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1,116 results for “limestone”
NDVI for Northern Limestone (2013/10/15)
<p>NDVI computation (using Landsat-8 OLI bands: (([NIR]-[R])/([NIR]+[R])), scale factor 0.001. Clip to area of interest. Cloud masking.</p>
NDVI for Northern Limestone (2013/07/27)
<p>NDVI computation (using Landsat-8 OLI bands: (([NIR]-[R])/([NIR]+[R])), scale factor 0.001. Clip to area of interest. Cloud masking.</p>
NDVI for Northern Limestone (2011/08/23)
<p>NDVI computation (using Landsat-5 TM bands: (([NIR]-[R])/([NIR]+[R])), scale factor 0.001. Clip to area of interest. Cloud masking.</p>
NDVI for Northern Limestone (2010/09/21)
<p>NDVI computation (using Landsat-5 TM bands: (([NIR]-[R])/([NIR]+[R])), scale factor 0.001. Clip to area of interest. Cloud masking.</p>
NDVI for Northern Limestone (2010/07/03)
<p>NDVI computation (using Landsat-5 TM bands: (([NIR]-[R])/([NIR]+[R])), scale factor 0.001. Clip to area of interest. Cloud masking.</p>
Data of the characterisation of conventional 87Sr/86Sr isotope ratios in cement, limestone and slate reference materials based on an interlaboratory comparison study
<p>This dataset represents the electronic supplementary material (ESM) of the publication entitled "Characterisation of conventional <sup>87</sup>Sr/<sup>86</sup>Sr isotope ratios in cement, limestone and slate reference materials based on an interlaboratory comparison study", which is published in Geostandards and Geoanalytical Research under the DOI: 10.1111/GGR.12517. It consists of four files. 'ESM_Data.xlsx' contains all reported data of the participants, a description of the applied analytical procedures, basic calculations, the consensus values, and part of the uncertainty assessment. 'ESM_Figure-S1' displays a schematic on how measurements, sequences and replicates are treated for the uncertainty calculation carried out by PTB. 'ESM_Technical-protocol.pdf' is the technical protocol of the interlaboratory comparison, which has been provided to all participants together with the samples and which contains bedside others the definition of the measurand and guidelines for data assessment and calculations. 'ESM_Reporting-template.xlsx' is the Excel template which has been submitted to all participants for reporting their results within the interlaboratory comparison. Excel files with names of the the structure 'GeoReM_Material_Sr8786_Date.xlsx' represent the <em>R</em><sub>con</sub>(<sup>87</sup>Sr/<sup>86</sup>Sr) data for a specific reference material downloaded from GeoReM at the specified date, e.g. 'GeoReM_IAPSO_Sr8786_20221115.xlsx' contains all <em>R</em><sub>con</sub>(<sup>87</sup>Sr/<sup>86</sup>Sr) data for the IAPSO seawater standard listed in GeoReM until 15 November 2022.</p>
Efficiency of the formation of acid-resistant Calcium-oxalate layers on limestone
<p><strong>Scientific background:</strong></p> <p>Carbonate-based stone monuments and buildings are susceptible to weathering in acidic environments. To combat surface corrosion and slow down material deterioration, protective coatings that inhibit calcite dissolution have been proposed. The efficiency and integrity of the coatings was studied by measuring sulfur distribution along the treated surface. Such experiment cannot be efficiently performed with standard SSD PIXE detectors due to high overlap between the strong Ca K x-ray escape peaks and S Kα. For that purpose, a new parallel-beam wavelength dispersive (PB-WDS) X-ray emission spectrometer at JSI have been used which achieves high energy resolution in the eV range and is able to measure S distribution on the surface of treated marble samples.</p> <p><strong>Measurements performed within TNA project:</strong></p> <p>The new PB-WDS X-ray emission spectrometer at J. Stefan Institute (Ljubljana, Slovenia) was used to map the presence of Sulphur on the surface of 13 marble samples treated with different coatings and after exposure to 2% sulfuric acid. Ge(111) crystal analyzer was used in the spectrometer to record the S Ka signal, the overall scan size was 5 × 5 mm<sup>2</sup>.