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- Paper has systematic summarized the characters of the Tertiary coal bearing strata of N.E.China Region,genetic types of coal,lithotype of coal,metamorphism and its rules. 系统总结了东北地区第三纪含煤地层特征、煤的成因类型、煤岩特征、变质作用及其规律。
- The genetic type of the deposit belongs to the hy... 成因类型属高-中温热液交代-充填型矿床为主。
- genetic types of coal 煤成因类型
- Different genetic types of gold deposits have different fineness of gold. 不同成因类型金矿床金成色不同。
- Genetic types of PbZn deposits can be devided into sedimentation-diagenesis and thermal deposits. 摘要鄂西地区基本上可划分出沉积成岩型铅锌矿床和热液型铅锌矿床。
- There are three genetic types of iron ore deposits in Minyuearea,ie.Sedex,skarnized sedex and leached sedex types. 闽粤地区铁矿床存在三种成因类型：海底热液喷气沉积型、夕卡岩化海底热液喷气沉积型和风化淋滤海底热液喷气沉积型。
- According to their forming regime,two genetic types of pathway are identified,namely idio development and xeno development pathway. 有两类不同成因的超压释放通道,分别是自拓通道和它拓通道。
- According to the characteristics of the crude biomarkers in the Boxing subsag, four genetic types of crude can be identified. 根据博兴洼陷原油生物标志物的特征,可在该区辨认出四类不同成因的原油。
- The genetic types of queer stones include primary grape agate, Gobi stone formed through water flowing and weathering, Desert stone formed in saline lake in desert. 其成因类型有原生的葡萄玛瑙、次生改造的戈壁石和沙漠盐湖形成的沙漠石。
- Three types of coal were discovered in this are, namely the coking and anthracites and semi anthracites. 在这个地区找到了三种煤炭，即焦炭，无烟煤和半烟煤。
- The geochemical types of deposits reveal the difference of deposits belong to a genetic type in mineralization features and ore genetic physics and chemistry conditions. 矿床地球化学类型揭示了同一成因类型的矿床在矿化特征和成矿作用的物理化学条件上的差异。
- The combustion characteristic of macerals from four types of coal are investigated by means of thermogravimetry. 本文用热天平研究了四种煤的显微组分富集物的燃烧特性。
- At the same time auther considered that the genetic type of mineral deposit belonged to the mesothermal-epithermal filli... 同时认为矿床成因类型属中低温热液充填型，并指出围岩蚀变的找矿意义。
- The minerogenic background and geological characteristics of the copper deposit of the huangshaping ore field and genetic types of the ore deposit are simply analysed. 论述了黄沙坪矿田铜矿床地质特征，初步分析了成矿物质来源、成矿作用及矿床成因。
- The State shall ensure protective mining for the special or rare types of coal which are of important value to the national economy. 第二十八条对国民经济具有重要价值的特殊煤种或者稀缺煤种,国家实行保护性开采。
- Many genetic types of sandbodies of the facies of lake,delta and turbidite fan developed in low third member of the Shahejie Formation in Xianhe area of Dongying Depression. 东营凹陷现河地区沙三段下亚段发育湖泊相、三角洲相和浊积扇相等成因类型的砂体,地层埋藏深度变化大,成岩作用复杂。
- Article 28 The State shall ensure protective mining for the special or rare types of coal which are of important value to the national economy. 第二十八条对国民经济具有重要价值的特殊煤种或者稀缺煤种，国家实行保护性开采。
- On the basis of study on the petrographic characteristics of coal 2 -2 in Shenmu Coalfield,three types of peat swamp are recognized,i.e. 在研究神木煤田2-2煤层煤岩特征的基础上，划分了三种泥炭沼泽类型，即开阔水体草本沼泽、陆地森林沼泽和潮湿森林沼泽。
- Coral is formed by certain types of polyp. 珊瑚是由某些水螅体构成的。
