Active Geologic Processes along Calvert Cliffs
The geology and hydrology along the Calvert Cliffs drives active oxide mineralization. As water passes through the upper orange, sandy layers, transitional metals such as iron and manganese are leached out. Mineral-saturated fluids accumulate upon contact with the lower silt and clay beds, allowing for the formation of oxide minerals and ironstone. This active geologic process impacts fossil preservation, cliff erosion, and modern coastal habitats. My research aims to document these processes and their varied consequences. Preliminary chemical analyses have revealed a wide variety of iron and manganese oxide minerals. A major question that remains is the potential role of microbial mediation during oxide mineralization. These geologic processes may even serve as an analog for understanding geologic processes on Mars.