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Lava Forks Provincial Park is a provincial park in northern British Columbia, Canada. It is the site of Canada's most recent volcanic eruption, which occurred around 1904 at Lava Fork (see The Volcano). [2] [3] This park lies within the traditional territory of the Tahltan Nation. [4] [5]
The two main types of lava field structures are defined as sheet flow lava and pillow lava. Sheet flow lava appears like a wrinkled or folded sheet, while pillow lava is bulbous, and often looks like a pile of pillows atop one another. [2] An important aspect of lava flow morphology is a phenomenon known as lava flow inflation.
A false-color satellite image of the park and surrounding area (click image to enlarge) The Lava Beds National Wilderness is a 28,460-acre (11,520 ha) wilderness area within the Lava Beds National Monument. It was designated by the US Congress on October 13, 1972, with passage of Public Law 92-493. [13]
The Hell's Half Acre lava plain is located in Bingham and Bonneville counties in the state of Idaho. The site is about 150 square miles (390 km 2) in size. [1] The area where a former lava lake existed is marked by a 875-yard (800 m) long by 328-yard (300 m) wide depression near the summit of the lava field. [7]
The largest of the Northern Basin and Range subregions, the High Lava Plains covers 10,262 square miles (26,578 km 2) in Oregon and 5,740 square miles (14,867 km 2) in Nevada, featuring a variety of land uses, including rangeland, wildlife habitat, irrigated pastureland and cropland, historic gold and silver mines, and active opal mines and ...
In 1992, Coffin and Eldholm initially defined the term "large igneous province" as representing a variety of mafic igneous provinces with areal extent greater than 100,000 km 2 that represented "massive crustal emplacements of predominantly mafic (magnesium- and iron-rich) extrusive and intrusive rock, and originated via processes other than 'normal' seafloor spreading."
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Boring Lava was erupted by vents in the volcanic field, [6] [74] and it has been exposed at elevated topographic levels in intact volcanic cones and dissected lava plains. There is likely more lava deposited under Quaternary sedimentary mantle throughout the region, [6] though activity was confined to a relatively concentrated area. [75]