滇西腾冲新岐花岗岩年代学、地球化学及其构造意义
Geochronology and Geochemistry of Granites in the Tengchong Xinqi Area, Western Yunnan and Their Tectonic Implication
查看参考文献35篇
|
文摘
|
为探明滇西腾冲地区含矿花岗岩特征、钨锡多金属矿的成矿与成岩关系,以及花岗岩在区域构造上的意义,对腾冲新岐地区古永岩体与新岐岩体开展了系统的地球化学研究。结果表明,两岩体均具有高硅、高钾、富碱、富铝、低钛等特征。其 CaO/Na_2O、Rb/Ba、Rb/Sr值反应其源岩为富黏土质砂岩,微量及稀土特征差异表明其具有不同的结晶演化过程。锆石U-Pb定年获得古永岩体的成岩年龄为62. 9±1. 9 Ma,新岐岩体的成岩年龄为61. 9±1. 4 Ma,表明二者应为同时或近乎同时侵入于该地区,在形成年代上无明显界限。在区域上,两岩体成岩年龄与冈底斯林子宗火成岩年龄60~ 64. 47 Ma相当,是冈底斯东南缘对印度板块与欧亚板块初始碰撞的响应。 |
|
其他语种文摘
|
In order to detect the features of ore-containing granites,the relationship between the Tungsten polymetallic ore mineralization and diagenesis,the regional tectonic significance of granite in the Tengchong region of west Yunnan,a systematical geochemical study on Guyong and Xinqi rock bodies in the Xinqi region of Tengchong was carried out. Results indicated that these two rock bodies have features of high-silicon,high potassium,rich alkaline,rich aluminum,and low titanium. The CaO/Na_2O,Rb /Ba and Rb /Sr values of these rock beds reflected that their sources were clay-rich sandstone; the difference between trace and rare-earth elements contents indicated that the rock beds had different crystalline evolution processes. The diagenesis ages of the Guyong rock body and the Xinqi rock body by Zircon U-Pb dating are 62. 9± 1. 9 Ma and 61. 9 ± 1. 4 Ma,respectively,indicating that they invaded this area simultaneously or almost simultaneously. On the regional perspective,the diagenesis ages of the two rock bodies are similar to that of the Gangdese Lingzizong igneous rock (60 to 64. 47 Ma),which represents the initial collision between the south-eastern edge of the Gangdese- Indian Plate and the Euro-Asian Plate. |
|
来源
|
矿物岩石地球化学通报
,2015,34(1):139-148 【核心库】
|
|
DOI
|
10.3969/j.issn.1007-2802.2015.01.016
|
|
关键词
|
腾冲新岐
;
花岗岩
;
地球化学特征
;
锆石U-Pb
|
|
地址
|
中国科学院地球化学研究所, 矿床地球化学国家重点实验室, 贵阳, 550002
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1007-2802 |
|
学科
|
地质学 |
|
基金
|
中国地质调查局委托项目
|
|
文献收藏号
|
CSCD:5350729
|
参考文献 共
35
共2页
|
|
1.
Garzantie B A. Sedimentary record of the northward flight of India and its collision with Eurasia (Ladakh Himalaya,India).
Geodynamica Acta (Paris),1987,1(4/5):297-312
|
被引
1
次
|
|
|
|
|
2.
Liu Y S. Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS.
Chinese Science Bulletin,2012,55(15):1535-1546
|
被引
1
次
|
|
|
|
|
3.
Ludwig K R. User's manual for isoplot /EX version 3. 00: A geochronological toolkit for microsoft excel.
Brkeley Geochronology Center,Special Publication,2003,4:1-70
|
被引
1
次
|
|
|
|
|
4.
Middlemost E A K. Naming materials in the magma /igneous rock system.
Earth Science Reviews,1994,11(37):215-224
|
被引
1403
次
|
|
|
|
|
5.
Maniar P D. Tectonic discrimination of granites.
Bulletin of the Geological Society of America,1989,101:635-643
|
被引
1923
次
|
|
|
|
|
6.
Patio Douce A E. Phase equilibria and melting productivity in the politic system: Implication for the origin of peralumious granitoids and aluminous granulites.
Contributions to Mineralogy and Petrology,2001,107:202-218
|
被引
1
次
|
|
|
|
|
7.
Peccerillo A. Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area,northern Turkey.
Contributions to Mineralogy and Petrology,1976,58:63-81
|
被引
1606
次
|
|
|
|
|
8.
Sylvester P J. Post-collisional strongly peraluminous granites.
Lithos,1998,45:29-44
|
被引
792
次
|
|
|
|
|
9.
Vavra G. Multiple zircon growth and recrystallization during poly phase Late Carboni-ferous to Triassic metamorphism in granulites of the Ivrea Zone(Southern Alps) : An ion microprobe(SHRIMP) study.
Contributions to Mineralogy and Petrology,1996,122:337-358
|
被引
230
次
|
|
|
|
|
10.
Vavra G. Internal morphology,habit and U-Th-Pb microanalysis of amphibole to granulite facies zircon: Geochronology of the Ivren Zone(Southern Alps).
Contributions to Mineralogy and Petrology,1999,134:380-404
|
被引
268
次
|
|
|
|
|
11.
Wan X. Discovery of the latest Cretaceous planktonic foraminifera from Gyirong of southern Tibet and its chronostratigraphic significance.
Acta Palaeontologica Sinica,2002,41(1):89-95
|
被引
6
次
|
|
|
|
|
12.
Xu Y G. Temporal-spatial distribution and tectonic implications of the batholiths in the Gaoligong-Tengliang-Yingjiang area,western Yunnan: Constraints from zircon U-Pb ages and Hf isotopes.
Asian Earth Sciences,2011,53:151-175
|
被引
2
次
|
|
|
|
|
13.
Yin A. Geologic evolution of the Himalayan-Tibetan orogeny.
Earth and Planetary Science,2002,28:211-280
|
被引
1
次
|
|
|
|
|
14.
Yuan H L. Accurate U-Pb and trace element determinations of zircon by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry.
Geostandards Geoanalytical Research,2004,28(3):353-370
|
被引
717
次
|
|
|
|
|
15.
陈吉琛. 腾冲-梁河地区含锡花岗岩序列-单元研究.
云南地质,1991,10(3):241-289
|
被引
25
次
|
|
|
|
|
16.
董方浏. 滇西腾冲新生代花岗岩：成因类型与构造意义.
岩石学报,2006,22(4):927-937
|
被引
41
次
|
|
|
|
|
17.
江彪. 滇西腾冲大松坡锡矿区晚白垩世铝质A型花岗岩的发现及其地质意义.
岩石学报,2012,28(5):1477-1492
|
被引
20
次
|
|
|
|
|
18.
刘增乾.
三江地区构造岩浆带的划分与矿产分布规律,1993
|
被引
47
次
|
|
|
|
|
19.
吕伯西.
三江地区花岗岩类及其成矿专属性,1993
|
被引
41
次
|
|
|
|
|
20.
毛景文. 云南腾冲地区含锡花岗岩及其与成矿关系.
岩石学报,1987,11(4):32-43
|
被引
20
次
|
|
|
|
|
了解气象卫星更多信息，请访问