66 PROCEEDINGS OF THE PHILADELPHIA MEETING 



STRATIGRAPHIC DISTURBANCE THROUGH THE OHIO VALLEY RUNNING FROM 

 THE APPALACHIAN PLATEAU IN PENNSYLVANIA TO THE OZARK MOUN- 

 TAINS IN MISSOURI 



BY JAMES n. GARDNER 



(Abstract) 



A line of disturbance in ttie eartli's strata, wliich at some points consists of 

 an anticline and at others of a fault zone, runs from rennsylvania through 

 the Ohio Valley to Missouri. Beginning as the Chestnut Ridge anticline in 

 the Appalachian Plateau of Pennsylvania, it passes through West Virginia as 

 the Chestnut Ridge and Warfield anticline, through Kentucky as the Cannel 

 City-Campton-Irvine anticline, Kentucky River and Dividing Ridge fault, and 

 Rough Creek uplift; thence across southern Illinois as the Shawneetown 

 fault and Bald Hill uplift, crossing the Mississippi River to the Ozark arch. 

 It lies south of the Ohio River and I'oughly parallels it, cutting across the 

 Cincinnati geanticline in Kentucky. At three points along near its course 

 there are known intrusions of peridotite dikes, namely, in Fayette County, 

 Pennsylvania ; Elliott County, Kentucky, and the west Kentucky-Illinois fluor- 

 spar district. Tliis structural zone is now known throughout a distance of 

 560 miles. 



Presented by title in the absence of the author, 



PRELIMINARY PAPER ON RECENT CRUSTAL MOVEMENTS IN THE LAKE ERIE 



REGION 



BY CHARLES E. DECKER * 



{Abstract) 



In northeastern Ohio and in the northwestern parts of Pennsylvania and 

 New York there are numerous folds and faults exposed in the valleys of 

 streams tributary to Lake Erie and in the lake cliffs. The purpose of the 

 present study was to determine the extent, age, distribution, and significance 

 of these movements. 



Two points had already been brought out by this study. First, many of 

 these movements have taken place in recent geological time. Second, while 

 the area affected has not been completely outlined, the rocks of this area have 

 suffered deformation in a manner not duplicated in the rocks of adjacent 

 glaciated areas. 



Evidence of recency was produced to show that many of the crustal move- 

 ments are not only postglacial, but that they are later than the terraces and 

 floodplains of the streams. 



Eead in full from manuscript. 



Discussion 



Dr. I. C. White: Tlic i-cuimi discussed in tliis p.-ijuT all lies within the gla- 

 ciated belt of soft, tliiii-bcdiled I>evonian sliales. I had occasion to examine 



1 Introduced by Richard R. Uice. 



