The Jurassic Dufek-Forrestal layered mafic intrusion, Antarctica: enrichment of platinum-group elements associated with late-stage Fe-Ti-ozide crystallisation
The Dufek-Forrestal layered mafic intrusion located in the Pensacola Mts., Antarctica (Fig. 1), is believed to be one of the largest bodies of its kind in the world, however, its size and intrusive form are difficult to established due to its undefined subglacial continuation. It is assumed that the ～ 3.5 km thick exposed sections constitute only a few per cent of the whole intrusion with a suggested total thickness of ～ 8-9 km (Ford & Himmelberg, 1991).From aeromagnetic and gravity anomalies, Behrendt et al. (1981) estimated an areal extent of > 50,000 km1 making this intrusion similar in size to the Bushveld Complex, South Africa. Reinterpretations of Ferris et al. (1998) considerably reduced the areal size of the Dufek-Forrestal intrusion to a minimum of ～ 6,600 km2, which is more similar in scale to the Stillwater Intrusion, North America.
Ricarda Hanemann Frank Melcher Lothar Viereck-Goette Samuel Mukasa
Institut fuer Geowissenschaften, Friedrich-Schiller-Universitaet Jena, Burgweg 11, 07749 Jena, Germa Bundesanstalt fuer Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany Department of Geological Sciences, University of Michigan, Ann Arbor, MI 48109, U.S.
国际会议
Xian International Ni-Cu(Pt) Deposit Symposium 2009(2009 西安·Ni-Cu(Pt)岩浆矿床国际学术研讨会)
西安
英文
169-173
2009-09-01（万方平台首次上网日期，不代表论文的发表时间）