The profitable production of dimension stone mainly depends on the extractable block size. The regularity and volume of the blocks are of critical importance, and are controlled by the three-dimensional pattern of the discontinuity system. Therefore, optimization of block size has to be the aim when quarrying for natural stone. This is mainly connected to the …

Dangme-land is naturally replete with abundant stone resources whose exploitation facilitated the peoples' adaptation to their environment. The objective of the researcher in this paper was to investigate for what purposes the ancient indigenous Dangme populations that occupied Sega Hill, Kpone, Shai and Prampram exploited and used stones in …

The use of stone tools, which dates back over 2.5 million years, and the subsequent evolution of a technologically-dependent lineage required the exploitation of very large quantities of rock.

The chapters include: Introduction to Spyglass Discover Digital Catheter, Step 1: Wire Guide Access to Biliary Tree, Step 2: Balloon Dilation of the Cystic Duct, Step 3: Using SpyGlass Discover Digital Catheter, Step 4: Insertion of Wire Basket with Stone Capture and Extraction, Step 5: Completion Cholangiogram, and Step 6: Cholecystectomy.

Traditional structural masonry represents an adept yet honest exploitation of stone as a building material, designed wholly in compression. Stone masonry is extremely strong in …

Stones occur in the form of natural rock masses or layers on the surface. The process of extraction of suitable stones from their natural rock beds or layers is commonly called Quarrying of Stones. It differs from the …

Total exploatation area is 16 hectares, and first phase exploatation is on 6 Ha. Stone reserves of the first phase quarry are estimated to 130.000 m3. According to current mining project the possible yearly production is estimated to 4000 m 3 /year. In second stage we are increasing exploatation to additional 6 hectares which will allow us to ...

The exploitation of ornamental stone and marble requires the extraction of intact blocks that can be sawed into slabs and tiles. Therefore, the need to extract intact blocks …

Nowadays, the dimension stone industry performs a crucial role in the world economy. Accordingly, dimension stone quarries' importance grows due to their different applications in various ...

Weekly Briefing, Vol. 43, No. 2 (BH), September 2021 . The quarry and architectural-building stone exploitation industry in Bosnia and Herzegovina Summary. The quarry and architectural-building stone exploitation industry in Bosnia and Herzegovina had been a significant economic segment of the country before the 1990's.Bosnia and Herzegovina holds …

Middle Stone Age (MSA) shellfish remains were studied for indications of changes in subsistence adaptations. Optimal Foraging Theory was applied to the MSA shellfish species from Blombos Cave and

Stone artifacts also hold vital clues to how ancient groups moved across landscapes and managed their raw material resources. Extracting this information requires the careful investigation of stone artifacts, naturally occurring stone, and the landscapes from which this raw material was procured. Over the last five years, our research in Jordan ...

The Manual de Rocas Ornamentales [5] and Stone: Building stone, rock fill, and armourstone in construction [6] are in our opinion the most complete scientific studies regarding this subject. Both present a very detailed systematisation of the research stages for the discovery and evaluation of ornamental-stone deposits from the initial data ...

Over the last five years, our research in Jordan has pursued this objective using stone to understand prehistoric resource use during the late Pleistocene and early Holocene. The Wadi …

Limestone is the only type of outcropping rock on the Yucatan Peninsula. Limestone, a sedimentary rock composed of calcium carbonate (CaCO 3), is abundant in the Yucatán Peninsula and was the key regional material as a building stone for the Maya culture.Limestone has a medium density (2.5–2.7 g/cm 3), its hardness is acceptable, and …

The Calabria region of Southern Italy is rich in mineralisation. Unfortunately, no consistent data are available about mineral exploitation in the later prehistoric periods. The Grotta della Monaca mine in Calabria is a prehistoric site that is characterised by the mineralisation of iron ores (such as goethite) and copper carbonates (malachite and azurite). For this reason, …

Dimension stone quarrying introduces very peculiar characteristics compared to other extractive industries; it is characterized by an international market, and, above all, it involves high commercial

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.

The main activity of the company is the surface exploatation of architectural stone, as well as the sale of blocks and finished products. Part ot the companys activities are also geological research aimed at discovering and activating new sites of architectural stone in Serbia. The architectural stone industry in former Jugoslavia was very ...

Natural stone is synonymous with 'loveability' of buildings, a 'dimension of home' (Hayward, 1975). The effort and affection of the people who worked on them can be appreciated (Dunbar-Nasmith, 1997). Stone improves in attractiveness with exposure and time. A receptive host for natural/organic microorganisms, they develop a patina of age.

A site located on the island of Brač is known in history for world-famous architectural stone and stone mining, dating all the way back to ancient Greek and Roman times. The most famous building constructed from the stone from Brač is the Diocletian Cesar Palace in the town Split. Prospective new locations for quarries are still required because the demand …

The present research examines the use of gypsum as a building and ornamental stone in Minoan palatial architecture during New Palace period. Survey, of the outcrops and the buildings, indicates a ...

The greywacke quarries in Wadi Hammamat are one of the best known examples of this kind of activity due to the number of inscriptions preserved at the site. Although a number of approaches to these inscriptions have been made, it is quite usual to find general studies about epigraphic features or the activities of one important functionary. The aim of this paper is to …

During the process of geological ornamental-stone deposits exploration, the unique and decisive criteria that should be considered are its dimensions, homogeneity, and fracturing …

Some igneous and metamorphic rocks in Oban Massif can meet requirements for the production of dimension stone. The thickness of lateritic deposits is thin in places, though the area is within the equatorial rain forest region subjected to extensive weathering. Pegmatitic granite and kyanite gneiss have been identified as of good quality in physical, chemical and …

With time, stone tools became increasingly complex, evolving into smaller core tools which were sharp-edged and angular to facilitate slitting skins to cut meat and soft plant matter, achieve deep penetration to kill game, and for shaping wood (Fagan, 2016, p. 58). Stone tools may have served additional functions as tools for mashing and hacking.

Relationship between contract price, volume of stone and type of work undertaken for contracts involving Corinthian stone for the Temple of Asklepios, Epidauros. Data from Burford 1969, Appendices ...

Stone aggregates are one of the most important construction materials obtained through conventional mining and crushing of building stones. The construction mining sector is highly unorganized, despite alarm calls raised by individuals and corporates regarding high accident rates and rapidly declining stone deposits. We may soon run out of quality stone …

Stone axes of Brittany and the Marches by C-T Le Roux (pp 49-56) Adzes from Linear Pottery sites: their raw material and their provenance by C C Bakels & C E S Arps (pp 57-64) Typology, materials, and distribution of flint and stone axes in Yorkshire, with by T G Manby (pp 65-78; pp 79-81) Stone axes from the East Midlands by C N Moore (pp 82-86)

Later Stone Age shellfish exploitation strategies at Lynch Point For much of the LSA, shellfish continued to be an important source of nutrition for prehistoric people in the southwestern Cape, a region characterised by sharp seasonal fluctuations in the availability, productivity and palatability of terrestrial plants coupled with a paucity ...