The zircon U–Pb age of the porphyritic syenogranite at Tugurige is 276 ± 2 Ma.
A pyrite Re–Os isochron age of 268 ± 15 Ma was got for gold mineralization at Tugurige.
The gold mineralization and porphyritic syenogranite at Tugurige have an intimate genetic relationship.
The mineralization at Tugurige might be derived from the crust.