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・ Baldassarre Carrari the Elder
・ Baldassarre Lanci
・ Baldassarre Longhena
・ Baldassarre Negroni
・ Bald cap
・ Bald Creek Historic District
・ Bald eagle
・ Bald Eagle (disambiguation)
・ Bald Eagle (horse)
・ Bald Eagle and Spring Creek Navigation
・ Bald Eagle Area School District
・ Bald Eagle Creek
・ Bald Eagle Creek (Little Juniata River)
・ Bald Eagle Creek (West Branch Susquehanna River)
・ Bald Eagle Creek Path
Bald Eagle Formation
・ Bald Eagle Lake
・ Bald Eagle Mountain
・ Bald Eagle Mountain (disambiguation)
・ Bald Eagle State Forest
・ Bald Eagle State Park
・ Bald Eagle Township, Clinton County, Pennsylvania
・ Bald Eagle Valley
・ Bald Eagle Valley Railroad
・ Bald Eagle, California
・ Bald Eagle, Kentucky
・ Bald Eagle, Minnesota
・ Bald Eagle, Pennsylvania
・ Bald Eagle-Nittany High School
・ Bald Galloway


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Bald Eagle Formation : ウィキペディア英語版
Bald Eagle Formation

The Ordovician Bald Eagle Formation is a mapped bedrock unit in central Pennsylvania, USA. It is a ridge-forming unit in the Appalachian Mountains.
==Description==

The Bald Eagle is defined as a gray to olive-gray and grayish-red, fine to coarse-grained crossbedded sandstone or greywacke. A conglomeratic member, called the Lost Run Member, exists in some locations.〔Berg, T.M., Edmunds, W.E., Geyer, A.R. and others, compilers, (1980). Geologic Map of Pennsylvania: Pennsylvania Geologic Survey, Map 1, scale 1:250,000.〕

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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