QUESTION 1 (a) List the 10 minerals in the Moh’s hardness scale, from the softest one to the hardest one. (b) According to the definition of minerals, point out which one is a mineral among the following ones (quartz, water, ice, coal, petroleum). (c) Indicate the differences between color and streak, using magnetite, hematite and limonite as examples.
QUESTION 1
(a) List the 10 minerals in the Moh’s hardness scale, from the softest one to the hardest one.
(b) According to the definition of minerals, point out which one is a mineral among the following ones (quartz, water, ice, coal, petroleum).
(c) Indicate the differences between color and streak, using magnetite, hematite and limonite as examples.
(d) State the difference between cleavage and fracture of minerals, using quartz and mica as examples.
QUESTION 2
(a) What is the theory of plate tectonics?
(b) State the two (2) types of plates and three (3) types of boundaries.
(c) How many percent do sedimentary rocks take in the crust (volume) and in the continents area?
(d) What are major mineral components in sedimentary rocks?
QUESTION 3
(a) Define the following terms with sketches where appropriate:
i) Rock deformation
ii) Strike
iii) Dip
iv) Dip angle
(b) What is the difference between normal and reverse faults? Show diagrams
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