查询词典 rocks

The authors suggest that the environment in which subaqueous volcanoes erupt during the deposition of the source rocks is also very good for accumulation of high-quality source rocks.

通过对断陷盆地主力生油岩中普遍存在的基碱性火山岩的分析，认为水下火山喷溢环境是优质生油岩赖以形成的主导因素。

Widely accepted as they are, the classification of pyroclasts and the petrographic classification of pyroclastic rocks stipulated by the IUGS Subcommission on the Systematics of Igneous Rocks fail to consider the classification with Chinese characteristics, which was put forward in 1950s to 1960s and improved in 1980s to 1990s and has since been widely used in China.

虽然目前国际地科联火成岩分类命名委员会确定的火山碎屑物和火碎屑岩岩性分类已得广泛推广，但此分类尚有不足之处。

Most of the rocks might be originally fragments of oceanic rocks introduced during plate subduction.

这些岩石大部分可能为板块俯冲过程中带入的大洋岩石残片。

The correlation of hydrocarbon accumulation and major control factors between these two basins indicates that there exist premium source rocks and reservoirs in subsalt carbonate rocks of Cambrian in these basins, and regionally distributing gypsum-salt rock of Middle Cambrian is good cap rock.

通过油气成藏要素及其主控因素的对比研究发现，塔里木盆地和东西伯利亚盆地在寒武系盐下都发育了优质的烃源岩和储集层，而区域性分布的中寒武统膏盐岩是良好的盖层。

The Pb isotopic compositions of the ores are similar to those of the syenite, as shown in the 207Pb/206Pb-208Pb/206Pb diagram, the ores, syenite, and Archean metamorphic rocks are linearly correlated and the ores are more closely related to the syenite than Archean metamorphic rocks do.

矿石铅同位素组成与正长岩杂岩体相似，在207Pb/206Pb-208Pb/206Pb图解上，矿石、正长岩、矿石中的钾长石脉石及太古宇桑干群变质岩呈线性分布，矿石与正长岩在铅同位素组成上更接近，而与太古宙变质岩有明显的区别。

Volcanic rocks of Xishanbulake Formation and Shuiquan Formation are of alkali basalt series, those of Zhamoketi Formation are of alkali basalt series and tholeiite series, and those of Beiyixi Formation are obviously characterized by bimodal assemblage and mostly belong to alkali volcanic rocks.

其中，西山布拉克组和水泉组火山岩均碱性玄武岩系列；扎摩克提组火山岩分属碱性火山武岩系列和拉斑玄武岩系列；贝义西组火山岩具有明显的双峰式组合特徵，大部分属碱性火山岩。

The rocks from Sharp Island are of volcanic origin. One of the examples is the rhyolite formed by viscous lava spewed from the volcano vents can be found near the caldera edge. As the result of weathering, the rocks here shows an attractive appearence. The tombolo here is also worth a close inspection.

桥咀洲的岩石大多源於火山，其中包括流纹岩，由附近火山喷道喷出的稠熔岩形成，属破火山口边的产物；并因长期风化，表现出迷人效果，亦有连岛沙洲地貌。

The ultrabasic rocks form a complex of large tectonic slice s with intercalated slice s of Sebakwian sedimentary rocks.

超基性岩与塞巴奎沉积岩岩片相间构成一巨大的构造岩片的杂岩体。

Source material of the gold deposit has close connections with the ultrabasic rocks, albite porphyritic dikes, thick|layered dolomite and clastic sedimentary rocks.

金矿的物质来源与矿区的超基性岩体、钠长斑岩脉、厚层状白云岩及各类碎屑沉积岩有密切的关系。

The authors believe that the diversification of rock zonation and lithology of these high pressure rocks can be attributed to the metasomatism that took place between deep melt and ultrabasic rocks in the subduction zone, and thus propose a hypothesis of subduction melt metasomatism to explain jadeite formation.

笔者认为俯冲带中形成的深部熔体与超基性岩之间的交代变质是导致岩石分带和岩性多样化的根本原因，提出了俯冲带熔体交代成因说，认为俯冲带、深部流体和超基性岩体是形成翡翠及其过渡品种的3个必要条件，并因此指出在人工合成过程中引入流体相很可能是降低实验条件的苛刻程度、从而合成出真正具有商业意义的翡翠的途径。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。