现在的研究表明，在最后一次冰河时期的尾声阶段，阿拉斯加东南部沿岸的内大陆架的相当大的区域并未被冰覆盖。
Research now indicates that sizable areas of southeastern Alaska along the inner continental shelf were not covered by ice toward the end of the last Ice Age.
研究人员将他们的研究基于冰河时期陆地与海洋的表面温度，通过检查冰核心，钻井，海底沉积物和其他因素。
The researchers based their study on ice age land and ocean surface temperature obtained by examining ices cores, bore holes, seafloor sediments and other factors.
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