Sketch, Graph and Describe for Igneous Rock and Volcano
by ella | Mar 29, 2024 | Writing
Description
- Explain how a mineral is different than a rock. Explain how you would identify a mineral. Include three properties you would look for and three tests you could perform. Contrast a silicate mineral to a non-silicate (carbonate or organic) mineral in terms of composition, structure, and how it forms.
- Sketch, label, and describe a tetrahedron of a silicate mineral and Bowens Reaction Series. Explain how the arrangements of tetrahedrons and the chemical composition change with temperature. Give a specific mineral example of each arrangement. Lastly, state why these arrangements are important to geologists.
- Sketch and label a cross-section of an oceanic divergent boundary (mid-ocean ridge), and describe why melting occurs along this type of boundary. Include a pressure-temperature diagram, and use it to explain how magma is generated. Lastly, state the types of rocks you would expect to find at an oceanic divergent plate boundary and the attributes (texture and composition) that define them.
- Sketch and label a cross-section of an oceanic-continental convergent boundary, and describe how melting occurs along this type of boundary. Include a pressure-temperature diagram, and use it to explain how magma is generated. Lastly, state the types of rocks you would expect to find at an oceanic-continental convergent plate boundary and the attributes (texture and composition) that define them.
- Sketch, label, and describe a cross-section through a shield volcano. Include the shape and size and how magma is generated. Be sure to include the composition of the magma, the style of eruption, and the hazards it poses. Include the source of the magma and the tectonic setting.
- Sketch, label, and describe a cross-section through a composite volcano. Include the shape and size and how magma is generated. Be sure to include the composition of the magma, the style of eruption, and the hazards it poses. Include the source of the magma and the typical tectonic setting.
