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EN
The article analyses the text of Daniel Vetter (1592–1669) being the first description of Island in the Polish language. D. Vetter stayed in Island in June 1613 and the report of his stay was published in Leszno only in 1638. D. Vetter, although a Czech by descent, with the use of Czech characters, fi rst in Polish and then in Czech, German, Danish, etc. provided characteristics of tourist, natural and cultural attractions of Island. Author of the article also visited the island 403 years after D. Vetter and to a large extent confi rmed, explained and supplemented observations, refl exions and relations prepared in the first half of the 17th century.
EN
The article discusses certain objects built of bog iron ore or erratic boulders and bog iron ore, mainly in the western part o f the country. Attention is drawn to the fact that bog iron ore was applied as building material in Ostrow Lednicki already at the turn of the tenth and eleventh century. During the thirteenth century, it was used for the erection of Gothic churches in the environs of Nowa Sol in the region of Lubusz. In the second half of the nineteenth century, it was revived as a local building material.
EN
The paper consists of the introduction, an outline of the geologic structure, a description of mineral resources and final remarks. The geologic structure of a region within the area of the Lednica castellary is presented on the basis of unpublished data from boreholes and the geological literature. Two geologic sections have been used in this study. One is very general by P. Karnkowski (1980 — Fig. 1), whereas the other by J. Dąbrowski (1985) depicts the structures of the Quaternary and Tertiary deposits along the line Wierzonka — Kowalskie — Jerzyn — Pomorzanowice — Lednogóra — Dziekanowice — Łubowo — Braciszewo — Skiereszewo — Gniezno (Fig. 2). The mineral resources that can be found inside the earth and on its surface are discussed in the following part of the article, i.e. in Chapter III. The paper also describes the potential accumulation of rock oil and natural gas during the Permian period. The substantial thickness of rock-salt in the Permian limestone (the upper Permian period) and anhydrites (the Permian limestone and the Triassic period) has been shown as well. The paper provides information on the occurrence of mineralized thermal springs in the Lias deposits (the lower Jurassic period). It has been stressed that their exploitation and utilization offer a chance of economic and recreational development of this region. Mention is also made of the occurrence of brown coal in Miocene deposits. Mineral resources occurring at the groud surface are described in every respect. First erratic boulders are characterized and Fig. 3 shows areas of their increased natural occurrence. A hypothesis has been put forward concerning the occurrence of calcareous sinter strata on the southern shore of Lake Lednickie. Note is also made of the discovery of calcareous sinter strata being now formed of Trląg on the western shore of Lake Pakoskie. Finally areas of probable occurrence of bog iron stone during the Early Middle Ages are selected (Fig. 4). Owing to appropriate utilization of mineral resources there is a chance connecting the tradition of this region with its economic and tourist development in future.
EN
The author reports the results of geological examinations of rock raw materials used for the construction of early medieval objects of sacral architecture in Lubin near Gostyn (Poland) as well as in Roman objects in Lower Mesia (Novae, Nicopolis ad Istrum, Belenie, Oeskus, Jastrus Krivina — Bulgaria). The identification of the kinds of rock raw material used, the finding of their aboriginal exploitation places is of importance to understand the scope of the problems connected with the economy of the civilisation at that time. He argues also about the need of complex research on economical history of societies. He points at the interdependence of the facts deriving from various disciplines and consequently on the integrity of the common knowledge of historical process.
EN
The conservation and reconstruction of stone mediaeval architecture in Greater Poland calls for the distinction of various species of raw rock material and assorted types of mortar. The example of ruin I and II on Lednica Island illustrates the variety of this type of raw material in the foundations and walls, and determines the diversity of the mortar. The application of pétrographie, macroscopic, microscopic and X-ray diffractometric methods made the task in question possible. Ruin I and II on Lednica Island contain quartizite sandstone (53%) which dominates over gneiss (23%) and granites (8%). Gypsum mortar has been found in ruin I, and gypsum, gypsum-lime and lime mortars — in ruin II.
EN
Central Pomerania boasts of almost about 50 extant objects covered with roof slate. The largest group, composed of 15 objects, includes churches built during the nineteenth century. Second place as regards the number of preserved roofs covered with roof slate belongs to residential buildings in Słupsk, Białogard, Koszalin, and Bytow. Roof slate was applied also in many rural residences and cottages erected during the second half of the nineteenth century and at the beginning of the twentieth century. A distinct concentration of such objects occurs along the sea coast, in the counties of Kołobrzeg, Sławno and Słupsk. Presumably, the material in question was supplied by sea routes. In turn, the period of its employment — 187 0 -1 9 2 0 — indicates railway transport.
EN
The article characterises the presence o f stone raw material in particular stages o f the construction o f Poznań cathedral (fig. 4). The authors describe the stone architecture of the entire surrounding o f the cathedral (fig. 2) and devote much attention to architectonic elements, the interior o f the cathedral, and sculpture (fig. 3, 5). The origin o f select stone raw material used in the architecture o f Ostrow Tumski in Poznań is depicted in fig. 1. Hopefully, this article will convince the reader that “mute ” stones can “speak” and become a valuable source for researchers dealing with the past.
EN
Information about the discovery and securing of marble objects in seven lapidaria on the island of Marmara Adasi, known in antiquity as Proconnesus. Despite certain gaps, a uniform policy is applied for the protection of the monuments. The exhibits are recorded in inventories, placed in temporary lapidaria, accessible and prepared for conservation. They comprise a permanent element of the lineage of material culture, harmoniously blended with the surrounding cultural-anthropogenic-natural environment.
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