No. 90 - Geologic Block Model

**Geologic block model of cross-cutting relationships & inverted topography.** This block features a stratified sequence of cherry, green poplar, purpleheart, and maple that is cut by a number of geologic structures, including normal faults, reverse faults, thrust faults, and dikes. Resolving the order of cross-cutting relationships in this block is a fun challenge for even the most seasoned scientist! This sequence was then capped by a basalt lava flow made from black walnut that erupted out of the base of a small cinder cone. The flow shielded underlying rocks from erosion that eventually resulted in the development of an inverted topography. Wood Model by Kurtis C. Burmeister * etsy. com/shop/StrainShadowDesigns * instagram.com/StrainShadowDesigns * twitter.com/StrainShadow Photogrammetric Model by Ryan J Hollister.