自形

Major conclutions from this study can be summarized as following:1. On mineralogy, rutiles, apatites, epidotes and vein minerals from UHPM rocks were firstly and systematically studied, by detailed petrography and mineral-chemistry investigation, some mineral or mineral assemblage with special composions or texture were firstly found in UHPM rocks from Sulu-Dabie, for example, corrudum, magnesite, high-Ti biotite and garnet were found as inclusions in rutiles from eclogites, Nb-Fe rutile and zoned Si-Y apatite were found in gneiss, epidote / allanite with euhedral zones like magmatic genesis were found in elogites and gneiss, a lot of minerals with high REE, HFSE, LILE and volatiles were found in veins of gneiss.

在矿物学方面，首次较为系统地研究了超高压变质岩中的金红石、磷灰石、绿帘石等副矿物，并通过详细的岩相学和矿物化学研究，首次在苏鲁-大别超高压变质岩中发现了一些具有特殊成分/结构的矿物或矿物组合，如在榴辉岩金红石中发现了刚玉、菱镁矿、高钛黑云母和石榴石矿物包裹体，在片麻岩中发现了Nb-Fe金红石和具有自形环带结构的高Si-Y磷灰石，在榴辉岩和片麻岩中发现了具有类似岩浆成因的自形生长环带结构的绿帘石/褐帘石，在片麻岩的脉体中发现了大量富含稀土元素REE、高场强元素HFSE(Nb、Ta、Zr、Ti)、大离子亲石元素LILE(K、Th、U、Sr、Ba)，以及挥发性组份(CO_2、F、P、S)的特殊矿物，丰富并提升了超高压变质岩的矿物学研究。2。

The automorphic, hypidiomorphic and xenomorphic granular textures are the main ore textures and vein and disseminated structures are the main ore structure.

矿石多具白形、半自形、他形粒状结构，以脉状、浸染状构造为主。

The automorphic, hypidiomorphic and xenomorphic granular textures are the main ore textures, and vein and disseminated structures are the main ore structure.

矿石多具自形、半自形、他形粒状结构，以脉状、浸染状构造为主。

The results show that the fine-grained hypidiomorphic pyrite, with a crystal form of pentagonal dodecahedron, contains more Au than others. Since the areas yield pyrite with relatively lower contents of main components S and Fe, while a greater gross content of trace elements, such as Cu, Pb, Zn, Au, Ag, are closely associated with gold deposits, the authors propose that a middle-scale gold deposit might be found in Zhaojiapuzi area; and there is a remote possibility to find a large gold deposit in Shengjingao area, wih a prospect of finding a concomitant gold deposit.gold deposits;mineralogical.

结果表明以五角十二面体晶形为特征的半自形细粒状黄铁矿含金性较高；黄铁矿主成份S、Fe含量相对低，而黄铁矿中Cu、Pb、Zn、Au、Ag等微量元素总量相对高的黄铁矿分布区城与金矿化关系密切；提出赵家堡子地区具备找到一处中型以上金矿的前景，而在生金皋地区找到大型金矿床的可能性很小，但有望找到伴生金矿床。

Deep buried dolostones in study areas mainly consist of fine or medium dolomites, which crystals are euhedral or subhedral.

认为研究区深埋藏白云岩主要由细晶或中晶白云石组成，白云石呈自形或半自形晶。

Ore structures appeared euhedral and subhedral granular, polygonal cleavage, anhdral granular and sheet texture.

矿石构造主要出现致密块状矿石，条带状磁铁矿和浸染状磁铁矿；矿石结构包括自形、半自形粒状结构，多边形解理结构、他形粒状结构和片状结构(1∶20万富蕴幅，1978)。

Little quantity of sulphur occur in forms of enclave and anhedraal,subhedral,euhedral crystal. The crystal size ranges from0.01mm to1. 00mm and little of size around 1μm.

少量呈包体形式产出，它形～半自形～自形晶，粒径在0.01mm～1mm间，极少量的在1μm这些硫化物中的硫，含量略低于其相应矿物的硫的含量。

There are two kinds of spinels in a granulite terrain of Yushujgou, South Tianshan Mountain. One occurs in the intermediate and basic granulite units and is characterized by enriched Al and poor Cr, belonging to Al_spinel. In thin sections it shows dark green color and subhedral to anhedral form, and coexists with other metamorphic minerals, suggesting a neogenic metamorphic mineral of granulite facies. The other occurs in the adjacent ultramafic rock unit, belonging to Cr_spinel. In thin sections, it is dark brown in color and is scattered among olivine, clinopyroxene and orthopyroxene as irregular grains, indicating a stable residual mineral in the process of granulite facies metamorphism.

新疆榆树沟麻粒岩地体中发育两类尖晶石：一类见于中、基性麻粒岩体中，其化学成分富 Al贫 Cr ，属铝尖晶石，镜下为深绿色，呈半自形至他形粒状，与其它变质矿物共生，表现为麻粒岩相的新生变质矿物；另一类发育在空间上与麻粒岩体紧密相邻的超镁铁质岩体中，为铬尖晶石，镜下为深褐红色，呈不规则粒状分布于橄榄石、斜方辉石和单斜辉石之间，为麻粒岩相变质过程中稳定的残余矿物。

Therefore, the stone consist of idiomorphism and half idiomorphism mineral, the erode speed is slower.

因此，由自形、半自形的矿物组成的石材，腐蚀速度一般较慢；他形成矿物组成的石材，腐蚀速度较快；颗粒的大小对于腐蚀速度的影响主要表现为粒度越粗，颗粒的总表面积越小。

The ore textures consist of subhedral-euhedral granular, flame, stockwork, ringy, and oriented knotted ones.

矿石的结构：半自形-它形晶粒状结构、焰状、网状、边环状及定向斑点状结构。

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。