Chronological Research of the hominid fossil tibia from Sambungmacan, Jawa

爪哇 Sambungmacan 原始人类化石胫骨的年代学研究

基本信息

批准号：
09440283
负责人：
MATSUURA Shuji
金额：
$ 4.1万
依托单位：
Ochanomizu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09440283/
关键词：
Indonesia Java Man dating fossil bone constituent analysis human evolution palaeoanthropology anthropology

项目摘要

In September 1977, a fossilized shaft fragment of a hominid right tibia was found together with faunal remains from the Solo River short-cut canal site at Sambungmacan in Central Jawa, Indonesia. The Plio-Pleistocene sediments exposed at the site consist of the Kalibeng, Kabuh and Setri Formations in ascending order. While the exact findspot of the hominid tibia (surface discovery) in the field is unknown, the fluorine content of this specimen has been found to correspond to that of vertebrate bones in situ from the Kabuh and Setri Formations, and has thus suggested that the Sambungmacan tibia would be referred to a fossil hominid which may be included in 'Java Man' or 'Solo Man'. However, in the case of Sambungmacan, we could not settle the stratigraphic provenance (the Kabuh Formation or the Setri Formation? ) of the tibia with the fluorine analysis alone, and the clarification of its antiquity has awaited further research. Recent studies have shown that a new geochemical approach by multielement analyses of bone using inductively coupled plasma (ICP) spectrometry, in company with the fluorine assay, is very effective for purposes of provenance discrimination of fossil bones from the Sangiran area, Central Jawa ; and have assisted the geochronological placement of the Sangiran hominids. This report is concerned with the application of the multielement approach to the Sambungmacan tibia. The results imply that the hominid tibia in question has its origin in the Kabuh Formation. The present approach would be promising for the clarification of the stratigraphic provenance of the hominid braincase found from Sambungmacan in 1973. The antiquity of the tibia may also have a significant bearing on the ongoing controversy surrounding the geological age of the hominid femora from Trinil which led the species name of Pithecanthropus (now Homo) erect us.

1977年9月，在印度尼西亚中部贾瓦中部的Sambungmacan的Solo River短管遗址中发现了一个人类右胫骨的化石轴碎片。位于现场暴露的Plio-ple-pelyperene沉积物按升序组成。虽然田间中的人类胫骨（表面发现）的确切发现点尚不清楚，但已经发现该标本的氟含量与脊椎动物骨骼的原位相对应胫骨将被称为“爪哇人”或“独奏男人”中的化石人类。但是，就Sambungmacan而言，我们无法仅使用氟分析来解决胫骨的地层出处（Kabuh组或Setri组？），并且其上古的澄清等待了进一步的研究。最近的研究表明，使用电感耦合等离子体（ICP）光谱法对骨骼进行多层分析的新地球化学方法，该光谱法在与氟测定法的陪同下对出处歧视化石骨骼的供应目的非常有效。并协助了Sangiran人的年代学位。该报告涉及将多元方法应用于Sambungmacan胫骨的应用。结果表明，所讨论的人类胫骨起源于kabuh组。目前的方法将有望阐明1973年Sambungmacan在Sambungmacan发现的人类脑壳的地层出处。胫骨的古代也可能与围绕Trinil的同性股骨地质时代的持续争议引起了很大的影响。 Pithecanthropus的物种名称（现为同性恋）建立了我们。