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


The Rinjani crater forming eruption is thought to have occurred within the 13th century. Dated to “late spring or summer of 1257,” this eruption is now thought of the likely supply of high concentrations of sulfur found in widely spread ice core samples and should are “the most powerful volcanic blast since humans learned to write down.” the huge eruption may have triggered an episode of worldwide cooling and unsuccessful harvests.

Eruption rate, eruption sites, eruption type and

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