BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA VOL. 51, PP. 1729-1756, 4 PLS.. 6 FIGS. NOVEMBER 1, 1940 WISCONSIN GLACIATION OF NEWFOUNDLAND BY PAXIL MAC CLINTOCK AND W. H. TWENHOFEL CONTENTS Page Abstract....................................................................................................................................... 1730 Statement of the problem....................................................................................................... 1731 Acknowledgments..................................................................................................................... 1731 Geologic and topographic setting......................................................................................... 1732 Complete glaciation during Wisconsin time..................................................................... 1732 General statement............................................................................................................ 1732 Long Range Plateau at Tompkins.............................................................................. 1732 Long Range Plateau at South Branch....................................................................... 1733 Anguille Mountains at South Branch......................................................................... 1733 Long Range Plateau at Flat Bay Brook................................................................... 1734 Indian Head Mountains................................................................................................. 1734 Table Mountain at Port au Port................................................................................. 1734 The Big Level, Lewis Hills............................................................................................ 1735 Blow-me-down Mountains............................................................................................. 1735 Long Range Plateau at Steady Brook, Humber Valley........................................ 1736 Table Mountain, Bonne Bay........................................................................................ 1736 Gros Morne, Bonne Bay................................................................................................. 1737 Long Range, east of Parsons Pond.............................................................................. 1737 Long Range between Hawke Bay and Great Harbor Deep.................................. 1737 Topsails............................................................................................................................... 1737 Harpoon Hill, Red Indian Lake.................................................................................. 1738 Annieopsquotch Mountains........................................................................................... 1738 White Bay.......................................................................................................................... 1738 Baie Verte........................................................................................................................... 1738 Notre Dame Bay.............................................................................................................. 1738 Red Cliff, near Grand Falls........................................................................................... 1739 Eastern Newfoundland................................................................................................... 1739 Glacial stratigraphy of Bay St. George area..................................................................... 1739 General considerations.................................................................................................... 1739 Coastal exposures from Port au Port to Anguille Mountains.............................. 1739 Areal distribution............................................................................................................ 1744 St. Georges River Drift......................................................................................... 1744 Bay St. George Delta............................................................................................. 1744 Robinsons Head Drift............................................................................................ 1745 Baie Verte................................................................................................................................... 1745 Drift in other parts of Newfoundland................................................................................ 1745 Till........................................................................................................................................ 1745 Topsails...................................................................................................................... 1745 Buchans...................................................................................................................... 1745 Kittys Brook............................................................................................................. 1746 ( 1729) Downloaded from http://pubs.geoscienceworld.org/gsa/gsabulletin/article-pdf/51/11/1729/3415819/BUL51_11-1729.pdf by guest on 24 September 2021 1730 MAC CLINTOCK AND TWENHOFEL----GLACIATION OF NEWFOUNDLAND Page Hinds Brook.............................................................................................................. 1746 Badger and Gull Pond........................................................................................... 1746 Searston...................................................................................................................... 1746 Sandy Lake................................................................................................................ 1747 St. John’s.................................................................................................................... 1747 Placentia Junction to Argentia (Placentia Bay)............................................. 1747 Brigus Junction........................................................................................................ 1747 Terra Nova................................................................................................................ 1748 Notre Dame Junction............................................................................................. 1748 Deltas.................................................................................................................................. 1748 Humber....................................................................................................................... 1748 Bonne Bay................................................................................................................. 1749 Springdale, Halls Bay............................................................................................. 1749 Botwood..................................................................................................................... 1749 Eastern Newfoundland.......................................................................................... 1750 Norris Arm................................................................................................................ 1750 History of Wisconsin glaciation............................................................................................ 1750 Labradorian glaciation.................................................................................................... 1750 Stages of the Newfoundland ice cap........................................................................... 1750 St. Georges River Drift stage.............................................................................. 1750 Bay St. George Delta stage.................................................................................. 1753 Robinsons Head Drift stage................................................................................. 1753 Kittys Brook moraine stage................................................................................. 1754 Local valley glaciation.................................................................................................... 1754 Late glacial and postglacial uplift and dissection................................................... 1754 Weathering of the drift................................................................................................... 1755 Summary of results.................................................................................................................. 1755 Works to which reference is made....................................................................................... 1756 Figure Page 1. Diagrammatic section of drift along the coast from Port au Port to the Anguille Mountains...................................................................................................... 1740 2. Bay St. George Delta lying on St. Georges River Drift two miles west of Stephenville.................................................................................................................... 1741 3. Sections of the St. Georges lowland, spaced about one mile apart..................... 1742 4. Map of Pleistocene formations of the Bay St. George area.................................. 1744 5. Striae of Newfoundland................................................................................................... 1751 6 . Plucking of Main Topsail..............................................................................................