3 Matching Annotations
  1. Jan 2025
    1. Spreading is hypothesized to start within a continental area with up-warping or doming of crust

      I was wondering why there were underwater mountains along the Atlantic Ridge. I assumed mountains were only created by continents running into each other.

    1. Wave action and the movement of sediments over the shelf have continued this smoothing process. Continental shelves only make up about 6% of the ocean’s surface area, but they are biologically one of the richest parts of the ocean; their shallow depth prevents nutrients from sinking out, and their proximity to the coast provides significant nutrient input

      I find it interesting that the nutrients on the continental shelves don't wash into the abyssal plain over time and instead lead the way for the rich sanctuaries of life. I wonder what percentage of species reside on this specific 6% of the ocean surface?