[an error occurred while processing this directive] ������� 2017, 36(3) 682-690 DOI:   10.3969/j.issn.1004-5589.2017.03.004  ISSN: 1004-5589 CN: 22-1111/P

����Ŀ¼ | ����Ŀ¼ | ������� | �߼�����                                                            [��ӡ��ҳ]   [�ر�]
��������
��չ����
������Ϣ
Supporting info
PDF(726KB)
[HTMLȫ��]
�����[PDF]
�����
�����뷴��
�ѱ����Ƽ�������
�����ҵ����
�������ù�����
����
Email Alert
���·���
���������Ϣ
���Ĺؼ����������
��׼����
��ͼ����
����ѧ
��������ʯ
����ײ
��־����
���������������
����Ȫ
�ű���
PubMed
Article by Yin S
Article by Zhang B
��׼����������ͼ����ĵ���ѧ���������컷��
����Ȫ, �ű���
���ҵ���ʵ���������, ���� 100037
ժҪ�� ѡ����׼����������־������ͼ�������ϵͳ����ʯѧ������ѧ�����о�����ʾ����ʯ�����γɵĴ�ع��컷������ͼ���������Լس�������Ϊ�����߲�Ϊ���Ի����ҡ������Һ������ҡ��س������Һ�������ƶMgO��0.3%~0.5%����CaO��0.8%~1.1%����ϡ�������ߣ�105~204 ��g/g����Eu�쳣���ԣ����ڼ��Ը߷���I�ͻ����ң����Ի����Ҹ��6.8%����ƶAl2O3��9.9%����ϡ�������ϸߣ�271 ��g/g�������ȿ���Sr��Ba��Eu�����ڵ��͵�A�ͻ����ҡ������Ҹ�MgO��4.1%����CaO��7.5%����ϡ�������ϸߣ�93 ��g/g�������ڸ߼ظƼ���ϵ�У�Դ�Ը�ˮ��ᣵIJ������ڡ��������ѧ����������ͼ�س������ҡ����Ի����ҡ������Ҿ��������ؿDz�������֮��ͬ�̶Ƚᾧ����IJ����ͼ����ĸ��������ձ���и����ϡ���ʹ�������ʯԪ�أ�Rb��K����������߳�ǿԪ�أ�Nb��Ta���ĵ���ѧ�������γ��ں���ײ����չ������
�ؼ����� ��׼����   ��ͼ����   ����ѧ   ��������ʯ   ����ײ   ��־����  
Geochemical characteristics and tectonic setting of Bitu complex in northern West Junggar
YIN Shao-quan, ZHANG Bao-ke
National Research Center for Geoanalysis, Beijing 100037, China
Abstract: Systematic petrological and geochemical analysis were conducted Late Silurian Bitu complex in northern West Junggar, with the attempt to reveal its petrogenesis and tectonic setting. The Bitu complex mainly consists of syenogranite and subordinate alkaline granite, syenite and diorite. The syenogranite and syenite are highly-fractionated I-type granitoids, characterized by low contents of MgO (0.3%~0.5%), CaO (0.8%~1.1%), high REE (105~204 ��g/g) and strong Eu anomalies. The alkaline granite shows low Al2O3 (9.9%), high total alkalis (6.8%) and REE (271 ��g/g), strong depletion in Sr, Ba, Eu, with the affinity of A-type granite. The diorite exhibits high MgO (4.1%) and CaO (7.5%),and relatively high REE abundance (93 ��g/g). It belongs to high-K calc-alkaline series and was formed by partial melting of H2O-rich mantle. Geochemical data suggest that granitic rocks of Bitu complex were originated from crystallization differentiation of partial melting juvenile crust. The Bitu complex is enriched in alkali, light rare earth elements and large ion igneous elements (such as Rb and K) and slightly depleted in Nb and Ta, indicating that it was generated in a post-collisional extensional setting.
Keywords: West Junggar   Bitu complex   geochemistry   granitoids   post-collision   Late Silurian  
�ո����� 2016-05-26 �޻����� 2017-08-20 ����淢������  
DOI: 10.3969/j.issn.1004-5589.2017.03.004
������Ŀ:

��У��������ҵ��ѣ�140104003��140104004��.

