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HISTORIC STOPS AND GUIDEBOOKS WEB MAP

Use the web map below to view past field conference stop locations and download guidebooks. Click here to open the map in a new window (recommended for mobile users).

GUIDEBOOK ARCHIVE

A complete collection of guidebooks can be found below.

1982

Geology of the Middle Ordovician Martinsburg Formation and related rocks in Pennsylvania

Leaders:

G. C. Stephens, T. O. Wright, L. B. Platt
Guidebook
No Road Log
This field conference allowed participants to examine outcrops, lithologies, and structures of the Martinsburg Formation. The discussion examined the structure, stratigraphy, sedimentology, and plate tectonics of the formation. The first day of the field trip was spent west of Harrisburg in the Great Valley. The second day was spent east of Harrisburg in the allochthonous “Hamburg klippe”.

1981

Geology Of Tioga And Bradford Counties, Pennsylvania

Leaders:

T. M. Berg, G. H. Crowl, W. E. Edmunds, P. B. Luce, W. D. Sevon, J. P. Wilshusen, D. L. Woodrow
Guidebook
No Road Log
The guidebook was for an area untouched by a geologic study in recent years. Included are the stratigraphy, sedimentology, glacial geology, economic geology, and groundwater geology.

1980

Land Use and Abuse – The Allegheny County Problem

Leaders:

W. R. Adams, R. P. Briggs, H. F. Ferguson, N. K. Flint, W. S. Skinner
Guidebook
No Road Log
The field conference highlighted the geology of the Pittsburgh area. Included are the geology of the area, coal geology, oil geology, and geologic hazard problems.

1979

Devonian Shales of South-Central Pennsylvania and Maryland

Leaders:

J. M. Dennison, K. O. Hasson, D. M. Hoskins, R. M. Jolley, W. D. Sevon
Guidebook
No Road Log
The authors describe the major purpose of this field conference as to demonstrate the outcrop stratigraphic relationships and nomenclatural changes among the Brallier Formation, Harrell and Burket Shales, Tully Limestone, and Mahantango Formation. A secondary purpose is to illustrate the facies and faunal changes within the Needmore Shale and Huntersville chert.

1978

Uranium In Carbon, Lycoming, Sullivan, And Columbia Counties, Pennsylvania

Leaders:

W. D. Sevon, A. W. Rose, R. C. Smith, and D. T. Hoff
Guidebook
No Road Log
Sedimentological and geochemical models were presented to account for the primary distribution of the uranium minerals and their enclosing rocks. A post-depositional model was also presented to explain the present localizations of these minerals.

1977

Stratigraphy and Applied Geology of the Lower Paleozoic Carbonates in Northwestern New Jersey

Leaders:

F. J. Markewicz, R. Dalton, W. Spink, R. Metsger, C. Lucey
Guidebook
No Road Log
The intent of this field trip is to present the subdivision of the Cambro-Ordovician “Kittatinny” carbonate sequence and to cite some case histories of environmental, geohydrologic, and engineering problems. Two field trips, covering northwestern New Jersey, are outlined in the guidebook.

1976

Bedrock And Glacial Geology of Northwestern Pennsylvania in Crawford, Forest and Venango Counties

Leaders:

A. N. Ward, W. F. Chapman, M. T. Lukert, J. L. Craft
Guidebook
No Road Log
The area examined by this trip is near the boundary between the glaciated and unglaciated sections of the Allegheny Plateau Province. The Mapledale and Titusville Tills, with their respective glaciofluvial deposits, are examined, as are exposures of Upper Devonian(?), Mississippian, and Lower Pennsylvanian rocks. The controversial Carbon-14 dating site that placed the Titusville Till in the early Wisconsinan was visited.

1975

The Late Wisconsinan Drift Border in Northeastern Pennsylvania

Leaders:

W. D. Sevon, G. H. Crowl, and T. M. Berg
Guidebook
No Road Log
The character and availability of the Late Wisconsinan drift materials, similarities and differences between the Late Wisconsinan drift and pre-Late Wisconsinan-post Sangamonian drift, the character of the Illinoian glacial drift, the character of deposits of periglacial origin, and the reasoning used in differentiating and dating these various deposits are included in this field guide.

1974

Geology of the Piedmont of Southeastern Pennsylvania

Leaders:

R. V. Amenta, M. L. Crawford, W. A. Crawford, W. B. Fergusson, W. R. Parrott, F. H. Roberts, E. J. TroJan, M. E. Wagner
Guidebook
No Road Log
The guidebook contains a group of studies dealing with the Pennsylvania Piedmont, including an introduction to crystalline rocks, deformation and metamorphism in the Wissahickon Formation, and an examination of sinkholes

1973

Structure and Silurian-Devonian Stratigraphy of the Valley and Ridge Province, Central Pennsylvania

Leaders:

R. T. Faill, R. W. Wells, R. P. Nickelsen, D. M. Hoskins
Guidebook
No Road Log
The Valley and Ridge Province of the Appalachians has been considered a classic area of relatively simple geologic structures with complete and undeformed Paleozoic stratigraphic sections. Revisions of the structural geology and stratigraphy are demonstrated in this field trip guide.
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