hit me with a rock

This is the skull of our Lambeosaurus sp., Liberty. Here's the process of producing resin casts to gift to local establishments in the towns near where we do fieldwork.

Gaps in the bone were filled with Carbowax so rubber wouldn't snag. Underhangs were smoothed out with clay.

Rubber was poured layer by layer. After that a mother mold (a fiberglass cast over the top layer of rubber) was constructed.

Completed mold

1st and 2nd layers of resin poured into the mold

Expanding foam was applied after the resin set

HiPOD: The Richness of Layers

This stunning image features dozens of layers in the walls of a graben on the flanks of Arsia Mons. These layers could be yet unmapped volcanic units (lavas or ash deposits) and their identification can lead to a greater understanding of the history of this volcanic terrain. Material from this wall likely mantled the ice-rich deposits on the graben floor, and a 3D model can also characterize erosion patterns on the wall.

Enhanced color cutout is less than 1 km across; grayscale is less than 5 km. For full image including scale bar, visit the source link.

ID: ESP_077124_1725 date: 8 January 2023 altitude: 256 km

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