MAGMATIC MAFIC ENCLAVES IN GRANITOIDS OF NORTHERN SIERRA-DE-PAIMAN, ARGENTINA

被引：1
|
作者：
LORENC, MW
机构：
[1] Polish Academy of Sciences, Institute of Geological Sciences, Wrocław, 50-449
来源：
GEOLOGICAL JOURNAL | 1990年 / 25卷 / 3-4期
关键词：
MAGMATIC MAFIC ENCLAVES; MINGLING-MIXING PROCESSES; ACID-BASIC MAGMA INTERACTIONS; PETROLOGY; PLUTONIC EVOLUTION;
D O I：
10.1002/gj.3350250322
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Field relationships of three types of granitoids with basic rocks, with different mineralogy and structure are described. Zones of mixed-type character exist between the several types of granitoids as well as between the granitoids and basic rocks. The distribution of magmatic mafic enclaves (MME) in the granitoids varies widely but the largest concentrations occur in the mixed zones between the granites and basic bodies. The origin of such enclaves is closely related to processes of hybridization and mingling of acid and basic magmas. One of the possible variants of such interaction is the fragmentation and partial hybridization of synplutonic basic dykes.
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页码：405 / 412
页数：8
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