Exam 17: Glaciers and Glaciation

Fossil insects are sometimes preserved in what material?

What rock type would be made mostly from particles 0.5 to 2.0 mm with a few larger rounded grains >4 mm in size?

Which sediment gets lithified to become mudstone?

How wide is a typical continental shelf?

Which indirect fossil features are most likely to cut across and disrupt bedding (stratification) in the host sedimentary rock?

Black shales contain abundant ______and were probably deposited in a/an ________environment.

Which type of sand depositional environment would probably have the best degree of sorting?

Which of the following is fossilized resin from evergreen trees?

What proportion of sedimentary rocks do the mudstones and shales comprise?

What rock type would be made from angular rock fragments >70 mm in size?

Which one of the following is not a chemical sedimentary rock or evaporite?

Nonclastic textures are most common in which of the following sedimentary rocks?

Which type of sediment undergoes the most compaction as it lithifies to sedimentary rocks?

Which type of sandstone contains abundant detrital feldspar grains?

What do orange red or brown colours indicate in sedimentary rocks?

A succession of beds where each is a tabular massive layer with more coarse material at its base and fines near the top is called_______ .

How does a sediment become transformed into a sedimentary rock?

Shales are distinguished from other mudrocks by their__________ .

What setting is suggested by a circular region about 40 km across with predominant shales, a thick sandy delta sequence at one end, and both of them surrounded by a thin rim of sandy, well sorted beach deposits?

What rock type would be made from rounded grains of various rock types ranging from 1 to 250 mm?