Affected by or showing the outward slope or tilt of rock layers, as in geological formations where erosion has exposed the edges of underground strata.
From 'basset,' a mining and geological term from French 'basset' meaning 'the exposed edge of a mineral vein.' The past participle form indicates a geological condition or process.
Miners used to follow 'basseted' veins of ore upward into mountains—recognizing where rock layers peeked out at the surface was the original method of prospecting for metals before modern geology.
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