gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2025-16-6-0861SXZDBMgtcrust-2152Research ArticleПАЛЕОГЕОДИНАМИКАPALEOGEODYNAMICSОСОБЕННОСТИ ВЕЩЕСТВЕННОГО СОСТАВА РАННЕПАЛЕОЗОЙСКИХ ГРАНИТОИДОВ ПАНГАЗДЖИЛГИНСКОГО КОМПЛЕКСА, ВОСТОЧНАЯ ЧАСТЬ ЦЕНТРАЛЬНОГО ПАМИРА, ТАДЖИКИСТАНCOMPOSITIONAL FEATURES OF THE EARLY PALEOZOIC GRANITOIDS OF THE PANGHAZJILGA COMPLEX, EASTERN PART OF THE CENTRAL PAMIR, TAJIKISTANhttps://orcid.org/0000-0001-8849-206XОдинаевШ. А.OdinaevSh. A.

510640, Гуанчжоу, ул. Кехуа, 511, Китай

100049, Пекин, Юцюань Роуд, 19A, Китай

734063, Душанбе, ул. Айни, 267

511 Kehua St, Guangzhou 510640

19A Yuquan Rd, Beijing 100049

267, Ayni St, Dushanbe 734063

sharif.geolog@mail.ruhttps://orcid.org/0000-0001-7271-8079КаллистовГ. А.KallistovG. A.

620016, Екатеринбург, ул. Академика Вонсовского, 15

15 Academician Vonsovsky St, Ekaterinburg 620016

https://orcid.org/0000-0002-7813-8523АминовДж. Х.AminovJ. H.

010000, Астана, пр­т Кабанбай батыра, 53

Kabanbay Batyr Ave 53, Astana 010000

https://orcid.org/0000-0003-2763-7311TangG.-J.TangG.-J.

510640, Гуанчжоу, ул. Кехуа, 511

511 Kehua St, Guangzhou 510640

https://orcid.org/0009-0001-0894-5194АхмедовД. А.AkhmedovD. A.

620016, Екатеринбург, ул. Академика Вонсовского, 15

620144, Екатеринбург, ул. Куйбышева, 30

15 Academician Vonsovsky St, Ekaterinburg 620016

30 Kuibyshev St, Ekaterinburg 620144

 

https://orcid.org/0000-0003-1779-5391ЛитвиненкоА. К.LitvinenkoA. K.

117997, Москва, ул. Миклухо-­Маклая, 23,

23 Miklukho-Maklay St, Moscow 117997

https://orcid.org/0009-0000-3738-2178АшуралиевС. Б.AshuralievS. B.

734063, Душанбе, ул. Айни, 267

267, Ayni St, Dushanbe 734063

ЁгибековДж. Ш.YogibekovJ. Sh.

830011, Урумчи, ул. Kexue Yuan, 2

2 Kexue Yuan St, Urumqi 830011

Институт геохимии Гуанчжоу КАН ; Колледж наук о Земле и планетах, Университет КАН ; Институт геологии, сейсмостойкого строительства и сейсмологии НАНТТаджикистанGuangzhou Institute of Geochemistry, Chinese Academy of Sciences ; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences ; Institute of Geology, Earthquake Engineering and Seismology, National Academy of Sciences of TajikistanTajikistanИнститут геологии и геохимии им. А.Н. Заварицкого УрО РАНРоссияZavaritsky Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of SciencesRussian FederationШкола горного дела и наук о Земле, Назарбаев университетКазахстанSchool of Mining and Geosciences, Nazarbayev UniversityKazakhstanИнститут геохимии Гуанчжоу КАНКитайGuangzhou Institute of Geochemistry, Chinese Academy of SciencesChinaИнститут геологии и геохимии им. А.Н. Заварицкого УрО РАН ; Уральский государственный горный университетРоссияZavaritsky Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences ; Ural State Mining UniversityRussian FederationРоссийский государственный геологоразведочный университет им. Серго ОрджоникидзеРоссияSergo Ordzhonikidze Russian State University for Geological ProspectingRussian FederationИнститут геологии, сейсмостойкого строительства и сейсмологии НАНТТаджикистанInstitute of Geology, Earthquake Engineering and Seismology, National Academy of Sciences of TajikistanTajikistanСиньцзянский институт экологии и географии КАНКитайXinjiang Institute of Ecology and Geography, Chinese Academy of SciencesChina202511122025166861861Copyright © Одинаев Ш.А., Каллистов Г.А., Аминов Д.Х., Tang G., Ахмедов Д.А., Литвиненко А.К., Ашуралиев С.Б., Ёгибеков Д.Ш., 20252025Одинаев Ш.А., Каллистов Г.А., Аминов Д.Х., Tang G., Ахмедов Д.А., Литвиненко А.К., Ашуралиев С.Б., Ёгибеков Д.Ш.Odinaev S.A., Kallistov G.A., Aminov J.H., Tang G., Akhmedov D.A., Litvinenko A.K., Ashuraliev S.B., Yogibekov J.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/2152

