•  
  •  
 

Authors

Charles Keyes

Document Type

Research

Abstract

When the title Pennsylvanian was first proposed for the upper subdivision of the general Carbonic section of America it was with the express purpose of designating the widely known Coal Measures by a specific geographic name, and of implying a time value to the succession represented. In an unreasonable proneness of that day amounting almost to mania, of multiplying geographic and geologic terms and of giving new geographic titles to old lithologic units future contingencies of geologic taxonomy were entirely lost sight of, and the possibilities of some more refined nomenclature at no distant date were not taken into account.

Publication Date

1922

Journal Title

Proceedings of the Iowa Academy of Science

Volume

29

Issue

1

First Page

105

Last Page

106

Copyright

©1922 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.