Airborne LiDAR application to karstic areas: the example of Trieste province (north-eastern Italy) from prehistoric sites to Roman forts

The Trieste Karst, at the northernmost shore of the Adriatic Sea, is rich in prehistoric caves and protohistoric hill forts. Most of these archaeological sites were already identified in the second half of the 19th century when large parts of the area were almost without vegetation coverage for the effect of sheep breeding and exploitation of wood resources. Only a few open-air archaeological sites have been discovered in recent years due to the lack of systematic archaeological surveys and reforestation.     

南方潮湿地区考古遗址迁移保护初探——以长沙国际金融中心建设工地考古遗址迁移保护工程为例

长沙国际金融中心建设工地考古遗址迁移保护工程是大遗址保护实践的有益探索,也是目前遗址保护与区域经济建设协同发展模式下较具现实意义和操作性的一种大型遗址保护途径。本次迁移保护工程是湖南地区首次遗址类不可移动文物大规模迁移保护,采用"表面加固"、"分段整体切割"、"探铲打孔底板嵌套插入隔断"、"聚氨酯发泡固型"四个步骤,对各类型遗存进行科学、完整的迁移保护,该技术在长沙首次成功运用,解决了潮湿土遗址迁移保护的饱水环境、遗址基层不稳定、安全施工等技术难题。希望为南方潮湿地区遗址、墓葬的整体迁移保护提供有益的借鉴。     

试论“过风楼类型”考古学文化

南水北调工程的考古工作,在陕豫鄂三省交界地区获得了大批西周时期的陶器材料。通过初步的分析,基本可以确定陕豫鄂交界地区西周时期存在一个独特的考古学文化,可以称为过风楼类型文化。本文通过对新出土的陶器材料的简单梳理和归纳总结,推断过风楼类型文化很可能就是西周时期的楚文化     

从出土东周带扣看其起源与传播

一、带扣的型式划分及用途分析以往的研究,对带扣进行分型定式主要是依据扣环来分,但是出土的带扣除了扣环有区别外,扣尾也有很大的区别。有的有扣尾,有的没有,有的则不分扣环和扣尾,整个为饰浮雕动物纹的牌状扣身,这就决定了它们的使用方法不     

河南灵宝市墙底遗址考古勘探报告

为深入了解灵宝盆地庙底沟二期文化大型遗址的聚落情况,2019年6~7月河南省文物考古研究院等单位对墙底遗址进行了初步勘探。结果表明,该遗址主体是一处庙底沟二期文化大型聚落,面积约70万平方米,是这一时期该区域目前发现规模最大的聚落遗址。该遗址还发现有仰韶文化、二里头文化时期的遗存。     

Marine electrical resistivity tomography for shipwreck detection in very shallow water: a case study from Agropoli (Salerno,southern Italy)

A marine electric resistivity survey was carried out over a submerged beach along the Agropoli shore (Salerno, Italy) to detect buried objects of archaeological interest below the sandy seabed. We found a shipwreck, a military vessel that probably sunk during the Salerno landing operations of the allied forces in the Second World War. Resistivity data provide information on the vertical and horizontal extension of the shipwreck, which is characterized by very low calculated resistivity values (about 2–5 ohm m). Such values differ significantly from the sand and the bedrock values (5–40 ohm m). Although the presence of the shipwreck is clearly visible from geoelectric data, the joint application of electric, magnetic and multibeam bathymetric techniques reduces the ambiguities inherent in each method. As shown in the Electrical Resistivity Tomography (ERT) and confirmed by the Digital Elevation Model (obtained from the processing of bathymetric data), the shipwreck extends more than 30 m in NE–SW direction and it is about 13 m wide. The global extension of the relic is consistent with the magnetic data, that are characterized by a magnetic anomaly with an amplitude of about 1800 nT and similar dimension, as inferred from the estimation of source boundaries obtained from the computation of the analytic signal. The results of our survey encourage the use of marine geoelectrical methods for the detection of buried archaeological targets, particularly in locations where the use of seismic prospecting is not effective (e.g. very shallow water with sandy sea-bottoms). The integration of different geophysical methods allows to better define the extension, depth and thickness of buried objects, suggesting that such an approach is the most effective for underwater archaeological investigations.     

