%0 Journal Article %T Origin and preservation of stratigraphically repeated, glacially striated surfaces in the Itarar¨¦ Subgroup (Late Paleozoic) in Palmeira, State of Paran¨¢ %A TROSDTORF JUNIOR IVO %A ROCHA-CAMPOS ANTONIO C. %A TOMIO ALEXANDRE %A SANTOS PAULO R. %J Anais da Academia Brasileira de Ci¨ºncias %D 2001 %I Academia Brasileira de Ci¨ºncias %U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000300024