒分为大小截然不同的两群,大的称为斑晶,小的及不结晶的玻璃质称为基质。21.似斑状结构:岩石中矿物颗粒分为大小截然不同的两群,大的称为斑晶,小的为基质,基质为显晶质。22.斑岩:斑晶以石英、碱性长石和似长石为主。23.玢岩:斑晶以斜长石和暗色矿物

12、为主。24.超镁铁岩:超镁铁岩在化学成分上贫SiO2 及 K2O、Na2O,富 MgO、FeO。矿物成分上镁铁质矿物(暗色矿物)含量较高,色率大于90%25.超基性岩:指岩石SiO2 含量小于45%的火成岩26.喷出岩:是岩浆及其它岩石经火山喷出地表后冷凝和堆积而成的岩石。31.熔结凝灰岩:塑变玻屑仍可恢复弧面棱角状形态,塑变岩屑发育。塑变碎屑受刚性碎屑挤压,在其边缘,尤其是在受压的一方,出现明显的变形定向,因此具明显的流状构造。常呈巨厚堆积,剖面上位于喷发单元的中上部。32.火山角砾结构:粒度介于64mm-2mm 之间的火山碎屑物含量一般50%,不少于1/3。33.凝灰结构:粒度介于2-0.

13、0625mm 之间的火山碎屑物含量一般50%,文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C

14、4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6

15、HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C

16、4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6

17、HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C

18、4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6

19、HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3学习必备欢迎下载不少于1/3。34.集块结构:粒度 64mm 的火山碎屑物含量一般50%,不少于1/3。35.火山碎屑岩:是火山作用形成的各种火山碎屑物质堆积后经多种方式固结而成的岩石,其中含少量的正常沉积物时,则是火山岩与沉积岩的过渡类型。36.细晶结构:是由细粒它形的长石和石英组成的细粒它形粒状结构。在手标本

20、上,断口常呈细砂糖状37.二长结构:斜长石自形程度高,钾长石呈它形分布于间隙中,或斜长石晶体嵌在大块的钾长石之中38.辉绿结构:是浅成基性侵入岩(辉绿岩)中的典型结构。斜长石和辉石颗粒大小相差不多,杂乱分布的自形晶斜长石和辉石颗粒大小相差不多,自形晶斜长石之间形成近三角形空隙,其中充填单个的它形辉石颗粒。39.堆晶结构:是在粗大的、相互连结的自形到半自形晶体粒间充填其它矿物的一种结构。这些粗大的晶体称为堆晶(Cumulus crystals),主要是岩浆中早晶出的晶体由重力分异作用沉淀到岩浆房底部的,由于结晶早,具充分的自由生长空间,因此自形程度较好。40.硅铝矿物:矿物中SiO2 与 Al2

21、O3 的含量较高,不含 FeO 和 MgO,包括石英类、长石类及似长石类。他们基本不含色素原子,颜色较浅,所以又称为浅色矿物。二、填空第一节岩浆岩习题1.按主要造岩矿物颗粒的大小划分岩石结构,粗粒结构、中粒结构、细文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C

22、9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

23、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C

24、9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

25、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C

26、9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P

27、8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3学习必备欢迎下载粒结构的矿物粒径(以mm 为单位)范 围依次分别是d5mm、2-5mm 和0.2-2mm。2.条纹结构是碱性长石和 钠长石有规律地

28、交生;文象结构是石英有规律地镶嵌在碱性长石中。3.安山岩的基质结构常见的有两种:(1)斜长石微晶呈平行定向或半定向排列,其间隙中充填的是辉石和磁铁矿等粒状矿物,称为 交织结构;(2)斜长石微晶呈杂乱半平行排列,微晶之间充填较多的玻璃质或隐晶质,称为 安山结构。4.火成岩不整合侵入体主要有岩墙,岩基,岩株 三种类型。5.火成岩的化学成分分类,按SiO2 含量划分为四大类:超基性岩、基性岩、中性岩、酸性岩的SiO2 含量(单位为 wB/)分别依次是66%。6.与侵入岩的橄榄岩、辉长岩、闪长岩、花岗闪长岩、花岗岩化学成分相当的对应的火山岩岩石名称分别依次是苦橄岩,玄武岩,安山岩,英安岩,流纹岩。7.

