1. Lack of a Plausible Mechanism: Wegener couldn't provide a satisfactory explanation for how continents could move across the Earth's surface. He suggested that the continents plowed through the ocean floor like icebreakers, but this was met with skepticism because it seemed physically impossible given the immense forces required.
2. Missing Evidence of Past Connections: While Wegener pointed to the jigsaw fit of the continents and the presence of similar fossils and rock formations across continents, he couldn't provide sufficient evidence of the actual pathways or mechanisms for these connections.
3. Opposition from Established Scientists: Wegener was not a geologist by training, and his theory challenged the prevailing view of a static Earth. This led to resistance from prominent geologists who were already invested in the then-dominant theory of geosynclines.
4. Conflicting Geological Observations: Wegener's theory struggled to explain certain geological phenomena, like the presence of mountain ranges along continental margins. This raised doubts and fuelled opposition from geologists who were trying to fit the observed data into existing paradigms.
5. Lack of Scientific Acceptance: Wegener's ideas were initially considered more of a hypothesis than a fully-fledged theory. He lacked sufficient data and supporting evidence to convince a skeptical scientific community.
6. Limitations of Technology: The technology and scientific understanding at the time were not advanced enough to provide concrete evidence to support Wegener's claims.
It was only in the 1950s and 1960s, with the development of new technologies like sonar, paleomagnetism, and the discovery of seafloor spreading, that Wegener's ideas finally gained acceptance. These discoveries provided the missing mechanisms and evidence, confirming the movement of continents and leading to the development of the theory of plate tectonics.
