Lake Island is an
island
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...
on the coast of the
Canadian province
Within the geographical areas of Canada, the ten provinces and three territories are sub-national administrative divisions under the jurisdiction of the Canadian Constitution. In the 1867 Canadian Confederation, three provinces of British North ...
of
British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
. It is located between
Mathieson Channel
Mathieson Channel is a channel of the British Columbia Coast. It is a northern extension of Milbanke Sound. To its west are Pooley, Roderick, Susan and Dowager Islands, to its east the Don Peninsula
The Don Peninsula is a peninsula in British ...
and
Lady Trutch Passage, and is flanked by
Dowager Island
Dowager Island is an island in the North Coast region of British Columbia. To its west is Finlayson Channel, to it east Mathieson Channel. Susan Island lies to its north and Lady Douglas Island to its south. James Johnstone, one of George Vanco ...
(to the northwest),
Lady Douglas Island
Lady Douglas Island is an island in the British Columbia Coast, North Coast region of the Provinces and territories of Canada, Canadian province of British Columbia. It is located off the south coast of Dowager Island.
Lady Douglas Island is part ...
(to the west), and a long finger shaped
peninsula
A peninsula (; ) is a landform that extends from a mainland and is surrounded by water on most, but not all of its borders. A peninsula is also sometimes defined as a piece of land bordered by water on three of its sides. Peninsulas exist on all ...
of the Canadian mainland to the east. Lake Island is not a
lake island
A lake island is any landmass within a lake. It is a type of inland island. Lake islands may form a lake archipelago.
Formation
Lake islands may form in numerous ways. They may occur through a build-up of sedimentation as shoals, and become ...
, as it is in an
inlet
An inlet is a (usually long and narrow) indentation of a shoreline, such as a small arm, bay, sound, fjord, lagoon or marsh, that leads to an enclosed larger body of water such as a lake, estuary, gulf or marginal sea.
Overview
In marine geogra ...
of the Pacific Ocean, and lies only some 6 kilometres from the open sea.
Lake Island is part of a volcanic area called the
Milbanke Sound Group and includes
monogenetic cinder cone
A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions o ...
s.
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
ic
tuff
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock cont ...
breccia
Breccia () is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix.
The word has its origins in the Italian language, in which it means "rubble". A breccia may have a variety of di ...
s on Lake Island originated from
Helmet Peak.
Global Volcanism Program: Milbanke Sound Group
/ref>
See also
* List of islands of Canada
References
Central Coast of British Columbia
Islands of British Columbia
Range 3 Coast Land District
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