Research Article
Genesis of the Early Indosinian Darongshan Granitoid in South China: Response to the Subduction of the Eastern Paleo-Tethys Ocean
Figure 4
Petrographic characteristics of hypersthene granite–porphyry samples from the Darongshan pluton: (a, b) photographs of quartz, K-feldspar, plagioclase, biotite, and garnet; (c, d) plagioclase develops polysynthetic twinning and a few weaker secondary changes; (e–h) plagioclase are encased in hypersthene. Mineral abbreviations: Q = quartz; Kfs = K-feldspar; Pl = plagioclase; Bt = biotite; Hy = hypersthene; Grt = garnet.
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