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Abstract. Indicators of r area are registered by the measuring instruments of the SRC PAS (Space Research Centre of Polish Academy of Sciences) Geodynamic Laboratory tal pendulums (since 1974) and over 10 years of observations from water-tube tiltmeters (since 2002) have documented irregularly repeatable strong signals related to the relative displacement of blocks in the rock substrate, d. These signals have dip (rotational) and vertical strike-slip components. Also, the presence of a horizontal strikeslip component is evidenced by geometric anomalies (deformations) of the the orientation of the main faults in the area. Recent geodynamic activity is documented by destruction of the construction elements in the castle complex. Instrumental indicators of movement, geodetic measurements and structural analysis of the rock massif have allowed for constructing a model showing the main unconformity surfaces in the analysed rock massif. Sinistral, NE SW and ENE WSW-oriented strike-slip faults prevail in the laboratory corridors, along with perpendicular WNW ESE and NW SSE-oriented dextral and normal faults. Most dislocations are accompanied by zones of intense cataclasys, secondary silification, and Fe and Mn mineralization. Generally, the faults were formed due to reactivation of joint fractures cutting the steeply N-and S-dipping (at 75

While the history, techniques of exploitation and deposit parameters of the copper ores in the North-Sudetic Synclinorium have been the subject of numerous investigations, the transformations of the terrain in the so-called “Old Copper Basin” (Lower Silesia, SW Poland) have not been analysed in detail before. This paper is intended to complement this gap. The authors present the results of the detailed geomorphometric analysis of the post-mining forms related directly to the copper mining. The LiDAR-based, high-resolution Digital Terrain Models (DTMs), which have been used in the analysis and description of the landforms, are currently considered as the most accurate and precise 3D-spatial data available in the numerical form. The following anthropogenic forms are distinguished in the study area: large- and small-scale ground deformations (depressions and small sinkholes), abandoned quarries, and forms associated with the exploitation and storage of the flotation wastes – post-flotation tailings and dumps. Our investigations have allowed visualization of the spatial distribution of the forms, estimation of their total volume as well as perspectives of their reclamation and protection.

1 Uni ver sity of Wroc³aw, In sti tute of Geo log i cal Sci ences, De part ment of Struc tural Ge ol ogy and Geo log i cal Map ping, pl. M. Borna 9, 50-204 Wroc³aw, Po land Kowalski, A., 2017. Fault ge om e try and ev i dence of depocentre mi gra tion within a transtensional intra-basinal high -a case study from the £¹czna Anticline (Intrasudetic Synclinorium, SW Po land). Geo log i cal Quar terly, 61 (4): 779-794, doi: 10.7306/gq.1372The pa per pres ents the re sults of geo log i cal map ping and a de tailed struc tural anal y sis car ried out in the £¹czna Anticline.This el e vated re gion co in cides with the Zawory (Cz. Závora) moun tain range in the Cen tral Sudetes (SW Po land). The £¹czna Anticline sep a rates two mi nor geo log i cal units (de pres sions) within the north west ern part of the Intrasudetic Synclinorium -the Krzeszów and the Po lice brachysynclines. In nu mer ous ex po sures of Tri as sic and Up per Cre ta ceous sed i men tary rocks, sev eral brit tle and a few soft-sed i ment de for ma tion struc tures have been rec og nized. Their ori en ta tion and spa tial dis tri bu tion sug gest that the £¹czna Anticline is a horst-like, intra-basinal high, formed due to per ma nent ex tension, dextral strike-slip move ments within fault zones, and neg a tive flower struc tures. The stud ies did not con firm the oc currence of con tin u ous de for ma tions such as an ti cli nal bends and flex ures. The re sults show that the pres er va tion of some lithological va ri et ies of sed i men tary rocks within mod ern mor pho log i cal and struc tural el e va tions re flects the mi gra tion of cen tres of max i mum sub si dence within a pull-apart ba sin sys tem. A new struc tural and geodynamic in ter pre ta tion for the £¹czna Anticline area is pro posed.

The paper presents the results of fieldwork and geodetic surveys carried out on a landslide in Wleń (Western Sudetes, Izerskie Foothills). This reactivated landslide occured firstly in 2011 and later on 16th July 2016, following heavy rainfall in the Lower Silesia region, and covered an area of ca. 1100 m 2 above the renovated "Leśny Dwór" guesthouse in Wleń town. The main scarp of the landslide is built of strongly deformed Upper Permian (Zechstein) heterolithic deposits, composing the marginal part of the Wleń Graben -a NW-SE elongated, tectonic subunit within the North Sudetic Synclinorium. The landslide was a consequence of undercutting of steep slopes of the Bóbr River valley by anthropogenic activities and loading of the slope surface by blocks and pedestrian paths in the vicinity of the guesthouse. Monitoring of landslide activity was performed using the initial surface model of the slope subjected to mass movements, LiDAR elevation data, as well as 3D point cloud data from a nonmetric camera on an Unmanned Aerial Vehicle (UAV). They were used to construct digital elevation models (DEMs) of the area covered by the landslide. The DEM from photogrammetric UAV data was processed using Structure from Motion (SfM) technology. The obtained dataset was verified by additional measurement series from terrestrial laser scanning (TLS). Cite this article as: KowalskiA, Wajs J, Kasza D: Monitoring of anthropogenic landslide activity with combined UAV and LiDAR-derived DEMs -a case study of the Czerwony Wawóz landslide (SW Poland, Western Sudetes).

