A spring and wooded habitat at FLK Zinj and their relevance to origins of human behavior
A spring and wooded habitat at FLK Zinj and their relevance to origins of human behavior
复制标题
DOI：
10.1016/j.yqres.2010.07.015
复制
发表时间：
2010-11-01
影响因子：
2.3
通讯作者：
Baquedano, Enrique
中科院分区：
文献类型：
--
作者：
Ashley, Gail M.;Barboni, Doris;Baquedano, Enrique
1959年发现的人类化石鲍氏钦人（Zinjanthropus boisei）使世界关注坦桑尼亚奥杜威峡谷丰富的记录。随后对考古学第22层（FLK Zinj）第一层的挖掘发现了能人的遗骸，以及高密度的化石和Oldowan石器。几十年来，在这个特定的地点出现这种不寻常的骨骼和工具收藏一直存在争议。我们提出的古生态数据，提供了新的见解FLK Zinj的起源。我们最近在该遗址以北200米处的挖掘发现了一个0.5米厚的凝灰岩丘，上面覆盖着凝灰岩IC，与22级相同的地层水平。稳定同位素分析表明，碳酸盐是由淡水泉沉积的。植硅体分析下的凝灰岩IC的蜡质粘土揭示了丰富的木本双子叶植物和棕榈植硅体，表明该网站是树木茂密。两种环境的时间等效性和物理接近性表明两者是相关的。这项研究提供了第一个记录在案的证据，弹簧在床地这些数据有重要意义的解释人类的行为，在肉类收购和正在进行的辩论食腐与狩猎。(C)2010年华盛顿大学。爱思唯尔公司出版All rights reserved.
The 1959 discovery of the hominin fossil Zinjanthropus boisei brought the world's attention to the rich records at Olduvai Gorge, Tanzania. Subsequent excavations of archaeological level 22 (FLK Zinj) Bed I uncovered remains of Homo habilis and a high-density collection of fossils and Oldowan stone tools. The occurrence of this unusual collection of bones and tools at this specific location has been controversial for decades. We present paleoecological data that provide new insights into the origin of FLK Zinj. Our recent excavations 200 m north of the site uncovered a 0.5-m-thick tufa mound draped by Tuff IC, in the same stratigraphic horizon as level 22. Stable isotope analyses indicate that the carbonates were deposited by a freshwater spring. Phytolith analysis of the waxy clay under Tuff IC revealed abundant woody dicotyledon and palm phytoliths, indicating that the site was wooded to densely wooded. The time equivalency and close physical proximity of the two environments indicate the two are related. This study has provided the first documented evidence of springs in Bed land these data have important implications for the interpretation of hominin behavior in meat acquisition and the ongoing debate on scavenging versus hunting. (C) 2010 University of Washington. Published by Elsevier Inc. All rights reserved.