As siglas da igreja de Boelhe

Guedes, César

doi:10.21747/09714290/port40a4

Cited by 3 publications

(4 citation statements)

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“…Glyptographic analysis (Guedes 2019) has consisted in identifying all the mason's marks on the three visible façades of the nave (SE, NW and SW). Once the marks have been identified, colours have been assigned to each of them to map all the ashlars of the three façades, thus marking each ashlar with a colour assigned to its mason's mark.…”

Section: Methodsmentioning

confidence: 99%

Building Granite Characterisation, Construction Phases, Mason’s Marks and Glyptography of Nossa Senhora de Guadalupe Church, Mouçós e Lamares, Galicia-North Portugal Euroregion

et al. 2023

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The Romanesque church of Nossa Senhora de Guadalupe of Mouçós e Lamares is located in Vila Real (North of Portugal). The exterior part of its nave is preserved almost unaltered. Most of the granite ashlars and corbels that make up this church have a mason’s mark in the centre of their faces. The building granites (Sanguinhedo and Vale das Gatas) have been identified and characterised petrographically and petrophysically. The mason’s marks have been as well identified; all the ashlars with visible mason’s marks have been mapped, and a glyptographic study has been carried out. In addition, the surface roughness of ashlars was measured. All these analyses have made it possible to locate the main historical quarry, to calculate the number of stonemasons who worked in the construction of the church, and to determine its construction phases. There are eight main types of mason’s marks on the nave façades. The quarrymen extracted the main building granite (Sanguinhedo granite) from the same quarry, or from nearby quarries. Although the most experienced stonemason has been identified, most stonemasons worked as a team during all construction phases of the church. Techniques such as petrography, ultrasonic P wave velocity, colourimetry, roughness and the determination of hydric properties will guarantee the quality and durability of the heritage stone for restorations. In addition, the glyptographic analysis revealed important historical and ethnographic findings that will be very useful for the appreciation of the monument. Therefore, the knowledge of built heritage, such as mason’s marks contribute to the conservation of historical quarries and traditions, as well as help understand the close cultural association societies have had with heritage stones. In this way, the scientific corpus of historical-cultural heritage can face for the development of tourism in Galicia-North Portugal Euroregion in a long-lasting sustainable way.

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Section: Methodsmentioning

confidence: 99%

Building Granite Characterisation, Construction Phases, Mason’s Marks and Glyptography of Nossa Senhora de Guadalupe Church, Mouçós e Lamares, Galicia-North Portugal Euroregion

et al. 2023

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“…The δ 18 O Q isotope (V-SMOW) for quartz crystals collected from argillic andesite blocks at −110 m yielded a value at c. þ15.12 ‰ (1τ), which represents a mean value of five samples. The δ 18 O F isotopic fractionation calculated for the quartz-H 2 O pair (Clayton et al 1972) is 7.73 ‰ (1τ) for the quartz precipitation at a temperature of 270-300 °C estimated from the fluid inclusion data (Guedes et al 2000). Calculating Δ = δ 18 O Q − δ 18 O F, a value of 7.39 ‰ (1τ) was obtained.…”

Section: Bobosmentioning

confidence: 99%

“…3f). The hydraulic fracturing of the andesite dyke occurred owing to a high-pressure gas explosion event (~100 MPa, after Guedes et al 2000), generating 'crackle' blocks. Cement and hydrothermal quartz crystals from the open-filling space of the breccia were collected from this location for mineralogy and geochemistry (see Table 1).…”

Section: Bobosmentioning

confidence: 99%

“…Preliminary fluid inclusion data identified four primary coeval types (aqueous one-phase (L), aqueous two-phase (L-V), rare aqueous multiphase (L-V-S) with a halite cube and carbonic one-phase (V) at room temperature in the NaCl-CaCl 2 -MgCl temperature of 270 °C and pressure of 100 MPa, respectively (Guedes et al 2000). The CH 4 identified as vapours in fluid inclusions derived from a variety of carbon host-rock sources from the Transylvanian basin.…”

Section: B Mineralogy and Geochemistrymentioning

confidence: 99%

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Hydrothermal injection breccia with organic carbon and nitrogen in the fossil hydrothermal system of Harghita Bãi, East Carpathians, Romania: an example of magmatic and non-magmatic element mobility in the upper continental crust

Boboş

2022

Geol. Mag.

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Organic carbon and nitrogen fixed in illite (I) clays were identified in a hydrothermal breccia structure from the Harghita Bãi area of the Neogene volcanism of the East Carpathians. The potassium-illite (K-I) alteration related to an early magmatic-hydrothermal event (9.5 ± 0.5 Ma) was later replaced by ammonium-illite (NH4-I) (6.2 ± 0.6 Ma) owing to circulation of an organic-rich fluid. Several textural evolutions of breccia structures were recognized, such as ‘shingle’, ‘jigsaw’, ‘crackle’ and hydraulic in situ fractures. The high-field-strength element behaviours of the K-I and NH4-I argillic altered andesite are close to chondritic ratios, indicating no contribution of hydrothermal fluid, especially on NH4-I andesite alteration and the CHArge-and-RAdius-Controlled (CHARAC) behaviour within silicate melts. The rare earth element normalized patterns show two distinct trends, one with a Eu* anomaly (K-I) and the other with a Nd* anomaly (NH4-I), indicating a boundary exchange with the organic-rich fluid. The strongly depleted δ13C (V-PDB) measured for the NH4-I clays reflects values (−24.39 to −26.67 ‰) close to CH4 thermogenic oxidation, whereas the δ15N (‰) from 4.8 to 14.8 (± 0.6) confirmed that the N2 originated from post-mature sedimentary organic matter. The last volcanism (6.3 to 3.9 ± 0.6 Ma) and simultaneous volcano-induced tectonics in the proximity of the eastern Transylvanian basin basement increased the heat flow, generating lateral salt extrusion, diapirism and increased pressure in the gas reservoir. New pathways were opened that provided new circulation routes for basinal fluids to new and old permeable zones and expelled seeps from the biogenic petroleum system.

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Main building granite of São Tiago de Folhadela Parish Church (North of Portugal). Petrography, glyptography, construction phases and decay by pyrite oxidation

Freire-Lista

Campos

Costa

et al. 2022

Construction and Building Materials

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As siglas da igreja de Boelhe

Cited by 3 publications

References 0 publications

Building Granite Characterisation, Construction Phases, Mason’s Marks and Glyptography of Nossa Senhora de Guadalupe Church, Mouçós e Lamares, Galicia-North Portugal Euroregion

Building Granite Characterisation, Construction Phases, Mason’s Marks and Glyptography of Nossa Senhora de Guadalupe Church, Mouçós e Lamares, Galicia-North Portugal Euroregion

Hydrothermal injection breccia with organic carbon and nitrogen in the fossil hydrothermal system of Harghita Bãi, East Carpathians, Romania: an example of magmatic and non-magmatic element mobility in the upper continental crust

Main building granite of São Tiago de Folhadela Parish Church (North of Portugal). Petrography, glyptography, construction phases and decay by pyrite oxidation

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