3 冰川遗迹

3 冰川遗迹

Glacier Relics

冰川遗迹是冰川在其发生、发展和消亡过程中由冰川的侵蚀和堆积作用而形成的地貌景观。以李四光为首的冰川学派认为，黄山在第四纪（距今200万年）时期曾有冰川活动。

Glacier relics are landscapes of glaciers formed by erosion and accumulation during occurrence，development，and extinction. The glacier school led by Li Siguang believes that there was glacier activity in Huangshan，during the Quaternary period（2 million years ago）.

“U”形谷：由冰川侵蚀作用形成的“U”形谷地构成的景观。

U-shaped Valley：U-shaped valley landscape is formed by glacial erosion.

冰川擦痕：冰川刻蚀作用形成的一种景观，由冰川冰或冰川漂砾对基岩或两侧山体的刻划，是固体与固体之间的碰撞、擦锉在岩石上留下的痕迹。

Glacier Scratch：A landscape formed by the erosion of glacier.

冰臼：冰川融水沿冰川裂隙下渗贯通，在冰川与基岩接触的表面上形成高水压，裹带底碛砾石的冲击、磨蚀基岩形成深坑的一种景观。(https://www.daowen.com)

Glacial Pothole：The glacial meltwater penetrates along the glacial fissures，forming a high water pressure on the surface of the glaciers in contact with the bedrock. It is a landscape of deep pits formed by the impact and abrasion of the base moraine gravel.

漂砾：冰碛物中巨大的石块构成的景观。

Boulders：A landscape of huge stones in moraine deposit.

天都峰鲫鱼背：冰川学派认为鲫鱼背是第四纪冰川作用形成的角峰，是冰川侵蚀形成的外形似尖角山峰的一种地貌景观。

Glacier Horn：There is a mountain peak which looks like a carp’s back in Tiandu peak. The glacier school said that it was formed by the Quaternary glacial erosion.