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Kings Bowl

View on map:42.949383°N 113.216246°W

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The Kings Bowl is an example of a bowl-shaped structure created by an explosion due to the interaction of water (steam) and lava.  You can also see a rift going through the bowl (part of the Great Rift of Idaho).  

Description


Map showing the location of Craters of the Moon National Monument and Preserve

Kings Bowl Lava Field erupted during a single fissure eruption on the southern part of the Great Rift about 2,250 years ago. This eruption probably lasted only a few hours to a few days. The field preserves explosion pits, lava lakes, squeeze-ups, basalt mounds, and an ash blanket.[7] The Wapi Lava Field probably formed from a fissure eruption at the same time as the Kings Bowl eruption. More prolonged activity over a period of months to a few years led to the formation of low shield volcanos-(?) in the Wapi field. The Bear Trap lava tube, between the Craters of the Moon and the Wapi lava fields, is a cave system more than 15 miles (24 km) long.[26] The lava tube is remarkable for its length and for the number of well-preserved lava cave features, such as lava stalactites and curbs, the latter marking high stands of the flowing lava frozen on the lava tube walls. The lava tubes and pit craters of the monument are known for their unusual preservation of winter ice and snow into the hot summer months, due to shielding from the sun and the insulating properties of basalt.

References

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