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本文提供了77个石榴石、辉石、角闪石、黑云母和斜长石等单矿物能谱和湿化学分析资料,研究了各种矿物对的分配系数。用二辉石地质温度计估算的变质作用温度为770—860℃,用其他矿物对估算的温度多数在二辉石温度计获得的温度范围内。用Wood的石榴石—斜方辉石地质压力计和Newton—Perkins以及Wells石榴石—斜方辉石—斜长石地质压力计公式估算的变质作用压力为(8—10)×10~8Pa,地热梯度为24.6—27.5℃/km,属低—中压型麻粒岩相。
In this paper, 77 single-mineral spectra and wet-chemical analysis data of garnet, pyroxene, hornblende, biotite and plagioclase are provided, and the partition coefficients of various mineral pairs are studied. The metamorphic temperature estimated with the pyroxene geothermometer is 770-860 ° C and most of the temperatures estimated with other minerals are within the temperature range obtained by the diatomaceous pyrometer. The metamorphic pressure estimated by Wood’s garnet-orthopyroxene geostress and Newton-Perkins and Wells garnet-orthopyroxene-plagioclase geomagnetic pressure gauge is (8-10) × 10 ~ 8Pa, Geothermal gradient of 24.6-27.5 ℃ / km, is a low-pressure granulite facies.