C. shallow coast lines

Date: 2015-10-07; view: 569.

B. greywacke

A. medium-grained

B. no bigger than sand grain

Fig. 34 Conglomerate Fig. 35 Breccia

1. Most sedimentary rocks are formed from

A. eroded rocks

B. eroded particles

C. eroded sand

2. The size of particles in sedimentary rocks

A. bigger than sand grain

C. the same as sand grain

3. Geologists divide particles by size into

A. two groups

B. three groups

C. four groups

4. Lutites are

B. coarse-grained

C. fine-grained

5. An example of arenites are

A. sandstones

C. siltstone

6. Fine-grained rocks are

A. mudstone, shale, orthoquartzite

B. mudstone, shale, siltstone

C. shale, arkose, graywacke

7. Rudites can be consolidated into natural concretes called

A. conglomerates and breccias

B. clasts and conglomerates

C. breccias and clasts

8. Conglomerates is a Latin word which means

A. coarse

B. rubble

C. lumped together

9. Conglomerates accumulate in

A. shallow coastal waters

B. shallow lakes

10. Conglomerates contain

A. rounded fragments

B. coarse debris

C. poorly sorted fragments

11. Breccias is usually embodies in

A. natural cement-sand

B. solid rock

C. clay-rich matrix

12. Tillites are different from conglomerates and breccias because

A. clasts with slightly rounded edges

B. ice-eroded debris

C. poorly sorted fragments

3.2.2 Read the text once more and fill in the charts with the necessary information from part 1 and part 2.