greatlakes
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greatlakes |
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| navigate by keyword : abundance ancient background beach beachcombing beauty busy collect collection colorful colors conceptual conglomerate continental copyspace earth earthscience education epidote eroded erosion fossiliferous fossils geologist geology glacial glaciation glaciers gneiss granite greatlakes igneous lake lakeshore limestone metamorphic mineral newyorkstate nys ontario origin pebble region rocks round sandstone sandyisland science sedimentary serpentinite shoreline smooth stones teaching treasure types unique winnowing |
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| Unique origin of ancient glaciers of Lake Ontario GreatLakes area created beach rocks in the region. The north-south drumlins are being aggressively eroded by the relentless action of Lake Ontario. With annual erosion rates of as much as 2-5ââ¬â¢, an incredible amount of new material is churned into the lake water each year. Water level rises in the winter and the combination of wave action and freeze thaw eats into those wondrous chimneys of uncemented conglomeratic material that continental glaciation littered across western New York a mere 10-20 thousand years ago. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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