Deformation by Ice Push of Lithified Sediments in South-Central Iowa

Deformation by Ice Push of Lithified Sediments in South-Central Iowa

Superficial structures attributed to deformation by ice push have developed in Pennsylvanian rocks exposed in Madison County, Iowa. Folds, faults, and joints are found in a lithified limestone and in underlying shale units, with deformation through flowage and fracture expressed in varying degrees i...

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Veröffentlicht in:The Journal of geology 1957-09, Vol.65 (5), p.546-550
Hauptverfasser: Lamerson, Paul R., Dellwig, Louis F.
Format: Artikel
Sprache:eng
Schlagworte:
Anticlines
Deformation
Geological Notes
Geology
Glacial till
Ice
Limestones
Quarries
Sediments
Shales
Stone
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Beschreibung
Zusammenfassung:Superficial structures attributed to deformation by ice push have developed in Pennsylvanian rocks exposed in Madison County, Iowa. Folds, faults, and joints are found in a lithified limestone and in underlying shale units, with deformation through flowage and fracture expressed in varying degrees in the different lithologic units.
ISSN:0022-1376
1537-5269
DOI:10.1086/626456