The contention of Flinn and Moffat (1985) that brecciated serpentinites in the Dalradian of Scotland are komatiites, should not remain undisputed. Their evidence is based on textures preserved in serpentinites which they contend resemble spinifex textures (Nesbitt 1971) found in Archaean ultramafic
The petrogenesis of the Lac Guyer komatiites and basalts and the nature of the komatiite-komatiitic basalt compositional gap
β Scribed by Karen Stamatelopoulou-Seymour; Don Francis; John Ludden
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 812 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0010-7999
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Chemical and isotopic compositions of Jurassic tholeiites of the Kirkpatrick Basalt Group from Solo Nunatak, northern Victoria Land, indicate that these rocks are contaminated with crustal material. The basalts are fine grained and contain phenocrysts of augite, pigeonite, hypersthene and plagioclas
Iron enrichment and elinopyroxene composition are considered to be good indicators of the magmatic parentage of volcanic series produced by fraetionation of basaltic magma. Tholeiitic series are in fact believed to be constantly more iron enriched than alkalic series and systematic differences in th
Major and trace element compositions are presented for basalts from the area between Kangerdlugssuaq and Scoresby Sund, East Greenland. In this area basalts are estimated to cover at least 54,000 km 2 at the present day. The bulk of these lavas have a very uniform composition and are tholeiites simi