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Microscopic examination of a lung biopsy shows spherules.What is the etiology of the symptoms?
Unconformity
A boundary between underlying and overlying rock strata representing a significant break or gap in the geologic record; an unconformity represents an interval of nondeposition or erosion, commonly accompanied by uplift.
Intrusive Contact
The boundary between intrusive igneous rocks and the surrounding country rock into which they have intruded.
Axial Surface
A surface that connects the hinge lines in a fold.
Overturned Anticline
A geological fold where the layers have been tilted past vertical, making the older layers overlie the younger ones.
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