| 1. | In some high-grade ores, phenocrysts adhere intimately to the pseudomorphs . 在有些高级矿石内,斑晶紧连着假晶。 |
| 2. | Shear zones ; porphyroclast ; maxwell body ; numerical modeling ; taihangshan mountains 剪切带斑晶maxwell体有限元数值模拟太行山 |
| 3. | Shear zones ; porphyroblast ; large plastic deformation ; numerical modeling ; taihang mountains 剪切带斑晶塑性大变形计算机模拟太行山 |
| 4. | Kinematic analysis of porphyroclasts in shear zones and viscoelastic simulation using finite element method 剪切带中斑晶旋转的粘弹性有限元数值模拟 |
| 5. | Analysis for kinetics and deformation of porphyroblasts within ductile shear zones and numerical modeling in large plastic deformation 剪切带中斑晶的运动学和变形分析及塑性大变形计算机模拟 |
| 6. | Numerical modeling for porphroblast s rotation and deformation of augen fabrics in ductile shear zones is done by a large plastic deformation programm based on detailed investigation to three ductile shear zones , taihangshan mountains 在对太行山阜平地区三条剪切带作了详细观察和测量的基础上,就斑晶旋转和眼球构造进行了塑性大变形的计算机模拟。 |
| 7. | Some results acquired by computer calculation show that the rigid garnet pophyroblasts can rotate as their matrix flow , and the rotational degree depends on the shear force , ratio of poephroblasts to matrix and the locations of porphyroblasts in the model 计算结果表明:刚性的石榴石斑晶会随着基质的流动而产生旋转运动,旋转量的大小取决于剪切力的大小斑晶的密集度以及斑晶在剪切带中的位置。 |
| 8. | Through the study of the example of shaxi porphyry body in anhui province , the authors first figured out the storage time of plagioclase phenocrysts , then calculated the nucleation rate and growth rate of the crystals and , on such a basis , established the thermal model for cooling of the hypabyssal magmatic system 本文试图通过对安徽沙溪斑岩体进行实例研究,先求出斜长石斑晶的存储时间,再算得晶体成核速率和生长速率,进而建立起浅成岩浆体系冷却的热模型。 |
| 9. | Numerical viscoelastic modeling for porphyroclast rotation in ductile shear zones is done by a viscoelastic finite element program based on detailed investigation to three ductile shear zones , the taihangshan mountains , north china . in this model porphyroclast garnet is assumed as isotropic elastic material with small elastic deformation , while the matrix quartz , feldspar as viscous fluid maxwell material which has increasing deformation with time . the viscosity of matrix is supposed to be 10 采用粘弹性力学分析程序对太行山阜平地区剪切带中斑晶旋转问题进行了有限元数值模拟。在计算模型中假定:石榴石斑晶为弹性材料,在应力作用下只产生很小的弹性变形石英长石质的基质部分为粘弹性材料,它具有随时间变形不断增大的特性。 |
| 10. | Plastic strain first starts from ambient of the porphyroblast , and then develops to rims of porphyroblast and gradually transfers to the centers of porphyroblasts . the brittle remains in the central parts of porphyroblasts come to be decreased through the plastic deformation development , which is accordance with the banding of intensity in many mylonitization zones on wild occurrences and observation in the fabrics of mylonitization rocks under microscope 长石眼球构造的形成主要是由长石与石英的韧性差决定的,塑性变形首先从斑晶的周围部分开始,逐渐向斑晶发展,脆性残斑核不断减小,这与剪切带内糜棱岩化强度分带相一致。 |