LIFESCI 2H03 Lecture Notes - Lecture 7: Carbon Fixation, Stza, Thermocline
3 Feb 2015
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Document Summary
Ocean biogeochemistry: around the world - there are many zones of primary productivity, e. g. Algal blooms - are important in the ocean"s ability to regulate co2 in the atmosphere. Chemical weathering and co2: weathering - process of disintegration and degeneration of rocks, minerals, or soils as a result of direct contact with the atmosphere of the. Earth: when takes place as a result of chemicals - known as chemical weathering. Is the main mechanism for removing co2 from atmosphere. these silicates - precipitate into the ocean floor and are deposited there by different means: key reaction - weathering of silica-rich rocks into surface of ground. Northern hemisphere and to the left in southern hemisphere by coriolis forces. Upwelling of the water creates a shear forces which brings sediments up from the ocean floor. What is the organic carbon subcycle: about 20% of today"s carbon cycle is in organic form, organic carbon - reacts quickly with changes.
