The mineral composition of a rock reflects the physical environment and geologic history where a rock formed.
Rock form in a variety of geologic setting ranging from locations on or near the earth surface, deep underground, or even in outer space.
Relative dating excerice
Events include: rock layers, folding or tilting events, faults, igneous intrusions, etc.
Place the events from the cross-section above in order by letter.
Oldest: ___ Youngest Which rock letters are sedimentary? ____ Why ____ Place the events from the cross-section above in order by letter.
The diagram above shows an erosional surface (squiggly line) which rocks were affected by the event?
What are "rocks" and "minerals" - explain the differences. Describe essential concepts of chemistry related to earth materials. What is the chemical and mineral composition of the Earth's crust? List some common silicate and nonsilicate minerals. Describe and illustrate the "rock cycle" as it relates to processes and products. Describe basic geologic principles for interpreting landscape forming processes. On Earth, more than 4,000 minerals have been identified, however, of those fewer than 2 dozen are common minerals in Earth's physical environment (Figure 1-1 shows common rock-forming minerals).