摘要
在两种相邻矿物边界上生长出第三种矿物的现象称为界生。界生现象在长白山区赤柏松镍矿田诸含镍基性辉长苏长岩岩体中广泛发育。通过研究,作者提出界生现象的多种成因观点,并在矿物学、矿物化学与热力学研究的基础上把界生现象区分为原生与次生两大类。研究不同成因的界生现象可提供大量地质成因信息,用手成岩成矿作用的研究。
Synantectic phenomenon refers to the growth of a new mineral along the boundary of two neighboring minerals through their reaction.Synantectic reaction is well developed in a Ni-bearing basic rock body in the Changbai mountain area.The author holds synantectic minerals to be of multiple geneses. Based upon the study of mineralogy, mineralogical chemistry and thermodynamics, he has classified the synantectic zone into two types—primary and secondary. The primary synantectic mineral was formed as a result of magmatic reaction and is called corona structure whereas the secondary ones were formed through regional metamorphic process of thermal metamorphism, hydrothermal metasomatism and contamination, respectively named contact corona texture, metasomatic kelyphitic structure and contamination reaction rim texture.The research of synantectic minerals will yield a lot of information for the study of diagenesis and metallogenesis.
出处
《岩石矿物学杂志》
CAS
CSCD
1991年第4期362-369,共8页
Acta Petrologica et Mineralogica
关键词
界生
矿物
成因
含镍
基性岩
Synantectic
synantectic minerals
genesis information