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What do scientists now know about earth that would have answered the scientists who rejected wegeners theory?
Scientists now know about plate tectonics, which explains how Earth's outer shell is divided into large plates that move and interact with each other. This understanding supports Wegener's theory of continental drift, as it provides a mechanism for the movement of continents over time. Additionally, evidence from ocean floor mapping, seafloor spreading, and magnetic striping further supports the concept of plate tectonics.
What evidence can be provided to support the claim that Pangaea did not exist?
The evidence that supports the claim that Pangaea did not exist includes the distribution of fossils, rock formations, and the movement of tectonic plates. Fossils of similar species found on different continents suggest that they were once connected. Additionally, the alignment of rock formations and the movement of tectonic plates provide further evidence that the continents were not always together as one supercontinent.
What do scientists study to get information about tectonic plates?
Scientists study seismic waves, GPS data, and magnetic anomalies to gather information about tectonic plates. By analyzing these sources of data, scientists can better understand the movement and interactions of tectonic plates.
What does the asthenosphere cause?
Scientists speculate that the movement of tectonic plates is created by the movement of the rigid lithosphere on the asthenosphere.
The movement of tectonic plates is inferred by many scientists to be driven by?
Convection currents in the asthenosphere
What evidence do scientists have to support the relationships of the earths parts?
a. seismic waves b. volcanoes c. earthquakes d. rocks
Paleomagnetic evidence was used to confirm which of the following hypotheses?
Paleomagnetic evidence was used to confirm the theory of plate tectonics. By studying the alignment of magnetic minerals in rocks, scientists were able to support the idea that continents have moved over time, providing evidence for the movement of tectonic plates.
What do scientist use to measure the rate of tectonic plate movement?
Scientists use GPS technology to measure the rate of tectonic plate movement. GPS receivers on different plates can track their movement relative to each other to provide information on the speed and direction of plate motion.
Why do scientists think there are cracks in the lithosphere?
Scientists think there are cracks in the lithosphere because of the movement of tectonic plates. As these plates shift and interact, they create stress that can lead to the formation of fractures or faults in the lithosphere. These cracks play a crucial role in the movement of Earth's tectonic plates and the occurrence of earthquakes.
What are faults evidence of?
Faults are evidence of tectonic processes and the movement of the Earth's lithospheric plates. They indicate where stress has built up and been released through fracturing, often leading to earthquakes. The characteristics and patterns of faults can reveal the history of geological activity in an area, helping scientists understand tectonic forces and the evolution of landscapes. Additionally, faults can influence resource distribution, such as groundwater and minerals.
What evidence do scientists have to support the idea that the continents were once one large land mass?
Scientists support the idea of a supercontinent called Pangaea through evidence such as matching coastlines, similar rock formations, and identical fossils found on different continents. Additionally, the movement of tectonic plates, as recorded by magnetic anomalies in the ocean floor, provides further support for the theory of continental drift.
How does the age of the sea floor show that the tectonic plates move?
The age of the sea floor provides evidence for tectonic plate movement through the process of seafloor spreading. As magma rises at mid-ocean ridges, it cools and solidifies to form new oceanic crust, which is youngest at the ridge and gets progressively older as you move away. By dating the rock samples, scientists can map the age of the sea floor and observe how older crust is pushed away from the ridge, demonstrating the movement of tectonic plates. This pattern supports the theory of plate tectonics, illustrating how plates diverge, converge, and interact over geological time.
