Core scan image analysis corrected for cracks, ODP Hole 154-926C
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2015
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| _version_ | 1867169106058280960 |
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| author | Zeeden, Christian Hilgen, Frederik J Röhl, Ursula Seelos, Klemens Lourens, Lucas Joost |
| author_facet | Zeeden, Christian Hilgen, Frederik J Röhl, Ursula Seelos, Klemens Lourens, Lucas Joost |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Drill cores are essential for the study of deep-sea sediments and on-land sites because often no suitable outcrop is available or accessible. These cores form the backbone of stratigraphical studies using and combining various dating techniques. Cyclostratigraphy is usually based on fast and inexpensive measurements of physical sediment properties. One indirect but highly valuable proxy for reconstructing the sediment composition and variability is sediment color. However, cracks and other disturbances in sediment cores may dramatically influence the quality of color data retrieved either directly from photospectrometry or derived from core image analysis. Here we present simple but powerful algorithms to extract color data from core images, and focus on routines to exclude cracks from these images. Results are discussed using the example of an ODP core from the Ceara Rise in the Central Atlantic. The crack correction approach presented highly improves the quality of color data and allows the easy incorporation of cracked cores into studies based on core images. This facilitates the quick and inexpensive generation of large color datasets directly from quantified core images, for cyclostratigraphy and other purposes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_848008 |
| institution | PANGAEA |
| language | en |
| publishDate | 2015 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Core scan image analysis corrected for cracks, ODP Hole 154-926C Zeeden, Christian Hilgen, Frederik J Röhl, Ursula Seelos, Klemens Lourens, Lucas Joost 154-926C; DeCrack routine; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Greyscale value; Joides Resolution; Leg154; Multi-Sensor Core Logger (MSCL), GEOTEK; North Atlantic Ocean; Ocean Drilling Program; ODP; Sample code/label Drill cores are essential for the study of deep-sea sediments and on-land sites because often no suitable outcrop is available or accessible. These cores form the backbone of stratigraphical studies using and combining various dating techniques. Cyclostratigraphy is usually based on fast and inexpensive measurements of physical sediment properties. One indirect but highly valuable proxy for reconstructing the sediment composition and variability is sediment color. However, cracks and other disturbances in sediment cores may dramatically influence the quality of color data retrieved either directly from photospectrometry or derived from core image analysis. Here we present simple but powerful algorithms to extract color data from core images, and focus on routines to exclude cracks from these images. Results are discussed using the example of an ODP core from the Ceara Rise in the Central Atlantic. The crack correction approach presented highly improves the quality of color data and allows the easy incorporation of cracked cores into studies based on core images. This facilitates the quick and inexpensive generation of large color datasets directly from quantified core images, for cyclostratigraphy and other purposes. |
| title | Core scan image analysis corrected for cracks, ODP Hole 154-926C |
| topic | 154-926C; DeCrack routine; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Greyscale value; Joides Resolution; Leg154; Multi-Sensor Core Logger (MSCL), GEOTEK; North Atlantic Ocean; Ocean Drilling Program; ODP; Sample code/label |
| url | https://doi.org/10.1594/PANGAEA.848008 |