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- 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。
- 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。
- 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。
- 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
- 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
- intermediate acidity volcanic rock in Upper Carboniferous 晚石炭世中酸性火山岩
- Acid volcanic rocks 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 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。
- Volcanic rocks have high susceptibilities under normal conditions. 火山岩在正常情况下有强的磁化率。
- The principal period of volcanic activity produced large volumes of mainly acid and basic volcanic rocks accompanied by volcaniclastic sediments which contain isolated coal seams. 火山活动的主震时期产生了大量的主酸性以及基性火山岩,并伴随着火山碎屑沉积物,且其中包含着分离的煤层。
- Clays gave way to sulfates as the acid rain (of sorts) continued to alter the volcanic rocks and break down any carbonates that may have formed earlier. 当酸雨持续改变火山岩并且破坏所有早期形成的碳酸盐时,黏土转变成了硫酸盐。
- 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
- These deposits, which can be obviously divide d into basic and acid volcanic types, are present in the Carboniferous bi_model volcanic series and occur along two horizons, i. 新疆西昆仑奥依塔克_恰尔隆拗陷带内阿克塔什_萨落依成矿带发现多处火山岩型块状硫化物铜矿床。
- Sulfur fumes have streaked the craggy volcanic rocks with pale yellow. 硫磺气为肌里斑剥的火山岩染上淡淡的黄色。
- Resembling a volcanic rock that contains many amygdules. 杏仁岩的类似包含杏仁孔的火成岩的