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Glacial ice was further categorized as dense glacial melange (Type 3), substantial glacial ice with large icebergs (Type 2), low-density glacial ice with large icebergs (Type 1), consistent small ice ...

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This is the fifth largest calving event since 2000, Shuman says. There have been large calving events in 2001, 2007, 2013, 2015 and now 2017. "So that spacing tells you about six years between ...