Annieopsquotch Mountains
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The Annieopsquotch Mountains ( ) are located in the southwestern interior of the
Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...
island of Newfoundland, east of Bay St. George. Rising to a peak of above sea level, this range of hills runs in a north-eastward direction between Victoria Lake and
Red Indian Lake Beothuk Lake, formerly Red Indian Lake, is located in the interior of central Newfoundland in the province of Newfoundland and Labrador, Canada. The lake drains into the Exploits River which flows through the interior of Newfoundland and exits into ...
. Its name is
Mi'kmaq The Mi'kmaq (also ''Mi'gmaq'', ''Lnu'', ''Miꞌkmaw'' or ''Miꞌgmaw''; ; ) are a First Nations people of the Northeastern Woodlands, indigenous to the areas of Canada's Atlantic Provinces and the Gaspé Peninsula of Quebec as well as the nort ...
and literally translated means 'terrible rocks'. Geologically the range is composed of
Ordovician The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. T ...
ocean floor rock which includes an
ophiolite An ophiolite is a section of Earth's oceanic crust and the underlying upper mantle that has been uplifted and exposed above sea level and often emplaced onto continental crustal rocks. The Greek word ὄφις, ''ophis'' (''snake'') is found ...
thrust Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that sys ...
onto the continent during the closure of the Iapetus Ocean. Silurian clastic
sedimentary rock Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...
s
unconformably An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. In general, the older layer was exposed to erosion for an interval ...
overly the ophiolite and
granite Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies under ...
intruded the area during the Devonian. Faulting and tilting of the area continued through the Carboniferous.Dunning, G. R., ''The Annieopsquotch Complex Southwest Newfoundland, an Early Ordovician Ophiolite and Its Unconformable Silurian Cover,'' in: Roy, David C., ''Northeastern Section of the Geological Society of America (Centennial Field Guide),'' Geological Society of America, 1987 pp 441-445


References

Mountain ranges of Newfoundland and Labrador {{Newfoundland-geo-stub