A miogeocline is an area of sedimentation which occurs along the passive margin of a continent.
Modern examples include the continental shelf of the northern Gulf of Mexico and the Atlantic coast of North and South America.
The term was coined in 1966 by Dietz and Holden from the miogeosyncline concept of the outdated geosynclinal theory.
Dietz and Holden modified the term to miogeocline as the sedimentary deposits described were not synclinal in form.
[4] The ancient miogeoclinal sediments become attached to or accreted onto the adjacent continent following later continental collisions or orogenies.