Which was an idea of dispute the theory of plate tectonics?

One major dispute regarding the theory of plate tectonics was the initial lack of a mechanism to explain how tectonic plates could move. Early proponents, such as Alfred Wegener, suggested continental drift based on the fit of continents and fossil similarities, but struggled to provide a convincing explanation for the forces behind this movement. It wasn't until the discovery of seafloor spreading and the understanding of convection currents in the mantle that the theory gained widespread acceptance. Critics also questioned the timing of plate movements and their relationship to geological features like mountain ranges and earthquakes.