1) foliation intersection axes(FIAs)
斑状变晶
2) porphyroblastic
斑状变晶的
3) prophyroblast
斑晶变晶
4) aphanophyric
隐晶斑状
5) Porphyroblast
['pɔ:firəblɑ:st]
变斑晶
1.
Porphyroblast inclusion trails are very useful in metamorphic geology or petrology and structural geology, which include orogenic models and their PTt paths, the relationship and history between metamorphism/deformation, shear sense and folding, porphyroblast growth rate, strain rate and strain, deformation degree and metamorphic grade, etc.
变斑晶晶内包体径迹在变质地质学和构造地质学中具有广泛的用途。
2.
The syntectonic porphyroblasts of pyrite and siderite in the ductile shear zone developed in epimetamorphic clastic rocks in Dabeiwu area are the products and marks of ductile shear deformation during progressive metamorphism.
大背坞地区浅变质碎屑岩内的韧性剪切带中发育有同构造成因的菱铁矿变斑晶和黄铁矿变斑晶，它们是进变质剪切变形的产物和标志。
3.
Porphyroblast is important media of relationship between deformation and metamorphism, so it is significant that geneses of structure,such as inclusion trails,in porphyroblast have been discussed widely and rigorously,because it is related to many aspects,such as folding machanism, p T t path,orogenic process or history,shear sense,and matter transport.
变斑晶晶内包体径迹的成因研究是当代变质岩岩石学研究的一个重大方向。
6) porphyroblast
['pɔ:firəblɑ:st]
斑狀变晶
补充资料：铝合金的羽毛状晶
铝合金的羽毛状晶
feathey crystal of aluminium alloy
IUheJ旧deyumooZhuangJ旧g铝合金的羽毛状晶(feathey Crystal of alu-minium anoy)铝合金铸锭中柱状晶的变种，形状类似羽毛的晶粒。是铸锭缺陷的一种。形状近似直线状花边的羽毛状晶亦称为“花边状组织”。羽毛状晶成群出现，每群中羽毛状晶之间近似平行。羽毛状晶是双晶，以(111)晶面为双晶面。铝一镁系合金中的羽毛状晶如图所示。’ 产生羽毛状晶的工艺因素主要是:(1)熔体处于高温平稳状态，有较好的定向结晶条件。(2)在铸造温度下熔体停留时间过长，熔体过热和高度净化，减少结晶前沿形成晶核的数量。(3)合金中加入某些容易产生羽毛状晶的微量元素，如硼和错。 超硬铝合金、工业纯铝和高镁铝合金形成羽毛状晶的几率较大，而高强锻造铝合金2A70(LD7)、防锈铝合金 3A21(LF21)和含镁低于5%的铝镁系合金，基本上不形成羽毛状晶。 铸锭中存在羽毛状晶对其性能影响较大。在塑性加工过程中易在羽毛状晶的双晶面处产生裂纹。制品中残留的未完全破碎的羽毛状晶区会扩大使用性能的各向异性。蘸: 铝一镁系合金铸锭中的羽毛状晶偏光只100 (格长清)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条