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0170 Southern Tibet : vol.5
Southern Tibet : vol.5 / Page 170 (Color Image)

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doi: 10.20676/00000263
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OCR Text

of the hornblende-granite is not known with certainty; it has been shown by General Mc MAHON
to be older than the typical biotite-granite and was found in Tibet to be either late Cretaceous
or post-Cretaceous. There is, therefore, no great difference in age between these granites and
all three may possibly have been derived, by a process of differentiation, from the same
magma, the hornblende-granite solidifying first, the biotite-granite next, and the tourmaline-
granite last of all.»

Aus dem schon Gesagten ergibt sich, dass die Granite des Transhimalaya aus denselben
Gründen wie die Granite des Himalaya als spät- oder postcretaceisch angesehen werden können.