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- calc alkali rock series 鈣鹼岩系
- Keywords Alkali rock series;carbonatite;comagma;syngenesis;Bayan Obo; 鹼性岩系;碳酸岩;同源岩漿;同生作用;白雲鄂博;
- alkali rock series 鹼性岩系
- Ore-forming has close relation with rich-alkalescence geotherm and calc alkali syeogranite, which belongs to middle temperature geothermal beryllium deposit, and formed in Mesozoic Yanshan period. 礦床的形成與富鹼性熱液和鈣鹼性正長花崗岩有關,為中溫熱液型鈹礦床,形成於中生代燕山晚期。
- Based on the contrasting of the formation time of ore hosted rock, alkali rock, diabase and uraninite, and study on the geochemical features of the alkali rock, The study pres... 本文根據含礦主岩、鹼交代岩、輝綠岩與瀝青鈾礦在形成時間上的對比,以及鹼交代岩的地球化學特徵研究,認為石土嶺鈾礦床的鹼交代作用主要是地幔流體沿深層次伸展構造上升過程中產生的交代作用形成的。
- WHAT IS THE AVERAGE CONCENTRATION OF ALUMINIUM IN HIGH ALKALI ROCKS? 在強鹼岩石中鋁的平均濃度是多少?
- They also do not belong to the south meta-volcanic rock series of Northern Qilian Caledonides tectonic belts. 也不屬於北祁連加里東構造帶南帶變質火山岩系的一部分。
- The emergence stratum mainly is Palaeozoic sediment rock series, drape, rift grow,magma activity is delicacy. 出露地層主要為一套古生代沉積(淺變質)岩系,褶皺、斷裂構造發育,岩漿活動微弱。
- In South China,the Early Cambrian black rock series is rich in metallic and nonmetallic mineral ersources. 我國南部早寒武世黑色岩系中,蘊藏豐富的金屬和非金屬礦產。
- The pre-Devonian "Gomori Group" shallow metamorphic rock series are mostly redelineated as the Permian strata. 解體了測區南部前泥盆系「戈木日群」淺變質岩系,大部分釐定為二疊系;
- Abundant copper material was derived from volcanic rock series (olivine tholeiite) in the rift. 豐富的銅質來自巨厚的裂谷火山岩系(橄欖拉斑玄武岩)。
- Wangjiawaizi gold deposit occurrs in Lower Proterozoic opimetamorphic rock series. 王家崴子金礦床賦存於遼南古元古代淺變質岩系中。
- Volcanic rock series include mainly the shoshonite series and subordinately the high-K calc-alkalic series. 火山岩系列主要為橄欖玄粗岩系,其次為高鉀鈣鹼性岩系;
- calc alkali series 鈣鹼系
- The metallogenic substance mainly comes from the Archeozoic metamorphic rock series in basement. 成礦物質主要來源於基底太古界變質岩系。
- The Precambrian crystalline rock series in the Yadong area is previously called "the Nyalam Group". 摘要藏南亞東地區前寒武紀結晶岩系以往統稱為「聶拉木群」。
- They are controlled by shear fracture belt of epimetamorphic rock series of Precambrian Period. 主要賦存於前寒武紀淺變質岩系中,受剪切斷裂帶控制。
- The meta-intrusives of Wutai stage are Shawobulak gneissic rock suite basically in order, including TTG and adamellite rock series. 為一套基本有序的變侵入岩系列,包括TTG和二長花崗岩兩個岩系。
- The meta- intrusives of Wutai stage are Shawobulak gneissic rock suite basically in order,including TTG and adamellite rock series. 為一套基本有序的變侵入岩系列 ,包括 TTG和二長花崗岩兩個岩系。
- This kind of soil contains much alkali. 這種土壤含鹼豐富。