地 质 图 例
00九年五月
目 录
二
一、地质年代、符号..................................................................................................................................................................................................1
（一）地层划分单位及地质年代单位...............................................................................................................................................................1 二、地层简表（辽西地区）......................................................................................................................................................................................2 三、侵入岩年代符号（以花岗岩为例）..................................................................................................................................................................4 四、岩石碎屑及有关粒级花纹规格表......................................................................................................................................................................5 五、岩石颜色..............................................................................................................................................................................................................6 六、矿物名称和符号..................................................................................................................................................................................................8 七、岩性花纹............................................................................................................................................................................................................17
（一）沉积岩.....................................................................................................................................................................................................17 （二）侵入岩.....................................................................................................................................................................................................20 （三）喷出岩.....................................................................................................................................................................................................22 （四）火山碎屑岩.............................................................................................................................................................................................23 （五）变质岩.....................................................................................................................................................................................................24 （六）接触变质、交代蚀变岩和动力变质岩.................................................................................................................................................26 八、岩石名称符号....................................................................................................................................................................................................28 九、岩石蚀变花纹....................................................................................................................................................................................................32 十、地质符号............................................................................................................................................................................................................34 十一、测点、采样点及工程符号............................................................................................................................................................................36 十二、地质、物探化探工作程度............................................................................................................................................................................39 十三、成矿区划、各类异常、矿床规模................................................................................................................................................................41 十四、矿床成因类型及矿床符号颜色....................................................................................................................................................................42 十五、储量估算中使用的符号................................................................................................................................................................................44 十六、地质观察点、工程、各种标本和样品的代号............................................................................................................................................45
一、地质年代、符号
（一）地层划分单位及地质年代单位
1
二、地层简表（辽西地区）
2
3
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