2010 eruptions of Mount Merapi The exclusion zone did not include the metropolitan areas of Yogyakarta or Adisucipto International Airport However the Indonesian Government advised that Adisucipto International Airport would be closed until at least 20 November. Other airports in Java had been subject to periodic closure due to volcanic activity at Mount Merapi. The travel bulletin further advised that eruptions or any widening of the Indonesian Government's exclusion zone would likely cause major disruption to services in Yogyakarta and surrounding areas. At the time the advisory was issued residents of Yogyakarta were still able to leave the city by road and rail, however any
Circum-Superior Belt margin. The last collision occurred on the southeastern portion of the Superior craton to produce the Grenville orogeny 1,100 million years ago. Because most of the Circum-Superior Belt was formed by widespread mafic-ultramafic magmatism 1,884 to 1,864 million years ago along the Superior craton margin during these orogenies, a number of different suggestions have been made to explain the questionable origins of this large igneous province. It is also not clear if the Circum-Superior Belt has a single origin or it has several origins. Suggestions include back-arc rifting, foredeep flexure, mantle plumes and the breakup of a microcontinent. The geochemical