Yes, you can use your knowledge of different geological disciplines in a single case study answer. Here is an example of how you can do so:

Introduction:
In this case study, we will explore the geological factors that contributed to the formation of the Grand Canyon. By utilizing knowledge from various geological disciplines, we can gain a comprehensive understanding of the processes involved.

Tectonics:
The Grand Canyon is located in the southwestern United States, primarily in the state of Arizona. It was formed by the Colorado River cutting through layers of sedimentary rock over millions of years. This process was influenced by tectonic activities in the region, specifically the uplift of the Colorado Plateau. The movement of tectonic plates caused the land to rise, creating an elevated plateau and exposing the layers of rock to erosion.

Sedimentology:
The layers of sedimentary rock found in the Grand Canyon provide valuable information about past environments and depositional processes. By studying the composition, grain size, and fossil content of these rocks, geologists can infer the ancient conditions under which they were formed. For example, the presence of marine fossils in certain layers suggests that the area was once covered by a shallow sea.

Geomorphology:
The unique and intricate landforms found within the Grand Canyon are a result of various geomorphic processes. Erosion by the Colorado River played a crucial role in shaping the canyon, but other factors such as weathering, mass wasting, and wind erosion also contributed. Understanding these processes helps us appreciate the complex geological history of the region.

Paleontology:
Fossils found in the Grand Canyon provide insights into the ancient life forms that inhabited the area millions of years ago. By studying the remains of plants, animals, and microorganisms, paleontologists can reconstruct past ecosystems and track the evolution of species over time. This interdisciplinary approach enhances our understanding of the geological processes that shaped the Grand Canyon.

Conclusion:
By integrating knowledge from various geological disciplines, we can develop a holistic understanding of the Grand Canyon's formation. Tectonics, sedimentology, geomorphology, and paleontology all contribute to unraveling the complex geological history of this iconic landmark. This case study highlights the importance of interdisciplinary research in advancing our knowledge of Earth's geological processes.