Doe Run Window

Doe Run Window Legend

West Grove, PA 7.5 min quadrangle

West Grove Isograds


The links above provide access to pdf files of geologic maps and legends for the PA-DE piedmont.  Caution, some the files are quite large and should only be downloaded via broadband access to the web. 

Additional references are listed below.

Alcock, J., 1994, The discordant Doe Run thrust: Implications for stratigraphy and structure in the Glenarm Supergroup, southeastern Pennsylvania Piedmont, Geological Society of America Bulletin, v. 106, p. 932-941.

Alcock, J. and Wagner, M.E., 1995, Metamorphic discontinuities in the Pennsylvania-Delaware Piedmont: evidence for early Paleozoic assembly. Canadian Journal of Earth Sciences, v. 32, p. 686-698.

Bailey, E.B., and Mackin, H., 1937, Recumbent folding in the Pennsylvania Piedmont; preliminary statement, American Journal of Science, v. 33, p. 187-190.

Bascom, F. and Stose, G.W., 1932Description of the Coatesville and West Chester Quadrangles: U.S. Geological Survey Atlas, Folio #223, 15 pp.

Bliss, E.F., and Jonas, A.I., 1916, Relation of the Wissahickon mica gneiss to the Shenandoah Limestone and Octararo schist of the Doe Run and Avondale region, Chester County, Pennsylvania: U.S. Geological Survey Professional Paper 98-B, 34 pp.

McKinstry, H.E., 1949, Mineral Isograds in southeastern Pennsylvania:  American Mineralogist, v. 34, p. 874-892.

McKinstry, H. 1961, Structure of the Glenarm Series in Chester County, Pennsylvania: Geological Society of America Bulletin, v. 72, p. 557-578.

Schenck, W.S., Plank, M.O., and Srogi, L., 2000, Bedrock geologic map of the piedmont of Delaware and Adjacent Pennsylvania, Report of Investigations No. 59, Delaware Geologic Survey, Newark, DE, 52 pp.