Hydrothermal Sr exchange at the contact of the Dumbarton Rock basalt Journal Articles uri icon

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abstract

  • Synopsis The margin of the Dumbarton Rock basalt was contaminated by sedimentary Sr with a high 87 Sr/ 86 Sr ratio. This was probably introduced by hydrothermal fluids in a process of fluid–rock Sr exchange. Fluids followed a preferred path just inside the contact where permeability was increased by cooling joints.

publication date

  • March 1983