The reason why some exposed parts of the boulder are darker than others.
Answer to Problem 1FQ
The darker areas may have undergone weathering and thereby generate new, darker compounds such as iron oxides, while the lighter areas are exposed to the surface more recently following the removal of weathered products.
Explanation of Solution
Weathering can be defined as the process that involves the breakdown of rock material into smaller particles at or near the surface of the Earth. The process of weathering takes place when a rock is exposed to an environmental condition that supports weathering. It can be a change in pressure, temperature, or substances mainly water. As a result of weathering, the rocks are weakened and broken. These broken particles are known as clasts, and it can be small or large. Continuous weathering that takes place on detached fragments breaks them into smaller particles, and thus they become susceptible to other exogenic processes such as erosion, transportation, and deposition.
Some of the exposed parts of boulders are darker than others due to the fact that the areas have undergone weathering, and new, darker compounds such as iron oxides are formed. The lighter areas are the parts of boulders that are exposed to the surface recently after the removal of weathered products.
Want to see more full solutions like this?
Chapter 12 Solutions
Fundamentals of Physical Geography
- PLEASE HELP ASAP On Figure 3.8, outline the zone of earthquakes. Draw a line in Figure 3.8 at the depth of 100 kilometers to indicate the top of the asthenosphere - the zone of partly melted and weak Earth material. Label the line top of the asthenosphere.arrow_forwardHexagonal system. Indicate the expression that gives the volume of the “larger cell” and the volume of the “smaller cell”.arrow_forwardHexagonal system. Indicate the volume of the “larger cell” and the volume of the “smaller cell”.arrow_forward
- f the same amount of sunlight was hitting an area of land and an area of water, which area would heat more rapidly? The land would heat more rapidly. The water would heat more rapidly. They would both heat at about the same rate It would depend on the characteristics of the water and land.arrow_forwardThe Atlantic and Gulf Coastal Plain physiographic province has which of the following characteristics? Many fertile swamps and marshes Low, rolling hills Folding, uplift, and faulting Small mountain ranges and flat valleysarrow_forwardSuppose you are visiting the equator. It is noon. The Sun is at its highest point in the sky for the day, which is directly over your head. You call a friend on the phone, and she says it is also noon where she is but the Sun is not directly overhead at that location and time. It is a little lower in the sky for her. Compare the longitude and latitude of your location with the longitude and latitude of your friend's location. Are they alike or different? How do you know?arrow_forward
- Provide examples to illustrate the effects of glacier and ice sheet melting on climate globally and regionally. Use words to illustrate any feedback mechanisms between melting ice sheets and the climate.arrow_forwardUse diagrams and word explanations to show how excess heat from the tropics is transferred to higher latitudes (discuss cells and ciruclations) . Additionally, show how the broadening of the Hadley Cell, caused by rising greenhouse gases, could affect surface climate in subtropical and mid-latitude regions.arrow_forwardExplain why the Earth is in not in radiative equilibriumarrow_forward
- Applications and Investigations in Earth Science ...Earth ScienceISBN:9780134746241Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSONExercises for Weather & Climate (9th Edition)Earth ScienceISBN:9780134041360Author:Greg CarbonePublisher:PEARSONEnvironmental ScienceEarth ScienceISBN:9781260153125Author:William P Cunningham Prof., Mary Ann Cunningham ProfessorPublisher:McGraw-Hill Education
- Earth Science (15th Edition)Earth ScienceISBN:9780134543536Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSONEnvironmental Science (MindTap Course List)Earth ScienceISBN:9781337569613Author:G. Tyler Miller, Scott SpoolmanPublisher:Cengage LearningPhysical GeologyEarth ScienceISBN:9781259916823Author:Plummer, Charles C., CARLSON, Diane H., Hammersley, LisaPublisher:Mcgraw-hill Education,