</p> <p><strong>Data files:</strong></p> <p>We are sharing the files produced during measurements. The signal from the detector preamplifier was processed with the XIA DXP-XMAP digital pulse processor. The files are two main formats:</p> <ol> <li>Files containing mapping data. The spectrometer was set to the Bragg angle corresponding to the energy of the S Ka emission line. In a .zip folder, with 4 .mca files for every measured point (extension: _0-Si(Li) detector, _2- PB-WDS spectrometer)</li> <li>High energy resolution spectra recorded at selected points on the sample surface.</li> </ol> <p> </p> <p> </p> <table> <thead> <tr> <th> <p>#</p> </th> <th> <p>Filename</p> </th> <th> <p> </p> </th> </tr> </thead> <tbody> <tr> <td> <p>1</p> </td> <td> <p>VES_A1_5.zip</p> </td> <td> <p>Map of S on VES_A1_5 sample. Ge 111, 100X100 points, 50μm step, 4s/point</p> </td> </tr> <tr> <td> <p>2</p> </td> <td> <p>S_X80_Y85.zip</p> </td> <td> <p>Scan over S Ka and Kb peak on the surface of VES_A1_5 sample. Point position x = 80px, y = 85px</p> </td> </tr> <tr> <td> <p>3</p> </td> <td> <p>VES_A3_5.zip</p> </td> <td> <p>Map of S on VES_A3_5 sample. Ge 111, 100X100 points, 50μm step, 4s/point</p> </td> </tr> <tr> <td> <p>4</p> </td> <td> <p>S_X95_Y33.zip</p> </td> <td> <p>Scan over S Ka and Kb peak on the surface of VES_A3_5 sample. Point position x = 95px, y = 33px</p> </td> </tr> <tr> <td> <p>5</p> </td> <td> <p>VES_A1_12.zip</p> </td> <td> <p>Map of S on VES_A1_12 sample. Ge 111, 40x40 points, 125μm step, 5s/point</p> </td> </tr> <tr> <td> <p>6</p> </td> <td> <p>S_X3_Y3.zip</p> </td> <td> <p>Scan over S Ka and Kb peak on the surface of VES_A1_12 sample. Point position x = 3px, y = 3px. Z position optimized to maximum at this point</p> </td> </tr> <tr> <td> <p>7</p> </td> <td> <p>S_X20_Y20.zip</p> </td> <td> <p>Scan over S Ka and Kb peak on the surface of VES_A1_12 sample. Point position x = 20px, y = 20px. Z position optimized to maximum at this point</p> </td> </tr> <tr> <td> <p>8</p> </td> <td> <p>S_X35_Y20.zip</p> </td> <td> <p>Scan over S Ka and Kb peak on the surface of VES_A1_12 sample. Point position x = 35px, y = 20px. Z position optimized to maximum at this point</p> </td> </tr> <tr> <td> <p>9</p> </td> <td> <p>CAR_A1_12.zip</p> </td> <td> <p>Map of S on VES_A1_12 sample. Ge 111, 80x80 points, 65μm step, 4s/point</p> </td> </tr> <tr> <td> <p>10</p> </td> <td> <p>CAR_A1_12_back_side.txt</p> </td> <td> <p>Scan over S Ka and Kb peak on the back surface of CAR_A1_12 sample.</p> </td> </tr> <tr> <td> <p>11</p> </td> <td> <p>VES_A1_12_Washed.zip</p> </td> <td> <p>Sample washed under running water. 2250 eV - 2350 eV; stepsize = 1.00eV; 6s/point or 10s/point for back</p> </td> </tr> <tr> <td> <p>12</p> </td> <td> <p>VES_A2_12.zip</p> </td> <td> <p>Line map of S on VES_A2_12. 10x1 points, 1mm stepsize, 10s/point</p> </td> </tr> <tr> <td> <p>13</p> </td> <td> <p>CAR_A3_5.zip</p> </td> <td> <p>Line map of S on CAR_A3_5. 10x1 points, 1mm stepsize, 10s/point</p> </td> </tr> <tr> <td> <p>14</p> </td> <td> <p>CAR_A1_5.zip</p> </td> <td> <p>Line map of S on CAR_A1_5. 10x1 points, 1mm stepsize, 10s/point1</p> </td> </tr> <tr> <td> <p>15</p> </td> <td> <p>VES_A3_12.zip</p> </td> <td> <p>Line map of S on VES_A3_12. 10x1 points, 1mm stepsize, 10s/point + Map of S on VES_A3_12 sample. Ge 111, 50x25 points, 200μm step, 3s/point</p> </td> </tr> <tr> <td> <p>16</p> </td> <td> <p>VES_A2_5.zip</p> </td> <td> <p>Line map of S on VES_A2_5. 5x1 points, 1mm stepsize, 10s/point</p> </td> </tr> <tr> <td> <p>17</p> </td> <td> <p>CAR_A2_5.zip</p> </td> <td> <p>Line map of S on CAR_A2_5. 5x1 points, 1mm stepsize, 10s/point</p> </td> </tr> <tr> <td> <p>18</p> </td> <td> <p>CAR_A2_12.zip</p> </td> <td> <p>Line map of S on CAR_A2_12. 5x1 points, 1mm stepsize, 10s/point</p> </td> </tr> <tr> <td> <p>19</p> </td> <td> <p>CAR_A3_12.zip</p> </td> <td> <p>Line map of S on CAR_A3_12. 5x1 points, 1mm stepsize, 10s/point</p> </td> </tr> </tbody> </table> <p> </p>
FIG. 10 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 10. — Elder ungulatus (Münster, 1839). Specimen MNHN.F.A33549 under UV light. Scale bar: 1 cm. Photograph: L. Cazes.
