成因的

The upper layer, with homogeneous composition, is mainly composed of intact phosphatic foraminifer fossils and nannofossils as well as abiotic carbonate fluorapatites, representing the biologic and autogenic origin. However, the lower layer, with visible metasomatic texture and relatively high Si, Al, K and Fe, is notably different from the upper one, and seems to have been formed mainly by replacement of carbonates.

上层磷酸盐由大量形态结构清楚的磷酸质有孔虫和超微化石以及非生物碳氟磷灰石组成，成分均一，杂质少，表现出生物成因和原生白沉积特点；下层磷酸盐变化复杂，具有特征的交代结构，混杂较高的Si、Al、K、Fe成分，显示以磷酸盐交代碳酸盐成因为主。

For the unique geographical position of this area, the origin of slide is the brush of the water at the slope foot, the landslide, mudflow and flood was introduced by the hard rain.

根据迪那河地区独特的地理位置，对各种地质灾害的分布特点、类型、成因等进行了分析，通过野外实地勘察，得出该地区崩塌成因以坡脚水流侵蚀为主，滑坡、泥石流和洪水以暴雨诱发为土的结论。

The geological distribution and genesis of most natural fullerenes have relations with meteoritic impact, wildfire, lightning strike, et al. and the causes of formation of some natural fullerenes are uncertain.

多数天然富勒烯的地质分布、成因机制与陨石撞击、野火、闪电等有关，但部分天然富勒烯的成因尚不清楚。

Veined,stockwork and alteration-sheathed gold ores have been found in the area,belonging to four genetic types:the volcanic hydrothermal ores related to early—middle Carboniferous volcanism; subvolcanic hydrothermal ores related to intermediate—acidic porphyry intrusions; hydrothermal ores to the granitic intrusion and dynamo- hydrothermal ores related to regional dynamic metamorphism along the faults.

矿石类型有含金石英大脉型、石英网脉型和蚀变岩型。矿床成因类型有4种：一为火山热液型，其成因与区内早—中石炭世火山作用有关；二为潜火山热液型，与中酸性斑岩体侵位有关；三为岩浆热液型，与花岗质岩浆的侵位有关；四为动力变质热液型，沿断裂带分布于蚀变玄武岩中，系区域动力变质作用的产物。

Veined,stockwork and alteration-sheathed gold ores have been found in the area, belonging to four genetic types: the volcanic hydrothermal ores related to early-middle Carboniferous volcanism; subvolcanic hydrothermal ores related to intermediate-acidic porphyry intrusions; hydrothermal ores to the granitic intrusion and dynamo- hydrothermal ores related to regional dynamic metamorphism along the faults .

矿床成因类型有4种：一为火山热液型，其成因与区内早-中石炭世火山作用有关；二为潜火山热液型，与中酸性斑岩体侵位有关；三为岩浆热液型，与花岗质岩浆的侵位有关；四为动力变质热液型，沿断裂带分布于蚀变玄武岩中，系区域动力变质作用的产物。

Mineralogic characteristics of quartz of this gold deposit, such as REE, fluid inclusion, chemical composition, unit cell parameter, infrared absorption spectrum and thermoluminescent effect, were studied systematically in this article,and some valuable information of genetic and prospecting criteria are concluded.

本文较系统地研究了该金矿床石英的稀土元素、包裹体测温、化学成分、晶胞参数、红外吸收光谱及热发光效应等矿物学特征，总结出了有重要参考价值的成因信息和找矿标志。认为康古尔金矿床主要系中深成中低温热液成因，成矿物质具深源性，直接来自围岩火山岩。

Objective: To look back the domestic and international study about the reason of homosexuality may be make readers understanding it better and re - recognize queers again.

通过对国内外有关同性恋成因研究的回顾，为同性恋成因勾勒出一个大概的面貌。

Chemical compositions and genetic characteristics of plagioclases, biotites and amphiboles of typical Yanshanian intrusions in the core of Dabie Orogenic Belt are presented.

分析了大别造山带核部典型燕山期侵入体中的斜长石、黑云母和角门石的化学成分和成因特点，并从矿物平衡角度讨论了典型侵入体岩石成因。

In the beginning of this dissertation, comprehensive summary, classification and discussion are made on the existing theories about the formation mechanism of rail corrugations.

对现有波磨成因理论进行了全面的总结和分类，揭示了成因理论的不足和发展前景。

By studying the wear work between wheel and rail, it is found that the corrugations are caused by the slip-stick vibrations of the wheel-sets under certain conditions.

对钢轨波磨成因理论和我国重载线路钢轨波磨的特征进行了总结，发展了一个适用于波磨成因分析的轮轨空间耦合振动模型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。