Field Notebook: Massachusetts, New Hampshire, Vermont 1921
Page 20
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Transcription
was around by slates - like the Beede slate of Dater ville Maine. All of this possibility leads leading into to see if any paleography needs wider rectification. The Logan fault may be as much as 40 miles in western Vermont. The basal formation is either a gray quartzite or the red sandstone formerly thought to be the one of the Ordovica. It then follows greywackes with limestone conglomerates and limestones. The thickness is probably not nearly so thick as Walcott states, but so far Keith does not determined it. East of the Logan fault there is another faults? Late Trecassic time, and farther east another one of the Appalachian type. The Paleogries not up on lofty attend meta- morphosed sedimentaries, slates, sandstones are lie, of Algonkian age and older older Laurentian. Keith evidently does not believe there is an Ordovician system. He thinks all is Beekmantown.