nznistuНауки о Земле и недропользованиеEarth sciences and subsoil use2686-99932686-7931Federal State Budget Educational Institution of Higher Education "Irkutsk National Research Technical University"10.21285/2686-9993-2021-44-1-8-29nznistu-127Research ArticleГеология, поиски и разведка месторождений полезных ископаемыхGeology, Prospecting and Exploration of Mineral DepositsСмешанный кристаллический фундамент Джунгарской котловины, выявленный методом широкоугольной сейсморазведкиMixed crystalline basement of Junggar basin revealed by wide-angle seismic evidenceЧжаоЦзюньмэнZhaoJunmeng

 100101, г. Пекин

100049, г. Пекин

 Beijing 100101 

 Beijing 100049 

zhaojm@itpcas.ac.cnСяоВэньцзяоXiaoWenjiao

100049, г. Пекин

100029, г. Пекин 

 Beijing 100029 

ЧэньСиньфаChenXinfa

 834000, г. Карамай 

  Karamay 834000 

ВанСяоцзюньWangXiaojun

 834000, г. Карамай 

 Karamay 834000 

СунЮнSongYong

 834000, г. Карамай 

 Karamay 834000 

БяньБаолиBianBaoli

 834000, г. Карамай 

 Karamay 834000 

ЧжанСяньканZhangXiankang

 450000, г. Чжэнчжоу 

 Zhengzhou 450000 

СтрельченкоИ. П.StrelchenkoI. P.

  Стрельченко Ирина Петровна, Главная лаборатория коллизии континентов и подъема плато

100101, г. Пекин

100049, г. Пекин

664074, г. Иркутск, ул. Лермонтова 83, Россия 

 Beijing 100101 

 Beijing 100049 

 83 Lermontov St., Irkutsk 664074, Russia 

СюйЦянXuQiang

 100101, г. Пекин 

 Beijing 100101 

ЧжанХэнZhangHeng

 100101, г. Пекин 

 Beijing 100101 

ЧжэнИнцайZhengYingcai

 02139-4307, г. Кембридж 

 Cambridge 02139-4307 

ЛюХунбинLiuHongbing

 100101, г. Пекин 

  Beijing 100101 

НеупанеБхупатиNeupaneBhupati

 100101, г. Пекин 

 100049, г. Пекин 

 Beijing 100101 

 Beijing 100049 

МаЧжунцзиньMaZongjin

 100029, г. Пекин 

 Beijing 100029 

Центр передового опыта наук о Земле Тибетского плато, Китайская академия наук; Институт изучения Тибетского плато, Китайская академия наук; Университет Китайской академии наукКитайCenter for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences; Institute of Tibetan Plateau Research, Chinese Academy of Sciences; University of Chinese Academy of SciencesChinaУниверситет Китайской академии наук; Институт геологии и геофизики, Китайская академия наукКитайUniversity of Chinese Academy of Sciences; Institute of Geology and Geophysics, Chinese Academy of SciencesChinaСиньцзянская нефтяная компанияКитайXinjiang Oilfield CompanyChinaЦентр геофизических исследований Сейсмологического управления КитаяКитайCenter for Geophysical Exploration, China Earthquake AdministrationChinaИнститут изучения Тибетского плато, Китайская академия наук; Университет Китайской академии наук; Иркутский национальный исследовательский технический университетКитайInstitute of Tibetan Plateau Research, Chinese Academy of Sciences; University of Chinese Academy of Sciences; Irkutsk National Research Technical UniversityChinaЦентр передового опыта наук о Земле Тибетского плато, Китайская академия наук; Институт изучения Тибетского плато, Китайская академия наукКитайCenter for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences; Institute of Tibetan Plateau Research, Chinese Academy of SciencesChinaМассачусетский технологический институтСоединённые Штаты АмерикиMassachusetts Institute of TechnologyUnited StatesИнститут изучения Тибетского плато, Китайская академия наук; Университет Китайской академии наукКитайInstitute of Tibetan Plateau Research, Chinese Academy of Sciences; University of Chinese Academy of Sciences;ChinaИнститут геологии Сейсмологического управления КитаяКитайInstitute of Geology, China Earthquake AdministrationChina202105042021441829Copyright © Чжао Ц., Сяо В., Чэнь С., Ван С., Сун Ю., Бянь Б., Чжан С., Стрельченко И.П., Сюй Ц., Чжан Х., Чжэн И., Лю Х., Неупане Б., Ма Ч., 20212021Чжао Ц., Сяо В., Чэнь С., Ван С., Сун Ю., Бянь Б., Чжан С., Стрельченко И.П., Сюй Ц., Чжан Х., Чжэн И., Лю Х., Неупане Б., Ма Ч.Zhao J., Xiao W., Chen X., Wang X., Song Y., Bian B., Zhang X., Strelchenko I.P., Xu Q., Zhang H., Zheng Y., Liu H., Neupane B., Ma Z.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.nznj.ru/jour/article/view/127

