Earth's internal heat, fueled by radioactivity, provides the energy for plate tectonics and continental drift, mountain building, and earthquakes.

地球内部因放射而产生的热量为板块运动、大陆漂移、造山运动和地震提供了能量。

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Why this elaborate analogy with plate tectonics and continental drift?

为什么要煞费苦心地拿板块学说和大陆漂移来进行类比？

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In this paper, the author advocates a new dynamical theory of the Earth, attempting to unify plate tectonics and plume theories.

论述了一个旨在统一板块构造学说和地幔柱学说的地球动力学理论。

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Plate tectonics is the area of science that explains why the surface of the Earth changes and how those changes cause earthquakes.

VOA: special.2010.01.12

The Earth is just too unusual a place, they insisted, with its stable orbit, nearby moon, watery surface, plate tectonics and unique position in the galaxy.

FORBES: We've Got Company

This unusual approach gives Mr Pohl the freedom to delve into an extraordinarily diverse range of topics, including the operation of neutrino observatories, the physics of rainbows, the principles of plate tectonics, and how to search for fossils in your office's marble lobby.

ECONOMIST: Good sport

The latter is made up of six different instrument stations that gather data on plate tectonics, hydrothermal vents and deep sea creatures.

MSN: Seafloor observatory to keep close eye on Arctic Ocean