ͨѶ����:
���߼��:
����Email:

�ο����ף�
[1] Windley B F, Alexeiev D, XIAO Wen-jiao, et al. Tectonic models for accretion of the Central Asian orogenic belt[J].Journal of the Geological Society, 2007, 164:31-47.
[2] Xiao W J, Huang B C, Han C M, et al. A review of the western part of the Altaids:a key to understanding the architecture of accretionary orogens[J].Gondwana Research, 2010, 18(2/3):253-273.
[3] Chen J F, Han B F, Zhang L, et al. Middle Paleozoic initial amalgamation and crustal growth in the west Junggar (NW China):constraints from geochronology, geochemistry and Sr-Nd-Hf-Os isotopes of calc-alkaline and alkaline intrusions in the Xiemisitai-Saier mountains[J]. Journal of Asian Earth Sciences, 2015, 113:90-109.
[4] Shen P, Shen Y C, Li X H, et al. Northwestern Junggar Basin,Xiemisitai mountains, China:a geochemical and geochronological approach[J]. Lithos, 2012, 140/141:103-118.
[5] Yin J Y, Chen W, Xiao W J, et al. Late Silurian-Early Devonian adakitic granodiorite, A-type and I-type granites in NW Junggar, NW China:partial melting of mafic lower crust and implications for slab roll-back[J]. Gondwana Research, 2015, 43:55-73.
[6] Chen J F, Han B F, Ji J Q, et al. Zircon U-Pb ages and tectonic implications of Paleozoic plutons in northern west Junggar,north Xinjiang, China[J]. Lithos, 2010, 115:137-152.
[7] ����,��Ƽ,��Զ��,��. �½�л��˹̨�жλ�ɽ����ʯ����ѧ�������ʯU-Pb���估���������[J]. ��ʯѧ��, 2010, 26(10):3047-3056. MENG Lei, SHEN Ping, SHEN Yan-chao, et al. Igneous rocks geochemistry, zircon U-Pb age and its geological significance in the central section of Xiemisitai area, Xinjiang[J]. Acta Petrologica Sinica, 2010, 26(10):3047-3056.
[8] ����, �����, ������, ��. ���˰��뱱�����ֵ��������ջ������ʯU-Pb���ѧ������ѧ�����������[J]. ���ִ�ѧѧ��:�����ѧ��, 2016, 46(5):1383-1405 LIU Yu, SUN Jia-peng, WANG Xian-zhong, et al. Dawusu complex of Xinlin district in northern Greater Hinggan Mountain Zircon U-Pb chronology, petrogeochemistry, and its geological implication[J]. Journal of Jilin University:Earth Science Edition, 2016, 46(5):1383-1405.
[9] Chappell B W. Aluminium saturation in I-and S-type granites and the characterization of fractionated Haplo granites[J]. Lithos, 1999, 46(3):535-551.
[10] Wu F Y, Yang J H, Wilde S A, et al. Geochronology, petrogenesis and tectonic implications of the Jurassic granites in the Liaodong Peninsula,NE China[J]. Chemical Geology, 2005, 221:127-156.
[11] ����,���Ĵ�,���,��. ���˰����ж�����������������������ҳ����γɹ��컷��[J]. �������, 2016, 35(2):283-296. JI Zheng, GE Wen-chun, YANG Hao, et al. Petrogenesis of Early Cretaceous granites in Taerqi area of central Great Xing'an range and its tectonic setting[J]. Global Geology, 2016, 35(2):283-296.
[12] ������,�����,��άƽ,��.���ָ���������ɽ�������ʯU-Pb���䡢��ʯ����ѧ���������������[J]. �������,2014, 33(2):289-298. LIU Wan-zhen, SUN Feng-yue, HUANG Wei-ping, et al. Zircon U-Pb ages and petrochemical characteristics of Bangzishan granite in Fu'anpu of Jilin and their geological significance[J]. Global Geology, 2014, 33(2):289-298.
[13] Ma X, Chen B, Chen J F, et al. Zircon SHRIMP U-Pb age, geochemical,Sr-Nd isotopic and in-situ Hf isotopic data of the Late Carboniferous-Early Permian plutons in the northern margin of the North China Craton[J]. Science China:Earth Sciences, 2013, 56(1):126-144.
