👉 The Morrison Fluid is a type of fine-grained sedimentary fluid that played a crucial role in the deposition and preservation of the iconic fossil-rich rock layers of the Morrison Formation, a geological formation spanning parts of Colorado, Wyoming, Utah, and New Mexico in the western United States. These fluids, rich in clay minerals and organic matter, were transported by water and deposited in low-energy environments like floodplains and lakeshores. Their presence influenced the mineral composition of the sediments, promoting the formation of authigenic minerals (like iron oxides and carbonates) that helped preserve delicate fossils. The Morrison Fluid also contributed to the creation of distinctive "floodplain mudstones" and "lacustrine shales," which are key to understanding the ancient ecosystems that thrived during the Late Jurassic period, when dinosaurs like Allosaurus and Apatosaurus roamed.
