Geophysical and geochemical techniques to assess the origin of rising damp of a Roman building (Ostia Antica archaeological site)

2016 ◽  
Vol 129 ◽  
pp. 49-57 ◽  
Author(s):  
E. Cardarelli ◽  
G. De Donno ◽  
C. Scatigno ◽  
I. Oliveti ◽  
M. Preite Martinez ◽  
...  
Keyword(s):  
Archaeological Site ◽  
Ostia Antica ◽  
Rising Damp

scholarly journals Soluble Salts Quantitative Characterization and Thermodynamic Modeling on Roman Bricks to Assess the Origin of Their Formation

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2866
Author(s):  
Claudia Scatigno ◽  
Nagore Prieto-Taboada ◽  
Giulia Festa ◽  
Juan Manuel Madariaga
Keyword(s):  
Archaeological Site ◽  
Risk Level ◽  
Salt Weathering ◽  
Soluble Salts ◽  
High Concentration ◽  
Quantitative Characterization ◽  
Chromatography Analysis ◽  
Acidic Gases ◽  
Hygroscopic Moisture ◽  
Ostia Antica

The environmental weathering and the formation of efflorescences on the brick walls are studied at the “Casa di Diana” Mithraeum at Ostia Antica archaeological site. Previous studies on subsoil, bedrock, hydrological systems and environmental conditions, and new ion chromatography analysis combined with ECOS-RUNSALT and Medusa-Hydra thermodynamic modelling software, had allowed us to identify the subsoil contamination related to soluble salts. The atmospheric acidic gases, CO2 and SO2, are determined as the main salt weathering species. A dry deposition after a subsequent hydration action from the shallow freshwater aquifer that reaches up to 1 m on the walls is identified as the mechanism of salt formation. An evaluation of potential sources such as the nearby Fiumicino airport, CO2-rich gases inputs from fumaroles and CO2 inputs was also debated. The risk level of contamination the surfaces of the materials should be considered mildly/very polluted with a medium/high risk of hygroscopic moisture due to the high concentration of sulphates.

scholarly journals Groundwater monitoring in the archaeological site of Ostia Antica (Rome, Italy): first results

2016 ◽  
Author(s):  
Lucia Mastrorillo ◽  
Roberto Mazza ◽  
Paola Tuccimei ◽  
Carlo Rosa ◽  
Renato Matteucci
Keyword(s):  
Water Table ◽  
Salt Marshes ◽  
Brackish Water ◽  
Groundwater Monitoring ◽  
Major Ions ◽  
Ground Surface ◽  
Archaeological Site ◽  
Archaeological Heritage ◽  
Tiber River ◽  
Ostia Antica

The archaeological site of Ostia Antica hosts the ruins of the ancient roman city called Ostia founded in the VII century B.C. near the mouth of Tiber River. The area was strategically important for Rome, not only for the control of the river, but also for some salt marshes (Ostia Pound). During the XIX century, the whole area was reclaimed and the salt production stopped. Nowadays drainage canals and pumps avoid the flood of zones placed below sea level, keeping dewatering below the ground surface. In February 2014, the site was largely flooded after an exceptional rainfall event and the Superintendence for Archaeological Heritage of Rome ordered the closure for 15 days. Few months later (July 2014) a groundwater monitoring project started with the aim of studying the aquifer response to local rainfall and prevent future damage and groundwater flooding. The activity consisted in water-table monitoring, groundwater electrical conductivity (EC) and temperature continuous measurements, coupled with chemical analysis of major ions. Preliminary results shows the link between water table fluctuations and rainfall distributions. The average elevation of the archaeological area is about 2,5 m a.s.l. and the local water-table depth is of about 0,5 m a.s.l.; groundwater flows from the Tiber River to the reclaimed area according to regional flowpath. Groundwater sampled from three wells is Ca-HCO3 freshwater (600 - 1000 μS/cm), while the sample collected from a well located close to ancient salt storage warehouse (now Ostia Antica museum), is Na-Cl brackish water (about 4000 μS/cm). The chemical evolution of groundwater from summer to winter suggested a possible lateral inflow from the Tiber River, affected by salt-wedge intrusion. The inflow of Ca-Cl, SO4 Tiber’s water with an intermediate salinity could determine salinization of Ca-HCO3 freshwaters and refreshing of Na-Cl brackish water.

scholarly journals Out of the archaeologist's desk drawer: communicating archaeological data online

