地理漫步·世界地理英语30篇（7）
17 / 30
正在确认阅读权限…
Canyons Reveal Time Through Rock and Light
峡谷：岩石与光影中的时间刻度
-
Canyons are deep, narrow valleys carved by rivers over ages.峡谷是河流经年累月冲刷形成的深而窄的山谷。
-
Sunlight hits canyon walls at different angles each season.阳光每个季节以不同角度照射峡谷岩壁。
-
Rock colors show mineral changes from ancient environments.岩石颜色反映了远古环境中的矿物变化。
-
Narrow canyons create microclimates cooler and damper than nearby land.狭窄峡谷形成比周边地区更凉爽湿润的微气候。
-
Erosion rates vary where hard and soft rocks meet.坚硬与松软岩石交界处的侵蚀速度各异。
-
Canyon rims often host different plants than canyon floors.峡谷边缘生长的植物常与谷底不同。
-
Flash floods reshape canyon bottoms after heavy rainstorms.暴雨后的山洪会重塑峡谷底部地貌。
-
Geologists use canyon layers to date Earth’s surface changes.地质学家通过峡谷地层来测定地表变化的时间。