
This cross section was made on the basis of seismic profiling data as well
as geological surveys of exposures. Felsic plutonic rock (granitic
batholiths) underlie the uppermost layer and granite intrudes into the
layer, but the seismic profiling data suggests geologic body of which the
components are unknown under the nappe group layer. The border between the nappe
group and the felsic plutonic layer is provisional.
Simplified from Ito et al., 2009