Entangled Acres sits atop Catlin Hill. The silurian geology features exposed fossils from the Senecan Series of the upper Devonian. The West Falls Group
LINKS
Correlation of the Silurian and Devonian Rocks in New York State
Hydrogeology of the Waverly-Sayre area in Tioga
Catastrophic middle Pleistocene jökulhlaups in the upper Susquehanna River: Distinctive landforms from breakout floods in the central Appalachians
GLOSSARY
In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex up in which the hinge or crest is the location where the curvature is greatest, and the limbs are the sides of the fold that dip away from the hinge. Anticlines can be recognized and differentiated from antiforms by a sequence of rock layers that become progressively older toward the center of the fold. Therefore, if age relationships between various rock strata are unknown, the term antiform should be used.
“The Silurian and Devonian rocks of New York comprise a sequence of richly fossiliferous strata, about 13,000 feet maximum thickness, made known throughout the world by the efforts of a host of geologists and paleontologists. The incomparable James Hall, of course, was the most famous of these, but the long list also includes the beginning investigators-Amos Eaton, W. H. Mather and Lardner Vanuxem; those most active shortly after the turn of the century-J. M. Clarke, Amadeus Grabau, C. A. Hartnagel, C. S. Prosser, H. S. Williams, and Charles Schuchert; and several more recent scientists-K. E. Caster, G. H. Chad-wick, G. Arthur Cooper, and Winifred Goldring. It was the intensive efforts of these people that made the New York Silurian-Devonian sequence so well known and established it as the standard reference section for eastern North America.
A succession of correlation charts of the Silurian and Devonian rocks of New York have appeared during the past 150 years of study. Each has been a summary of the knowl-edge accumulated up to the time of its publication. The work continues and the charts published in this report represent similar statements of progress.”
