The Gronnedal Ika Alkaline Complex South Greenland
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Author | : Henning Sorensen |
Publisher | : Museum Tusculanum Press |
Total Pages | : 74 |
Release | : 2006 |
Genre | : Science |
ISBN | : 9788763512718 |
Download Ilímaussaq Alkaline Complex, South Greenland Book in PDF, Epub and Kindle
The Ilimaussaq alkaline complex, South Greenland, the type locality of agpaitic nepheline syenites and of thirty minerals, among which arfvedsonite, eudialyte and sodalite, has been studied since 1806. The paper reviews the outcome of 200 years of geological investigations and presents an overview and a synthesis of the petrology of the complex. According to one model for the evolution of the complex, the nepheline syenites formed by consolidation of one magma batch in a closed system. The lujavrites were formed from the residual melts left after the formation of the roof series and the floor series and were sandwiched between these. A second model implies that the kakortokites and lujavrites formed from one or more separate magma pulses which intruded the already consolidated roof series rocks. This model is supported by new information on contact relations and especially on the petrology and geochemistry of a marginal pegmatitic fades that forms a rim around the kakortokite-lower aegirine lujavrite part of the complex. It consists of a massive-textured matrix intersected by pegmatites. The matrix was the first rock to form in the lowermost exposed part of the complex and gives information about the composition of the initial magma of the kakortokite-lujavrite sequence. It is concluded that the agpaitic rocks of the complex were formed from at least two successive magma injections, which formed respectively the roof series and the kakortokite-lujavrite sequence.
Author | : Charles Henry Emeleus |
Publisher | : |
Total Pages | : |
Release | : 1964 |
Genre | : |
ISBN | : |
Download The Grønnedal-Ika alkaline complex, South Greenland Book in PDF, Epub and Kindle
Author | : Henning Sørensen |
Publisher | : Museum Tusculanum Press |
Total Pages | : 76 |
Release | : 2006 |
Genre | : Science |
ISBN | : |
Download The Ilímaussaq Alkaline Complex, South Greenland Book in PDF, Epub and Kindle
An Overview of 200 years of Reseach and an outlook.
Author | : |
Publisher | : |
Total Pages | : 76 |
Release | : 1979 |
Genre | : Alkalic igneous rocks |
ISBN | : |
Download Meddelelser Om Grønland Book in PDF, Epub and Kindle
Invites papers that contribute significantly to studies in Greenland within any of the fields of geoscience ...
Author | : Jan Bondam |
Publisher | : |
Total Pages | : 28 |
Release | : 1992 |
Genre | : |
ISBN | : |
Download The Grønnedal-Ika Alkaline Complex in South Greenland Book in PDF, Epub and Kindle
Author | : A. Escher |
Publisher | : |
Total Pages | : 1020 |
Release | : 1964 |
Genre | : Dikes (Geology) |
ISBN | : |
Download The Grønnedal-Íka Alkaline Complex, South Greenland Book in PDF, Epub and Kindle
Author | : Bent Eske Koch |
Publisher | : |
Total Pages | : 75 |
Release | : 1962 |
Genre | : Dikes (Geology) |
ISBN | : |
Download The Grønnedal-Íka Alkaline Complex, South Greenland Book in PDF, Epub and Kindle
Author | : Charles Henry Emeleus |
Publisher | : |
Total Pages | : 75 |
Release | : 1964 |
Genre | : Geology |
ISBN | : |
Download The Grønnedal-Íka Alkaline Complex, South Greenland. The Structure and Geological History of the Complex, Etc. [With Maps and Illustrations.]. Book in PDF, Epub and Kindle
Author | : Charles Henry Emeleus |
Publisher | : |
Total Pages | : 75 |
Release | : 1964 |
Genre | : Dikes (Geology) |
ISBN | : |
Download The Grønnedal-Íka Alkaline Complex, South Greenland Book in PDF, Epub and Kindle
Author | : C. H. Emeleus |
Publisher | : |
Total Pages | : 75 |
Release | : 1964 |
Genre | : |
ISBN | : |
Download The Grønnedal-Íka alkaline complex, South Greenland Book in PDF, Epub and Kindle