大兴安岭大洋山钼矿区侵入岩年代学、岩石地球化学特征及岩石成因
Geochronology,Geochemistry and Genesis of Igneous Rocks Associated with Dayangshan Mo Deposit in Great Xing'an Range
查看参考文献63篇
|
文摘
|
本文研究了黑龙江省大兴安岭东北部大洋山钼矿区中生代侵入岩的年代学和岩石地球化学特征,探讨了研究区中生代侵入岩的形成时代、岩石成因及构造背景。采用电感耦合-等离子体质谱仪(LA -ICP-MS)锆石U-Pb定年方法,获得细中粒二长花岗岩加权平均年龄分别为(177.3±2.6)Ma和(176.5±1.6)Ma,为早侏罗世;闪长玢岩加权平均年龄为(158.0±2.7)Ma,为晚侏罗世。岩石地球化学研究表明:细中粒二长花岗岩具高Si,富K和贫Fe、Mn、Mg等特征,大离子亲石元素Rb、K和LREE富集,高场强元素Nb、Zr、P、Th和HREE亏损,具有显著的Eu负异常(δEu=0.39),结合其低Cr、Ni、Co质量分数和低Mg~#值(Mg~#为27.25),指示壳源岩浆特征;闪长玢岩偏碱,富K和Na,Ca、Ti、Mg等元素质量分数中等,大离子亲石元素Rb、K、Sr相对富集,高场强元素Nb、Ta、Ti、Th和HREE相对亏损,具俯冲带弧岩浆岩的特征。综合研究表明,细中粒二长花岗岩和闪长玢岩的形成均受到北部蒙古鄂霍茨克洋俯冲作用的影响,蒙古鄂霍茨克洋残留部分在大兴安岭东北部俯冲闭合时间为晚侏罗世早白垩世期间。 |
|
其他语种文摘
|
The geochronology and geochemistry of Mesozoic intrusions in the Dayangshan Mo deposit in the Northeastern part of the Great Xing'an Range are studied in this paper,and the petrogenesis and tectonic setting are discussed.The U-Pb dating of the medium fine-grained granite using(LA-ICP-MS)is(177.3 ±2.6)Ma and(176.5 ±1.6)Ma,namely the Early Jurassic.The dating of the diorite porphyry is(158.0±2.7)Ma,that is,the Late Jurassic.The study of geochemistry shows that the medium fine-grained granite is characterized by its high Si,rich K poor Fe,Mn,and Mg. It is depleted of HFSE(such as Nb,Zr,P,Th,and HREE),and rich in LILE(such as Rb,K,and LREE),with a significant negative Eu anomaly (δEu = 0.39).Combined with its low Cr,Ni,Co contents and low Mg~#,the medium fine-grained granite came from a source of lower crust.The diorite porphyry is relatively rich in Na,K,and alkaline,and the contents of Ca,Ti,and Mg are medium.It is rich in LILE(such as,Rb,K,and Sr)and depleted of HFSE(such as,Nb,Ta,Ti,Th,and HREE), indicating the characteristics of arc magmatic rocks in subduction zone.Combined with previous studies, we believe that the formation of medium fine-grained granite and diorite porphyry is influenced by the subduction of the Mongolian-Okhotsk Ocean,and the closing time of the residual Mongolian-Okhotsk Ocean in the Northeast of Great Xing'an Range can be limited to the Late Jurassic-Early Cretaceous. |
|
来源
|
吉林大学学报. 地球科学版
,2021,51(4):1064-1081 【核心库】
|
|
DOI
|
10.13278/j.cnki.jjuese.20200262
|
|
关键词
|
侵入岩
;
U-Pb年龄
;
地球化学
;
中生代
;
大洋山钼矿区
;
大兴安岭东北部
|
|
地址
|
1.
黑龙江省自然资源调查院, 哈尔滨, 150036
2.
中国科学院地球化学研究所, 贵阳, 550081
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1671-5888 |
|
学科
|
地质学 |
|
基金
|
国土资源部中国地质调查局项目
;
黑龙江省地质矿产局科研项目
;
黑龙江省国土资源公益项目
|
|
文献收藏号
|
CSCD:7025084
|
参考文献 共
63
共4页
|
|
1.
周若. 花岗岩混合作用.
地学前缘,1994,1(1/2):87-97
|
被引
10
次
|
|
|
|
|
2.
肖庆辉. 中国花岗岩与大陆地壳生长方式初步研究.
