OPM Disability Retirement: Sedimentary Structures

In interpreting geological formations by natural deposits involving complex strata of ahistorical significance, we are better able to conceptualize the environment, the impact of changes by weather, temperature vicissitudes, and organic alterations whether man-made or neutral in their deliberations. River flows and their swirls of changing directions; droughts, sudden floods, or the soft and natural flow of a forming inlet; these all impact and influence the sedimentary structures which form over time, unnoticed to an ahistorical perspective. […] Read More …