Английская Википедия:Conestoga Formation

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Шаблон:Orphan

Шаблон:Infobox rockunit

Файл:Bulletin 799 Plate 5B Folded Conestoga Limestone.jpg
Folded micaceous marble of Conestoga Formation, in a quarry a half-mile northwest of Quarryville
Файл:Bulletin 799 Plate 4B Basal Conestoga Slate and Vintage Dolomite.jpg
Basal Conestoga (slate and limestone conglomerate), unconformably overlying Vintage Dolomite, Bellemont Quarry

The Conestoga Formation is a geologic formation in Pennsylvania.

Description

Light-gray, thin-bedded, impure, contorted limestone having shale partings; conglomeratic at base; in Chester Valley, includes micaceous limestone in upper part, phyllite in middle, and alternating dolomite and limestone in lower part.[1]

Type section

Named from outcrops along Conestoga River, Lancaster County, Pennsylvania.

References

Шаблон:Reflist

  1. Conestoga Formation, USGS Mineral Resources On-Line Spatial Data