Layered Intrusions: key to fundamental planetary processes

• Published in: Geology Today
• Main Author: Brooks, Kent
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2019
• Subjects: Canada; Greenland; Sept Iles
• Online Access: http://dx.doi.org/10.1111/gto.12280; https://onlinelibrary.wiley.com/doi/pdf/10.1111/gto.12280; https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gto.12280

A large book entitled Layered Intrusions (edited by Bernard Charlier, Olivier Namur, Rais Latypov and Christian Tegner, Springer) has been published recently. This book (almost 750 pages) has 15 contributions by 36 experts in the field. While Part I deals with subjects such as geochronology, igneous layering, textures, silicate liquid immiscibility and behaviour of precious metals in these intrusions, Part II examines six examples that are reviewed by experts: Panzhihua (China), Sept Iles (Canada), Bushveld (South Africa), Kiglapait (Labrador), Ilímaussaq (Greenland) and ophiolitic magma chambers in the Canadian Appalachians. The publication of this book has led me to consider the geology of the most famous of them all—the Skaergaard Intrusion of Greenland—and my long history of studying it.