Holocene paleoshorelines,water levels and submerged prehistoric site potential of Rice Lake (Ontario,Canada)

Rice Lake, located in the eastern Great Lakes of North America, has a high density of prehistoric (11–0.5 ka BP) terrestrial archaeological sites. It has been speculated that a large number of sites are submerged on the lakebed, as lake levels have risen >9 m since the arrival of Early Paleoindian peoples (∼11 ka BP). In order to better understand the submerged landscape and its archaeological potential, a detailed bathymetric survey and sediment-coring program was conducted across a 30-km² area of northeastern Rice Lake. Changes in Holocene water levels and shoreline positions were reconstructed by integrating core data with a digital elevation and bathymetric model (DEBM) that accounted for differential isostatic uplift and basin sedimentation. The DEBM was used to generate a series of maps showing changes in the lake paleobathmetry and paleogeography and areas of prehistoric archaeological potential.     

Potash - a key raw material of glass batch for Bohemian glasses from 14th-17th centuries?

The aim of this work is to verify or refute hypothesis of existence of basic/universal glass batch: quartz sand: potash: limestone, at a ratio of 2: 1: 1 used in Bohemian glass production since the middle ages onwards and to simulate the preparation of a potassium glass type with the composition used in medieval Bohemia. The chemical composition of Bohemian glass, which incorporated in the proposed glass batch for glassmaking on a laboratory scale, was evaluated by (a) findings directly related to glassmaking (samples from glasswork in Moldava dating back to the 15th century) and (b) information from publications.Experimentally produced glasses for the present paper were prepared from raw materials such as ash, leached ash, potash, limestone and quartz sand. The plant raw materials (spruce, beech and bracken ashes, raw and refined potash) were treated and prepared by methods similar to the production procedures used in the pre-industrial era.The main contrast was found in the CaO/K₂O weight ratio, which was determined in glasses that were characteristic of given periods. While this ratio was often below 1 in glasses of the 15th century, it reached values above 1 in glasses at the turn of the 16th-17th centuries. This result may indicate that the composition of the glass batch had changed.The results of the present study reject the current scholarly work dealing with glass batch composition during the 14th-17th centuries and confirm that glass produced in some Bohemian medieval glassworks could have been melted from a batch that included plant ash, making the use of limestone unnecessary. The traditional suggestion of the exact ratios of raw materials, often cited in historical literature, seems to be impossible. The glassmakers had to react to the variable composition of the raw materials, especially plant ash.     

Object-based landform delineation and classification from DEMs for archaeological predictive mapping

In this paper we report the results of an experiment with automated landform delineation and classification from digital elevation models (DEMs) using object-based image analysis (OBIA). Archaeologists rely on accurate and detailed geomorphological maps to predict and interpret the location of archaeological sites. However, they have been using high-resolution DEMs primarily for visual interpretation and expert-judgement classification of landform. OBIA can perform these classifications much faster and in a more objective fashion. The method was tested on a study area in the south east of the Netherlands. It is concluded that OBIA is a suitable technique for quick and objective delineation of landform, but needs an improved conceptual framework adapted to the local situation and archaeological questions to better identify and interpret the derived landform objects.     

Geographic information systems in archaeological analysis: a predictive model in the detection of rural Roman villae

This paper describes the experimental model that formed the basis for the author's PhD thesis. The main goal of the work is the implementation of Geographic Information Systems (GIS) in archaeological research. A survey of the state of the art was undertaken to enable an assessment of the model to be tried out and how implementation should be undertaken. The problem encountered then, and which still persists, is that data that are sufficiently reliable for archaeological purposes are hard to come by, in digital format.