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Related to Autolith: xenolithic
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  • noun

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(geology) a piece of rock of different origin from the igneous rock in which it is embedded

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Igneous structures sometimes interpreted as palaeo-convective indicators include cross-beds, trough structures, foliation, and autoliths (e.
Autoliths of low-density roof cumulates hosted in high-density floor cumulates may have been transported downwards by convective flow (e.
The stone is fairly uniform in appearance, having only occasional small (a few centimetres) dark knots (from xenoliths and autoliths to inclusions of black mineral aggregates; Fig.
3) and autoliths are common at places abundant and some showing the effect of baking.
Some spheroidal weathering and solution pits occur at places and there are local enclaves of xenoliths and autoliths.