Composition and depth of origin of prima
✍
D. C. Presnall; J. D. Hoover
📂
Article
📅
1984
🏛
Springer
🌐
English
⚖ 982 KB
Some workers have held that mid-ocean ridge basalts are fractionated from high pressure (15-30 kbar) picritic primary magmas whereas others have favored primary magmas generated at about 10 kbar with compositions close to those of mid-ocean ridge basalts. Of critical significance are presumed differ