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加拿大太平洋沿岸的末次冰期末期人类足迹。

Terminal Pleistocene epoch human footprints from the Pacific coast of Canada.

机构信息

Hakai Institute, Calvert Island, British Columbia, Canada.

University of Victoria, Victoria, British Columbia, Canada.

出版信息

PLoS One. 2018 Mar 28;13(3):e0193522. doi: 10.1371/journal.pone.0193522. eCollection 2018.

Abstract

Little is known about the ice age human occupation of the Pacific Coast of Canada. Here we present the results of a targeted investigation of a late Pleistocene shoreline on Calvert Island, British Columbia. Drawing upon existing geomorphic information that sea level in the area was 2-3 m lower than present between 14,000 and 11,000 years ago, we began a systematic search for archaeological remains dating to this time period beneath intertidal beach sediments. During subsurface testing, we uncovered human footprints impressed into a 13,000-year-old paleosol beneath beach sands at archaeological site EjTa-4. To date, our investigations at this site have revealed a total of 29 footprints of at least three different sizes. The results presented here add to the growing body of information pertaining to the early deglaciation and associated human presence on the west coast of Canada at the end of the Last Glacial Maximum.

摘要

关于冰期人类在加拿大太平洋沿岸的居住情况,我们知之甚少。在这里,我们介绍了不列颠哥伦比亚省卡尔弗特岛上一个全新世晚期海岸线的目标调查结果。根据该地区海平面在 14000 至 11000 年前比现在低 2-3 米的现有地貌信息,我们开始在潮间带沙滩沉积物下系统寻找可追溯到这一时期的考古遗迹。在地下测试中,我们在 EjTa-4 考古遗址的沙滩沙下发现了一个 13000 年前的古土壤中的人类脚印。迄今为止,我们在该遗址的调查共发现了至少三种不同大小的 29 个脚印。这里呈现的结果增加了与末次冰盛期结束时加拿大西海岸早期冰川消退和相关人类存在相关的信息量。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bfdf/5873988/7c2bb6e95632/pone.0193522.g001.jpg

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