边石坝是在坡地或沟谷中大量结晶型钙华快速沉积而形成的小型梯田状地貌的石埂边坝。由于凸起部位层流水流速加快，水中的二氧化碳分压降低并逸出，从而导致在凸起处发生碳酸钙淀积。放眼望去，宛若梯田，层层叠叠，高低错落。 Rimstone dam is a landform shaped like terraced fields, which is formed after a rapid deposition of a large number of crystalline travertinein a sloping field or valley. In the bulge, the velocity of laminar flow quickens, as a result, the partial pressure of carbon dioxide decreases and overflows, resulting in calcium carbonate deposition near the bulge. Looking ahead, it looks like terraced fields.