An Unusual Pyroxene-rich Xenolith in the Diorite of the Glenelg-Ratagain Igneous Complex

1951 ◽  
Vol 88 (4) ◽  
pp. 284-295 ◽  
Author(s):  
G. D. Nicholls
Keyword(s):  
Iron Ore ◽  
Igneous Complex ◽  
Potash Felspar ◽  
Igneous Activity

AbstractA xenolith composed essentially of green pyroxene, microperthitic potash felspar, sphene, apatite, and iron ore, has been discovered in the diorite of the Glenelg-Ratagain igneous complex. it is believed to be an impregnated skarn rock associated with igneous activity earlier than the intrusion of the diorite. Introduction of P, Ti, and Na is considered to be important in the formation of the skarn.

The composition and paragenesis of the biotites of the Carsphairn igneous complex

1937 ◽  
Vol 24 (156) ◽  
pp. 495-502 ◽  
Author(s):  
W. A. Deer
Keyword(s):  
High Temperature ◽  
Igneous Complex ◽  
Potash Felspar

The Cairnsmore of Carsphalrn igneous complex (1) is the smallest of the larger Caledonian intrusions of the Southern Uplands of Scotland. The intrusion is composite, consisting of a central granite, followed by successive zones of granite-tonalite hybrid, tonalite, and basic hybrids. The complex began with the intrusion of a gabbro. When this was crystallized, but still at a high temperature, the tonalite was emplaced. This intrusion of tonalite produced a series of hornblende-hybrids. The hybridization of the original gabbro attendant on the injection of the tonalite is the result of a 'partial magma' of potash-felspar, quartz, and volatiles. The final intrusion of granite took place while the tonalite was still incompletely crystallized, and resulted in the formation of a zone of acid hybrid rocks. The three biotites that have been analysed occur in the granite, tonalite, and hornblende-hybrid respectively.

Humid iron-ore mass dehydration in the field of combined physical forces

2017 ◽  
pp. 105-114
Author(s):  
V.P. Nadutyi ◽  
◽  
V.V. Chelyshkina ◽  
S.V. Kostyria ◽  
◽  
...  
Keyword(s):  
Iron Ore ◽  
Physical Forces

Radioecology deposits of ferruginous quartzite of Kremenchug iron ore basin

2016 ◽  
Vol 17 (1(17)) ◽  
pp. 3-8
Author(s):  
A.V. Plotnikov ◽  
◽  
V.V. Efimenko ◽  
O.V. Yaremenko ◽  
◽  
...  
Keyword(s):  
Iron Ore ◽  
Ferruginous Quartzite
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