this photo last May as a "teaser," but I think it's worth revisiting in context. The chilled margins of the dike under the hammer are quite apparent in this photo, and give visiting geologists the ability to relatively date these dikes- that is, determine which are younger and which are older, relative to each other. In the case above, this dike is younger than the material on either side, as shown in the annotation below.
FlashEarth Location entirely conjectural. Indexed
Is This Your Hat?
2 years ago