shale: References & Edit History
More Articles On This Topic
Article Contributors
Primary Contributors
-
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Invalidated site: News Service of Polish Geological Survey - Mineralogy of shale rocks. | Jul 31, 2021 | ||
| Add new Web site: The Mineralogical Society - Mineral Composition of the Average Shale. | Oct 11, 2015 | ||
| Add new Web site: News Service of Polish Geological Survey - Mineralogy of shale rocks. | Oct 11, 2015 | ||
| Add new Web site: Minerals Education Coalition - Shale. | Oct 11, 2015 | ||
| Add new Web site: Buzzle.com - Shale Rock. | Aug 16, 2013 | ||
| Add new Web site: Fact Monster - Science - Shale. | Oct 18, 2011 | ||
| Media added. | Aug 07, 2009 | ||
| Added new Web site: Kevin C. Hartzog's - Shale. | Nov 09, 2008 | ||
| Added new Web site: James Madison University - Shale. | Nov 09, 2008 | ||
| Article revised. | Jan 25, 1999 | ||
| Article added to new online database. | Jul 20, 1998 |
View Changes:
Article History
Revised:
By: