@inproceedings{sgem2015s1026,
  title = {GOLD IN LOWER ORDOVICIAN IRONSTONES OF VALONGO ANTICLINE: CONTROL BY VOLCANISM, ALGAE AND STROMATOLITES.},
  author = {Helena Couto},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING},
  year = {2015},
  pages = {},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2015/b11/s1.026}
}