The Slide Mountain Ocean was an ancient ocean that existed between the Intermontane Islands and North America beginning around 245 million years ago in the Triassic period. It is named after the Slide Mountain Terrane , which is composed of rocks from the ancient oceanic floor. There was a subduction zone on the Slide Mountain Ocean's floor called the Intermontane Trench where the Intermontane Plate was being subducted under North America. The floor of the Slide Mountain Ocean was pushed up onto the ancient margin of North America.
3-540: This article about a specific Canadian geological feature is a stub . You can help Misplaced Pages by expanding it . This palaeogeography article is a stub . You can help Misplaced Pages by expanding it . This article related to the Triassic period is a stub . You can help Misplaced Pages by expanding it . Palaeogeography Palaeogeography (or paleogeography ) is the study of historical geography , generally physical landscapes . Palaeogeography can also include
6-459: A key role in the field of petroleum geology , because ancient geomorphological environments of the Earth 's surface are preserved in the stratigraphic record. Palaeogeographers also study the sedimentary environment associated with fossils for clues to the evolutionary development of extinct species. Palaeogeography is furthermore crucial to the understanding of palaeoclimatology , due to
9-413: The study of human or cultural environments. When the focus is specifically on landforms , the term paleogeomorphology is sometimes used instead. Paleomagnetism , paleobiogeography , and tectonic history are among its main tools. Palaeogeography yields information that is crucial to scientific understanding in a variety of contexts. For example, palaeogeographical analysis of sedimentary basins plays
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