BIOL 2903 Lecture Notes - Lecture 2: Hudson Bay Lowlands, Sedimentary Rock, Gneiss
30 Jan 2017
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It is the rock that lies under the soil = the bedrock. The sediments are coming down from the big body of water/ocean. Through time when the water leaves, it becomes rock. E. x. , limestone: it is not find through ontario, where it is found tends to be calcium for plants. Softer than other rocks and tends to erode easier. Effervesces = bubbling up: when you drop acid on these rocks, telling us that there is calcium carbonate there. Because calcium in the rock becomes calcium carbonate: carbon dioxide. Made from animals whose fossil remains are full of calcium. Igneous: being formed inside the earth from the magna cooling down. Hard and acidic: cracks are from rocks folded up, no nice distinct bands of limestone. Plants growing on top would like bunchberry: grows on dry and acid conditions. Rocks help determine where the plants are found. When you drop acid on marble, it effervesces.
