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- There is a large area of Masozoic acidic volcanic rock in southeastern China,which is an important area of volcanic uranium deposits. 中国东南部分布着大面积的中生代中酸性火山岩,是我国重要的火山岩型铀矿产区。
- With the increase of SiO2,from the basic volcanic rock to the acid volcanic rock,the fractional degree of HREE and LREE becomes more and more high. 从基性火山岩到酸性火山岩,随着SiO2的增加,轻重稀土分馏程度越来越高。
- Moreover, there are metallogenetic specializations of thick bedded basic lava hosted iron deposits and acid volcanic rock ... 矿床中伴有不同规模的金银矿化。
- ore-bearing acidic volcanic rocks 含矿酸性火山岩
- The volcanic rocks in Fenghuadian area are composed mainly of calc-alkaline acidic volcanic rocks, containing a small amount of alkaline intermediate or intermediate-acidic volcanics. 风化店火山岩主要为钙碱性酸性火山岩,少量碱中性和碱中酸性火山岩。
- The Nuilukeng lead-zinc deposit,located at the metallogenic belt of Mesozoic volcanic rocks in Eastern Fujian,was found in the Late Jurassic intermediate-acidic and acidic volcanics. 闽清牛路坑铅锌矿床地处闽东中生代火山岩成矿带上[1],产于晚侏罗世中酸性-酸性火山岩中,成矿与断裂构造及火山活动密切相关。
- intermediate acidity volcanic rock in Upper Carboniferous 晚石炭世中酸性火山岩
- Basalt is the commonest volcanic rock. 玄武岩是最普通的火山岩。
- A volcanic rock containing many amygdules. 杏仁岩有很多杏仁状小气孔的火成岩
- The Columnar Joint Landscape of Mesozoic Acidic Volcanic Rocks in China 我国酸性火山岩中的柱状节理构造景观
- The hotel is a cave on a volcanic rock in fact. 洞穴酒店其实就是一个火山岩上的洞穴。
- acidic volcanic rock 酸性火山岩
- A light-colored volcanic rock composed largely of feldspars. 响石,响岩大部分由长岩组成的淡色的火山岩
- Resembling a volcanic rock that contains many amygdules. 杏仁岩的类似包含杏仁孔的火成岩的
- GEOCHEMICAL CHARACTERISTICS AND ORIGIN OF CENOZOIC ACID VOLCANIC ROCKS IN THE TIANSHUI AREA, GANSU PROVINCE 甘肃天水地区新生代火山岩地球化学特征及其成因
- Volcanic rock can become favorable oil-gas reservoirs. 火山岩可以成为良好的油气储层。
- A gray, fine - grained volcanic rock, chiefly plagioclase and feldspar. 安山岩一种灰色的,纹理细密的火山岩,主要是斜长石和似长石
- He misjudged and thought that the volcanic rock was just ordinary rock. 他看走眼了,把火山岩当成了礁石。
- It shows that acidic volcanic lava has a specific characteristic of the primary structure in the specific paleogeographic environment. 它标志着酸性火山熔岩在特定的古地理环境下所形成的原生构造的特殊性。
- A gray,fine - grained volcanic rock,chiefly plagioclase and feldspar. 安山岩一种灰色的,纹理细密的火山岩,主要是斜长石和似长石