Geological Survey of Denmark and Greenland Bulletin最新文献

{"title":"Miocene deposits at Silkeborg, Jylland, and their influence on hydrology","authors":"P. Jakobsen, E. Rasmussen, K. Dybkjær, J. Kidmose","doi":"10.34194/geusb.v35.4399","DOIUrl":"https://doi.org/10.34194/geusb.v35.4399","url":null,"abstract":"© 2016 GEUS. Geological Survey of Denmark and Greenland Bulletin 35, 9–12. Open access: www.geus.dk/publications/bull A motorway was constructed in 2010–2016 through the suburbs of the city of Silkeborg (Fig. 1). The Danish Road Directorate wished to climate-proof the motorway against adverse future climate changes. The directorate collaborated with the Geological Survey of Denmark and Greenland (GEUS) to study the hydrological conditions. Studies of historical and projected climate-change-driven variations in groundwater levels in relation to urbanised hydrological fluxes were conducted by Kidmose et al. (2013, 2015). During the construction of the motorway, Miocene and Quaternary deposits were exposed in the slopes of the Gudenå valley and late-glacial glaciofluvial deposits were found in the valley floor. This paper focuses on the Miocene sediments and their influence on the local hydrological conditions. At Silkeborg the Gudenå valley is c. 35 m deep (Fig. 1). The surrounding terrain is a till plain. In the slope of the valley, glaciofluvial sand is found below the till. Miocene deposits are found below the glaciofluvial sand. The floor of the Gudenå valley is covered by c. 15 m thick glaciofluvial deposits, which rest on Miocene deposits. In borehole no. DGU 87.907 49 m of Miocene deposits belonging to the Vejle Fjord Formation are recorded, consisting primarily of marine clay with minor occurrences of sandy deposits. About 12 km south of Silkeborg lower Miocene deposits are seen in outcrops and boreholes (Fig. 2). Here the fluvial Addit Member of the Billund Formation (Rasmussen at al. 2010) is separated from the underlying marine Vejle Fjord Formation by a sharp erosional contact (Rasmussen 2014). Miocene deposits at Silkeborg, Jylland, and their influence on hydrology","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"1 1","pages":"9-12"},"PeriodicalIF":0.0,"publicationDate":"2016-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84848597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D hydrogeological modelling for urban subsurface management in Odense, Denmark","authors":"S. Mielby, T. Pallesen, P. Sandersen","doi":"10.34194/geusb.v35.4400","DOIUrl":"https://doi.org/10.34194/geusb.v35.4400","url":null,"abstract":"© 2016 GEUS. Geological Survey of Denmark and Greenland Bulletin 35, 13–16. Open access: www.geus.dk/publications/bull The subsurface material in urban areas comprises the original geological succession together with anthropogenic modifications and deposits. The Geological Survey of Denmark previously performed geological mapping in selected Danish cities (e.g. Mertz 1974), but this practice stopped in the mid-1980s. The lack of recent systematic mapping in urban areas is apparent not only in Denmark but also in most other European countries (COST 2015). However, there is a growing demand for knowledge of the subsurface beneath our cities for a number of reasons: increased urbanisation, infiltration of excess surface water and other climate-change related measures, thermal storage, groundwater cooling and abstraction, subsurface infrastructure, infrastructure projects, etc. The physical properties of the subsurface material are in constant change due to urban growth and infrastructure development. This can strongly influence the geotechnical properties and handling of excess surface water. In order to manage both challenges and opportunities of the ground beneath the cities there is a growing need for 3D hydrogeological models that can encompass all relevant parts of the physical subsurface system and act as operational tools in its management. With the main focus on hydrogeology and the urban water cycle, the Municipality of Odense, the local waterworks (VandCenter Syd), the Geological Survey of Denmark and Greenland (GEUS) and two consultants (Alectia and I-GIS) have made a joint effort to systematically map the subsurface layers and build a 3D hydrogeological model of the subsurface of the city of Odense (Fig. 1). This paper provides an overview of the project rationale and an outline of the major results.","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"26 1","pages":"13-16"},"PeriodicalIF":0.0,"publicationDate":"2016-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80040857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Colophon, contents, preface","authors":"F. Christiansen","doi":"10.34194/geusb.v35.4398","DOIUrl":"https://doi.org/10.34194/geusb.v35.4398","url":null,"abstract":"","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"62 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2016-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80685793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring of pesticide leaching from cultivated fields in Denmark","authors":"Walter Brüsch, A. Rosenbom, N. Badawi, P. Olsen","doi":"10.34194/geusb.v35.4411","DOIUrl":"https://doi.org/10.34194/geusb.v35.4411","url":null,"abstract":"© 