Пангазджилгинский комплекс в восточной части Центрального Памира – один из немногих кембрийских интрузивных комплексов региона. В работе рассмотрен ряд вопросов, позволяющих приблизиться к пониманию природы пород комплекса. Кварцевые диориты и гранодиориты пангазджилгинского комплекса, слагающие одноименный массив, являются продуктами кристаллизации единой родоначальной андезитоидной магмы. Присутствие изотопно одновозрастных породам комплекса мафических микрогранулярных включений, представленных монцодиоритами, в кварцевых диоритах и гранодиоритах, как и сама ассоциация пород, указывает на участие в процессе магмогенерации мафических и кислых магм. Преобладание кристаллов амфибола и отсутствие пироксена в кварцевых диоритах, гранодиоритах и монцодиоритах из включений позволяют предположить, что амфибол был главным рано кристаллизующимся минералом, а доминирующая роль амфибола и биотита в породах свидетельствует о значительном влиянии H2O в процессе кристаллизации. Состав пород комплекса, а также монцодиоритов из включений указывает на их тесную связь с плавлением мантийного источника, испытавшего взаимодействие с коровыми породами (или выплавками). В частности, такой гибридный характер источника объясняет вариативный и обогащенный изотопный состав Hf–Nd–Sr в рассматриваемых породах, установленных авторами ранее. Можно полагать, что в магмогенерации материнских для кварцевых диоритов и гранодиоритов магм принимали участие гетерогенные источники: неоднородный коровый источник (преимущественно субдуцируемый осадочный материал) и магмы, возникшие при частичном плавлении обогащенного мантийного вещества, измененного в процессе субдукции. Образование материнских для гранитоидов пангазджилгинского комплекса магм было связано с субдукцией океанической коры Прототетиса под северную окраину Гондваны.

The Panghazjilga igneous complex in the eastern part of the Central Pamirs is one of the few Cambrian intrusive formations in the region. In our study, we address a number of questions that contribute to understanding the nature of the rocks in the complex. The quartz diorites and granodiorites of the Panghazjilga complex, which constitute the eponymous massif, are products of crystallization from a single parent andesitic magma. The fact that mafic microgranular enclaves (MME), isotopically similar to the rocks of the complex and represented by monzodiorites, are present in quartz diorites and granodiorites, as well as the rock association itself, indicates the involvement of mafic and acid magmas in the process of magma generation. The predominance of amphibole crystals and the absence of pyroxene in the quartz diorites, granodiorites and monzodiorites from the enclaves suggest that amphibole was the principal early-crystallizing mineral, and the dominant role of amphibole and biotite in the rocks indicates a significant influence of H2O on crystallization. The composition of the rocks from this igneous complex, as well as that of the monzodiorites from the enclaves, demonstrates their close connection with melting of a mantle source that interacted with crustal rocks (or their melts). In particular, this hybrid nature of the source explains the variable and enriched isotopic composition of Hf–Nd–Sr in the rocks that were considered earlier. We believe that the generation of magmas, which serve as a parent material for quartz diorites and granodiorites, involved heterogeneous sources: heterogeneous crustal source (predominantly subducted sedimentary material) and magmas that formed through partial melting of enriched mantle material altered during subduction. The formation of magmas, which are the source of granitoids of the Panghazjilga complex, was associated with the subduction of the oceanic crust of the Proto-Tethys beneath the northern margin of Gondwana.

пангазджилгинский комплекскварцевый диоритгранодиоритмонцодиоритММЕЦентральный Памирпетрографиягеохимиячастичное плавлениемантийный источниксубдукцияПрототетисPanghazjilga complexquartz dioritegranodioritemonzodioriteMMECentral Pamirpetrographygeochemistrypartial meltingmantle sourcesubductionProto-TethysИсследование проведено при поддержке крупного национального проекта науки и технологий Китая (№ 2024ZD1001103, «Глубокий зонд Земли и исследование минеральных ресурсов»), стратегической программы приоритетных исследований Китайской академии наук (№ XDB0840300), в рамках госзадания ИГССС НАНТ (№ 0121TJ1167) и госзадания ИГГ УрО РАН (№ 124020400013-1).The study was supported by the National science and technology major project of China ("Deep Earth Probe and Mineral Resources Exploration", No. 2024ZD1001103), the Strategic priority research program of the Chinese Academy of Sciences (No. XDB0840300) and as part of the state assignment of the IGEES NAST, (No. 0121TJ1167) and of the IGG UB RAS (No. 124020400013-1).ReferencesAminov J., Ding L., Mamadjonov Y., Dupont-Nivet G., Aminov J., Zhang L.Y., Yoqubov S., Aminov J., Abdulov S., 2017. 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The authors declare that there are no conflicts of interest present.