stripes
Occurrence number:
175-00-001
Country:
Uruguay
Region:
Lavalleja
Location:
Longitude: -54.68, Latitude: -34
Carbonatite:
No
Located 5 km northeast of La Mariscala, Cerro Vicheo is a syenite plug approximately 1 km in diameter with a system of radial trachyte dykes extending up to 7 km distance. Sodic ferromagnesian minerals are present in the trachytes but no further petrographic details have been obtained.
Age:
120 Ma.
References:
J. Bossi, personal communication, 1985
Location: