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[1]胡能高,申文环,王晓霞,等.柴达木盆地北缘鹰峰环斑花岗岩体的岩相学特征[J].地球科学与环境学报,2006,28(04):1-9.
 U Neng-gao,SHEN Wen-huan,WANG Xiao-xia,et al.Petrography Feature of Yingfeng Rapakivi Granite Body in North Margin of Qaidam Basin[J].Journal of Earth Sciences and Environment,2006,28(04):1-9.
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柴达木盆地北缘鹰峰环斑花岗岩体的岩相学特征(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第28卷
期数:
2006年第04期
页码:
1-9
栏目:
出版日期:
2006-12-15

文章信息/Info

Title:
Petrography Feature of Yingfeng Rapakivi Granite Body in North Margin of Qaidam Basin
作者:
胡能高1申文环1王晓霞2孙延贵3蔡欢欢1陈云杰1
1.长安大学地球科学与国土资源学院,陕西西安710054;2.中国地质调查局 发展研究中心,北京100073;3.青海省地质调查院,青海西宁810012
Author(s):
U Neng-gao1SHEN Wen-huan1WANG Xiao-xia2 SUN Yan-g ui3CAI Huan-huan1CHEN Yun-jie1
1. School of Earth Sciences and Resources Management, Chang’ an University, Xi’an 710054, Shaanxi, China; 2. Center of Development and Research, China Geology Survey Bureau, Beijing 100073, China; 3. Qinghai Province Institute of Geology Survey, Xining 810012, Qinghai, China
关键词:
环斑结构环斑花岗岩鹰峰岩体柴北缘构造带中元古代
Keywords:
rapakivi texture rapakivi granite Yingfeng rock body structural belt of north margin of Caidam ba- sin mid-Proterozoic
分类号:
P588.12+1
DOI:
-
文献标志码:
A
摘要:
野外调查表明,鹰峰环斑花岗岩体形成于中元古代,位于柴北缘构造带,呈透镜状夹持在剪切带间。同 时代侵入的还有辉绿岩墙和石英闪长岩奥长花岗斑岩脉,构成双峰式岩石组合。该环斑花岗岩多具无奥环结 构,卵形钾长石球斑十分发育,其体积分数多在50%~60%,粒径多在2~3cm,常以多晶集合体出现,出溶作用 十分强烈。基质结构有中粗粒、细粒和显微文象结构等。石英、钾长石都具两个或多个世代,黑云母多结晶较 晚。按矿物定量分类多属石英正长岩和石英二长岩类。与典型环斑花岗岩相比,该岩体有出露面积小,岩石类 型单调,球斑含量大,大小较均匀且为多晶集合体,出溶作用强烈,基质结构多样,变质变形明显等特征。这些特 征部分起因于加里东期的改造,部分是该地区元古代岩浆作用个性的表现。
Abstract:
According to field investigation, the Yingfeng rapakivi granite is formed in mid-Proterozoic and located between shear belts as a lentiform in the structural belt of north margin of Qaidam basin. There are also diabase dyke and quartz diorite digoclase trondhjemite vein of the same time, which show a character of bimodal magmatic association. In the granite body, pyterlitic texture is very common, and, ovoid megacrystal composed by K-feld- spars which has a megacryst content of 50% to 60%, size about 2 cm to 3 cm, aggregation of several crystals and very intense exsolution effect is very developed. In matrix, medium-coarse grains, fine grains and micrographic texture are the main texture. Quartz and K-feldspar can be divided into two generations, but biotite crystallized later. According to the content of minerals, they belong to quartz syenite and quartz monzonite. Compared with the typical rapakivi granite, Yingfeng complex is characterized by smaller exposing area, monotonous rock types, larger megacryst content, even megacryst size, diversified matrix texture, and obvious deformation and metamor- phism. These characters may be caused mainly by the reforming in Caledonian period and partially by the mag- matic effect of mid-Proterozoic in this area.

参考文献/References:

