Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
The period in which the American Upper Silurian system,containing the brine-producing rocks of central New York, was formed.See the Chart of Geology.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
