alteration rock meaning in Chinese
蚀变岩石
Examples
- The assemblage of garnet - diopside in the silicate alteration rocks is different from that in the skarn of traditional idea
硅酸盐蚀变岩中的“石榴子石透辉石”组合与传统理解的“夕卡岩”内的相同组合名同实异。 - The subvolcanic hydrothermal processes show a series responses of alteration rocks with some regularity of space and time evolutions , the main metallogensis was between the silicate alterations ( high - middle temperature and prssure ) and sulfide alterations ( low temperature and pressure )
次火山水热活动有一系列不同类型，并具一定空间分布和时间演化规律的蚀变岩响应，主期成矿作用发生在中高温压硅酸盐蚀变与中低温压硫化物蚀变之过渡阶段。 - K - ar age of an illite from alteration rock in the contact zone around lianhuashan porphyry is 38 . 6ma . with referencing to the main metallogenic period of yulong copper metallogenic zone and of ailaoshan gold metallogenic zone , it is suggested that the time of formation of deposits in the district studied is probably in a period of time from 38 . 6ma at earliest to 20ma at latest . this time is equivalent to the origination time of two important tectonic events , i . e . , lanping movement and the turning point when ailaoshan - red river fault turned from sinisteral into dextral
获得了莲花山岩体周围接触带蚀变岩中伊利石k - ar年龄38 . 6ma ，参考玉龙铜矿带和哀牢山金矿带的主要成矿期(分别为30ma左右及26ma ) ，厘定本矿集区成矿年龄下限为38 . 6ma ，上限为20ma ，与两次重要的构造事件?兰坪运动的起始时间及哀牢山?红河断裂由左旋转为右旋的时间相当。