Mineralogy and geochemistry of the leucitite at Cosgrove, Victoria
作者:
W. D. Birch,
期刊:
Journal of the Geological Society of Australia
(Taylor Available online 1978)
卷期:
Volume 25,
issue 7-8
页码: 369-385
ISSN:0016-7614
年代: 1978
DOI:10.1080/00167617808729047
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Comparison of bulk chemistry confirms the comagmatic nature of the New South Wales leucitite belt and the olivine leucitite at Cosgrove, Victoria. This relationship was previously implied by general mineralogical, petrographical, and age similarities, as well as the meridional trend of the occurrences. Differences of a minor nature occur between the N.S.W. and Victorian rock types, the latter being less potassic and magnesian (poorer in leucite and olivine) and more calcic (richer in clinopyroxene). Trace‐element compositions for the Cosgrove leucitite are within the ranges recorded for the N.S.W. belt.
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