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- acid volcanic glass 酸性火山玻璃岩
- A usually black or banded, hard volcanic glass that displays shiny, curved surfaces when fractured and is formed by rapid cooling of lava. 黑曜岩火山玻璃，一般为黑色，带状，摔碎时色泽光亮，表面变曲，由火山熔岩迅速凝而成
- 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。
- Perlite, obsidian and pitchstone are volcanic glass having the same compositions commonly with rhyolite as well as andesite and basalt. 珍珠岩、黑耀岩和松脂岩等玻璃质熔岩以酸性为主，中基性者也常见。
- 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。
- These behaviours of Cl can be applied to explain the high incompatibility of Cl in low fractional crystallized volcanic glass （e. g. 在更高的压力下，水无法达到饱和，氯始终表现为高度不相容的特点。
- 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。
- Any of various volcanic glasses distinguished by their dull pitchlike luster. 松脂石某种火山玻璃，以其暗似沥青的光泽而著名
- Placer Abnormal of Volcanic lithoclast at Longjingjie in Kaili of Guizhou locates in regional Shidongkou deep and major fault nearby, abnormal materials that are obsidian lithoclast and volcanic glass. 贵州凯里龙井街火山岩屑重砂异常位于区域性施洞口深大断裂近旁，异常物质为黑曜岩屑及火山玻璃。
- Results have shown that the TONSTEINS are all synsedimentary acid volcanic ash,which were turned to relatively pure kaolinitic mudstone through hydrolysis and diagenesis in peat moor environment. 结果表明 ,它们都是同沉积的酸性火山灰 ,在泥炭沼泽环境下 ,经过水解和后期成岩作用 ,转变成质地较纯的高岭石粘土岩。
- Piece of black, volcanic glass. 一块黑色的火山玻璃。
- Its existing shows that neighborhood of Shidongkou fault zone once arises acid volcanic eruption in neoid period and provides new important information with basic geological study of Guizhou. 它的存在，显示了施洞口断裂带附近，挽近地质时期曾有酸性火山喷发活动，为贵州基础地质研究提供了新的重要信息。
- 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。
- 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。
- volcanic rock includes the volcanic glass obsidian. 火山岩包括黑曜岩火山玻璃。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- ore-bearing acidic volcanic rocks 含矿酸性火山岩
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
