Yes, there are several case studies of successful geological research projects. Here are a few examples:

1. Deep Earth Carbon Degassing Project:
- In this project, scientists aimed to understand the amount of carbon dioxide (CO2) released from Earth's mantle into the atmosphere through volcanic activity.
- The research team conducted extensive fieldwork, collecting gas samples from volcanic regions around the world.
- They used advanced geochemical techniques to analyze the isotopic composition of the gases and estimate the total amount of CO2 released.
- The findings from this project have provided crucial insights into the global carbon cycle and its impact on climate change.

2. San Andreas Fault Observatory at Depth (SAFOD) Project:
- The SAFOD project aimed to study the San Andreas Fault in California to better understand earthquake processes and fault behavior.
- Researchers drilled a borehole nearly 3 kilometers deep into the fault zone and installed a variety of instruments to monitor seismic activity and rock deformation.
- The project involved collaboration between scientists, engineers, and drilling experts.
- The data collected from SAFOD has contributed to advancements in earthquake forecasting and improved our understanding of fault mechanics.

3. International Ocean Discovery Program (IODP):
- The IODP is a multinational research collaboration that aims to study Earth's history and dynamics through scientific ocean drilling.
- This program has successfully carried out numerous expeditions, retrieving sediment and rock samples from the seafloor.
- These samples have allowed scientists to reconstruct past climate changes, study the evolution of oceanic crust, and investigate the deep biosphere.
- The IODP has significantly contributed to our understanding of Earth's geological processes and has led to important discoveries.

4. Mars Science Laboratory (MSL) Mission:
- The MSL mission, conducted by NASA, was designed to explore the geology and climate of Mars using the Curiosity rover.
- The rover's instruments and cameras have provided detailed data on the Martian surface, including rock compositions, mineralogy, and evidence of past water.
- This project has helped scientists understand the geological history of Mars, including the presence of ancient lakes and the potential for past habitability.
- The MSL mission has paved the way for future Mars exploration and has expanded our knowledge of planetary geology.

These case studies highlight the importance of geological research projects in advancing our understanding of Earth and other planetary bodies. Through innovative techniques and interdisciplinary collaborations, scientists continue to make significant discoveries that shape our knowledge of the natural world.