Circum-Superior Belt northwestern Superior craton margin intrude an older, 2,090 to 2,070 million-year-old dike swarm. The Ospwagan Group is younger than and the 1,864 million-year-old Winnipegosis komatiite belt lies to the southwest. Numerous tectonic settings have been suggested for triggering magmatism in the Fox River Belt, including a marginal basin rifting event. At the southern portion of the Circum-Superior Belt, a group of fragmental sediments composed of iron formation was formed during a period of magmatic activity in the Marquette Range Supergroup. Included in the Marquette Range Supergroup is the Hemlock Formation, a bimodal volcanic group that is estimated to have an
2010 eruptions of Mount Merapi Mount Merapi. "We are concerned about children who are yet to be united with their parents," said Makbul Mubarak, a coordinator for volunteers who are trying to reunite separated families. A Merapi Response Radio 100.2 FM "talk show" presented the Yogyakarta Governor, Sri Sultan Hamengkubuwono X, the head of the BNPB, Dr. Syamsul Maarif, and chief of the PVMBG, Dr. Surono on evening of 11 November. A media center and a call center were also established to attempt to assist in bridging an information gap related to information on current conditions and the management of victims of Merapi. BNPB stated