[14] ������,��־��,��̩��,��.�½���׼�����������������������:��ع��켰�ɿ�����[J]. ��ʯѧ��, 2013, 29(3):840-852. WAMG Jin-rong, JIA Zhi-lei, LI Tai-de, et al. Discovery of Early Devonian adakite in west Junggar,Xinjiang:implications for geotectonics and Cu mineralization[J]. Acta Petrologica Sinica, 2013, 29(3):840-852.
[15] Degtyarev K E. Tectonic evolution of Early Paleozoic island-arc systems and continental crust formation in the Caledonides of Kazakhstan and the north TienShan[J]. Geotectonics, 2011, 45(1):23-50.
[16] Choulet F, Faure M, Cluzel D, et al. Architecture and evolution of accretionary orogens in the Altaids collage:the Early Paleozoic west Junggar (NW China)[J]. American Journal of Science, 2012, 312:1098-1145.
[17] Xu Z, Han B F, Ren R, et al. Palaeozoic multiphase magmatism at Barleik mountain,southern west Junggar, northwest China:implications for tectonic evolution of the west Junggar[J]. International Geology Review, 2013, 55(5):633-656.
[18] �¼Ҹ�,������,����.��׼������������������������ҵĵ���ѧ��Sr-Ndͬλ�����������������[J]. ��ʯѧ��, 2010, 26(8):2317-2335. CHEN Jia-fu, HAN Bao-fu, ZHANG Lei. Geochemistry, Sr-Nd isotopes and tectonic implications of two generation of Late Paleozoic plutons in northern west Junggar, northwest China[J].Acta Petrologica Sinica, 2010, 26(8):2317-2335.
[19] Zhu Y F, Chen B, Xu X, et al. A new geological map of the western Junggar, north Xinjiang (NW China):implications for Paleoenvironmental reconstruction[J].Episodes, 2013, 36(3):205-220.
[20] Zhu Y F, Chen B, Qiu T. Geology and geochemistry of the Baijiantan-Baikouquan ophiolitic mélanges:implications for geologic evolution of west Junggar, Xinjiang, NW China[J].Geological Magazine, 2015, 152(1):41-69.
�������������
1�����Ķ�, ���, ����, ������, ֣����, ������, κС��.���˰��뱱������ս����������������������ѧ������ѧ����ع�������[J]. �������, 2018,37(1): 21-36
2���ΕD, ��ѧ��, ֣����, �ֲ�, ���׺�, �����.������������٪�޼ͻ�ɽ����ʯѧ��ͬλ�����ѧ�����ѧ����[J]. �������, 2018,37(1): 70-87
3���޲�, �ڽ齭, ����־, ��Ԫ��, ���Ǵ�, �ڽ�».�½�����ɽ�������������ɽ�ϲ����������ɽ�ҵ����ѧ������ѧ�����������[J]. �������, 2018,37(1): 88-104
4��֣��, ���Գ�, ������, ����.�����߼ұ���������ʯ����ĸƬ�ҵ���ѧ��������������[J]. �������, 2017,36(3): 785-795
5������, �ᄚ��, ����, ������, ���庣, �Ű���, �Կ�ǿ.С�˰��뱱´����ɽ��󴲸���Χ���ʯU-Pb���ѧ������ѧ����ʯ�������������[J]. �������, 2017,36(3): 806-825
6��������, ������, ������, ۬����, ����ʵ, ����, ������.������ر�Ʊ�������������Դ���л�����ѧ����[J]. �������, 2017,36(3): 889-902
7������ܰ, �����, ������, ��, ������, ����ΰ.Ǽ�������ӵ�������������SHRIMP�ʯU-Pb���ѧ����ʯ����ѧ[J]. �������, 2017,36(3): 691-700
8�����ﲩ, ���Գ�, ����, ������.�������¼ҵ��������ڰ����ʯU-Pb���ꡢ����ѧ��������������[J]. �������, 2017,36(3): 796-805
9������, ����ʤ.����Ǽ���������켹ɽ��������ĸ�����ҳ��򼰵�������[J]. �������, 2017,36(3): 671-681
10������, �����, ����, ����־.������ɽ�ӻ���-�����������ʯU-Pb���ѧ����ʯ����ѧ����[J]. �������, 2017,36(2): 441-451
11������, ۭ����, ������, ����, �∐��.�Ĵ���֦��������˫��ʽ��ɽ�ҵ���ѧ���������������[J]. �������, 2017,36(2): 452-459
12������, ������, ������, ����, ����.�������������ӽ�󴲻�ɽ��-�λ�ɽ�����ѧ������ѧ�͵�������[J]. �������, 2017,36(2): 460-473
13�������, �����, ���ͷ�, ����, ����, ������, ��־ӱ.���˰��뱱�λ���̨ͭǦп�������������ҵ���ʯ���򣺵���ѧ���ʯU-Pb���ѧ��Լ[J]. �������, 2017,36(2): 474-485
14���ν�, ��־��, ����, ��ϣ��, ���Ʊ�, ������.�����в������뱱���������ʯU-Pb���ꡢ����ѧ���������������[J]. �������, 2017,36(2): 391-401
15������ΰ, ���ʤ, ���庣, ������, ����, ������.���˰��뱱��˹ľ�Ƶ�����٪������״�������������ѧ������ѧ�����������[J]. �������, 2017,36(2): 402-412

Copyright by �������