glacial period

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Based on the synthesis analysis of dating data, the positions of ancient coast lines in post-glacial period and mid-Holocene are given.
结合测年数据的综合分析，绘出了冰后期及全新世中期高海面时广西的古海岸位置。
Furthermore, older haplotypes were detected in the two groups, respectively. Possible refugia are inferred in western Hubei Province and SW China during the glacial period.
我们在最小生成树的两个组中推断出一些古老单倍型，并推测在冰期时湖北和我国的西南地区可能是该物种的避难所。
That's just before the last glacial maximum---a period when there was a sudden drop in temperature and glaciers advanced.
这正是冰川作用极盛期之前，由于气温急剧下降，导致冰川增高。

The findings of the scientists indicate that it probably landed around 15, 000 years ago in the last glacial period, but we know better.
ENGADGET: Alt-week 8.11.12: Robo-billies, quasicrystals and radioactive art

a time in the past when the temperature was very cold and glaciers covered large parts of the earth

any period of time during which a large part of the earth's surface was covered with ice, due to the advance of glaciers, as in the late Carboniferous period, and during most of the Pleistocene glaciation

冰期
In this region, because there is abundant precipitation for glacier development, glaciers are sensitive to temperature changes. Consequently, glacial extent changes most dramatically during the alternation of glacial and interglacial periods, such as the last glacial period.
是我国海洋性冰川发育的主要地区之一，其在水分周转中周期短，强度大，变化幅度也较大，对气候波动的响应敏感，因此在冰期—间冰期旋回中雪线就会出现大范围的波动。
冰川时代
冰河时代

冰期
Polyploidization failed to contribute significantly to the expansion of its geographic range. The geographic distribution of diploids and polyploids in G. pentaphyllum may be associated with the past ecological environments of different areas,especially during the glacial period.
绞股蓝的多倍化并没有显著扩大该种的分布范围,其二倍体与多倍体的地理分布差异可能反映了不同地区历史上的生态环境差异,特别是冰期时不同地区的生态环境。
天文学
冰河期