Lab 4

Question 1

Clastic (detrital) def

Answer 1

made up of ground up bits of other rocks

Question 2

Chemical (Non-detrital)

Answer 2

rocks made from dissolved chemicals in water precipitating out to solid form

Question 3

Well sorted

Answer 3

grains of similar size

Question 4

Poorly sorted

Answer 4

grains of differing sizes

Question 5

Common non-detrital examples

Answer 5

Limestone, chert, dolomite, coal

Question 6

Common detrital example

Answer 6

Breccia, Conglomerate, Sandstone, Siltstone, Mudstone

Question 7

Grain shape components

Answer 7

form, roundness and surface texture

Question 8

ZIngg

Answer 8

Grain form

Question 9

Powers

Answer 9

Grain roundness

Question 10

Grain form method of measurement

Answer 10

Measurement of ratios between lengths of grain axes

Question 11

Roundness method of measurement

Answer 11

Visual comparison of grains to a standard chart (Powers)