The Journal of GeologyVolume 68, Number 1 Previous article No AccessBack MatterPDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookXLinkedInRedditBlueskyEmailPrint SectionsMoreDetailsFiguresReferencesCited by The Journal of Geology Volume 68, Number 1Jan., 1960 Article DOIhttps://doi.org/10.1086/626646 PermissionsRequest permissions Views: 1Total views on this site Copyright 1960 University of ChicagoPDF download Crossref reports no articles citing this article.
