| Reference Type | Journal (article/letter/editorial) |
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| Access Rights | Open Access |
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| Title | Palaeogene glendonites from Denmark |
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| Journal | Bulletin of the Geological Society of Denmark |
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| Authors | Schultz, Bo Pagh | Author |
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| Vickers, Madeleine L. | Author |
| Huggett, Jennifer | Author |
| Madsen, Henrik | Author |
| Heilmann-Clausen, Claus | Author |
| Friis, Henrik | Author |
| Suess, Erwin | Author |
| Year | 2022 (March 29) | Volume | 68 |
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| Page(s) | 23-35 |
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| Publisher | Geological Society of Denmark |
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| Download URL | https://2dgf.dk/xpdf/bull68-23-35-rev.pdf |
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| DOI | doi:10.37570/bgsd-2020-68-03-revSearch in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 16870160 | Long-form Identifier | mindat:1:5:16870160:7 |
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| GUID | 0 |
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| Full Reference | Schultz, Bo Pagh; Vickers, Madeleine L.; Huggett, Jennifer; Madsen, Henrik; Heilmann-Clausen, Claus; Friis, Henrik; Suess, Erwin (2022) Palaeogene glendonites from Denmark. Bulletin of the Geological Society of Denmark, 68. 23-35 doi:10.37570/bgsd-2020-68-03-rev |
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| Plain Text | Schultz, Bo Pagh; Vickers, Madeleine L.; Huggett, Jennifer; Madsen, Henrik; Heilmann-Clausen, Claus; Friis, Henrik; Suess, Erwin (2022) Palaeogene glendonites from Denmark. Bulletin of the Geological Society of Denmark, 68. 23-35 doi:10.37570/bgsd-2020-68-03-rev |
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| In | (2022) Bulletin of the Geological Society of Denmark Vol. 68. Geological Society of Denmark |
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| Abstract/Notes | Pristinely preserved mineral pseudomorphs called glendonites, up to 1.6 m long, from the Palaeogene strata of Denmark allow detailed crystallographic characterisation and add to the understanding of the transformation of the precursor mineral, ikaite (CaCO3·6H2O), to calcite, which constitutes the glendonite. We describe Danish pseudomorphs after ikaite from two localities and formations: the Early Eocene Fur Formation and the Late Oligocene Brejning Formation. This detailed study highlights that key aspects such as morphology and mode of occurrence of these ancient glendonites are identical to those of their parent mineral ikaite, when it grows in marine sediments. Systematic distortion of the angles in glendonite and marine sedimentary ikaite relative to the ideal ikaite symmetry may arise due to the incorporation of organic matter into the crystal structure, and we demonstrate the similarity between modern and ancient ikaite formation zones in the marine sedimentary realm with respect to organic matter. |
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