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・ Black Rock (band)
・ Black Rock (Brighton and Hove)
・ Black Rock (Bristol County, Massachusetts)
・ Black Rock (James Blood Ulmer album)
・ Black Rock (Joe Bonamassa album)
・ Black Rock Airport
・ Black Rock Arts Foundation
・ Black Rock Beacon
・ Black Rock Bridge
・ Black Rock City, LLC
・ Black Rock Coalition
・ Black Rock Congregational Church
・ Black Rock Dam
・ Black Rock Dam (Schuylkill River)
・ Black Rock Desert
Black Rock Desert volcanic field
・ Black Rock Desert Wilderness
・ Black Rock Desert–High Rock Canyon Emigrant Trails National Conservation Area
・ Black Rock Football Club
・ Black Rock Forest
・ Black Rock Formation
・ Black Rock Gardens Historic District
・ Black Rock Gorge
・ Black Rock Halt railway station
・ Black Rock Harbor
・ Black Rock Harbor Light
・ Black Rock High School
・ Black Rock Historic District
・ Black Rock Lock
・ Black Rock mine


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Black Rock Desert volcanic field : ウィキペディア英語版
Black Rock Desert volcanic field

The Black Rock Desert volcanic field in Millard County, Utah, is a cluster of several volcanic features of the Great Basin such as Pavant Butte and Tabernacle Hill. The field's Ice Springs event was an explosive eruption followed by lava flows that were Utah's most recent volcanic activity (1140–1440 AD). which overlapped the older flows of Pavant Butte.〔
The Pleistocene-Holocene field has been an active tectonic area for approximately 2.7 million years. Within the past 1.5 million years, local volcanism has produced both rhyolitic and basaltic cones from near twenty-four vents from which lava escapes through geologic faults.
==References==



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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