Why was the geosyncline model inadequate to explain the origins of geological structure?

The geosyncline model was inadequate because it oversimplified the complex processes of sedimentation and tectonics, suggesting that large basins formed solely through the accumulation of sediments in depressions. It failed to account for the dynamic interactions of tectonic plates, which can create various geological features through folding, faulting, and uplift. Additionally, the model could not adequately explain the formation of mountain ranges and other geological structures that arise from continental collisions and subduction zones. As a result, it was eventually replaced by more comprehensive theories, such as plate tectonics, that better explain the origins of geological features.