Quartzite and marble are nonfoliated metamorphic rocks with similar appearances, which often confuse introductory geology students. Devise an experiment to differentiate between these two samples
What will be an ideal response?
Answer: Quartzite often forms from quartz sandstone and contains the mineral quartz, which would scratch a glass plate. Marble contains the mineral calcite, which has a hardness of 3 and reacts with hydrochloric acid. Quartzite would also scratch marble.
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The first modern attempt to formulate the needs of the city as a whole was the work of Le Corbusier
Indicate whether the statement is true or false.
When Ra decays by emitting an alpha particle, what is the atomic number of the resulting nucleus? What is the resulting atomic mass?
A) atomic number = 86; atomic mass = 222 B) atomic number = 87; atomic mass = 226 C) atomic number = 86; atomic mass = 224 D) atomic number = 87; atomic mass = 224
As you move from the Appalachian mountains towards the Atlantic Ocean, the depositional layers of sediments
beneath you ____. a. remain a constant thickness b. gradually become thicker c. gradually become thinner d. rapidly become thicker e. rapidly become thinne
Which of the following pairs of index minerals do not overlap in metamorphic grade?
A) chlorite and pyroxene B) biotite and garnet C) staurolite and kyanite D) amphibole and sillimanite