Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum)
In the north of Pasinler (Erzurum), Upper Miocene-Pliocene volcanic rocks crop out. These volcanites are composed of basaltic andesite, andesite, dacite, rhyolite lavas and rhyolitic pyroclastics. The rocks show porphyritic, microlitic porphyritic, hyalo-microlitic porphyritic, vitrophyric, glomerop...
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| Format: | Article |
| Language: | English |
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Pamukkale University
2009-02-01
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| Series: | Pamukkale University Journal of Engineering Sciences |
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| Online Access: | http://dergipark.ulakbim.gov.tr/pajes/article/view/5000088821 |
| _version_ | 1797908653774209024 |
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| author | Oktay KILIÇ Hüseyin KURT Kürşad ASAN Gürsel KANSUN |
| author_facet | Oktay KILIÇ Hüseyin KURT Kürşad ASAN Gürsel KANSUN |
| author_sort | Oktay KILIÇ |
| collection | DOAJ |
| description | In the north of Pasinler (Erzurum), Upper Miocene-Pliocene volcanic rocks crop out. These volcanites are composed of basaltic andesite, andesite, dacite, rhyolite lavas and rhyolitic pyroclastics. The rocks show porphyritic, microlitic porphyritic, hyalo-microlitic porphyritic, vitrophyric, glomeroporphyritic, pilotaxitic and hyalopilitic textures. The investigated volcanites contain plagioclase (An29-80), olivine (Fo65-82), clinopyroxene (augite), orthopyroxene (enstatite), amphibole (Mg#: 0.57-0.71), biotite (phlogopite: 0.44-0.47, annite: 0.33-0.37), sanidine, quartz and opaque mineral (titano-magnetite and ilmenite). The volcanic rocks are calc-alkaline in character and have medium to high-K contents. Major oxide and trace element variations point out open-system magmatic differentiation in the evolution of rocks. Geochemical data indicate an important role of fractionation of phenocryst phases in the rocks during differentiation process. However, it is considered that assimilation±magma mixing might have accompanied to the process. High LILE (K, Rb, Ba, Th) and relatively low HFSE (Nb, Ta, Hf, Zr) contents of the rocks indicate that these rocks derived from parental magmas carrying subduction signature. |
| first_indexed | 2024-04-10T10:56:00Z |
| format | Article |
| id | doaj.art-0c142477bccf47479f63d18e5538b5c9 |
| institution | Directory Open Access Journal |
| issn | 1300-7009 2147-5881 |
| language | English |
| last_indexed | 2024-04-10T10:56:00Z |
| publishDate | 2009-02-01 |
| publisher | Pamukkale University |
| record_format | Article |
| series | Pamukkale University Journal of Engineering Sciences |
| spelling | doaj.art-0c142477bccf47479f63d18e5538b5c92023-02-15T16:19:56ZengPamukkale UniversityPamukkale University Journal of Engineering Sciences1300-70092147-58812009-02-011522532625000082890Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum)Oktay KILIÇHüseyin KURTKürşad ASANGürsel KANSUNIn the north of Pasinler (Erzurum), Upper Miocene-Pliocene volcanic rocks crop out. These volcanites are composed of basaltic andesite, andesite, dacite, rhyolite lavas and rhyolitic pyroclastics. The rocks show porphyritic, microlitic porphyritic, hyalo-microlitic porphyritic, vitrophyric, glomeroporphyritic, pilotaxitic and hyalopilitic textures. The investigated volcanites contain plagioclase (An29-80), olivine (Fo65-82), clinopyroxene (augite), orthopyroxene (enstatite), amphibole (Mg#: 0.57-0.71), biotite (phlogopite: 0.44-0.47, annite: 0.33-0.37), sanidine, quartz and opaque mineral (titano-magnetite and ilmenite). The volcanic rocks are calc-alkaline in character and have medium to high-K contents. Major oxide and trace element variations point out open-system magmatic differentiation in the evolution of rocks. Geochemical data indicate an important role of fractionation of phenocryst phases in the rocks during differentiation process. However, it is considered that assimilation±magma mixing might have accompanied to the process. High LILE (K, Rb, Ba, Th) and relatively low HFSE (Nb, Ta, Hf, Zr) contents of the rocks indicate that these rocks derived from parental magmas carrying subduction signature.http://dergipark.ulakbim.gov.tr/pajes/article/view/5000088821Pasinler, Mineral kimyası, Jeokimya, Kalkalkali volkanitler. |
| spellingShingle | Oktay KILIÇ Hüseyin KURT Kürşad ASAN Gürsel KANSUN Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum) Pamukkale University Journal of Engineering Sciences Pasinler, Mineral kimyası, Jeokimya, Kalkalkali volkanitler. |
| title | Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum) |
| title_full | Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum) |
| title_fullStr | Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum) |
| title_full_unstemmed | Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum) |
| title_short | Mineral Chemistry and Geochemistry of Volcanic Rocks in The North of Pasinler (Erzurum) |
| title_sort | mineral chemistry and geochemistry of volcanic rocks in the north of pasinler erzurum |
| topic | Pasinler, Mineral kimyası, Jeokimya, Kalkalkali volkanitler. |
| url | http://dergipark.ulakbim.gov.tr/pajes/article/view/5000088821 |
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