2016 GEUS. Geological Survey of Denmark and Greenland Bulletin 35, 17–22. Open access: www.geus.dk/publications/bull The Danish Pesticide Leaching Assessment Programme (PLAP) was initiated in 1998 by the Danish Parliament in order to evaluate whether the use of approved pesticides will result in an unacceptable contamination of the groundwater, if applied under field conditions in accordance with current Danish regulation. In this programme, water samples from variably saturated soil and groundwater collected at five cultivated fields are analysed for selected pesticides and their degradation products. The PLAP results are summarised and evaluated in yearly reports and used by the Danish Environmental Protection Agency in the regulation of pesticides in Denmark (Brüsch et al. 2015). In order to represent typical farming scenarios in Denmark, the test fields are situated on meltwater and marine sands, and on tile-drained clayey soils in till areas.","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"312 1","pages":"17-22"},"PeriodicalIF":0.0,"publicationDate":"2016-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77927350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New zircon U-Pb and Hf isotopic constraints on the crustal evolution of the Skjoldungen region, South-East Greenland","authors":"T. Kokfelt, T. Næraa, K. Thrane, L. Bagas","doi":"10.34194/geusb.v35.4927","DOIUrl":"https://doi.org/10.34194/geusb.v35.4927","url":null,"abstract":"Fig. 1. Geological map of the Skjoldungen region, South-East Greenland, showing locations of samples (blue circles) selected for zircon U-Pb geochronology and zircon Hf isotope analysis. We report new zircon U-Pb and Hf isotopic data from the Skjoldungen region between c. 62°30 ́ and 63°40 ́N in SouthEast Greenland. The work was carried out under the SouthEast Greenland Mineral Endowment Task (SEGMENT); a joint project between the Geological Survey of Denmark and Greenland (GEUS) and the Ministry of Mineral Resources (MMR) in Greenland to assess the mineral endowment and update the geological knowledge of the region using modern petrological, geochemical and geochronological tools. This paper presents new zircon U-Pb and Hf isotopic data from a range of different Archaean rocks in the Skjoldungen region, which greatly improve the understanding of the history of crustal growth.","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"68 1","pages":"55-58"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84109033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The ammonites of the Middle Jurassic Cranocephalites beds of East Greenland","authors":"J. Callomon, P. Alsen, F. Surlyk","doi":"10.34194/geusb.v34.4488","DOIUrl":"https://doi.org/10.34194/geusb.v34.4488","url":null,"abstract":"Thick successions of marine Middle Jurassic deposits rich in ammonites occur in the Jameson Land Basin in central East Greenland. The fauna of the so-called Cranocephalites beds of this basin, comprising the Borealis–Pompeckji Standard Zones, was until now largely represented by a single collection. This was made by T.M. Harris during a 1927 excursion up the valley of Ugleelv to Katedralen, the type area of Cranocephalites pompeckji, which is the oldest named species of this genus. Revisits to this area in 1994 and 1996 by JHC resulted in a large bed-by-bed collection of Cranocephalites. The number of faunal horizons that could be distinguished grew from the nine previously recognised to thirty-four today. The zonal stratigraphy of the Cranocephalites beds encompasses the Borealis, Indistinctus and Pompeckji Standard Zones. The Pompeckji Zone is subdivided into four new subzones, reflecting four successive basic morphologies of Cranocephalites that should be recognisable more widely and are thus useful for subzonal correlations. The detailed zonation that serves as the secondary standard zonation for the Boreal Province in the Middle Jurassic is thus highly improved. The biostratigraphic resolution obtained here is near the achievable limits. It allows a high-resolution study of the evolution of the ammonites which on this timescale appears to be continuous. Three new species are described: Cranocephalites carolae sp. nov., Cranocephalites intermissus sp. nov. and Cranocephalites episcopalis sp. nov. An additional new species, Cranocephalites tvaerdalensis sp. nov., is described in the appendix by P. Alsen based on collections from Tvaerdal on Geographical Society O, North-East Greenland. This species is also recorded in Jameson Land.","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"56 1","pages":"1-86"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89849958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Lower Palaeozoic now fully cored and logged on Bornholm, Denmark","authors":"N. Schovsbo, A. T. Nielsen, K. Klitten","doi":"10.34194/GEUSB.V33.4477","DOIUrl":"https://doi.org/10.34194/GEUSB.V33.4477","url":null,"abstract":"A 558 m long, complete section of the Lower Palaeozoic succession preserved onshore southern Bornholm has been compiled from fi ve fully cored scientifi c wells, carried out between 2005 