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Preliminary Lithogeochemical Map Showing Near-Surface Rock Types in the Chesapeake Bay Watershed, Virginia and Maryland, USGS OFR 01-187
Entry ID: USGS_OFR01-187

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Abstract: The purpose of this preliminary digital map is to provide a geographically
referenced data base showing regional patterns in the distribution of rock
types in the Virginia and Maryland parts of the Chesapeake Bay watershed. The
map may be used to evaluate the hypothesis that lithology of rocks and
sediments significantly influences the chemistry and quality of waters
traveling over and through ... View entire text
Related URL
Description: Access to documentation and data for OFR 01-187

Description: Cleaves and others. 1968 Geologic Map of Maryland
Multimedia Sample
Small multimedia sample image
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Description:  Reduced-size image showing the general layout of map sheet. 864x597
pixels, 24-bit color.

Geographic Coverage
Spatial coordinates   
  N: 39.75   S: 36.5   E: -75.0   W: -80.75

Data Set Citation
Dataset Originator/Creator: John D. Peper; Lucy B. McCartan; J. Wright Horton, Jr.; James E. Reddy
Dataset Title: Preliminary Lithogeochemical Map Showing Near-Surface Rock Types in the Chesapeake Bay Watershed, Virginia and Maryland
Dataset Series Name: U.S. Geological Survey Open-File Report
Dataset Release Date: 2001
Dataset Release Place: Reston, Virginia
Dataset Publisher: U.S. Geological Survey
Version: 1.0
Data Presentation Form: Map
Online Resource:
Temporal Coverage
Start Date: 1995-01-01
Stop Date: 2001-12-31
Data Resolution
Latitude Resolution: 0.001 m
Longitude Resolution: 0.001 m
ISO Topic Category
MAPS Ancillary Description
Access Constraints None
Use Constraints Although all data released in this report have been used by the USGS, no
warranty, expressed or implied, is made by the USGS as to the accuracy of the
data and related materials and (or) the functioning of the software. Any use of
trade, product, or firm names is for descriptive purposes only and does not
imply endorsement by the U.S. Government
Data Set Progress
Originating Center
Data Center
Open File Services Section, Publications Warehouse, Eastern Region, Publications, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:
Dataset ID: USGS Open-File Report 01-187

Data Center Personnel
Phone: 703-648-6699
Fax: 703-648-6138
Email: jmwatson at
Contact Address:
U.S. Geological Survey
Eastern Publications Group
12201 Sunrise Valley Drive
City: Reston
Province or State: VA
Postal Code: 20192-0002
Country: USA
Distribution Media: online
Distribution Size: 7.0 megabytes
Distribution Format: Arc/Info export-interchange
Fees: None
Email: whorton at
Contact Address:
U.S. Geological Survey
National Center, MS926A
City: Reston
Province or State: VA
Postal Code: 20192
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-08-30
Last DIF Revision Date: 2018-02-05