In the geomorphological classification of coasts by D.W. Johnson, which of the following terms describes a coastline formed primarily by the submergence of a mountainous region characterized by numerous elongated, parallel ridges and valleys running transverse to the coast?

💡 Solution & Explanation

A Dalmatian coast, also known as a longitudinal coast, develops when parallel topographic ridges and valleys are submerged by rising sea levels, leaving the crests of ridges standing as offshore island chains parallel to the mainland shore. Ria coasts form from the submergence of river valleys running perpendicular to the coast. Fiord coasts feature drowned glacial troughs with steep rock walls. Marine terraces represent emerged coastal platforms uplifted relative to sea level.