On the age of Border Cave 5 human mandible.
نویسندگان
چکیده
An enamel fragment from the Border Cave 5 specimen was analysed with non-destructive ESR combined with laser ablation ICP-MS for uranium profiling. We obtained an age of 74+/-5 ka which fits exactly into the chronological framework that has been previously established for Border Cave by a variety of dating techniques. The result lays at rest the view that BC5 could be of Iron Age, as was implied by (Journal of Human Evolution, 31 (1996) 499) based on nitrogen contents and infra-red splitting factors.
منابع مشابه
Border Cave
1941-1942, many Middle Stone Age industries were revealed. In addition, an infant burial was found in the assemblage. This finding lead archeologists to think that there may have been earlier hominid habitation in the Border cave site. Geologist H. B. S. Cooke did geological studies of the Border Cave assemblages. In 1974, a hominid mandible was found during an excavation along with younger MSA...
متن کاملThe Role of Lingual Bone Grafting in the Treatment of Displaced Edentulous Mandibular Fracture with Severe Atrophy
Introduction: Treatment of edentulous atrophic mandible with severe atrophy is a challenge based on local conditions and systemic diseases confronted by the age group affected. If bone grafting is indicated, it is often used in lateral or inferior aspects of the mandible. Case Report: A 70-year-old male with a unilateral fracture of the atrophied left mandibular body was managed by lingual bon...
متن کاملBorder Cave revisited: a revised ESR chronology.
In view of a decade of progress in ESR dating we have revised the ESR chronology of Border Cave. A detailed gamma ray survey in 1994 and newly calculated beta attenuation data led to total dose rate estimations that are between 0 and 30% smaller than previously estimated. Accordingly, the resulting ESR age estimates are between 0 and 30% older. The ESR dates are now in good agreement with indep...
متن کاملAssessment of the inferior mandibular canal’s position by Cone-Beam Computed Tomography
Abstract Objectives: It is important to know the exact location and anatomic variety of inferior alveolar nerve canal for different procedures of mandibular surgeries. The aim of the present study was to evaluate inferior mandibular canal’s anatomic position by Cone-beam Computed Tomography (CBCT). Methods: In a cross sectional study, CBCT were taken and assessed from 130 patients (...
متن کاملEvaluation of the accuracy of panoramic radiograph in determining the location of the lingula
Introduction: The purpose of this study was to determine the accuracy of panoramic radiograph in locating the position of lingula as an index to estimate the location of mandibular foramen. Methods: The distance measurement in this study was carried out on 30 dry mandibles, composed of at least 2 first molars and one canine. Photography and panoramic radiography of the mandible was performed...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of human evolution
دوره 45 2 شماره
صفحات -
تاریخ انتشار 2003