Read the following phrases, write down the word. Read the word and find sentences with this word.
Date: 2015-10-07; view: 535.
EXERCISES
Fig. 29 Breccia
2.1 Match the terms with the definition
| 1. weathering | a. decrease in pore space of a sediment and reduction in volume / thickness |
| 2. deposition | b. a mineral between the sediment grains, forming an integral part of the rock |
| 3. diagenesis | c. mechanical wearing down of rock surfaces by friction of rock particles |
| 4. bedding plane | d. the sum of all processes that contribute mass to particles |
| 5. cross bedding | e. process of depositing sediments |
| 6. graded bedding | f. destructive natural process by which rocks are changed |
| 7. sedimentary rocks | g. movement of particles by air/water/ice or gravity |
| 8. sedimentation | h. process by which clastic sediments are converted into sedimentary rock by precipitation of a cement |
| 9. transportation | i. beds with grain size graded vertically |
| 10. cementation | j. process to lay sediments in wide horizontal beds |
| 11. cement | k. a division separating one bed from another |
| 12. abrasion | l. sands lay down at an angle between two bedding planes |
| 13. compaction | m. rocks formed by the consolidation of sediments settled out of water/ice/air and accumulated on the Earth's surface |
| 14. accumulation | n. process converting or changing sedimentary rocks |
1. to press / pack closely 12. to bond firmly together
2. fragments / small pieces 13. a thin crust of smth.
3. accumulate / collect in a mass
4. to change from one form to another
5. to make solid / to harden
6. to put / set down
7. to wear away by erosion
8. a trace of smth.
9. to add to smth.
10. a layer / stratum of rock
11. to become firmly pressed
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| ROCKS FROM SEDIMENTS | | | Complete the following sentences, by unscrambling the bolded words. Spell the word. Give its definition. |