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・ Willy Dahl
・ Willy Dasso
・ Willy de Beer
・ Willy De Clercq
・ Willy de l'Arbre
・ Willy de Majo
・ Willy de Vos
・ Wills Building
・ Wills by-election, 1992
・ Wills Challenge Series 1997/98
・ Wills Creek
・ Wills Creek (North Branch Potomac River)
・ Wills Creek (Ohio)
・ Wills Creek Bollman Bridge
・ Wills Creek Conservation Park
Wills Creek Formation
・ Wills Crossroads, Alabama
・ Wills Eye Hospital
・ Wills Gymnasium
・ Wills Hall
・ Wills Hill, 1st Marquess of Downshire
・ Wills Memorial Building
・ Wills Mountain
・ Wills Mountain State Park
・ Wills Navy Cut
・ Wills Neck
・ Wills of Tadeusz Kościuszko
・ Wills Point Formation
・ Wills Point High School
・ Wills Point Independent School District


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Wills Creek Formation : ウィキペディア英語版
Wills Creek Formation

The Silurian Wills Creek Formation is a mapped bedrock unit in Pennsylvania, Maryland, Virginia, and West Virginia.
==Description==
The Wills Creek is defined as a moderately well bedded greenish-gray shale containing local limestone and sandstone zones, or more specifically as an olive to yellowish-gray, thin-bedded sandstone, calcareous shale, dolostone, argillaceous limestone, and sandstone. Red shale and siltstone occur in the lower part of the formation. The formation has a thickness between 450 feet and 600 feet in Maryland and 445 to 620 feet in Pennsylvania.
The Wills Creek forms the bedrock of the valley around and to the east of Lewistown, Pennsylvania.

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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