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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geology</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Геология и разведка</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of higher educational establishments. Geology and Exploration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0016-7762</issn><issn pub-type="epub">2618-8708</issn><publisher><publisher-name>Sergo Ordzhonikidze Russian State University for Geological Prospecting</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32454/0016-7762-2019-5-36-49</article-id><article-id custom-type="elpub" pub-id-type="custom">geology-460</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МИНЕРАЛОГИЯ, ПЕТРОГРАФИЯ, ЛИТОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MINERALOGY, PETROGRAPHY, LITHOLOGY</subject></subj-group></article-categories><title-group><article-title>Оксидные минералы кимберлитов Каави (Финляндия)</article-title><trans-title-group xml:lang="en"><trans-title>Oxide minerals of Kaavi kimberlites (Finland)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Азарова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Azarova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>1, Лениские горы, г. Москва 119234</p></bio><bio xml:lang="en"><p>GSP-1, Leninskie Gory, Moscow 119991</p></bio><email xlink:type="simple">nadiya-azarova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бовкун</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bovkun</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>1, Лениские горы, г. Москва 119234</p></bio><bio xml:lang="en"><p>GSP-1, Leninskie Gory, Moscow 119991</p></bio><email xlink:type="simple">bovkun2004@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаранин</surname><given-names>В. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Garanin</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>18, к. 2, Ленинский проспект, г. Москва 119071</p></bio><bio xml:lang="en"><p>building 2, 18, Leninsky Prospect, Moscow 119071</p></bio><email xlink:type="simple">vgaranin@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Варламов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Varlamov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>9, Лесная ул., Черноголовка, Московская область 1422432</p></bio><bio xml:lang="en"><p>9, Lesnaya street, Chernogolovka 1422432, Moscow region</p></bio><email xlink:type="simple">dima@iem.ac.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хонг</surname><given-names>Х. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Hong</surname><given-names>H. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>388, Лумолу ул., Ухань, Провинция Хубей 430074</p></bio><bio xml:lang="en"><p>No. 388 Lumo Road, Wuhan 430074, Hubei, P.R. China</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Минералогический музей имени. А.Е.Ферсмана РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Fersman Mineralogical Museum RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУН Институт экспериментальной минералогии РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Experimental Mineralogy RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>The China University of Geolosciences (Wuhan)</institution><country>Китай</country></aff><aff xml:lang="en"><institution>The China University of Geosciences (Wuhan)</institution><country>China</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>26</day><month>11</month><year>2019</year></pub-date><volume>0</volume><issue>5</issue><fpage>36</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Азарова Н.С., Бовкун А.В., Гаранин В.К., Варламов Д.А., Хонг Х.Л., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Азарова Н.С., Бовкун А.В., Гаранин В.К., Варламов Д.А., Хонг Х.Л.</copyright-holder><copyright-holder xml:lang="en">Azarova N.S., Bovkun A.V., Garanin V.K., Varlamov D.A., Hong H.L.