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《Acta Petrologica Sinica》 2009-08
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Petrology and P-T conditions of stilpnomelane schist in the Yilan district, Heilongjian Province.

KONG FanMei, LI XuPing** , JIAO LiXiang, WANG ZeLi and WU QianQian Institute of Geological Science & Engineering,Shandong University of Science and Technology,Qingdao 266510,China  
Stilpnomelane schist contains mineral assemblage of stilpnomelane + chlorite + phengite + albite + tremolite + quartz + K-feldspar ±biotite in Heilongjian complex, Yilan district. Mineralogical and petrological studies show that stilpnomelane schist formed under P-T conditions of 250~400℃ and 6~9kbar. Brown stilpnomelane occurs in the form of fascicular or radial aggregates. Stilpnomelane schist was formed in the process of Jiamusi block westward subduction with Songnen block during post-stage blueschist metamorphism, and was a product of geological deformation environment with pressure slightly decline and temperature slightly increase when blueschist facies transforms into greenschist facies.
【Fund】: 中国石油化工股份有限公司前瞻性科技项目《中国北方中新元古代岩相古地理研究与编图》(YPH08060)资助
【CateGory Index】: P588.344
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