Figure 55

Experimentally deformed quartzo-feldspathic rocks

Figure caption

Experimentally deformed quartzo- feldspathic rocks

starting material & regime1 / regime 2 / annealing & melting

55

Enfield aplite (EA) starting material; ~30% quartz, ~35% microcline, ~35% oligoclase, and ~1% biotite.

Enfield aplite (EA) starting material. This material comes from aplite dikes cutting the Black Mountain granite in Enfield, Vermont. The grain size is somewhat variable but averages ~200 µm. Quartz constitutes ~30%, microcline ~35% and oligoclase ~35%; there is about 1% biotite and magnetite. Because the two feldspars show very similar behavior in experimental deformation, this rock can be well approximated as a continuous stress-supporting matrix of feldspar with isolated, dispersed grains of quartz.

		Experimentally deformed quartzo-feldspathic rocks
		Figure caption

	Experimentally deformed quartzo- feldspathic rocks	starting material & regime1 / regime 2 / annealing & melting


55		Enfield aplite (EA) starting material; ~30% quartz, ~35% microcline, ~35% oligoclase, and ~1% biotite. Enfield aplite (EA) starting material. This material comes from aplite dikes cutting the Black Mountain granite in Enfield, Vermont. The grain size is somewhat variable but averages ~200 µm. Quartz constitutes ~30%, microcline ~35% and oligoclase ~35%; there is about 1% biotite and magnetite. Because the two feldspars show very similar behavior in experimental deformation, this rock can be well approximated as a continuous stress-supporting matrix of feldspar with isolated, dispersed grains of quartz.