查询词典 paulite
- 与 paulite 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on isotopic ages and the cycle of magamtism, the ages of Yanbian granites can be subdivided into five periods:①late Permian granites (260-245Ma), the typical plutons are Liukesong and Liangbing plutons, and the main rock type include diorite-monzonitic-K syenogranites;②Triassic granites (225-200Ma), the typical plutons are Sandaogou, Chunyang, Qishiergedingzi, Dahuanggou, Naozhi, and Qinglinzi plutons, the main rock type include quartz dioritesgranodiorites-monzonitic-alkali granites;③early Jurassic granites (190-180Ma), which composed of quartz diorites-granodiorites - monzonitic ,and the typical plutons are Shimen, Miantian, Daxinggou and Yushuchuan rock;④Middle-Late Jurassic (170-150Ma), which composed of granodiorites- monzonitic- garnet-bearing muscovite granites, the typical plutons are Huangniling, Weizigou, Loutuoshan and Dongqing rock;⑤early Cretaceous (about 130Ma), the typical pluton is Zhongping pluton, and its rock type is paulite diorite.
另外,根据同位素年龄和岩石组合并考虑到岩浆的旋回性,将延边显生宙花岗岩进一步划分为五个期次:1。晚二叠世(260-245Ma),代表性岩体为六棵松和亮兵,主体岩性为辉石闪长岩、二长花岗岩和钾长花岗岩;2。三叠世(225-200Ma),代表性岩体为三道沟、春阳、七十二个顶子、大荒沟、闹枝、青林子,岩石组合为石英闪长岩—花岗闪长岩—二长花岗岩—碱长花岗岩,以花岗闪长岩和二长花岗岩为主;3。早侏罗世(190-180Ma),石英闪长岩—花岗闪长岩—二长花岗岩组合,主体岩性为花岗闪长岩,代表性岩体有石门、棉田、大兴沟、榆树川等;4。中侏罗世(170-150Ma),主体岩性为花岗闪长岩和含石榴石花岗岩,代表性岩体有黄泥岭、苇子沟、骆驼山、东清5。
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