29、常见的刚性火山碎屑物有岩屑 和 晶屑。8.火山岩岩石系列的划分,首先根据w(SiO2)w(K2ONa2O)图划分为 碱性系列和 亚碱性系列。9.根据SiO2 含量,将岩浆岩分为超基性岩、基性岩、中性岩、酸性岩。10.辉绿岩属于岩浆岩的基 性岩类,这种岩石的主要矿物成分是斜长石 和 辉石。11.岩浆岩中SiO2 含量大于65%的喷出岩称为流纹岩;SiO2 含量为文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U

30、3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN

31、3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U

32、3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN

33、3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U

34、3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN

35、3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U

36、3学习必备欢迎下载52%-65%的浅成岩称为闪长斑岩,SiO2 含 量小于45%的深成岩称为橄榄岩。12.鲍文反应序列中最先结晶的矿物是橄榄石。13.与玄武岩成分相当的侵入岩是辉长岩。14.岩浆的粘度主要受温度,压力,SiO2 三个因素控制。15.按 SiO2 含量,岩浆岩可分为超基性岩、基性岩、中性岩、酸性岩四类。按里特曼指数()又分为,钙碱性,碱性,过碱性三个系列。16.根据岩浆岩中造岩矿物的化学成分,可将矿物分为铁镁矿物和 硅铝矿物两类。17.根据矿物在岩浆岩中的含量和在岩浆岩分类中的作用,可以分为主要矿物,次要矿物,副矿物三类。18.斑岩和玢岩仅用于浅成岩中斑状结构的岩石。斑晶以斜长石

37、和 暗色矿物为主称玢岩;斑晶以石英、碱性长石和似长石为主,称斑岩。19.基性喷出岩代表性岩石是玄武岩,其往往具斑状结构,基质常具粗玄结构、间隐结构、拉斑玄武结构。20.正长岩粗面岩类主要造岩矿物有碱性长石。粗面岩常具有粗面结构,其特征是碱性长石微晶近于平行排列,若遇斑晶时,微晶绕过斑晶。21.岩浆岩的碱性程度是指岩石的碱(Na2O+K2O)饱和度,确定岩浆岩碱性程度的里特曼指数()(K2O+Na2O)2/(SiO2-43)(wt%)。22.斑状结构的斑晶和基质多形成于不同 世代;似斑状结构的斑晶和基质则基本上是同 世代的产物。文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9

38、X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8

39、E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9

40、X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8

41、E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9

42、X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8

43、E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9

44、X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3学习必备欢迎下载23.常见交生结构有文象结构、条纹结构、和蠕虫结构。24.超基性岩以SiO2 含量 45%及不含石英 为特征,超镁铁质岩以镁铁矿物含量高 而命名。25.火山岩一般分为碱性和亚碱性两个系列,后者又可分为钙碱性和拉斑玄武岩系列。26.安山岩是一种分布较广的火山熔岩,它主要分布于活动大陆边缘、造山带,现代岛弧地区。环太平洋地区新生代火山岩为玄武岩、安山岩和流纹岩组合,且以安山岩为主,地质上称为安山岩线。27.原生岩

45、浆的种类并不多,但地壳中的岩浆岩种类却多种多样,其形成机理是岩浆分异作用、同化作用,混和作用使成分均一的岩浆演化成多种成分岩浆固结的结果。28.某岩石具中细粒结构,块状构造,含斜长石60,角闪石20,石英 10,钾长石5,黑云母3,磁铁矿1,定名为石英闪长岩岩29.某岩石浅灰绿色,块状构造,斑状结构。斑晶为中粒的斜长石、角闪石,基质为隐晶质,定名为安山岩岩。30.某岩石斑晶为钾长石、石英,基质细粒结构,基质中主要矿物为钾长石、石英、酸性斜长石,应定名为斑状花岗岩岩。31.某种岩石含橄榄石60,辉石36,尖晶石4,定名为尖晶石橄榄岩岩。32.某种岩石含橄榄石95,辉石 3,角闪石、铬铁矿少量,定

46、名为橄榄岩岩。33.按粒度大小,常见火山碎屑有火山集块,火山角砾,火山凝灰文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V

47、7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编

48、码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V

49、7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编

50、码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V7M2X9 ZK8C9X5C4U3文档编码:CS2V6A6P8E6 HN3Q8V

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