@inproceedings{inproceedingsa3ce3876,
title   = {Supergene calcite at the botton of a weathering profile over carbonatite at juquia, sao paulo, brasil: isotopic composition and genesis},
author = {Almeida, Teodoro Isnard Ribeiro de and Alcover Neto, Arnaldo and Toledo, Maria Cristina Motta de and Moreira, M},
year = {1994},
publisher = {Universidad de Concepcion},
booktitle   = {Congreso Geologico Chileno}
}