Scapolitization in the Cloncurry district of north-western Queensland
Scapolitization in the Cloncurry district of north-western Queensland
复制标题
昆士兰州西北部克朗克里区的城市化
DOI：
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复制
发表时间：
1953
期刊：
影响因子：
--
通讯作者：
G. Baker
中科院分区：
文献类型：
--
作者：
A. B. Edwards;G. Baker
Abstract Three extensive areas of intense scapolitization have been found in the Cloncurry district of north-western Queensland, centring on the Dugald River lead prospects, the old Duchess copper mine, and the Trekelano copper mine. At Dugald River the scapolite rocks occur over an area of more than 50 square miles, while at Duchess they outcrop over more than 30 square miles. They lie within the narrow, 150-mile long, north-south belt of Argylla gneisses and schists mapped by Honman, and may be co-extensive throughout this belt. The characteristic rocks are banded scapolite-pyroxene granulites, in which the banding corresponds to the bedding of original fine-grained sediments, thought to have been calcareous shales. The granulites consist essentially of a dipyre, Ma75Me25, and a bright green ferriferous augite, with abundant accessory pink sphene. Some of the granulites contain albite in place of the scapolite, and hornblende or biotite in place of the pyroxene. In places the scapolite granulites are in...