FIG. 7 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 7. — Other Erymoidea from the Late Jurassic Solnhofen Lithographic Limestones (Bavaria, Germany): A-C, specimen MNHN.GG.2004/8245 of Palaeastacus fuciformis (Schlotheim, 1822) from Solnhofen: specimen in natural light (A), specimen in UV light (B) and line drawing (C); D, specimen MNHN.F.B13445 of Pustulina minuta (Schlotheim, 1822) from Solnhofen in UV light. Abbreviations: a1, antennule; a2, antenna; e, eye; Mxp3, third maxillipeds; P1-P5, periopods 1 to 5. Scale bars: A-C, 1 cm; D, 0.5 cm. Photographs: L. Cazes. Line drawing: J. Devillez.
FIG. 8 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 8. — Mecochirus longimanatus (Schlotheim, 1820): A, B, specimen MNHN.F.A33537; A, specimen in natural light; B, specimen in UV light; C, specimen MNHN.F.B13457; D-F, specimen MNHN.F.A70929; D, general view in UV light; E, view of the carapace in natural light; F, line drawing of the carapace; G, H, specimen MNHN.F.A33539; G, specimen in natural light; H, specimen in UV light. Abbreviations: ac, antennal carina; e1e, cervical groove; gc, gastro-orbital carina; oc, orbital carina. Scale bars: 1 cm. Photographs: L. Cazes. Line drawing: G.P. Odin.
FIG. 4 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 4. — Antrimpos undenarius Münster, 1839 from Nusplingen, housed at the MNHN: A, picture of the old label; B, C, specimen MNHN.F.A49615; B, natural light picture; C, line-drawing of the grooves; D, specimen MNHN.F.A49610; E, specimen MNHN.F.A49622; F, G, specimen MNHN.F.A49608; F, UV picture; G, line-drawing of the rostrum; H, specimen MNHN.F.A49624. Abbreviations: b, antennal groove; b1, hepatic groove; ct, cephalothorax; e1e, cervical groove; hs, hepatic spine; r, rostrum; rs, rostral spines; s1-s5, pleonal somites; ss, supraorbital spine. Scale bars: B-F, H, 1 cm; G, 2 cm. Photographs: L. Cazes (except A: G. P. Odin). Line drawing: G. P. Odin.
FIG. 5 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 5. — Antrimpos undenarius Münster, 1839 from Nusplingen, housed at the SMNS: A, specimen SMNS 80480; B, specimen SMNS 80481; C, specimen SMNS 80482; D, specimen SMNS 80483; E, specimen SMNS 24228; F, specimen SMNS 66122. Scale bars: A-F, 2 cm. Photographs: G. Schweigert.
FIG. 1. — A-C in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 1. — A-C, Aeger tipularius (Schlotheim, 1822), specimen MNHN.F.A33509 from Solnhofen; A, natural light; B, interpretation of the carapace grooves; C, UV light; D, Aeger spinipes (Desmarest, 1817), specimen MNHN.F.B13442 from Solnhofen; E, F, Aeger insignis Oppel, 1862, specimen MNHN.GG.2004/57291 from Solnhofen; E, natural light; F, UV light. Scale bars: A, C, 1 cm; B, D, 2 cm; E, 3 cm. Abbreviations: a, branchiocardiac groove; b, antennal groove; b1, hepatic groove; e1e, cervical groove. Photographs: L. Cazes. Line drawing: G.P. Odin.
