exsolution lamellae

exsolution lamellae

[¦ek·sə′lü·shən lə′mel·ē]
(geology)
Layers of sedimentary rock that solidify from solution by either precipitation or secretion.
References in periodicals archive ?
The transparency is due to the lack of exsolution lamellae in some samples.
The miscibility gap is narrower at high temperatures, so that under slow cooling conditions, early formed augites and low-Ca pyroxenes develop exsolution lamellae as low-Ca pyroxene and augite (respectively) are expelled from the structures.