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.geology-mgri.ru/jour/article/view/460">https://www.geology-mgri.ru/jour/article/view/460</self-uri><abstract><p>Изучены минералогические и петрогеохимические особенности неопротерозойских кимберлитовых пород трубок Лахто¸ёки и Ниилонсуо кластера Каави (Каави-Куопио, Финляндия), выявлены отличия петрогеохимического состава, количественный и химический составы оксидных минералов глубинного (мантийного) и кимберлитового генезиса. Кимберлиты трубок относятся к умеренно-титанистым, но содержание TiO2 в кимберлитах Ниилонсуо выше (2,11 мас. %), чем в кимберлитах из брекчии трубки Лахто¸ки (1,07 мас. %). Кимберлиты трубки Ниилонсуо отличаются также более высокими концентрациями Fe2 O3 , Са, P, K, Rb, V, Nb, Ba, Th, U, Ta и REE. В кимберлитовых брекчиях трубки Лахто¸ёки основным минералом-концентратором TiO2 является магнезиальный ильменит (13,3—15,2 мас. % MgO; 0,5—4,4 мас. % Cr2 O3 ), представлен макрокристами до 4 мм, в мелкозернистом матриксе пород присутствуют мелкие з¸рна рутила, хромшпинелидов, Mn-ильменита, иногда титаномагнетита. В кимберлитах трубки Ниилонсуо макрокристаллы магнезиального ильменита не обнаружены, главным минералом титана выступает перовскит, реже встречаются хромшпинелиды и титаномагнетит. Длительная кристаллизация сравнительно крупных (до 200 мкм) перовскитовых зё¸рен протекала, согласно оценкам с помощью Nb-Fe-перовскитового оксибарометра, в условиях широкого диапазона значений фугитивности кислорода(fо2 ) кимберлитового расплава (ΔNNO от -3,8 до 5,1). Хромшпинелиды из связующей массы кимберлитовых пород трубок различаются по составу, но обладают одинаковым специфическим характером зональности — обогащение Аl и Mg краевых зон кристаллов, что, возможно, обусловлено растворением вкрапленников флогопита в поднимающемся кимберлитовом расплаве. Помимо оксидных минералов в связующей массе кимберлитов трубки Ниилонсуо широко распростран¸н джерфишерит, состав которого для пород тела описан впервые. Совокупность особенностей оксидной минерализации указывает на неблагоприятные для сохранности алмаза условия в процессе транспортировки кимберлитовым расплавом. </p></abstract><trans-abstract xml:lang="en"><p>The mineralogical and petrogeochemical features of the Neoproterozoic kimberlite rocks of the Lahtojoki and Niilonsuo pipes of the Kaavi cluster (Kaavi-Kuopio, Finland) have been studied, differences in their petrogeochemical composition, quantitative and chemical composition of oxide minerals of deep (mantle) and kimberlite genesis have been revealed. The kimberlites of the pipes are moderately titanic, but the TiO2 content in the kimberlites of Niilonsuo is higher (2.11 wt.%) than in the kimberlites from the breccia of the Lahtojoki pipe (1.07 wt.%). The kimberlites of the Niilonsuo pipe also differ in higher concentrations of Fe2 O3 , Ca, P, K, Rb, V, Nb, Ba, Th, U, Ta and REE. In the Lahtojoki kimberlite breccias the main TiO2 concentrator mineral is magnesian ilmenite (13,3—15,2 wt.% MgO; 0,5—4,4 wt.% Cr2 O3 ), (macrocrysts up to 4 mm); the fine-grained matrix of rocks contains small grains of rutile, chromespinelides, Mn-ilmenite and sometimes titanomagnetite. Macrocrystals of magnesian ilmenite have been not found in the kimberlites of the Niilonsuo pipe, perovskite acts as the main mineral of titanium, and chromespinelids and titanomagnetite are less common. Long-term crystallization of relatively large (up to 200 μm) perovskite grains proceeded according to estimates using an Nb-Fe-perovskite oxybarometer under a wide range of oxygen fugacity (fо2 ) of the kimberlite melt (NNO from -3,8 to 5,1). Chromespinelids from the groundmass of kimberlite pipe rocks differ in composition, but have the same specific zonality — enrichment of Al and Mg in the edge zones of crystals, which is possibly due to the dissolution of phlogopite phenocrysts in the rising kimberlite melt. In addition to oxide minerals, djerfisherite is widely distributed in the groundmass of kimberlites of the Niilonsuo pipe, the composition of which for the rocks of the body has been described for the first time. The combination of features of oxide mineralization indicates unfavorable conditions for the preservation of diamonds during their transportation by kimberlite melt.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Финляндия</kwd><kwd>Каави--Куопио</kwd><kwd>кимберлит</kwd><kwd>связующая масса</kwd><kwd>минералогия</kwd><kwd>перовскит</kwd><kwd>шпинелиды</kwd><kwd>ильменит</kwd><kwd>рутил</kwd><kwd>джерфишерит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Finland</kwd><kwd>Kaavi-Kuopio</kwd><kwd>kimberlites</kwd><kwd>mineralogy</kwd><kwd>perovskite</kwd><kwd>spinel</kwd><kwd>ilmenite</kwd><kwd>djerfisherite</kwd><kwd>rutile</kwd><kwd>groundmass</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Азарова Н.С., Бовкун А.В., Варламов Д.А. 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