Concordant coasts
A concordant coast is a coastline that follows the trend of the underlying geological structures, such as the strike of a rock formation. This means that the coastline is more or less parallel to the major geological features of the area. Concordant coasts are often formed when the coastline is formed by a process of erosion, such as wave erosion or glacial erosion, which follows the path of least resistance.
Discordant coasts
A discordant coast is a coastline that cuts across the trend of the underlying geological structures. This means that the coastline is not parallel to the major geological features of the area. Discordant coasts are often formed when the coastline is formed by a process of faulting or folding, which creates a sudden change in the topography.
The following are some examples of concordant and discordant coasts:
* Concordant coasts:
* The coastline of the Gulf of Mexico in the United States
* The coastline of the Baltic Sea in Europe
* The coastline of the Great Barrier Reef in Australia
* Discordant coasts:
* The coastline of California in the United States
* The coastline of Chile in South America
* The coastline of Norway in Europe
It is important to note that the terms concordant and discordant coasts are relative terms, and there is no strict definition of what constitutes a concordant or discordant coast. The classification of a coastline as concordant or discordant depends on the scale at which the coastline is being examined. For example, a coastline that may appear concordant at a large scale may appear discordant at a smaller scale.
