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The most common mineral in the earth's crust |
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Definition
Silicon-Oxygen tetrahedron (SiO4)-4 |
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Mineral physical properties are dependant on: |
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Definition
Composition and structure |
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Minerals composed of a single pure element belong to the _______ group. |
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As a general rule metallic minerals possess _______. |
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The majority of minerals in earth's crust contain |
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Minerals are classified according to |
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Sulfide minerals are great ore minerals because... |
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Definition
metals are easily seperated from sulfur |
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Eight most common elements |
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Definition
O, Si, Ca, Fe, Al, Na, K, Mg |
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Melting takes place at convergent plate boundaries as a result of... |
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Definition
increasing depth and friction |
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An example of two minerals having the same chemical composition: |
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The earth's crust is mostly made of _____ elements |
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Sedimentary rocks are the dominant rock type at the surface because: |
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Definition
sedimentary rocks form at the earth's surface |
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A good example of a bioclastic rock is: |
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The melting of upper mantle rock tends to produce: |
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Violent or explosive style volcanic eruptions are associated with what kind of boundary? |
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Definition
continental-oceanic convergent (subduction) boundaries |
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Term
When visiting an erupting strato/composite volcano, you will need a hard hat because... |
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Definition
a bomb may hit you on the head. |
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Which state is essentially all volcano rock? |
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Example of an igneous rock that may contain no minerals... |
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The primary agent of sediment transport is... |
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Mount Saint Helens is a composite volcano within the _______ Mountains. |
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Term
Quartz and clay are the dominant minerals of clastic rocks because: |
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Definition
they are produced from the weathering of continental crust rocks |
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Example of a high energy environment |
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Definition
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Best indicator of energy depositional environment |
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The black color imparted on non-bioclastic sedimentary rocks is commonly caused by... |
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Definition
small amounts of organic matter |
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The presence of cross bed structures in quartz sandstone indicates... |
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The fact that Ohio has abundant coal, limestone, and halite deposits suggests past climates were much ____. |
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Rock associated with lowest energy environment |
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Difference between conglomerate and breccia |
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Quartz and clay are common in clastic sedimentary rocks because they are produced by... |
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Definition
weathering of crustal minerals |
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Term
The likely source of rock for the sediments that makeup arkose is |
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Which of the following rocks are often found in the same sequence (beds) of sedimentary rocks? |
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Definition
quartz, sandstone and shale |
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Term
Magma produced from mantle material tends to produce ____ rocks. |
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If plate techtonics ceased to operate as an earth process, volcanic activity along convergent boundaries would cease to occur. True or False? |
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A common mineral of felsic and intermediate rocks is |
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Rocks produced from volcanic ash are called |
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If magma cools and crystallizes relatively quick, you would expect the crystals or rock to be: |
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Rock common to Andes Mountains of western South America |
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The rock-forming minerals of igneous rocks belong to the group... |
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Igneous activity is associated with which types of plate boundaries? |
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The generally accepted age of the earth |
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Continental crust material compared to mantle materials is: |
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Definition
relatively light (less dense) |
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Term
The greatest concentrations of carbon are found: |
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Definition
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Term
When earth was first formed, what was life like? |
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Definition
no life; conditions too harsh |
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what is a reasonable rate for plate movement |
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should ice be considered a mineral? |
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Tectonic plates are able to move on account of _____ and Earth's _____. |
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Definition
gravity and internal heat |
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2 most abundant elements in earth's crust |
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most efficient way to move heat from the depths of the earth to the surface is |
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