Across
- 2. The upper mantle of the earth is composed largely of this.
- 3. Transform fault is a ____________ fault.
- 6. Permian is a:
- 9. This mineral belongs to the cubic system.
- 10. It is Lower Gondwana flora.
- 12. Isotacy involves ________ in continental belts.
Down
- 1. This is a plutonic rock consisting only of plagioclase, pyroxene and hornblende as major minerals.
- 4. Fossils of burrows and footprints are known as _____ fossils.
- 5. In this mass extinction period trilobites went extinct.
- 6. varves are typical products of ___________ lakes.
- 7. This is the sandstone that contains less than 15% matrix.
- 8. This rock typically occurs in a ductile shear zone.
- 11. The presence of a pallial sinus in a bivalve shell indicates its ________ habit.