Volcanic Composition

In Lombok, Rinjani volcano lies just about three hundred kilometres (188 mi) north of the Sunda Trench (also referred to as Java trench) and is set about a hundred and seventy kilometres (110 mi) higher than the active north dipping Benioff zone. Supported the composition of andesites that have terribly low metal concentrations and low Mg/Mg+Fe … Read more

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