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The Geology of McKean County, and Its Connection With That of Cameron, Elk ...
Charles Albert Ashburner
No preview available - 2015
Allegheny river Alton coal group Alton group Alton Upper anticlinal axis Bituminous coal Black slate Blue slate Bond Vein bottom of formation Bradford oil sand Bradford sand brown SS Buttsville Cameron county Chemung Clarion clay Clermont bed Clermont coal bed coal basin coal measures containing Dalson depth Detritus district drill hole east elevation Elk county farm feet ferruginous fine-grained Fireclay flaggy sandstone Forest county geological gray sand Gray shale Gray slate Hamlin Hamlin township Howard Hill iron Johnson run sandstone Kane Keating Kinzua creek sandstone Lafayette Lafayette township limestone massive sandstone McKean county micaceous micaceous sandstone mile Norwich Olean conglomerate outcrop pebbles Pocono Potato creek Pottsville Red shale Red soil reported road sandrock sandy shaft slate and shell Smethport specs strata stratum summit thickness tion top of formation township upper bed upper coal valley vicinity Wetmore White SS Wilcox