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EN
This article presents the achievements of the employees of the Holy Cross Mts. Branch of the Polish Geological Institute in the field of applied geology: geological cartography, geology of natural resources and hydrogeology. The area of the Holy Cross Mts. is located in central Poland and for hundreds of years was the main source of metal ores and rock raw materials for the Polish state. Investigating the possibility of using these minerals and raw materials in the modern economy was the reason for establishing the Polish Geological Institute in Kielce. Shortly before World War II, a department of the Institute was established in Kielce for a detailed geological study of this interesting area, where the full profile of the Phanerozoic deposits is present, from the oldest Cambrian to Quaternary. The basic work performed by geologists in Kielce was the preparation of geological maps. During the 80 years of the Institute's activity in Kielce, geological maps on various scales were made, ranging from 1:300,000 to 1:50,000. Currently, detailed mapping at the 1:50,000 and 1: 25,000 scales are being prepared. The search for deposits of iron, copper and other metals, conducted by the Kielce Institute, did not lead unfortunately to discovery of economically useful deposits. On the other hand, large deposits of rock building materials have been identified and documented and are currently exploited mainly for road construction. The region of the Holy Cross Mountains and their vicinity is unique in comparison to other regions of Poland because the entire population and economy are supplied with water from underground sources. Taking care of resources and adequate water quality is the main goal of the hydrogeologists employed at the Holy Cross department of the Polish Geological Institute. They organized and supervise a network that controls the water level and its quality, the impact of quarry activities on the groundwater levels, and prepare various types of hydrogeological maps.
EN
The Holy Cross Mts. and their vicinities is a unique area on the geological map of Europe since rocks of all Phanerozoic systems, including the Cambrian to Quaternary, are exposed there. The variable rock types provide great cognitive and educational opportunities, but also stimulate the exploitation of various types of minerals. On the one hand, mining activities contributed to the recognition and better exposure of rocks, but on the other hand, they often threaten the natural environment and become burdensome for the inhabitants. The study of the balance between environmental protection and human mining activity is carried out by environmental geology, which is an important part of the activity in the Holy Cross Mts. Branch of the Polish Geological Institute (PGI), where various tasks in this field have been carried out for over half a century. The care for protection and promotion of the geological heritage of the Holy Cross Mts has been an important task of geologists working in the Kielce Branch of the PGI throughout its over 80-year history. It is manifested in the legal protection of the most interesting geological areas and geosites, and the promotion of geological knowledge in wide public opinion. The geological education in the Holy Cross Mts. plays a special role because the inanimate nature is a very valuable element of natural environment that distinguishes the Kielce region from other regions of Poland.
EN
Rock samples from four boreholes and three exposures located in the southern peripheries of the Holy Cross Mountains in Poland, from strata representing the lower Cambrian Czarna Shale Formation have been studied palynologically. A relatively numerous and well-preserved lowermost Cambrian microfloral assemblage corresponds to coeval associations known from different palaeocontinents. Our new data enables reinterpretation of the biostratigraphy of the Czarna Formation, a thick rock unit basically devoid of macrofossils. The rocks analysed represent the Terreneuvian and comparison with other lower Cambrian successions indicates the middle and upper part of this oldest Cambrian series. The discovery of Variosphaeridium gen. nov. supplements information about the diversity of lowermost Cambrian microfloral assemblages. The Fimbriaglomerella membranacea-Globosphaeridium cerinum Assemblage Zone is introduced; it has a transitional character between the Asteridium tornatum-Comasphaeridium velvetum and Skiagia ornata-Fimbriaglomerella membranacea assemblage zones distinguished by Moczydłowska (1991) and identified on most Cambrian palaeocontinents.
EN
Kielce is a city situated in the centre of the Holy Cross Mountains, one of the most interesting geological areas in Europe. For this reason, institutions related to mining and geology have been operating here for over 200years. After the establishment of the Polish Geological Institute in 1919 in Warsaw, one of its founders, Jan Czarnocki, took steps to establish a regional branch of the Institute in Kielce, whose aim was to conduct scientific and exploratory research in the Holy Cross Mountains area. These activities were successfully completed in 1937, and since then, with a short break due to the Second World War, a branch of the Polish Geological Institute has been operating in Kielce. Since 1961, its headquarters have been located in a modern building, designed entirely for its needs, which has recently been modernized and expanded. Several dozen people employed in the Holy Cross Branch of the PGI-NRI carry out tasks in the field of applied geology and scientific research, focused on the study of an almost complete succession of Phanerozoic rocks in this region - from the Cambrian the history of the Holy Cross Branch of the PGI-NRI, and to present the most important to the Quaternary. The aim of this article is to provide a brief introduction to data related to the research and accomplishments of the geologists working in Kielce.
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