scholarly journals ARTIFACTS OF THE LATE BROZE AGE FROM MOKHNACH П SETTLEMENT

2019 ◽  
Vol 32 (3) ◽  
pp. 165-175
Author(s):  
A. V. Korokhina ◽  
V. V. Koloda
Keyword(s):  
Bronze Age ◽  
Thin Section ◽  
Raw Material ◽  
Surface Finishing ◽  
Matrix Group ◽  
Late Bronze Age ◽  
Settlement Site ◽  
Thin Section Analysis ◽  
Section Analysis

The article aims to introduce new finds of the Late Bronze Age from Mokhnach П settlement site at the Sіverskyi Donets river. Two archaeological object (pits 27 and 40) can be dated back to the Late Bronze Age. Finds are presented mostly by pottery sherds (31 units) discovered mostly in the excavation pit 1. The research program of the pottery assemblage includes account of its planographic distribution, distribution due to the type of sherds, analysis of shape, ornamentation, size, surface finishing, plastic raw material and paste recipes of vessels. Morphological and ornamentation classifications were built on the basis of the scheme developed on materials of Mosolovka site and the settlements of middle flew of Sіverskyi Donets river. Research of the plastic raw material and paste recipes was conducted using visual microscopic analysis, abridged MGR-analysis and thin-section analysis. Pottery assemblage includes 4 % of the total number of fragments discovered during excavations. Five pottery forms were identified: restricted and unrestricted jars, pot-like vessels, pots and ribbed vessels. Orifice diameters of jars, pot-like vessels and pots vary from 38.0 to 21.5 cm. Ribbed vessels on average are smaller than mentioned types and form to groups by size (with orifice diameters of 25 and 15—16 cm). Three techniques and nine elements of ornamentation were identified. Make-up of both surfaces prevails, fine-toothed comb treatment and coarse-toothed comb treatment of Pokrovka type are also presented. Two pottery fabrics can be distinguished in the assemblage with the naked eye. Five pottery samples were selected for purposes of technological analysis. Observations were conducted using the microscope on cross-cuts and fresh breaks of sherds before and after re-firing. Consequently two groups by features of plastic raw material and two paste recipes were identified. Both paste recipes include grog as an intentional addition. Due to method of the abridged Matrix Group by Refiring (MGR) analysis the samples were re-fired in controlled conditions up to from 1100 to 1200 °C. The results showed the identity of the matrix of all samples — non-calcareous, slightly over-melted (sovM). Their local production is suggested. The thin-section analysis allowed to clarify technological features of the samples with raw material type 1, paste type 1. Analyzed ceramic materials present traditions of the Wood-framed Graves entity. They mark new settlement site of the developed stage of the Wood-framed Graves entity and can be dated back to XVII—XVІ BC. Small size of the ceramic assemblage restricts its informative capacity. The importance of the research lies in testing the program of complex analysis of ceramic assemblages.

scholarly journals A petrochemical study of Mughal plasters of Quila-I-Ark, Aurangabad with respect to technology and repair

2020 ◽  
Vol 10 (2) ◽  
pp. 163-184
Author(s):  
Sneha Bakshi ◽  
Manager Rajdeo Singh
Keyword(s):  
Thin Section ◽  
Analytical Data ◽  
Water Channel ◽  
Mineralogical Composition ◽  
Raw Material ◽  
X Ray ◽  
Repair Mortar ◽  
Large Size ◽  
Thin Section Analysis ◽  
Section Analysis

This paper reports the mineralogical composition of western India's 16-17th century Mughal plasters of Quila-I-Ark, Aurangabad to prepare compatible repair mortar and document ancient Indian lime technology. Analytical studies were undertaken for aggregate grain size distribution, thin section analysis, Fourier Transform Infrared Spectrometer (FTIR), X-ray diffraction (XRD), and chemical composition of the plasters by x-ray fluorescence (XRF analysis). The analysis revealed the inclusion of large size basaltic aggregate grains mostly sourced from the water channel of nearby Harsullake. Some of the plaster works show prominent inclusion of small size grains pointing different periods of construction. Creamy white zeolites were found specifically added in the mortar mix to maintain a certain level of humidity during the dry season. The zeolite is highly porous and breaks easily both in dry and wet conditions. The calcite rich limestone with traces of magnesium was sourced as raw material for the plasters. Based on mineralogical composition and binder/aggregate ratio, three phases of historical constructions were documented. FTIR and thin section analysis showed the mixing of some proteinaceous adhesive juice in the lime for improvement in rheological and waterproof properties. The high quantity of large size aggregate grains ensured better carbonation of lime and the source of aggregates remained the same for all phases of historical constructions. The cementation index (C.I.) and hydraulicity index (H.I.) vary between 0.10 to 0.96 and 0.20 to 3.43, respectively showing the plaster is aerial lime with traces of magnesium. The plaster is feebly hydraulic as the hydraulic component calculated varies between 0.88 to 6.10 percent in different samples. A moderate strength plaster with a lime/silica ratio close to 0.33 was prepared for most phases of construction except a few isolated locations. The analytical data will now help to prepare compatible mortar with identical additives for a major repair.

scholarly journals The Late Bronze Age settlement site of Březnice: Magnetometer survey data

Data in Brief ◽  
2021 ◽  
Vol 35 ◽  
pp. 106793
Author(s):  
Martin Kuna ◽  
Roman Křivánek ◽  
Ondřej Chvojka ◽  
Tereza Šálková
Keyword(s):  
Bronze Age ◽  
Survey Data ◽  
Late Bronze Age ◽  
Settlement Site

Details of Thin Section Analysis of Pottery Fabrics

1987 ◽  
Vol 53 (S3) ◽  
pp. 53-59
Author(s):  
Carol Allen
Keyword(s):  
Thin Section ◽  
Clay Matrix ◽  
Thin Section Analysis ◽  
Maximum Measurement ◽  
Section Analysis

Terms usedGrog relates to clay inclusions within the pottery which appear as discrete pieces of varying sizes. Usually such entities are assumed to be crushed parts of pre-existing pots.Sizes of quartz, grog, shell or other inclusions referred to in the analysis concern measurements taken on the longest axis of the grain or piece. In each case the maximum measurement stated is the longest observed in that particular section, and does not infer that other grains in the sample were all of this size, unless stated.Percentages of materials shown as included in the clay matrix are estimates expressed by area using comparison charts (Terry and Chilingar 1955, and Flugel 1982, 247-257).

The Holmes effect and the lower limit of modal analysis

1956 ◽  
Vol 31 (234) ◽  
pp. 276-281 ◽  
Author(s):  
F. Chayes
Keyword(s):  
Modal Analysis ◽  
Lower Limit ◽  
Thin Section ◽  
Transmitted Light ◽  
Apparent Area ◽  
Measurement Surface ◽  
Areal Measurement ◽  
Thin Section Analysis ◽  
Measurement Area ◽  
Section Analysis

SummaryThin-section analysis is essentially an areal measurement, the measurement area usually being the upper surface of the section. If transmitted light is used for the measurement, the apparent areas of opaque grains will in general be somewhat larger than their true areas on the measurement surface. For strictly spherical opaque particles in a transparent matrix the expected excess of apparent over true area is shown to be (πr2k)/(2r + k) where r is the spherical radius and κ is the thickness of the thin section. A table shows the relation between true and apparent area as a function of r/k.

Sign in / Sign up

Export Citation Format

Share Document