Recent Geological History of the Delaware Valley, PA Survey, Glacial Geology, 1938

Recent Geological History of the Delaware Valley below the Water Gap by Freeman Ward, Topographic and Geologic Survey Bulletin G 10, 1938, Pennsylvania Geological Survey Fourth Series, 9-1/8 in. by 6-1/8 in., original brown softcover wraps [not rebound], 76 pages in very condition, with now rare black-and-white photographs of long-lost outcrops as an embedded Plates, with 13 figures,

 A summary of thee content of this seminal publication and the geological formations that are discussed are as follows (see auction photos for the detailed table of content for the glacial geology in this volume):

 INTRODUCTION

Purpose of investigation

Field work

Limitations of field work

BEDROCK GEOLOGY

Pre-Cambrian

Cambrian (Hardyston)

Ordovician (Kittatinny; Jacksonburg; Martinsburg)

Silurian (Shawangunk; High Falls; Cayuga)

Devonian (Helderberg; Oriskany; Onondaga; Esopus; Hamilton, etc.)

Triassic (Newark group)

Structure

TOPOGRAPHY

Appalachian zone (Ridges; Kittatinny Mountain; Great Valley; Valley Fingers)

Highland zone

Triassic lowland

Delaware Valley

SEQUENCE OF EVENTS

Preglacial events

Glacial events (Type of work; Relation of earlier and later glacial stages)

GLACIAL GEOLOGY

Summary

Wisconsin glaciation (Till; Stratified drift; Terraces; Kames; Slateford; Comparison of till and stratified drift; Striae; Wisconsin ice front)

Illinoian glaciation (Weathering; Time; Results)

Distribution

Evaluation of Preglacial, glacial and postglacial eroision

Note: This is an opportunity to own a long out-of-print geological reference; it is part of my entire expansive geological reference library (including many rare and vintage books from the 19th century) that I am selling as I approach retirement (please see my other auctions or search for “Geology" or under my eBay account "Rockman58"). 

*Please see my other auctions; I’m selling a number of more recent geological reference books and State geological publications, other miscellaneous books. Combining multiple sales of books for combined shipping is absolutely possible if they are purchased during the same week.   Ignore the combined shipping price that eBay might show you, all they do is add all the shipping costs together - I will combine your purchases and quote you a revised shipping price.  Thanks.*

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