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Petrology of the Coastal Dykes at Tugtilik, Southern East Greenland

Monograph

Series: Geoscience (Monographs on Greenland subseries) Volume: 3

By: John C Rucklidge (Author), Charles Kent Brooks (Author), Troels FD Nielsen (Author)

19 pages, illustrations

Museum Tusculanum Press, University of Copenhagen

Paperback | Jan 1980 | #212222 | ISBN: 8763511347
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £20.99 $26/€25 approx

About this book

Dolerite and lamprophyre dikes from Tugtilik in the southern part of the onshore exposure of the East Greenland coastal dike swarm are described. The dolerites, which are earlier, are similar to other tholeiites from the dike swarm and the plateau basalts and also to many Icelandic tholeiites. Transitional varieties have been identified from the Angmagssalik district. The lamprophyres have a nephelinitic composition and are rich in phenocrysts and xenocrysts. In one case, abundant low pressure inclusions occur. Rocks identical to these lamprophyres have not previously been described from Greenland but are well known, for instance, in the African Rift.


Contents

Introduction
Geological relationships
Petrology
Dolerites
Transitional types
Lamprophyres
Inclusions in lamprophyres
Petrochemistry
Summary
Acknowledgements
References


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