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- calc alkali rock series 鈣堿巖系
- Keywords Alkali rock series;carbonatite;comagma;syngenesis;Bayan Obo; 堿性巖系;碳酸巖;同源巖漿;同生作用;白云鄂博;
- alkali rock series 堿性巖系
- 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. 礦床的形成與富堿性熱液和鈣堿性正長(cháng)花崗巖有關(guān),為中溫熱液型鈹礦床,形成于中生代燕山晚期。
- 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... 本文根據含礦主巖、堿交代巖、輝綠巖與瀝青鈾礦在形成時(shí)間上的對比,以及堿交代巖的地球化學(xué)特征研究,認為石土嶺鈾礦床的堿交代作用主要是地幔流體沿深層次伸展構造上升過(guò)程中產(chǎn)生的交代作用形成的。
- WHAT IS THE AVERAGE CONCENTRATION OF ALUMINIUM IN HIGH ALKALI ROCKS? 在強堿巖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. 也不屬于北祁連加里東構造帶南帶變質(zhì)火山巖系的一部分。
- 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(zhì))巖系，褶皺、斷裂構造發(fā)育，巖漿活動(dòng)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巖系中,蘊藏豐富的金屬和非金屬礦產(chǎn)。
- 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(zhì)巖系，大部分厘定為二疊系；
- Abundant copper material was derived from volcanic rock series (olivine tholeiite) in the rift. 豐富的銅質(zhì)來(lái)自巨厚的裂谷火山巖系（橄欖拉斑玄武巖）。
- Wangjiawaizi gold deposit occurrs in Lower Proterozoic opimetamorphic rock series. 王家崴子金礦床賦存于遼南古元古代淺變質(zhì)巖系中。
- Volcanic rock series include mainly the shoshonite series and subordinately the high-K calc-alkalic series. 火山巖系列主要為橄欖玄粗巖系,其次為高鉀鈣堿性巖系;
- calc alkali series 鈣堿系
- The metallogenic substance mainly comes from the Archeozoic metamorphic rock series in basement. 成礦物質(zhì)主要來(lái)源于基底太古界變質(zhì)巖系。
- The Precambrian crystalline rock series in the Yadong area is previously called "the Nyalam Group". 摘要藏南亞?wèn)|地區前寒武紀結晶巖系以往統稱(chēng)為“聶拉木群”。
- They are controlled by shear fracture belt of epimetamorphic rock series of Precambrian Period. 主要賦存于前寒武紀淺變質(zhì)巖系中,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巖系列，包括TTG和二長(cháng)花崗巖兩個(gè)巖系。
- 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巖系列 ,包括 TTG和二長(cháng)花崗巖兩個(gè)巖系。
- This kind of soil contains much alkali. 這種土壤含堿豐富。
