Apatite and Trace Elements in the Skaergaard Intrusion

所提出的工作旨在了解高温过程，据推测，高温过程影响了skaerggaard侵入体固化过程中形成的堆积岩石的矿物学和体积组成。它将特别关注导致磷灰石形成的条件，即这种矿物是由被捕获的间隙硅酸盐液体结晶形成的，还是由于周围围岩中磷和卤素（u, f）的引入而形成的。本研究的结果将为基性侵入体的演化提供关键的约束条件。

The proposed work is aimed at understanding high temperature processes that are inferred to have affected the mineralogical and bulk compositions of cumulate rocks formed as the Skaergaard intrusion solidified. In particular it will focus on the conditions leading toe formation of the phosphate mineral apatite -- i.e. did this mineral form by crystallization of trapped interstitial silicate liquids or was it formed in response to introduction of phosphorus and halogens (u, f) from the surrounding wall rocks. The results of this study should provide critical constraints on how mafic intrusions evolve compositionally.