Barron Lake is a

lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...

in southeastern

Labrador Labrador () is a geographic and cultural region within the Canadian province of Newfoundland and Labrador. It is the primarily continental portion of the province and constitutes 71% of the province's area but is home to only 6% of its populatio ...

near Sandwich Bay,

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

. It covers just under and is at an elevation of . The lake is located in the 13H12 NTS zone. Barron River flows out of the lake and joins with North River about to the north. The

Mealy Mountains The Mealy Mountains is a mountain range in the southern portion of Labrador in the Canadian province of Newfoundland and Labrador. The mountains lie south of Lake Melville and cover an area of approximately 26,495 km2 (10,231 mi2). The ...

surround the lake, which is also a part of the

Mealy Mountains National Park Reserve Mealy may refer to: * Mealy Mountains, Newfoundland and Labrador, Canada ** Mealy Mountains National Park Reserve * Darlene Mealy (active from 2006), American politician in New York City * Dean Mealy (1915-1973), American basketball player. * E ...

Geology

The lake is surrounded by late-Labradorian

granitoid A granitoid is a broad term referring to a diverse group of coarse-grained igneous rocks that are widely distributed across the globe, covering a significant portion of the Earth's exposed surface and constituting a large part of the continental ...

intrusion In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. Intrusions have a wide variety of forms and com ...

s (dated 1660-1600 ma):

megacryst In geology, a megacryst is a crystal or grain that is considerably larger than the encircling Matrix (geology), matrix. They are found in igneous rock, igneous and metamorphic rocks. Megacrysts can be further classified based on the nature of their ...

ic/

porphyritic Porphyritic is an adjective used in geology to describe igneous rocks with a distinct difference in the size of mineral crystals, with the larger crystals known as phenocrysts. Both extrusive and intrusive rocks can be porphyritic, meaning ...

granite Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, 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 coo ...

granodiorite Granodiorite ( ) is a coarse-grained (phaneritic) intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. The term banatite is sometimes used informally for various rocks ranging from gra ...

; early-Labradorian

and associated rocks (dated 1678-1671 ma): foliated to gneissic granite and

alkali feldspar granite Alkali feldspar granite, some varieties of which are called 'red granite', is a felsic igneous rock and a type of granite rich in the mineral potassium feldspar (K-spar). It is a dense rock with a phaneritic texture. The abundance of K-spar give ...

, foliated to gneissic

syenite Syenite is a coarse-grained intrusive igneous rock with a general composition similar to that of granite, but deficient in quartz, which, if present at all, occurs in relatively small concentrations (< 5%). It is considered a alkali feldspar Feldspar ( ; sometimes spelled felspar) is a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. The most common members of the feldspar group are the ''plagiocla ...

syenite and alkali feldspar granite, and compositionally equivalent well-banded

gneiss Gneiss (pronounced ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. This rock is formed under p ...

; and pre-Labradorian

supracrustal rock Supracrustal rocks (''supra'' (Latin for "above")) are rocks that were deposited on the existing basement rocks of the crust, hence the name. They may be further metamorphosed from both sedimentary and volcanic rocks. The oldest minerals on Ea ...

s (dated 1800-1770 ma):

pelitic A pelite () or metapelite is a metamorphosed fine-grained sedimentary rock, i.e. mudstone or siltstone. The term was earlier used by geologists to describe a clay-rich, fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone, t ...

schist Schist ( ) is a medium-grained metamorphic rock generally derived from fine-grained sedimentary rock, like shale. It shows pronounced ''schistosity'' (named for the rock). This means that the rock is composed of mineral grains easily seen with a l ...

and gneiss, quartz-feldspar psammitic schist and gneiss, and

metasedimentary In geology, metasedimentary rock is a type of metamorphic rock. Such a rock was first formed through the deposition and solidification of sediment Sediment is a solid material that is transported to a new location where it is deposited. It occu ...

diatexite.

References

{{authority control Labrador Lakes of Newfoundland and Labrador

Geology

See also

References