Composition of basalts from the pre-Jurassic basement of Western Siberia (West-Tarkosalinskaya area,yamalo-nenets autonomous district)
- DSpace Home
- →
- Геология России
- →
- КиберЛенинка
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
dc.contributor.author | Ponomarev Vladimir Sergeevich | |
dc.contributor.author | Erokhin Yuriy Viktorovich | |
dc.contributor.author | Ivanov Kirill Svyatoslavich | |
dc.date.accessioned | 2019-12-27T11:44:49Z | |
dc.date.available | 2019-12-27T11:44:49Z | |
dc.date.issued | 2017 | |
dc.identifier | https://cyberleninka.ru/article/n/composition-of-basalts-from-the-pre-jurassic-basement-of-western-siberia-west-tarkosalinskaya-area-yamalo-nenets-autonomous-district | |
dc.identifier | Федеральное государственное бюджетное образовательное учреждение высшего образования «Уральский государственный горный университет» | |
dc.identifier.citation | Известия Уральского государственного горного университета, 2017, , 1 (45) | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/9797 | |
dc.description.abstract | This paper presents the first results of study of mineralogical, petrological and geochemical composition of volcanites from pre-Jurassic basement of the West-Siberian megabasin near the West-Tarkosalinsk oil and gas deposit. West-Tarkosalinsk area is located on the territory of Purovsky region of Yamalo-Nenets Autonomous District of Tyumen region. Gubkinsky and Tarko-Sale are the towns nearest to the deposit. Volcanites of the well West-Tarkosalinsk 905 from the depth of 4362-4397 m have a small amount of dolerites present in the upper part of the section, which change to porphyritic basalts with depth. By chemical composition, the studied volcanites belong to moderateand high calc-alkaline basalts and andesibasalts. The rocks have undergone post-magmatic transformation (formation of albite, replacement of volcanic glass with chlorite, development of the secondary carbonate, prehnite, titanite and pumpellyite) under the conditions of prehnite-pumpellyite facies (bottoms of the greenschist facies of metamorphism). Volcanites contain high concentration of (g / t) Ti (up to 8673), V (up to 275), Mn (up to 1304), Zn (up to 95), Sr (up to 231), Zr (up to 162), Ba (up to 397), Ce (up to 41). The content of rare earth elements in rocks is about 59-116 g / t. The trend of distribution of rare earth elements normalized to chondrite for basalts is characterized by a predominance of light lanthanide elements over heavy lanthanide elements and either a lack of (W-Tar 905 / 4396.56), or the presence of a weak negative Eu anomaly. E-MORB basalts have a similar distribution of rare earth elements, but at a lower content of light lanthanide elements. According to petrological and geochemical characteristics, the studied volcanites are similar to the basalts of Koltogorsky-Urengoysky rift of the West-Siberian megabasin. | |
dc.publisher | Федеральное государственное бюджетное образовательное учреждение высшего образования «Уральский государственный горный университет» | |
dc.subject | МИНЕРАЛОГИЯ | |
dc.subject | ГЕОХИМИЯ | |
dc.subject | БАЗАЛЬТЫ | |
dc.subject | ДОЮРСКИЙ ФУНДАМЕНТ | |
dc.subject | ЗАПАДНОТАРКОСАЛИНСКОЕ МЕСТОРОЖДЕНИЕ | |
dc.subject | ЗАПАДНАЯ СИБИРЬ | |
dc.subject | MINERALOGY | |
dc.subject | GEOCHEMISTRY | |
dc.subject | BASALTS | |
dc.subject | PRE-JURASSIC BASEMENT | |
dc.subject | WEST-TARKOSALINSK DEPOSIT | |
dc.subject | WESTERN SIBERIA | |
dc.title | Composition of basalts from the pre-Jurassic basement of Western Siberia (West-Tarkosalinskaya area,yamalo-nenets autonomous district) | |
dc.type | text | |
dc.type | Article | |
dc.subject.udc | 552.323.6+550.42 | |
dc.subject.age | Мезозой::Юрская | ru |
dc.subject.age | Mesozoic::Jurassic | en |
Files in this item
This item appears in the following Collection(s)
-
КиберЛенинка
Метаданные публикаций с сайта https://cyberleninka.ru/