The rigid crust and uppermost mantle form
- The consists of both the crust and uppermost mantle forming a relatively cool rigid shell
- The crust and uppermost mantle together form an upper rigid layer called the
- The crust and rigid upper part of mantle
- The crust of earth
- This rigid layer is made up of crust and the upper mantle
- The crust and upper mantle form the
- The crust and the upper layer of the mantle together make up a zone of rigid brittle rock called