Feldspars and the Thermal History of Igneous Rocks
Feldspars and the Thermal History of Igneous Rocks
复制标题
长石和火成岩的热历史
DOI：
--
复制
发表时间：
1984
期刊：
影响因子：
--
通讯作者：
W. Brown
中科院分区：
文献类型：
--
作者：
I. Parsons;W. Brown
火成岩中碱性长石的发育可分为三个阶段：岩浆阶段，涉及熔体中的晶体生长;亚固相或岩浆后阶段，涉及连贯的出溶和规则的、应变控制的隐晶或微条纹长石的发育;以及深成或热液阶段，涉及长石-流体相互作用，产生不规则的粗微条纹长石。结晶温度、冷却速率、变形量、体相组成和后期相互作用的相互作用导致了碱长石结构的变化。
Development of alkali feldspars in igneous rocks can be considered in three stages: magmatic, involving crystal growth from the melt; subsolidus or postmagmatic, involving coherent exsolution and development of regular, strain-controlled crypto or microperthites; and deuteric or hydrothermal involving feldspar-fluid interactions which give rise to irregular coarse microperthites. The interplay of crystallization temperature, cooling rate, deformation, bulk composition and deuteric interactions leads to the variety in alkali feldspar textures.