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40 Ar/ 39 Ar ages of blueschist facies pelitic schists from Qingshuigou in the Northern Qilian Mountains, western ChinaNARA Subscribed
Pelitic schists from Qingshuigou in the Northern Qilian Mountains of China contain mainly glaucophane, garnet, white mica, clinozoisite, chlorite and piemontite. Isotopic age dating of these schists provides new constraints on the formation of the high‐grade blueschists at Qingshuigou. White mica 40 Ar/ 39 Ar ages range from 442.1 to 447.5 Ma (total fusion age of single grain) and from 445.7 to 453.9 Ma (integrated age of whit...
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