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Flourmill Cone
The Flourmill Volcanoes, also known as The Flourmills, are a small volcano range near the west boundary of Wells Gray Provincial Park in east-central British Columbia, Canada. Located north of Mahood Lake and west of the Clearwater River, they form part of the Wells Gray-Clearwater volcanic field. Geography Two volcanic centres form the range, namely ''Flourmill Centre'' and ''Spanish Lake Centre''. During volcanic activity 3,000 years ago, the craters of two cinder cones were breached, and lava flowed out the south side into the pass between Spanish Creek and Flourmill Creek. The lava then dammed Spanish Creek, creating Spanish Lake, occupying about of the Spanish valley to the southwest. This lava flow averages thick.Neave, Roland (2015). ''Exploring Wells Gray Park'', 6th edition. Wells Gray Tours, Kamloops, BC. . Both cones were built upon unweathered glacial material. Spanish Lake Centre Situated east of Spanish Lake is the northerly Spanish Lake Centre with an elevation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cariboo Land District
The Cariboo Land District is a cadastral survey subdivision of the province of British Columbia, Canada, created with rest of those on Mainland British Columbia via the Lands Act of the Colony of British Columbia in 1860. The British Columbia government's BC Names system, a subdivision of GeoBC, defines a land district as "a territorial division with legally defined boundaries for administrative purposes" All land titles and surveys use the Land District system as the primary point of reference, and entries in BC Names for placenames and geographical objects are so listed. Description The Cariboo Land District is one of the original Land Districts of the province, its northern portion having been split off as the Peace River Land District, which is to its north. To is south is the Lillooet Land District and a small northerly extension of the Kamloops Subdivision Yale Land District. On its west are Ranges 3, 4 and 5 of the Coast Land District and part of the southeastern flank of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Block
A volcanic block is a fragment of rock that measures more than in diameter and is erupted in a solid condition. Blocks are formed from material from previous eruptions or from country rock and are therefore mostly accessory or accidental in origin. Blocks also occur due to the impact and breakage of volcanic bombs (a bomb is a block with streamlined appearance, often expelled in a molten state). Bombs can also occur due to the disruption of the crust of a lava dome that has formed up or over a vent during an eruption. Features Blocks are nearly always angular to sub-angular and roughly equidimensional. If the parent rock is flow-foliated lava, sedimentary material or schistose metamorphic rocks, the blocks may have a plate-like or slab-like form. In other cases, blocks derived from great depths may resemble polished water-worn pebbles and are cobbled due to fluidisation and upwards transport. Blocks can be enormous and may be transported great distances from the volcanic vent. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |