Pollen Records of the Walhalla Glades Survey
收藏DataONE2011-05-20 更新2024-06-27 收录
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https://search.dataone.org/view/doi:10.6067:XCV8DN43DQ_meta$v=1305931161733
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资源简介：
Study of 23 pollen samples associated with archaeological sites in the Walhalla Glades district of Grand Canyon National Park yields surface sample data not consistant with prior research, possibly because the samples are actually of sediment deposited during the period the sites were occupied. Pollen record suggests local prehistoric cultivation in a paleoenvironment quite distinct from that presently occurring in this district.
创建时间：
2011-05-20
