QBB2023/QCB2033 SEPT 2020 QUIZ 1

Shale refers to a rock formed from:

• sand sized material

• plant remains

• clay minerals

• carbonate

Which one of the following is a biochemical sedimentary rock?

• sand sized material

• coal

• shale

• conglomerate

A clastic rock is:

• a rock formed from the cementation of transported grains

• a rock formed from evaporation of sea water

• transformed by heat into limestone

• transformed by pressure into limestone

Which one of the following features is NOT associated with sedimentary rocks?

• bedding

• foliation

• fossils

• all may be associated with sedimentary rocks

Which of the following types of sediments are most abundant?

• coarse clastics

• fine clastics

• chemical

• biochemical

The tendency for variations in current velocity to segregate sediments on the basis of particle size is called _____.

• lilthification

• compaction

• metamorphism

• sorting

Which of the following types of currents can transport sand grains?

• rivers

• wind

• ocean waves

• all of the above

What is the right answer for box A?

• Breccia

• Chert

• Shale

• Halite

In which of the following sedimentary environments would you expect the sand deposits to be poorly sorted?

• alluvial

• desert

• beach

• glacial

Which of the following lists is written in order of decreasing particle size?

• siltstone, sandstone, conglomerate

• conglomerate, sandstone, siltstone

• sandstone, conglomerate, siltstone

• sandstone, siltstone, conglomerate