• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Late Pleistocene and recent archaeology and geomorphology of the south shore of Harney Lake, Oregon
【2h】

Late Pleistocene and recent archaeology and geomorphology of the south shore of Harney Lake, Oregon

机译：晚更新世和最近考古学和俄勒冈州哈尼湖南岸的地貌

页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present study was a response to the discovery of two artifacts found in a ditch wall near Harney Lake, Oregon. These were lying on a buried lake floor that appeared to be of late Pleistocene or early Recent age. Other sediments exposed in the ditch seemed to relate to at least some of the phases of the pluvial lake sequence in the Harney Basin. Three problems were considered: (1) the geomorphology and dating of the pluvial lake stillstands, (2) whether the original artifacts were part of a larger early site, and (3) whether there was any relationship between archaeological sites and geomorphic features in the area. These problems were approached in the field by stratigraphic mapping of exposed sediments and by an archaeological survey of a defined study area. Test excavations were made adjacent to the location of the original artifact discovery to search for other cultural material. Beachline records of four stillstands of Pluvial Lake Malheur are preserved in the exposed sediments. The youngest beachline is undated. Three others were 14C dated from associated fossil molluscs at 32,000, 9620 and 8680 B.P. At least in the case of the 8680 B.P. lake, the Harney Basin was filled to overflowing and was a part of the Columbia River system. The Voltage basalt flow, which dammed the outlet of the Basin in Malheur Gap, was in place by 32,000 years ago. There is no evidence for a diversion of the Basin outlet to Crane Gap following this event. Molluscan fossils and diatoms were used, along with soil texture analyses, to help identify and differentiate sedimentary deposits and to draw environmental inferences. Artifacts were found both on and beneath buried beach deposits of the 8680 B.P. lake. Four of the five sites in the study area were either on wave-cut terraces or other lakeshore features associated with this lake. Diagnostic artifacts are Lind Coulee points, crescents, basally ground leaf-shaped points, and what are apparently true blades. The sites seem to have been located to take advantage of shallow water littoral zone resources. Fish may have been an important dietary item of the early Harney Basin dwellers. Large salmonid vertebrae from fish in the 10 kg weight class are found on the playa. By using the relationship between landforms and elevations it may be possible to predict the general age class of other sites on the margin of the playas.
机译：本研究是对在俄勒冈州哈尼湖附近的沟壁中发现的两个文物的发现的回应。它们躺在似乎是更新世晚期或最近早期的一个被掩埋的湖底上。沟中暴露的其他沉积物似乎至少与哈尼盆地的冲积湖层序的某些阶段有关。考虑了三个问题：（1）冲积湖静止的地貌和年代，（2）原始文物是否是更大的早期遗址的一部分，（3）考古遗址和该地区的地貌特征之间是否存在任何关系区域。这些问题在野外通过暴露的沉积物的地层图绘制以及在确定的研究区域进行考古调查来解决。在原始文物发现的位置附近进行了测试发掘，以寻找其他文化材料。裸露的沉积物中保留了Pluvial湖Malheur四个静止状态的海滩记录。最年轻的海滩是未注明日期的。其他三个是14C，起源于相关的化石软体动物，年代分别为32,000、9620和8680 B.P.至少在8680 B.P.湖，哈尼盆地充满了水，是哥伦比亚河系统的一部分。到了32,000年前，电压玄武岩流就堵塞了Malheur Gap盆地的出口。在此事件之后，没有证据表明盆地出口会转移到Crane Gap。使用软体动物化石和硅藻以及土壤质地分析来帮助识别和区分沉积物并得出环境推断。在8680 B.P.的掩埋海滩沉积物上及其下均发现了文物。湖。研究区域的五个地点中有四个地点位于波浪阶地或与此湖相关的其他湖岸特征。诊断伪像是Lind Coulee点，新月形，基本磨碎的叶形点以及显然是真正的刀片。这些地点的位置似乎是在利用浅水沿岸带资源。鱼是哈尼盆地早期居民的重要饮食。在普拉亚海滩上发现了重10公斤重的大型鲑鱼椎骨。通过使用地貌与海拔之间的关系，可以预测普拉亚斯边缘其他地点的总体年龄。

著录项

  • 作者

    Gehr Keith Donald;

  • 作者单位
  • 年度 1980
  • 总页数
  • 原文格式 PDF
  • 正文语种
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号