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| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
1988
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| Accesso online: | https://doi.org/10.1594/PANGAEA.756859 |
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| _version_ | 1867170911827787776 |
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| author | Gorbunova, Zinaida N |
| author_facet | Gorbunova, Zinaida N |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Considerable postsedimentational alteration of fine dispersed minerals in Cretaceous sedimentary sequences was found in three deep-sea drillholes (163, 164, 169). Original Fe-montmorillonites formed from basalts were converted during lithification to mixed-layer montmorillonite-hydromicas and then to pure hydromicas (celadonites). An assumption that the minerals were originally of authigenic-diagenetic composition is based on a broad spectrum of other diagenetic minerals present: silica group from opal A to opal CT and quartz, clinoptilolite and palygorskite. In addition, quartz-hydromica ratio is strikingly atypical of aeolian transport. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_756859 |
| institution | PANGAEA |
| language | en |
| publishDate | 1988 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Chemical composition of samples from DSDP Holes 16-163 and 17-164 Gorbunova, Zinaida N 16-163; 17-164; Aluminium/(Aluminium+Iron+Manganese) ratio; Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Iron/Aluminium ratio; Iron oxide, Fe2O3; Latitude of event; Leg16; Leg17; Longitude of event; Magnesium/Aluminium ratio; Magnesium oxide; Manganese oxide; North Pacific/CONT RISE; North Pacific Ocean; Potassium oxide; Sample code/label; Sample type; Silicon dioxide; Sodium oxide; Titanium/Aluminium ratio; Titanium dioxide; X-ray fluorescence (XRF) Considerable postsedimentational alteration of fine dispersed minerals in Cretaceous sedimentary sequences was found in three deep-sea drillholes (163, 164, 169). Original Fe-montmorillonites formed from basalts were converted during lithification to mixed-layer montmorillonite-hydromicas and then to pure hydromicas (celadonites). An assumption that the minerals were originally of authigenic-diagenetic composition is based on a broad spectrum of other diagenetic minerals present: silica group from opal A to opal CT and quartz, clinoptilolite and palygorskite. In addition, quartz-hydromica ratio is strikingly atypical of aeolian transport. |
| title | Chemical composition of samples from DSDP Holes 16-163 and 17-164 |
| topic | 16-163; 17-164; Aluminium/(Aluminium+Iron+Manganese) ratio; Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Iron/Aluminium ratio; Iron oxide, Fe2O3; Latitude of event; Leg16; Leg17; Longitude of event; Magnesium/Aluminium ratio; Magnesium oxide; Manganese oxide; North Pacific/CONT RISE; North Pacific Ocean; Potassium oxide; Sample code/label; Sample type; Silicon dioxide; Sodium oxide; Titanium/Aluminium ratio; Titanium dioxide; X-ray fluorescence (XRF) |
| url | https://doi.org/10.1594/PANGAEA.756859 |