Reappraising the P-T evolution of the Rogaland-Vest Agder Sector, southwestern Norway

详细信息    查看全文

• 作者：Eleanore Blereau^a ; ^{eleanore.blereau@postgrad.curtin.edu.au} ; Tim E. Johnson^a ; Chris Clark^a ; Richard J.M. Taylor^a ; Peter D. Kinny^a ; Martin Hand^b
• 关键词：UHT ; Phase equilibria modelling ; Rogaland Igneous Complex ; THERMOCALC ; Sveconorwegian Orogen
• 刊名：Geoscience Frontiers
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：8
• 期：1
• 页码：1-14
• 全文大小：10019 K
• 卷排序：8

文摘

The Rogaland–Vest Agder Sector followed a polymetamorphic evolution. Regional metamorphism reached ∼850–950°C at 7–8 kbar followed by contact metamorphism (∼950°C at 3–6 kbar). Contact metamorphism affected rocks up to 10 km from the Rogaland Igneous Complex. Limited cooling is likely to have occurred between the regional and contact metamorphic event. A long-lived eastward subducting accretionary margin associated with tectonic switching is the suggested geodynamic setting.