Robuta

https://www.usgs.gov/publications/ophiolites-and-oceanic-crust Ophiolites and oceanic crust | U.S. Geological Survey OPHIOLITES consist of a pseudostratiform sequence, of harzburgite, tectonite, ultramafic and mafic cumulates sometimes including gabbro and quartz diorite... oceanic crustophiolitesgeologicalsurvey https://www.ebsco.com/research-starters/geology/ophiolites Ophiolites | Geology | Research Starters | EBSCO Research ophiolitesgeologyresearchstartersebsco