0 made or left by a glacier -- 由冰河形成的；冰川造成的
a glacial period 极寒冷的时期
glacial temperatures 极低的气温
glacial deposits 冰川沉积
1 extremely unfriendly -- 冷若冰霜的，冷冰冰的，冷淡的
On short time scales, there seems to be a rather clear relationship between sedimentation rates and glacial- interglacial cycles.
Most investigators have accepted a glacial formation, but some prefer a soft-sediment mechanism.
The lake is fed by ephemeral glacial streams during 6 -8 weeks in the summer.
Glacial drift, both as till and fluvial deposits, is a major contributor to a variety of both micro- and macro-landforms.
The registry clerk also noted that the glacial rivers were not so dangerous or difficult to cross as later became dominant in the area descriptions.
There is currently no evidence available for microbes living in glacial ice without initially melting it before analysis.
There is no systematic correspondence of pluvials to glacials, however.
Large granite glacial boulders unearthed in the mining process.
