Dear Colleagues, This is to draw your attention to a post-congress field trip of the 32nd International Geological Congress in August 2004. I am leading a 6-day field trip to the blueschists, eclogites and tectonics of northwest Turkey. The field trip will be a modified version of the successful 1998 Metamorphic Studies Group field trip to the same region. The highlights include regional jadeite-chloritoid-lawsonite-glaucophane blueschists, aragonitized limestones, purple jades with K-feldspar and jadeite, Triassic eclogites, Oligo-Miocene core complex with eclogites on the hangingwall, sutures and melanges. More details are in the second circular of the IGC, which can be downloaded at www.32igc.org Prof. Aral Okay Avrasya Yerbilimleri Enstitusu Istanbul Teknik Universitesi Ayazaga 80626 Istanbul Turkey tel. (90) 212 285 62 08 fax (90) 212 285 62 10 email [log in to unmask]