and 2012. Th e scientifi c programme included coring and geophysical logging of the fi ve scientifi c wells that yielded a total of c. 750 m of partially overlapping cores as well as re-logging of water wells and acquisition of shallow seismic data. Th e last well drilled, the Sommerodde-1, cored the youngest preserved Silurian strata on Bornholm including strata not exposed in outcrops. Th e well penetrated 168.1 m of Silurian shales, 42.7 m of Upper Ordovician shales and 27.9 m of Alum Shale before it terminated at a depth of 250.3 m in the Lower Cambrian Norretorp Member of the Læså Formation. Th e Sommerodde-1 well documents that the Lower Silurian Cyrtograptus shale is at least 91.7 m thick and that the Rastrites shale is 76.4 m thick. Th e complete Lower Cambrian succession has previously been covered by the 316.0 m deep Borggård-1 well that terminated in basement rocks (Nielsen et al. 2006).","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"43 1","pages":"9-12"},"PeriodicalIF":0.0,"publicationDate":"2015-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79004190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acoustic events on a small seismological network – shock waves from thunder and fireballs","authors":"P. Voss, T. Dahl-Jensen, T. Larsen","doi":"10.34194/geusb.v33.4481","DOIUrl":"https://doi.org/10.34194/geusb.v33.4481","url":null,"abstract":"Th e Geological Survey of Denmark and Greenland (GEUS) operates a network of seismic stations in Denmark primarily to detect earthquakes. But from time to time other sources than earthquakes generate seismic signals that are detected at the stations. Here we show that both meteoroids and thunder have generated seismic signals with high signal-to-noise ratios at some of GEUS’ seismic stations (Fig. 1). Th e purpose of the seismic stations is to provide data for the earthquake database of the Kingdom of Denmark, hosted and maintained by GEUS. In order to avoid that the earthquake database is contaminated by other events not related to tectonism, these events are given special markers when possible.","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"12 1","pages":"25-28"},"PeriodicalIF":0.0,"publicationDate":"2015-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81982072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of Survey activities 2014: Colophon, contents, introduction","authors":"F. Christiansen","doi":"10.34194/geusb.v33.4476","DOIUrl":"https://doi.org/10.34194/geusb.v33.4476","url":null,"abstract":"","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"06 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2015-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86081425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark","authors":"B. Lauridsen, K. I. Schnetler","doi":"10.34194/GEUSB.V32.4593","DOIUrl":"https://doi.org/10.34194/GEUSB.V32.4593","url":null,"abstract":". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Previous work on gastropods from the Baunekule facies . . . . . . . . . . . . . . . . . . . . . . . 18 Geological setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Notes on the locality and the Baunekule facies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Remarks on the fauna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Preservation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Number of taxa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Stratigraphic ranges of the genera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Comparison with other Paleocene gastropod faunas . . . . . . . . . . . . . . . . . . . . . . . . . 23 Palaeoecology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Gastropods on modern cold-water coral mounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Concluding remarks and future studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Systematic palaeontology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Abbreviations and classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Phylum Mollusca Linnaeus 1758 Class Gastropoda Cuvier 1795 Clade Vetigastropoda Superfamily Fissurellioidea Fleming 1822 Family Fissurellidae Fleming 1822 Subfamily Fissurellinae Fleming 1822 Genus Rimula Lowe 1852 Rimula? sp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Subfamily Emarginulinae Children 1834 Genus Emarginula Lamarck 1801 Emarginula coralliora Lundgren 1867 . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Superfamily Pleuroromarioidea Swainson 1840 Family Pleurotomariidae Swainson 1840 Genus Leptomaria Eudes-Deslongchamps 1864 Leptomaria niloticiformis (von Schlotheim 1820) . . . . . . . . . . . . . . . . . . 36 Leptomaria sp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Superfamily Haliotoidea Rafinesque 1815 Family Temnotropidae Cox 1960 Genus Temnotropis Laube 1870 Temnotropis sp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Superfamily Porcellioidea Koken 1895 Family Porcellidae Koken 1895 G","PeriodicalId":49199,"journal":{"name":"Geological Survey of Denmark and Greenland Bulletin","volume":"36 1","pages":"001-117"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75394918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}