[en] This work is about the ultramafic rocks which its chemistry composition fluctuate since the basic to the ultra basic field and appear in the nascent of the Las Palmas stream near Las Canias and Cerro Chato district.
Original Title
Consideraciones sobre las rocas intrusivas ultramaficas del Arroyo Las Palmas (ex Cerro Chato o Las Canias) Durazno R.O. del Uruguay