This thesis is a discussion of the origin of the chert in the Ordovician limestone of the Saint Lawrence lowlands. The chert is dark grey to black in colour. It occurs as beds and variously shaped nodules, and in one outcrop, as vein-like or dyke-like tabular masses. The chert appears at three different horizons. At the base of the Beekmantown group, the top of the Black River group, and near to the base of the Trenton group.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.110089 |
| Date | January 1955 |
| Creators | Tuffy, Frank. |
| Contributors | Stearn, C. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science. (Department of Earth Sciences.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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