POLLEN AND MACROFLORAL ANALYSIS FOR BLUFF GREAT HOUSE, SITE 42SA22674, UTAH

Samples from five kivas (West, Central, East, Northeast, and Great) in front of the Great
House at Site 42SA22674 in Bluff, Utah, were analyzed for pollen and macrofloral remains.
Flotation and botanic samples also were recovered from the Great House, areas of berm/midden
around the Great House, the North Wall, and the Plaza. This site has several Chacoan settlement
characteristics, including a multi-storied Great House surrounded by an earthen berm/trash
midden, a Great Kiva, and a prehistoric road through the center of the site. The West, Central, and
East kivas did not have Chaco-style pilasters, however. These pilasters appeared Mesa Verde in
style. Ceramic analysis also suggests that much of the trash used in construction of the berm is
post-Chacoan. Pollen and macrofloral analyses are used to provide information concerning plant
resources utilized by the occupants of the site. Individual layers of plaster from the bench in the
East Kiva were examined for pollen to assess the potential for continued pollen analysis of plaster.
The pollen record might identify probable locations where materials were collected, season of
plastering, and/or mixing plant remains or pollen with the plaster for application to the walls and
benches. Several locations of the floor, including below a mano, as well as the floor of a vault and
a subfloor pit in the northeast kiva were examined for pollen.

对犹他州布拉夫地区42SA22674遗址大屋（Great House）前方的5座基瓦（Kiva，分别为西基瓦、中基瓦、东基瓦、东北基瓦与大基瓦）的样本开展了孢粉与大植物遗存分析。同时从该遗址大屋、大屋周边的护堤/垃圾堆积区、北墙以及广场中回收了浮选法样本与植物标本。该遗址具备多项查科式聚落特征，包括一座被土制护堤/垃圾堆积场环绕的多层大屋、一座大基瓦（Great Kiva），以及一条贯穿遗址中心的史前道路。但西基瓦、中基瓦与东基瓦并未采用查科式壁柱（pilasters），这类壁柱的风格更贴近梅萨维德（Mesa Verde）风格。陶瓷器分析结果同样显示，用于构筑护堤的大部分垃圾遗存年代属于查科文化晚期之后。孢粉与大植物遗存分析旨在揭示该遗址先民所利用的植物资源相关信息。研究人员对东基瓦台座上的不同层位灰泥开展了孢粉检测，以评估对灰泥开展后续孢粉分析的可行性。孢粉记录或可确定物料采集的可能地点、灰泥涂抹的季节，以及是否存在将植物遗存或孢粉混入灰泥以用于墙体与台座涂抹的情况。研究人员对东北基瓦的多处地面区域（包括手磨（mano）下方）、拱顶室（vault）地面以及地板下坑穴（subfloor pit）开展了孢粉检测。