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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
1979
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| Online Access: | https://doi.org/10.1594/PANGAEA.776048 |
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| _version_ | 1867168102654935040 |
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| author | Simanovich, Igor M |
| author_facet | Simanovich, Igor M |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Secondary potassium feldspar (K-feldspar) in oceanic basalts represented by low-temperature sanidine with low content of albite molecule. K-feldspar replaces nucleus of phenocrysts and large microlites of plagioclase. Occurrence of K-feldspar increases with age of rocks; in Pliocene and Pleistocene basalts from zones of mid-ocean ridges K-feldspar is absent. K-feldspar is developed in basalts of various geological, textural and structural types. Correlation of K-feldspar occurrence with primary alkalinity of basalts is absent. High (1-6%) contents of K2O in basalts in almost all cases are associated with development of K-feldspars in them. In basalts containing K-feldspars, a clear correlation between K2O and H2O (R = 0.55) is observed. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_776048 |
| institution | PANGAEA |
| language | en |
| publishDate | 1979 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 2) Chemical composition of potassium feldspars from DSDP Hole 19-192A Simanovich, Igor M 19-192A; Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Calculated; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg19; Microprobe; North Pacific/GUYOT; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Sum Secondary potassium feldspar (K-feldspar) in oceanic basalts represented by low-temperature sanidine with low content of albite molecule. K-feldspar replaces nucleus of phenocrysts and large microlites of plagioclase. Occurrence of K-feldspar increases with age of rocks; in Pliocene and Pleistocene basalts from zones of mid-ocean ridges K-feldspar is absent. K-feldspar is developed in basalts of various geological, textural and structural types. Correlation of K-feldspar occurrence with primary alkalinity of basalts is absent. High (1-6%) contents of K2O in basalts in almost all cases are associated with development of K-feldspars in them. In basalts containing K-feldspars, a clear correlation between K2O and H2O (R = 0.55) is observed. |
| title | (Table 2) Chemical composition of potassium feldspars from DSDP Hole 19-192A |
| topic | 19-192A; Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Calculated; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg19; Microprobe; North Pacific/GUYOT; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Sum |
| url | https://doi.org/10.1594/PANGAEA.776048 |