Fold systems
-
Description:PDF fileMIME type:application/pdfFile Size:236.9Kb
Author
South Carolina Geological Survey
Subject
Folds (Geology)
Anticlines and synclines can take on many different geometries. They can be either open tight, or isoclinal in shape. The tighter the folds, the more intense the stress (compression) that caused folding. Folds can also be symmetric or asymmetric, upright or overturned, curved or cornered. A fold “knocked” on its side is called recumbent. Folds don‛t have to be perfectly horizontal, often folds are not, because of twisting and tilting, and they can plunge into the Earth at an angle. Folds occur on all scales. Some are small enough to be contained in a hand-held rock specimen. Others cover large areas, so large that they can be seen from miles away. When we slice into a fold at a “road slopecut” for a highway, fold types are often easily identified by the distorted marker horizons. The fold patterns observed along the surface are also clues to the existence and type of fold that may be beneath the surface.
Collections
Date
2005Metadata
Show full item recordDate Accessioned | 2017-02-17T15:26:05Z |
Date Available | 2017-02-17T15:26:05Z |
Item Format | application/pdf |
Media Type | Document |
Item Language | English |
Publisher | South Carolina State Library |
Digital Collection | South Carolina State Documents Depository |
Rights | Copyright status undetermined. For more information contact, South Carolina State Library, 1500 Senate Street, Columbia, South Carolina 29201. |
Type | Text |
Digitization Specifications | This South Carolina State Document was either saved from a document available publicly online in PDF format or converted to PDF using Adobe Acrobat DC. |