Sonestown 7.5-Minute Quadrangle

Open-File Report OFSM 04–02.1: Surficial Geology of the Sonestown 7.5-Minute Quadrangle, Lycoming and Sullivan Counties, Pennsylvania (2004; rev. 2/2006)

The open-file report includes text, data tables, and a geologic map. The supporting GIS datasets are provided as separate downloads. Information from this geologic dataset was gathered and interpreted as part of a cooperative Statemap project between the United States Geological Survey (USGS), the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey (Middletown, Pa.), and Bloomsburg University of Pennsylvania.

The Sonestown surficial geology map was slightly revised and re-released in February 2006. The surficial geology was revised along the northern border to edge match newer surficial mapping on the Eagles Mere quadrangle. The striation data set was changed from a line set to a point set to more accurately match the striation table (Table 2), which is included in the report. Several cosmetic changes were also made to the map symbology.

“Open-file” reports are informal releases to allow quicker public access to geologic data. Open-file reports have been reviewed for conformity with the open-file publication guidelines of the Bureau of Topographic and Geologic Survey. They typically have not gone through a formal editorial review process. In terms of technical and geological content, the standards for preparation of texts for informal release should not vary in quality, accuracy, or precision from the standards applied to similar geologic texts destined for formal publication. Open-file reports also may be released when the information is expected to be updated frequently, or when a limited audience is expected. Open-file reports are compiled by Survey staff and/or outside cooperators.

This report has not undergone external peer review.

Disclaimer

Downloads

• Open-file report (PDF* 3.16 MB); opens in a new window. Geologic map is located on page 20 of the document. To print the map, follow printing instructions in the document.

Suggested Citation: Braun, D. D., 2006, Surficial geology of the Sonestown 7.5-minute quadrangle, Lycoming and Sullivan Counties, Pennsylvania: Pennsylvania Geological Survey, 4th ser., Open-File Report OFSM 04–02.1, 21 p., Portable Document Format (PDF).

• GIS data (2 formats)
  • ESRI geodatabase; includes ESRI mxd file, metadata, disclaimer, readme files (ZIP** 1.08 MB)
  • ESRI shapefiles, includes metadata, disclaimer, readme files (ZIP** 1.04 MB)

CONTACT INFORMATION:

Geology compiled by Duane D. Braun, Geography and Earth Science Department, Bloomsburg University of Pennsylvania, Bloomsburg, Pa., 17815.

Questions regarding the GIS data sets and maps should be directed to Thomas G. Whitfield, P.G., 717–702–2023, Bureau of Topographic and Geologic Survey, 3240 Schoolhouse Road, Middletown, PA 17057.

*You will need the Acrobat Reader 6.0 or later to successfully view/print some information. This program can be downloaded to your computer for free; simply click on the "Get Acrobat Reader" button at right to download now.

**You will need the Winzip 3.2 or similar tool to successfully view/print/extract some information. A trial version of this program can be downloaded to your computer for free; simply click on the "Winzip" button at right to download.