[1] Ilmari Haapala. Pet rograph y and Geochemis try of the Eu ra- 8 地球科学与环境学报 第 28 卷 joki S tock,A Rapaki vi-granit e C om plex w ith Grei sen-Type Mineralizat ion in Southw est ern Finland[J] . Geol ogi cal su rvey of Finl and,1977,286 :26 128.
[2] R.m. O T,Haapala I. One Hundred Years of Rapakivi Granite [J] . Mineralogy and Pet rology,1995,52 :129 185.
[3] 郁建华,傅会芹,张风兰,等. 华北地台北部非造山环斑花岗 岩及有关岩石[M] . 北京 :中国科学出版社,1996.
[4] 卢欣祥,尉向东,肖庆辉,等. 西秦岭发现奥长环斑花岗岩带 [J] . 地质论评,1998,14(5):535 540.
[5] 王晓霞,王 涛,卢欣祥. 秦岭 粱和老君 山环斑结 构花岗岩 [J] . 地质通报,2002,21(8 /9):523 529.
[6] 王晓霞. 北秦岭中生代 环斑结 构花岗 岩及构 造动力 学背景 [D] . 北京 :中国地质大学,2003.
[7] 王晓霞,王 涛,卢欣祥. 北秦岭中生代沙 河湾岩体环斑结 构及有关问题的讨论[J] . 地球学报,2002,23(1):30 36.
[8] 肖庆辉,卢欣祥, 王 菲 ,等. 柴达木北缘鹰峰环斑花岗岩的时代 及地质意义[J] . 中国科学 :D 辑,2003,33(12):1 193 1 200.
[9] 辛后田,郝国杰,王惠初,等. 柴北缘前震旦纪地层系统的新 认识[J] . 前寒武研究进展,2002,25(2):113 119.
[10] 青海省地 质矿 产局. 青海区 域地 质志[M] . 北 京 :地 质出版 社,1991.
[11] 张建新,万渝 生,许志琴,等. 柴达木北缘德令 哈地区基性麻 粒岩的发 现 及 其形 成 时代[J] . 岩 石 学 报,2001,17(3): 453 458.
[12] 王惠初,陆松年,袁桂邦,等. 柴达木盆地北缘滩间山群的构 造属性及形成时代[J] . 地质学报,2003,22(7):487 493.
[13] Le Maet re. 火成岩分类 及术语词 典[M] . 王碧香,沈 昆, 毕立君,译. 北京 :地质出版社,1991.
[14] At so Vo rm a. On the Pet rochemi st ry of Rapaki vi Granit es w ith Special Ref erence t o the Lai til a M as sif[J] . Geol Su rv Fin land,1976,286 :26.
[15] At so Vorma. Alkali Feldspars of the Wiborg Rapaki vi Massi f in Southeast ern Fin lan d[J] . Bul l comm géol Fin land, 1971,246 :8 72.
[16] Ah ti Sim oren,At so Worma. Amphibole and Bioti te f rom Rapakivi[J] . Bu ll comm géol Finland,1969,238 :5 28.
[17] 赵崇 贺. 北 京密 云 斜长 环斑 花 岗岩 地 质学 与 岩石 学研 究 [C] //中 国地质学会主编. 中国 地质学会第一届 矿物 、岩石 、 地球化学专业学术会议论文选集岩石部分. 北京 :地 质出版 社,1964.
[18] James A S,David A W. Plagioclase Man tl es on Sanidine in Sili cic Lavas,Clear Lake,Calif ornia :Lm plicati ons f or th e Origin of Rapakivi T ex tu re[J] . Geological S oci et y of America Bul letin,1992,104 :728 744.
[19] Demp st er T J,J enkin G R T,RoGers G. The Origin of Rapakivi Texture[J] . Jou rnal of Pet rology,1994,35(4): 963 981.
[20] Lyakhovich V V. Rapakivi :A Possibl e Origin of Ovoids[J] . Int ernat ional Geology Review,1992,34(5):477 488.
[21] S hinkarev N F,Rundkvis t N D. Th e Probl em of th e Formati on of Rapakivi Granit es[J] . Zapisk e Vsesoyz ngo Min erologich esk og o Dos hchesva,1986,6 :643 649.
[22] Savolah ti,Ant t i. The Ahveni st o Massif in Finlan d[J] . Bu ll Comm gé ol Finlande,1956,174 :1 96.
[23] T ut t le O F,Bow en N L. O rigin of Granit e in the Ligh t of Experiment al Studies in the Syst em NaAlSi3 O8 KAlS i3O8 SiO2 H 2O[J] . Geol Soc of Amer,1958,74 :1 153.
[24] Elders,Wi lf red A. Mant led Feldspars f rom the Granit es of Wi sconsin[J] . Journ Geol,1968,76(1):37 49.
[25] S tew art D B. Rapaki vi G ranit e f rom East ern Penobs cot Bay, Maine. Proc. 20th Int ern[J] . Geol Congr,1959,11(A): 293 320.
[26] Rich ter,Wol f ram. Die Feldspat e Des Grani tes Von Eisenkappel (k. rnt en) und Seines Randp orphyres[J] . T scherm Mineral Und Pet rograph Mi t t,B XI,1966(3 /4):439 458.
[27] Brow n P E,Dempst er T J,Hu tt on D H W,et al. Ex tensional T ectonics and Mafi c Plutons in the Ketilidian Rapakivi Grani te Suite of South Greenland[J] . Li thos,2003,67 :1 13.
[28] 许 志琴,杨经绥,吴 才来,等. 柴达 木北缘超高压变 质带形成 与折返的时限及机制[J] . 地质学报,2003,77(2):163 176.

相似文献/References:

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备注/Memo

备注/Memo:
[收稿日期]2005-12-26
[基金项目]国家自然科学基金项目(40372043)
[作者简介]胡能高(1949-),男,浙江东阳人,教授,从事岩石学及地球化学教学与研究。
更新日期/Last Update: 2006-12-20