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| Main Authors: | , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2011
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.770293 |
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| _version_ | 1867169504042156032 |
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| author | Weber, Michael E Tougiannidis, Nikolaos Ricken, Werner Rolf, Christian Oikonomopoulos, Ioannis Antoniadis, Prodromos |
| author_facet | Weber, Michael E Tougiannidis, Nikolaos Ricken, Werner Rolf, Christian Oikonomopoulos, Ioannis Antoniadis, Prodromos |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Time control is essential for the reconstruction of geological processes. We use a combination of relative and absolute methods to establish the chronology and related paleoclimatic processes for Late Neogene lacustrine sediment from the Ptolemais Basin, northern Greece. We determined changes in magnetic polarity and correlated them to the global magnetic polarity time scale, which again is calibrated by radiometric methods, to provide a low-resolution age model for the Upper Miocene to Lower Pliocene (7 - 3 Ma). Sedimentary successions show rhythmic alterations of lignites, clays, and marls. Using photospetrometry we measured this variability at 1-cm resolution, and correlated the pattern to known changes in earth's orbital parameters, namely to eccentricity and precession. For 230-m long borehole KAP-107 from the Amynteon Sub-Basin we obtained a high-resolution age model that spans 2 myr from 5.1 to 3.1 Ma, with age control points at insolation maxima (20-kyr resolution). We recommend using photospectrometry as reliable tool to establish orbital-based chronologies and to reconstruct paleoclimate variability at high resolution. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_770293 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Orbital control on carbonate-lignite cycles on sediment core KAP-107 in the Ptolemais Basin, northern Greece Weber, Michael E Tougiannidis, Nikolaos Ricken, Werner Rolf, Christian Oikonomopoulos, Ioannis Antoniadis, Prodromos DRILL; Drilling/drill rig; KAP-107; Ptolemais Basin, northern Greece Time control is essential for the reconstruction of geological processes. We use a combination of relative and absolute methods to establish the chronology and related paleoclimatic processes for Late Neogene lacustrine sediment from the Ptolemais Basin, northern Greece. We determined changes in magnetic polarity and correlated them to the global magnetic polarity time scale, which again is calibrated by radiometric methods, to provide a low-resolution age model for the Upper Miocene to Lower Pliocene (7 - 3 Ma). Sedimentary successions show rhythmic alterations of lignites, clays, and marls. Using photospetrometry we measured this variability at 1-cm resolution, and correlated the pattern to known changes in earth's orbital parameters, namely to eccentricity and precession. For 230-m long borehole KAP-107 from the Amynteon Sub-Basin we obtained a high-resolution age model that spans 2 myr from 5.1 to 3.1 Ma, with age control points at insolation maxima (20-kyr resolution). We recommend using photospectrometry as reliable tool to establish orbital-based chronologies and to reconstruct paleoclimate variability at high resolution. |
| title | Orbital control on carbonate-lignite cycles on sediment core KAP-107 in the Ptolemais Basin, northern Greece |
| topic | DRILL; Drilling/drill rig; KAP-107; Ptolemais Basin, northern Greece |
| url | https://doi.org/10.1594/PANGAEA.770293 |