siliceous rocks 中文意思是什麼
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The thin - beded siliceous - rocks include chert and depositional quartz with textures of oolite and pebble
矽質巖包括燧石和沈積石英巖，呈薄層狀產出，沈積石英巖具鮞狀、礫狀結構。 -
The coqen basin in xizang lies between the bangong - nujiang suture zone and yarlung zangbo suture zone, and once extended northwards and southwards, respectively centred by the qiekan - goicang - asog rift zone as the center of deposition and subsidence during the middle jurassic to the early creatceous. ( 1 ) during the middle - late jurassic, the rift zone was occupied by deep - water turbidites, radiolarian siliceous rocks, shallow - water carbonate rocks, clastic rocks and basic - ultrabasic rocks, while both sides of it by littoral and shallow marine elastic rocks and carbonate rocks
摘要位於班公湖怒江縫合帶與雅魯藏布江縫合帶之間的措勤盆地，在中侏羅世早白堊世期間具有以且坎古昌阿索裂谷帶為沉積、沉降中心向南北兩側展開的古地理格局：中晚侏羅世時期，裂谷帶內由深水濁積巖、放射蟲硅質巖和淺水碳酸鹽巖、碎屑巖巖片及基性超基性巖等組成；裂谷帶兩側由濱淺海相碎屑巖和碳酸鹽巖組成。 -
The immediate host siliceous rocks of typical deposits ( jinya, gaolong ) are of hydrothermal sedimentary origin. gold ore bodies are layer - like and generally concordant with their host rocks. abundant relict synsedimentary fabrics are preserved in the ores
典型礦床（金牙、高龍）中的含礦硅質巖屬熱水沉積巖，礦體形態主要為與地層整合的層狀和似層狀，礦石具有大量同生沉積的標型組構。 -
The genesis of siliceous rocks in the changkeng gold - silver deposit, guangdong province
廣東省長坑金銀礦床硅質巖石成因分析 -
The main kinds of rocks include carbonate rocks, tuffite, siliceous rocks and quartz sand - stone
主要巖石類型包括碳酸鹽巖、沈積凝灰巖、矽質巖和石英砂巖。 -
The wall rock of ore - bodies is the siliceous dolostone and alkaline volcanic rock ( trachy andesite ) in the yinachang deposit. based on the shape of ore - bodies and the structure and texture of ores, the deposit was identificed as synsedimentary with wall rocks. there occurred ree minerals, such as bastnaesite, monazite and allanite, associated with apatite and fluorite with ree contents to a certain extent
礦體產出形態和礦石的結構構造等均顯示礦體與賦礦地層同沉積特徵；出現獨立礦物氟碳鈰礦、獨居石及褐簾石，磷灰石、螢石、菱鐵礦等礦物中也含有一定量的稀土，沿礦體走向和垂向稀土元素變化不大。
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