What are the minerals and textures observed in subduction -related rocks? Examples from Jenner Beach, CA Franciscan Complex
after Catlos and Sorensen, 2003 Late Jurassic-early Cretaceous age peak P ~ 0.9-1.2 GPa peak T ~ 500-700 ° C Case Study: Franciscan Complex
Jenner Beach – Mélange blocks eroded from the nearby hillsides Geologists from around the world flock to Jenner Beach. Image Courtesy of Sarah Penniston -Dorland
Blueschist PPL GAR AMPH PHE PHE= Phengite , GAR=Garnet, AMPH=Amphibole Image Courtesy of Sarah Penniston -Dorland
Blueschist XPL GAR AMPH PHE Image Courtesy of Sarah Penniston -Dorland
Blueschist PPL PHE= Phengite , GAR=Garnet, AMPH=Amphibole GAR AMPH PHE Image Courtesy of Sarah Penniston -Dorland
Blueschist XPL AMPH PHE GAR Image Courtesy of Sarah Penniston -Dorland
Eclogite PPL GAR AMPH PHE CHL OMPH CHL=Chlorite, OMPH= Omphacite Image Courtesy of Sarah Penniston -Dorland
Eclogite XPL CHL=Chlorite, OMPH= Omphacite GAR AMPH PHE CHL OMPH Image Courtesy of Sarah Penniston -Dorland
Eclogite PPL TTN= Titanite , EPI= Epidote TTN EPI Image Courtesy of Sarah Penniston -Dorland
Eclogite XPL TTN EPI TTN= Titanite , EPI= Epidote Image Courtesy of Sarah Penniston -Dorland