中国地质,2005,32(3):343-352
|
被引
44
次
|
|
|
|
|
3.
Ying J F. Geochronological Framework of Mesozoic Volcanic Rocks in the Great Xing'an Range,NE China,and Their Geodynamic Implications.
Journal of Asian Earth Sciences,2010,39(6):786-793
|
被引
88
次
|
|
|
|
|
4.
Wang F. Late Mesozoic Volcanism in the Great Xing'an Range(NE China): Timing and Implications for the Dynamic Setting of NE Asia.
Earth & Planetary Science Letters,2006,251(1):179-198
|
被引
218
次
|
|
|
|
|
5.
林强. 中国东北地区中生代火山岩的大地构造意义.
地质科学,1998,33(2):3-5
|
被引
6
次
|
|
|
|
|
6.
葛文春. 大兴安岭中生代玄武岩的地球化学特征:壳幔相互作用的证据.
岩石学报,1999,15(3):3-5
|
被引
1
次
|
|
|
|
|
7.
Ji Fengying. Geochronological and Geochemical Investigation of the Late Mesozoic Volcanic Rocks from the Northern Great Xing'an Range and Their Tectonic Implications.
International Journal of Earth Sciences,2010,99(2):357-378
|
被引
1
次
|
|
|
|
|
8.
隋振民. 大兴安岭东北部侏罗纪花岗质岩石的锆石U-Pb年龄、地球化学特征及成因.
岩石学报,2007,23(2):461-480
|
被引
123
次
|
|
|
|
|
9.
Tomurtogoo O. Zircon Age and Occurrence of the Adaatsag Ophiolite and Muron Shearzone,Central Mongolia:Constraints on the Evolution of the Mongol-Okhotsk Ocean,Suture and Orogen.
Journal of the Geological Society,2005,162(1):125-134
|
被引
105
次
|
|
|
|
|
10.
Mazukabzov A M. The Late Paleozoic Geodynamics of the West Transbaikalian Segment of the Central Asian Fold Belt.
Russian Geology and Geophysics,2010,51(5):482-491
|
被引
13
次
|
|
|
|
|
11.
Zonenshain L P.
Geology of the USSR:A Plate-Tectonics Synthesis,1990:1-242
|
被引
1
次
|
|
|
|
|
12.
Zorin Y A. Geodynamics of the Western Part of the Mongolia-Okhotsk Collisional Belt, Trans-Baikal Region(Russia)and Mongolia.
Tectonophysics,1999,306(1):33-56
|
被引
261
次
|
|
|
|
|
13.
Sorokin A A. The Age and Geochemistry of Volcanic Rocks on the Eastern Flank of the Umlekan-Ogodzha Volcanoplutonic Belt (Amur Region).
Russian Geology and Geophysics,2010,51(4):369-379
|
被引
13
次
|
|
|
|
|
14.
Kravchinsky V A. Evolution of the Mongol-Okhotsk Ocean as Constrained by New Palaeomagnetic Data from the Mongol-Okhotsk Suture Zone, Siberia.
Geophysical Journal International,2002,148(1):34-57
|
被引
108
次
|
|
|
|
|
15.
张超.
大兴安岭南段巴林左旗-扎鲁特旗地区晚中生代岩浆作用及其构造背景,2020:1-155
|
被引
2
次
|
|
|
|
|
16.
Wu F Y. Geochronology of the Phanerozoic Granitoids in Northeastern China.
Journal of Asian Earth Sciences,2011,41(1):1-30
|
被引
677
次
|
|
|
|
|
17.
杨元江. 黑龙江省呼中-塔河地区地球化学特征及找矿成果.
物探与化探,2017,41(1):86-91
|
被引
1
次
|
|
|
|
|
18.
和钟铧. 大兴安岭索伦地区哲斯组碎屑岩地球化学特征和锆石U-Pb年龄对沉积物源属性约束.
吉林大学学报(地球科学版),2020,50(2):405-424
|
被引
5
次
|
|
|
|
|
19.
余长胜. 大兴安岭下嘎来奥伊铅锌矿床钾长花岗岩的岩石成因及地质意义.
吉林大学学报(地球科学版),2020,50(4):1042-1058
|
被引
3
次
|
|
|
|
|
20.
吴兆剑. 大兴安岭北段吉峰地区晚中生代花岗质岩石年龄、地球化学特征及其构造意义.
地质通报,2020,39(Z1):234-253
|
被引
5
次
|
|
|
|
|
了解气象卫星更多信息，请访问