Burnt dirt
I recommend this blog to my readers. It sprang from a joke and thus is a lot of fun. Melinda only has 3 or 4 other blogs on the go, so I suggest you keep her busy by submitting your own dirt pictures for her consideration (she welcomes submissions). Furthermore, dirt is very broadly defined as you can see here. Thanks Melinda!
From my friend at Burnt Embers comes a photo of burnt dirt, and a broken toy:
burnt embers 
Your archaeologist readers should have lots of these.
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Hi micro mouse – welcome to my blog. I reckon I could keep Melinda’s blog stocked just with macro photos of archaeologists fingernails, and creases on their hands and faces.
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