2015 ◽  
Vol II-5/W3 ◽  
pp. 1-7 ◽  
Author(s):  
D. Abate ◽  
M. David
Keyword(s):  
Archaeological Site ◽  
Field Work ◽  
3D Models ◽  
Scientific Publications ◽  
Archaeological Data ◽  
Scientific Papers ◽  
Ostia Antica ◽  
Dissemination Of Research ◽  
High Level

During archaeological field work a huge amount of data is collected, processed and elaborated for further studies and scientific publications. However, access and communication of linked data; associated tools for interrogation, analysis and sharing are often limited at the first stage of the archaeological research, mainly due to issues related to IPR. Information is often released months if not years after the fieldwork. Nowadays great deal of archaeological data is ‘born digital’ in the field or lab. This means databases, pictures and 3D models of finds and excavation contexts could be available for public communication and sharing. Researchers usually restrict access to their data to a small group of people. It follows that data sharing is not so widespread among archaeologists, and dissemination of research is still mostly based on traditional pre-digital means like scientific papers, journal articles and books. This project has implemented a web approach for sharing and communication purposes, exploiting mainly open source technologies which allow a high level of interactivity. The case study presented is the newly Mithraeum excavated in Ostia Antica archaeological site in the framework of the Ostia Marina Project.

Biocultural Species Enhancement in the Archaeological Site of Tzintzuntzan, the “Place of Hummingbirds”

2019 ◽  
Vol 37 (3) ◽  
pp. 192-198
Author(s):  
Marina Barajas-Arroyo ◽  
Brenda Brown ◽  
José Luis Punzo ◽  
Jorge E. Schondube ◽  
Ian MacGregor-Fors ◽  
...  
Keyword(s):  
Archaeological Site

Mapping and Monitoring of the Land Use/Cover Changes in the Wider Area of ltanos, Crete, Using Very High Resolution EO Imagery With Specific Interest in Archaeological Sites

2019 ◽  
Author(s):  
Sawyer Reid stippa ◽  
George Petropoulos ◽  
Leonidas Toulios ◽  
Prashant K. Srivastava
Keyword(s):  
High Resolution ◽  
Spatial Resolution ◽  
Satellite Images ◽  
Archaeological Site ◽  
Digital Photography ◽  
Archaeological Sites ◽  
Large Area ◽  
High Resolution Imagery ◽  
Site Mapping ◽  
Rule Sets

Archaeological site mapping is important for both understanding the history as well as protecting them from excavation during the developmental activities. As archaeological sites generally spread over a large area, use of high spatial resolution remote sensing imagery is becoming increasingly applicable in the world. The main objective of this study was to map the land cover of the Itanos area of Crete and of its changes, with specific focus on the detection of the landscape’s archaeological features. Six satellite images were acquired from the Pleiades and WorldView-2 satellites over a period of 3 years. In addition, digital photography of two known archaeological sites was used for validation. An Object Based Image Analysis (OBIA) classification was subsequently developed using the five acquired satellite images. Two rule-sets were created, one using the standard four bands which both satellites have and another for the two WorldView-2 images their four extra bands included. Validation of the thematic maps produced from the classification scenarios confirmed a difference in accuracy amongst the five images. Comparing the results of a 4-band rule-set versus the 8-band showed a slight increase in classification accuracy using extra bands. The resultant classifications showed a good level of accuracy exceeding 70%. Yet, separating the archaeological sites from the open spaces with little or no vegetation proved challenging. This was mainly due to the high spectral similarity between rocks and the archaeological ruins. The satellite data spatial resolution allowed for the accuracy in defining larger archaeological sites, but still was a difficulty in distinguishing smaller areas of interest. The digital photography data provided a very good 3D representation for the archaeological sites, assisting as well in validating the satellite-derived classification maps. All in all, our study provided further evidence that use of high resolution imagery may allow for archaeological sites to be located, but only where they are of a suitable size archaeological features.

Ostia antica. Note pour la datation du Castellum aquae de la Porta romana

2004 ◽  
Vol 116 (1) ◽  
pp. 469-480
Author(s):  
Evelyne Bukowiecki ◽  
Hélène Dessales ◽  
Julien Dubouloz
Keyword(s):  
Ostia Antica

Ostia antica : le Castellum aquae de la Porta Romana (3e campagne)

2006 ◽  
Vol 118 (1) ◽  
pp. 331-337
Author(s):  
Evelyne Bukowiecki ◽  
Hélène Dessales ◽  
Julien Dubouloz ◽  
Grégoire Poccardi ◽  
Eric C. De Sena
Keyword(s):  
Ostia Antica
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