Great Falls orogeny
id:
great-falls-orogeny-272-8153104
title:
Great Falls orogeny
text:
The Great Falls orogeny, or the Big Sky orogeny, was a mountain building event in the Proterozoic preserved in what is now Montana and northwestern Wyoming. It is one of several orogenis involved in the assembly of the proto-North American continent Laurentia. Beginning around 1.86 billion years ago the Hearne craton and Wyoming craton began to migrate closer together with the closure of the Medicine Hat Ocean. In the main phase of the Great Falls orogeny, arc magmatism and anatexis occurred as
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Great_Falls_orogeny
date created:
date modified:
2021-12-10T18:46:53Z
main entity:
{"identifier":"Q85764420","url":"https://www.wikidata.org/entity/Q85764420"}
image:
fields total:
13
integrity:
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