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 Authority (Red Cross) responded to appeals by Indonesian officials to assist the Yogyakarta population and is providing a field hospital. According to head of medical services at the UAE Interior Ministry Brig. Salem Al-Junaibi is to be staffed by medical and administrative workers and will be set up within the 'safe zone' more than 20 km from the mountain. Acute respiratory infection, hypertension, and headache were affecting Mount Merapi eruption survivors. "The displaced people are so vulnerable to these diseases," an official of the Health Ministry Supriyantoro stated on Sunday, 7 November. Refugees received medical treatment at clinics set up