|Table of Contents|

Trace Elements Geochemistry Feature and Tectonic Significance of the Beilekuduke Aluminous A-type Granite in East Junggar(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2010年第01期
Page:
34-39
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Trace Elements Geochemistry Feature and Tectonic Significance of the Beilekuduke Aluminous A-type Granite in East Junggar
Author(s):
YANG Gao-xue1;  LI Yong-jun1;  SI Guo-hui2; WU Hong-en3; ZHANG Yong-zhi3; JIN Zhao1
1.School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China; 2.Xi'an Research Institute of Geology and Mineral Resources Exploration and Exploitation, Xi'an 710100, Shaanxi, China; 3.Xinjiang Institute of Geological Exploration for Nonferrous Resources, Urumqi 830000, Xinjiang, China
Keywords:
geochemistry;  A-type granite;  geology significance;  Beilekuduke;  East Junggar
PACS:
P591
DOI:
-
Abstract:
The geochemistry feature of rock in Beilekuduke granite in Kalamaili region of East Junggar, Xinjiang is discussed. The result shows that the biotite granites are typical aluminum A-type granites because of the enrichment of large-ion lithophile elements(Rb, K, Th, etc), relative enrichment of high field strength elements(Zr, Hf), relative loss of Ba, Sr, Nb, Eu, a high level of rare earth elements(REE), Eu negative anomaly extremely and flat “V” shaped of REE pattern. The granite is belong to A2-type originally and formed in the post-collision expansion environment, and may be derived from the young crust constructed by the oceanic crust and island arcs. Trace elements in granite tectonic discriminate diagram shows that it is a post-collisional granite, and indicates that the end of Late Carboniferous orogenesis in Kalamaili region and the start of plate tectonic evolution. The content of Sn, which is generally large(15.50×10-6)in the granite, is very important for the study of tin mineral deposit and source.

References:

[1] 忻建刚,袁奎荣,刘家远.新疆东准噶尔北部碱性花岗岩的特征、成因及构造意义[J].大地构造与成矿学,1995,19(3):214-226.
[2] 刘家远,喻亨祥,吴郭泉.新疆东准噶尔两类碱性花岗岩及其地质意义[J].矿物岩石地球化学通报,1999,18(2):89-94.
[3] 韩宝福,王式洸,江博明,等.新疆乌伦古河碱性花岗岩Nd同位素特征及其对显生宙地壳生长的意义[J].科学通报,1997,42(17):1829-1832.
[4] 李锦轶.新疆东准噶尔蛇绿岩的基本特征和侵位历史[J].岩石学报,1995,11(增刊):73-84.
[5] 赵同阳,周可法,张晓帆,等.基于小波变换的反射光谱分析在蛇绿岩识别中的应用研究——以西准噶尔地区为例[J].西北地质,2007,40(4):87-93.
[6] 宋泰忠,王 瑾,林 海,等.内蒙古北山地区小黄山蛇绿岩地质特征[J].西北地质,2008,41(3):55-63.
[7] 赵玉锁,路彦明,马德锡.东准卡拉麦里地区放射虫硅质岩地球化学特征[J].西北地质,2008,41(3):64-70.
[8] 李锦轶,肖序常,汤耀庆,等.新疆东准噶尔卡拉麦里地区晚古生代板块构造的基本特征[J].地质论评,1990,36(4):305-316.
[9] 毕承思,沈湘元,徐庆生,等.新疆贝勒库都克锡矿带含锡花岗岩地质特征[J].岩石矿物学杂志,1993,12(3):213-223.
[10] 刘家远,喻亨祥,吴郭泉.新疆北部卡拉麦里富碱花岗岩带的碱性花岗岩与锡矿[J].有色金属矿产与勘查,1997,6(3):129-135.
[11] 喻亨祥,吴郭泉,刘家远.新疆东准噶尔地区两类花岗岩与两个成矿系列[J].大地构造与成矿学,1998,22(2):119-127.
[12] 苏玉平,唐红峰,刘丛强,等.新疆东准噶尔苏吉泉铝质A型花岗岩的确立及其初步研究[J].岩石矿物学杂志,2006,25(3):175-184.
[13] Eby G N.Chemical Subdivision of the A-type Granitoids:Petrogenetic and Tectonic Implications[J].Geology,1992,20(7):641-644.
[14] 洪大卫,王式洸,韩宝福,等.碱性花岗岩的构造环境分类及其鉴别标志[J].中国科学(B辑),1995,25(4):418-426.
[15] 李永军,吴宏恩,杨高学.新疆青河、奇台县红柳沟—苏吉泉一带1:50 000区域地质矿产调查成果报告[R].乌鲁木齐:新疆有色地质矿产调查局,2008.
[16] Whalen J B,Currie K L,Chappell B W.A-type Granites:Geochemical Characteristics,Discrimination and Petrogenesis[J].Contributions to Mineralogy and Petrology,1987,95(4):407-419.
[17] 邱检生,王德滋,蟹泽聪史,等.福建沿海铝质A型花岗岩的地球化学及岩石成因[J].地球化学,2000,29(4):313-321.
[18] 新疆维吾尔自治区地质矿产局区调队.天山花岗岩地质[M].北京:地质出版社,1985.
[19] Pearce J A,Harris N B W,Tindle A G.Trance Element Discriminiation Diagrams for the Tectonic Interpretation of Granitic Rocks[J].Journal of Petrology,1984,25(4):956-983.
[20] Bowden P,Kinnaird J A.The Petrology and Geochemistry of Alkaline Granites from Nigeria[J].Physics of the Earth and Planetary Interiors,1984,35(1/3):199-211.
[21] 陈丹玲,刘 良,车自成,等.祁漫塔格印支期铝质A型花岗岩的确定及初步研究[J].地球化学,2001,30(6):540-546.
[22] 亨德森.稀土元素地球化学[M].田 丰,施 烺,译.北京:地质出版社,1989.
[23] Sun S S,McDonough W F. Chemical and Isotopic Systematics of Oceanic Basalts:Implications for Mantle Composition and Processes[J].Geological Society,London,Special Publication,1989,42:313-345.
[24] Loiselle M C,Wones D R.Characteristics and Origin of Anorogenic Granites[J].Geological Society of America,Abstracts with Programs,1979,11(7):468.
[25] Chen B,Jahn B M. Genesis of Post-collisional Granitoids and Basement Nature of the Junggar Terrane,NW China:Nd-Sr Isotope and Trace Element Evidence[J].Joumal of Asian Earth Sciences,2004,23(5):691-703.
[26] 李锦轶,肖序常.对新疆地壳结构与构造演化几个问题的简要评述[J].地质科学,1999,34(4):405-419.
[27] King E M,Valley J W,Davis D W,et a1. Oxygen Isotope Ratios of Archean Plutonic Zircons from Granite-greenstone Belts of the Superior Province:Indicator of Magmatic Source[J].Precambrian Research,1998, 92(4):365-387.
[28] Pearce J A. Sources and Settings of Granitic Rocks[J].Episodes,1996,19(4):120-125.
[29] 韩宝福,何国琦,王式洸.后碰撞幔源岩浆活动、底垫作用及准噶尔盆地基底的性质[J].中国科学(D辑),1999,29(1):16-21.

Memo

Memo:
-
Last Update: 2010-03-20