FIG. 3 in On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d'Histoire naturelle, Paris
FIG. 3. — Antrimpos speciosus Münster, 1839: A-C, specimen MNHN.F.A33504 from Eichstätt: A, visible light; B, UV light; C, line drawing of the specimen; D, E, specimen CM-33420 likely coming from Solnhofen (Robalino et al. 2016); D, visible light; E, interpretation of the carapace; F, specimen from Solnhofen (illustrated in Schweigert 2015: fig. 568; private collection of Roger Frattigiani); G, H, specimen MNHN.F.A33519 from Solnhofen; G, full view of the specimen; H, close-up of muscle fibers. Abbreviations: a, branchiocardiac groove; a2, antenna; b, antennal groove; b1, hepatic groove; e1e, cervical groove; egs, epigastric spine; hs, hepatic spine; r, rostrum; rs, rostral spines; sc, scaphocerite; ss, supraorbital spine; Grey line of drawing, hypothesized delimitation. Photographs: L. Cazes (except D: M. McNaugher and F: G. Schweigert). Line drawings: G.P. Odin. Scale bars: A-C, F, G: 2 cm; D, E, H, 1 cm.
Fig. 44 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 44. Parvihebetoceras wahli Kröger, 2007, PMU 26949, Kallholn, Boda Limestone. A. Lateral view. B. Adapical view. C. Median section with one septum preserved. Scale bar = 5 mm for all figures.
Fig. 45 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 45. Hypothesis about the phylogenetic relationship of selected Ascocerida and Barrandeocerida. Note the phylogenetic trend of decoiling in ascocerids. The diversification of ascocerids occurred during the late Mid Ordovician. Star = truncation; 1 = thin subcentral siphuncle with orthocerid-like thin connecting ring; 2 = uncoiling. The close phylogenetic relationship between the uranoceratid Warburgoceras gen. nov. and ascocerids is based on the general similarity of shell shape, ornamentation, sipho-position and connecting ring shape of Redpathoceras Flower, 1963. Note also that Montyoceras titaniforme Flower, 1941 is larger, more rapidly expanding and more strongly coiled than the type of the genus, and thus much more similar to Redpathoceras. Figures of Hebetoceras Flower, 1941; Montycoceras Flower, 1941; Probillingsites Flower, 1941; Billingsites Hyatt, 1884; Schuchertoceras Miller, 1932; and Ascoceras Barrande, 1847 are modified from Kesling (1961). Figures of Choanoceras Lindström, 1890 are based on Furnish & Glenister (1964a); those of Deckeroceras Foerste, 1935 and Barrandeoceras Flower, 1950 are based on Sweet (1964a).
Fig. 41 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 41. Redpathoceras bullatum sp. nov., PMU 26926, Kallholn, Boda Limestone. A. Polished median section of detail of the septal neck and connecting ring. B. Reconstruction of A. C. Reconstruction of the total truncated fragment. Scale bar: A-B = 1 mm.
Fig. 39 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 39. Ascocerida and Uranoceratidae of the Boda Limestone. A-B. Redpathoceras bullatum sp. nov. A. PMU 26923, holotype, Kallholn; mature truncated body chamber, lateral view. B. Same specimen, view from antispihuncular side. C. Warburgoceras longitudinale (Angelin in Angelin & Lindström, 1880) comb. nov., NRM-PZ Mo 154065, Unskarsheden; mature body chamber and part of phragmocone in lateral view. D-E. Probillingsites scandinavicum sp. nov., PMU 26922, holotype, Kallholn. D. Mature truncated body chamber, lateral view. E. Same specimen, view from prosiphuncular side. F. Schuchertoceras fryi sp. nov., PMU 24744, holotype, Kalllholn, lateral view. Scale bars: A-E =10 mm; F = 10 mm.
Fig. 38 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 38. Morphological variation of Siljanoceras gen. nov. Black dots = Siljanoceras varians sp. nov.; grey dot = Siljanoceras sp. A.
Fig. 37 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 37. Detail of ornamentation of Siljanoceras varians sp. nov., PMU 26913, Kallholn, Boda Limestone; position of apex down. Scale bar = 10 mm.
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