Skaergaard intrusion

The best-studied example of a hydrothermal system associated with a gabbro is the Skaergaard intrusion (Taylor and Forester 1979 Norton and Taylor 1979). The latter authors carried out a computer simulation of the Skaergaard hydrothermal system and fonnd a good match between calculated and measured 8 0-values. They further demonstrated that most of the subsolidus hydrothermal exchange took place at very high temperatnres (400-800° C), which is compatible with the general... 

Norton D, Taylor HP (1979) Quantitative simulation of the hydrothermal systems of crystaUizing magmas on the basis of transport theory and oxygen isotope data an analysis of the Skaergaard intrusion. J Petrol 20 421 86... 

Taylor HP, Epstein S (1962) Relation between 0/ 0 ratios in coexisting minerals of igneous and metamorphic rocks, I Principles and experimental results. Geol Soc Am Bull 73 461 80 Taylor HP, Forester RW (1979) An oxygen and hydrogen isotope study of the Skaergaard intrusion and its country rocks a description of a 55 M.Y, old fossil hydrothermal system. J Petrol 20 355 19... 

Example 5.16. The following data show some XRD data on Fe-Mg distribution in orthopyroxene. The first two samples are from Skaergaard Intrusion (Ganguly and Domeneghetti,1996), and the last two rows are two repeated analyses on orthopyroxene in the meteorite Bondoc (Ganguly et al., 1994) ... 

Crystal field theory was first applied to a geochemical problem in 1959 when R. J. P. Williams interpreted the relative enrichments of transition metal ions during fractional crystallization of magma in the Skaergaard intrusion (see 8.5). Williams (1959) was able to explain why Cr and Ni were removed from the magma during early crystallization of chromite and olivine,... 

Wager, L. R. Mitchell, R. L. (1951) Distribution of trace elements during strong fractionation of basic magma - a further study of the Skaergaard intrusion. Geochim. Cosmochim. Acta, 1, 129-208. 

Cabell and Smales (IS) have described the application of neutron activation to the determination of rubidium and caesium in international standard rocks, lepidolites, samples from the Skaergaard Intrusion of East Greenland, and some stony meteorites. Smales and Salmon 9S) had previously determined the same two elements in sea water after a preliminary concentration on an ion exchange resin, and directly in other materials of geochemical interest. 

Bird DK, Rogers RD, Manning CE (1986) Mineralized fracture systems of the Skaergaard intrusion. Medd Gronland Geosci 16 1-68... 

Wager LR, Deer WA (1939) The petrology of the Skaergaard Intrusion, Kangerdlugssuaq East Greenland. Medd om Grbnland 105 1-352... 

Skaergaard intrusion Acid granophyre with pyrrhotite 16.86 15.48 38.29 Mamilton (1966)... 

Fig. 21.19. Typical values of lanthanide distribution coefficients for common, rock-forming minerals. Values for apatite inferred from analysis of Skaergaard intrusion (Paster et al., 1974) rest from phenocryst-matrix analyses (Schnetzler and Philpotts, 1970).

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