Широкоугольная сейсморазведка методом отраженных / преломленных волн вдоль линии поперечного разреза протяженностью ~ 600 км через Джунгарский бассейн от Эминя до Цитая позволяет получить изображение нескольких слепых разломов с простиранием с севера на юг, которые расположены в нижней части верхней коры, в средней и нижней частях коры в пределах бассейна и разрезают Мохо. Эти разломы, обладающие высокой сейсмической скоростью и не имеющие явной дислокации пластов, считаются «разломами растяжения», образованными сжатием с севера на юг и растяжением с востока на запад. Эти глубоко залегающие разломы обеспечивают каналы для основных и ультраосновных материалов из верхней мантии, которые мигрируют в кору и смешиваются с материалом коры, в результате чего кора бассейна становится тонкой и приобретает высокую сейсмическую скорость, высокую плотность и высокую магнитную интенсивность после охлаждения.

A wide-angle seismic reflection / refraction survey along a ~ 600 km long transect through the Junggar basin from Emin to Qitai allows to receive several images near N-S trending blind faults, which are located at the lower part of the upper crust, the middle crust and the lower crust within the basin and cut up the Moho. These faults, with high seismic velocity and without obvious dislocation, are considered as “extensional faults” formed by north-south compression and east-west extension. These deeply rooted faults provide channels via which basic to ultra-basic materials from upper mantle migrate into the crust and mix up with the crustal material causing thin thickness, high seismic velocity, high density and high magnetic intensity after cooling in the crust of the basin.

Джунгарский бассейнширокоугольное профилирование методом отраженных / преломленных волнструктура скоростиструктура плотностиструктура магнитной напряженностигеологическая интерпретацияJunggar Basinseismic wide-angle reflection / refraction profilingvelocity structuredensity structuremagnetic intensity structuregeological interpretationЭто исследование выполнено при совместной поддержке программы «Крупные национальные научно-технические проекты по разработке крупных месторождений нефти и газа, а также метана угольных пластов (2011ZX05003-005)», Национального научного фонда Китая (41888101), грантов «Программа стратегических приоритетных исследований (A) Китайской академии наук (грант № XDA20070302)», «Совместные исследовательские проекты Пакистанского научного фонда и Национального фонда естественных наук Китая (грант № 41661144026)» и «Разведка и исследование континентальной субдукции в Западных Гималаях (грант № 41490611)». Мы благодарим исследователей Центра геофизических исследований CEA за их усердную работу по получению данных широкоугольного отражения / преломления. Мы также благодарим доктора Гоцин Чжан за предоставление гравитационных и геомагнитных данных.This research was jointly supported by “Major National Science and Technology Projects for the Development of Large Oil and Gas Fields and Coalbed Methane (2011ZX05003-005)”, “National Science Foundation of China (41888101)”, “Strategic Priority Research Program (A) of the Chinese Academy of Sciences (Grant No. XDA20070302)”, “Joint Research Projects between Pakistan Science Foundation and National Natural Science Foundation of China (Grant No. 41661144026)”, and “Exploration and Research on Continental Subduction in Western Himalayan Syntaxis (Grant No. 41490611)”. We are grateful to researchers in the Center for Geophysical Exploration CEA for their hard work in acquiring the wide-angle reflection/refraction data. 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The authors declare that there are no conflicts of interest present.