Sonju Lake Intrusion & Finland Granophyre
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Sonju Lithostratigraphy
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| The Sonju Lake Intrusion is overlain by the Finland
Granophyre. Contact relations between the two bodies are not well
exposed and rock compositions are generally transitional and oscillatory
across the contact zone. The units in the map below are from field
mapping by Miller et al. (1993). Students assign their own names to
these rock units based on their petrographic studies. Stratigraphic
heights are given in meters above basal contact of the Sonju Lake Intrusion. |
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to download a high-Resolution JPEG file of this column. |
