@inproceedings{inproceedings224c6d1f, title = {Preliminary Rb/Sr geochronology of calc-alkaline dykes from the Tandilia system, Buenos Aires province, Argentina}, author = {Echeveste, H and Ribot, A and Teixeira, Wilson and Fernandez, R and Girardi, Vicente Antonio Vitorio and Piccirillo, E M and Bellieni, G and Jacumin, M}, year = {1997}, publisher = {FAPESP/CNPq/CPRM}, booktitle = {South American Symposium on Isotope Geology} }