. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. ^f \\ UN8TRATIFIED DRIFT. 59 found on the beach or in river beds. If our inquiries proceed a little beyond a mere glance at these at first sight not very interesting materials, we may discover that the large stones in the drift are of very different kinds. Some of them, perhaps the greater number, may be of the same kind with the rocks occurring in situ in
. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. ^f \\ UN8TRATIFIED DRIFT. 59 found on the beach or in river beds. If our inquiries proceed a little beyond a mere glance at these at first sight not very interesting materials, we may discover that the large stones in the drift are of very different kinds. Some of them, perhaps the greater number, may be of the same kind with the rocks occurring in situ in the vicinity. Others are of kinds not found in place except at gi'eat distances. It is farther observable that the clay or sand containing large stones, is not arranged in layers, but that its materials are confusedly intermixed. The fine rounded gravel, however, is not only comparatively free from large stones, but it is arranged in beds or layers, often with bands of sand between. We shall also in some localities find beds of fine clay containing marine shells, and sometimes, though rarely, com- pressed peaty matter underlying the drift deposits. By studying the superposition of these materials, we may readily arrive at the following arrangement of them in descending order, or from the newer to the older :— 1. Gravel and sand beds, and ancient gravel ridges and beaches, indicating the action of shallow water and strong currents and waves. 2. Stratified clay with shells, showing quiet deposition in deeper vf&ter. 3. Unstratified boulder clay, indicating the united action of ice and water. 4. Peaty deposits, belonging to a land surface preceding the deposit of the boulder clay. As the third of these formations is the most important and generally diffused in Acadia, we shall attend to it first, and notice the relation of the others to it. The Unstratified Drift or boulder clay may be viewed as consisting of a base or paste including angular and rounded fragments of r
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
