Regional Variability in Tohoku district seen from the Kamegaoka-type pottery

1999年进行的考古调查如下：(1)根据龟冈型陶器表面的纹饰，收集考古数据，分析东北地区的区域内统一性和区际变异性。(2)为了收集数据，走访了岩手县和山形县的几个地方博物馆、公共教育中心和地方考古抢救中心，调查和记录了以往调查中出土的陶器并储存在其中。(3)龟冈型陶器，每种纹样都由一些微小的规则图案元素组成。规则基元的种类和数量因地区而异。为了解元素组合的地域差异，通过摄影、绘画等方法对大量陶片进行了调查记录。(4)用黑色墨水描绘陶画并编排出版。(5)以陶器为单位统计陶器中微小的母题元素，并根据其变异性计算母题元素的总量。(6)对东北地区多个遗址进行统计，了解纹饰陶器上母题元素的组合所代表的地域联系和差异。

Archaeological investigations carried out in 1999 are as followed.(1) Archaeological data were collected for analysis of intra-regional unity and interregional variability in Tohoku area based on the patterns decorated on the surface of Kamegaoka-type pottery.(2) To collect the data, several local museum, public educational centers and Local Archaeological Salvage Center in Iwate prefecture and Yamagata prefecture were visited to investigate and record the pottery that were excavated in past investigations and were stored in them.(3) In Kamegaoka-type pottery, every patterns are constituted of some minute regular motif elements. The kinds and the numbers of regular motif elements are varied from region to region. To see the regional difference based on the assemblage of elements, many pottery shards were investigated and recorded by such methods as photograph and drawing.(4) Pottery drawings are traced by black ink and arranged for publication.(5) Minute motif elements were counted pottery by pottery, and total amount of motif elements were calculated according to their variability.(6) The statistic procedure were carried out for many sites in Tohoku district to see the regional affiliation and difference represented on the assemblages of motif elements on the decorated potteries.