当你翻阅非洲地图量时,就能发现一条最长的东非大裂谷,全长6400公里,它南北延伸于东非高原之上。地质学家认为,约在3000万年以前,这一地区的地壳,由于受到张性断裂活动,发生明显的上拱和陷落,起落可达几千米,以致两侧出现非洲最高的山脉,其间分布许多封闭的低地、湖泊和海湾,如东非的坦噶尼喀湖、尼亚 As you scroll through the maps of Africa, you can find the longest Great Rift Valley, a total length of 6,400 kilometers, extending north-south over the East African plateau. Geologists believe that about 30 million years ago, the crust in this area was overtaxed and collapsed due to tensional faults, rising and falling by several kilometers, causing the highest mountain ranges in Africa on both sides. During this period There are many enclosed lowlands, lakes and bays, such as Lake Tanganyika in eastern Africa, and Nyia