Magma characterization of the Mexican volcanic belt (Mexico) |
| |
| Authors: | S Pal M Lopez J Perez D J Terrell |
| |
| Institution: | 1. Instituto de Geofisica, Universidad Nacional Autonoma de México Ciudad Universitaria, México 20, D.F., Mexico
|
| |
| Abstract: | Over 330 bulk chemical analyses of rocks (Oligocene or Miocene to Recent) from the Mexican Volcanic Belt (MVB) have been compiled. These analyses all together represent a calc-alkaline sequence of continental margin type. The North-Eastern part of the Belt seems to overlap with another volcanic province, namely. Eastern Cordillera in which magmas are mostly of alkaline sequence. A model involving fractional crystallization as the principal mechanism is proposed for magma genesis in the MVB. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