In this contribution the author presents the results of geological and geomorphological field mapping and structural analyses conducted within the area of a newly recognized landslide situated near Włodowice, in the southern part of the Nowa Ruda Basin (Central Sudetes, SW Poland). The landform is located within the eastern limb of the Intra-Sudetic Synclinorium (Nowa Ruda Monocline) built of Upper Carboniferous to Lower Permian (Rotliegend) sedimentary rocks. Geomorphological characteristics of the landslide are presented, but the greatest attention is paid to the way of transformation of individual structural elements of basement rocks (bedding surfaces, sets of fractures) by mass movements. The study allows recognition and interpretation of landslide type according to failure mechanism – the analysed form represents a typical translational landslide with a flat, structural slip surface related to bedding planes. A model of the development of a translational landslide under specific geological conditions (monoclinal structure built of different lithological varieties of sedimentary rocks with different rheological properties) is presented. Due to the partial exposure of the slip surface in the upper and lower parts of the landslide, the form should be considered unique among the previously identified landslides in the Sudetes Mts. During this study the author repeatedly confirms the usefulness of analyses of LiDAR models in landslide investigations.

<p>Ephemeral fluvial systems dominated by seasonal discharge fluctuations and episodic events of rapid flood flows are typical for arid to semi-arid climatic conditions. Dryland fluvial systems have been described from many ancient and modern, predominantly tectonically-controlled sedimentary basins across the globe. The author shows the results of detailed sedimentological analysis and palaeoenvironmental interpretation of the Early Permian (Rotliegend) Krajanów Formation exposed within a continental, fault-bounded Intra-Sudetic Basin (ISB), NE Bohemian Massif. This basin started its development in the middle Viséan (Turnau et al., 2002), as an narrow, intramontane trough and underwent complex evolution from Early Carboniferous to Late Cretaceous. The maximum stratigraphic thickness of the basin infill reaches about 11 0000 metres (Nemec et al., 1982). During the Early Permian the ISB constituted a semi-enclosed, south-western outlier of the Polish Rotliegend Basin (Southern Permian Basin of Central Europe). The Permian sedimentary-volanogenic succession of the ISB exhibits distinct, large-scale cyclic structure and comprises successive, fining-upwards continental megacyclothems (megasequences) up to 600 metres thick (Awdankiewicz et al., 2003). Such megacyclic structure is thought to have originated from tectonic activity and is attributed to relatively rapid, fault-controlled subsidence of the basin floor (Nemec et al., 1982; Wojewoda and Mastalerz, 1989).</p> <p>The Krajanów Formation is composed of fluvial, playa-like and lacustrine deposits which form one of such fining-upwards cyclothems and attain up to 300 m in thickness. Sediments of the lowermost part of the Formation are represented by coarse-grained fluvial red-bed assemblage. Early investigations described these sediments as fluvial in origin. The upper part of the Formation distinguished as the <em>Upper Anthracosia Shale</em>, is characterized by the mudstone-dominated siliciclastics interbedded with fine-grained calcareous deposits which acummulated in a floodplain-to-ephemeral („terminal”) lacustrine setting.</p> <p>High-resolution sedimentological logging and facies analysis indicate that the Early Permian fluvial system in the study area was dominated by ephemeral fluvial processes influenced strongly by semi-arid to arid climate. Rapid (catastrophic?) flood events led to episodic sedimentation of poorly channelized, laterally extensive sheet-like bodies of sandstone as well as vertically and laterally amalgamated fluvial channel infills, with abundant upper-flow regime structures. The overbank deposits are poorly preserved due to the frequent lateral shifting of the channels. Soft sediment deformational structures formed due to events of river bank collapse as well as debris-flow facies point to high-energy, waning flows. It is concluded that deposition occurred on a broad, terminal-type alluvial fans, probably in their proximal- to medial sub-environments. Petrographic composition and measured paleocurrent directions show that the sediment was sourced from the framing massifs – the Sowie Mts. Block to the east and a hypothetical Southern Massif to the south/south-east.</p> <p>The research was funded by the Polish National Science Centre (Grant 2017/26/M/ST10/00646).</p> <p>References</p> <p>Awdankiewicz, M., Kurowski, L., Mastalerz, K., Raczyński, P., 2003: Geolines 16, 165–183;</p> <p>Nemec, W., Porębski, S.J., Teisseyre, A.K., 1982: Veröff. Zentralinst. Erde, Potsdam, 267–278;</p> <p>Turnau, E., Żelaźniewicz, A., Franke, W., 2002: Geologia Sudetica 34, 9–16;</p> <p>Wojewoda, J., Mastalerz, K., 1989: Przegląd Geologiczny 432, 173–180.</p>