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基威诺半岛

基维诺半岛

基威诺半岛(英语:Keweenaw Peninsula/ˈkwɪnɔː/ KEE-wi-naw)位于美国密歇根上半岛的最北部,深入苏必利尔湖。曾是美国第一次铜矿繁荣时期的采矿地。2000年人口普查,居民43,200。主要产业为伐木业、旅游业。基威诺半岛共有两所大学:密歇根理工大学芬兰大学英语Finlandia University

地质

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苏必利尔湖盆地横断面显示叠置的火山岩地层形成了基威诺半岛与卢瓦尔岛
苏必利尔湖向斜

10.96至10.87亿年前中元古代内陆裂谷英语Midcontinent Rift产生的火山熔岩形成了基威诺半岛。 [1]这些火山活动产生了地球上仅有的含97%纯度自然铜的地层。

参考文献

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  1. ^ Geologic Timeline - Keweenaw National Historical Park (U.S. National Park Service). www.nps.gov. [2018-06-08]. (原始内容存档于2018-06-12) (英语). 

外部链接

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47°15′N 88°20′W / 47.250°N 88.333°W / 47.250; -88.333

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基威诺半岛
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