[1]鹿獻章,周博文,彭 智,等.北淮陽東段河棚巖體地球化學特征、LA-ICP-MS鋯石U-Pb年齡及地質意義*[J].華東地質,2017,38(02):81-90.[doi:10.16788/j.hddz.32-1865/P.2017.02.001]
 LU Xian-zhang,ZHOU Bo-wen,PENG Zhi,et al.Geochemical characteristics and LA-ICP-MS zircon U-Pb geochronology of the Hepeng intrusion in the eastern section of North Huaiyang and their geological significance[J].East China Geology,2017,38(02):81-90.[doi:10.16788/j.hddz.32-1865/P.2017.02.001]
點擊復制

北淮陽東段河棚巖體地球化學特征、LA-ICP-MS鋯石U-Pb年齡及地質意義*()
分享到:

《華東地質》[ISSN:2096-1871/CN:32-1865/P]

卷:
38
期數:
2017年02期
頁碼:
81-90
欄目:
基礎地質
出版日期:
2017-06-15

文章信息/Info

Title:
Geochemical characteristics and LA-ICP-MS zircon U-Pb geochronology of the Hepeng intrusion in the eastern section of North Huaiyang and their geological significance
文章編號:
2096-1871(2017)02-081-10
作者:
鹿獻章1周博文23彭 智1邱軍強14陳 芳14董婷婷14柳丙全1陳志洪3
(1. 安徽省地質調查院,合肥230001; 2. 中國地質科學院,北京100037;3. 中國地質調查局南京地質調查中心,南京210016; 4. 安徽省大陸成礦研究中心,合肥230001)
Author(s):
LU Xian-zhang1ZHOU Bo-wen23PENG Zhi1QIU Jun-qiang14CHEN Fang14DONG Ting-ting14LIU Bing-quan1CHEN Zhi-hong3
(1. Geological Survey of Anhui Province,Hefei 230001,China;2. Chinese Academy of Geological Sciences, Beijing 100037, China;3. Nanjing Centre, China Geological Survey, Nanjing 210016, China;4. Continental Mineralization Research Center of Anhui Province,Hefei 230001,China)
關鍵詞:
巖石地球化學 鋯石U-Pb定年 構造環境 河棚巖體 北淮陽
Keywords:
geochemistry zircon U-Pb dating tectonic environment Hepeng intrusion North Huaiyang
分類號:
P597+.3; P588.12
DOI:
10.16788/j.hddz.32-1865/P.2017.02.001
文獻標志碼:
A
摘要:
河棚巖體位于北淮陽東段河棚地區,為似斑狀細粒黑云鉀長花崗巖,具較高的SiO2和堿質含量,屬于偏鋁質堿性系列巖石。稀土元素含量中等,LaN/YbN與LREE/HREE值均較大,HREE相對于LREE明顯虧損,Eu弱負異常,具較弱的Ce負異常,輕稀土分餾較明顯,重稀土較平坦,屬輕稀土富集型。巖石富集大離子親石元素Rb、Ba、K和高場強元素Th、U、Ce、Zr、Hf,虧損Nb、Ta、Sr、Ti、P。通過LA-ICP-MS鋯石U-Pb定年,獲得河棚巖體206Pb/238U年齡為128.6±2.1 Ma,表明該巖體形成于燕山晚期,是早白堊世早期巖漿活動的產物,代表河棚巖體的成巖年齡。主、微量元素地球化學特征表明河棚巖體屬于非造山A型花崗巖,形成于燕山晚期伸展構造環境。
Abstract:
The Hepeng intrusion, located in the Hepeng area in the eastern section of North Huaiyang, consists mainly of porphyritic fine-grained biotite-feldspar granite. It has high SiO2 and alkali contents, belonging to the metaluminous alkaline rock series. The Hepeng intrusion is characterized by medium REE content, high LaN/YbN and LREE/HREE ratios, distinct HREE depletion relative to LREE, weak negative Eu anomalies and weaker negative Ce anomalies, and distinct fractionation of LREE relative to that of HREE, indicating it belongs to a LREE-enriched terrane. Large-ion lithophile elements(LILE), such as Rb, Ba and K, and high field strength element(HFSE), such as Th, U, Ce, Zr and Hf, are significantly enriched, while Nb, Ta, Sr, Ti and P are depleted. LA-ICP-MS zircon U-Pb dating yields a 206Pb/238U age(128.6+2.1 Ma)for the Hepeng intrusion, indicating the diagenetic age of the Hepeng intrusion is in late Yanshanian and the Hepeng intrusion was the product of the Early Cretaceous magmatic activity. Geochemical characteristics of major and trace elements show that the Hepeng intrusion belongs to the anorogenic A-type granites and formed in extensional tectonic environment at late Yanshanian period.

參考文獻/References:

[1] 徐樹桐,江來利,劉貽燦,等.大別山(安徽部分)的構造格局和演化過程[J].地質學報,1992,66(1):1-14.

[2] 周泰禧,陳江峰,張 巽,等.北淮陽花崗巖—正長巖帶地球化學特征及其大地構造意義[J].地質論評,1995,41(2):144-151.
[3] 杜建國,張 鵬,姜俊峰.安徽北淮陽地區構造巖相帶的劃分與對比[J].安徽地質,1996,6(1):19-27.
[4] 杜建國.大別造山帶中生代巖漿作用與成礦地球化學研究[D].合肥:合肥工業大學,2000.
[5] 彭智.北淮陽東段基礎地質評述[J].安徽地質,2004,14(3):172-176.
[6] 彭智,陸三明,徐曉春.北淮陽構造帶東段金—多金屬礦床區域成礦規律[J].合肥工業大學學報(自然科學版),2005,28(4):364-368.
[7] 陸三明,彭海輝,盛中烈.北淮陽構造帶東段鉛鋅礦找礦遠景[J].安徽地質,2002,12(2):114-119.
[8] 陸三明,徐曉春,彭 智.北淮陽構造帶東段隱爆角礫巖型多金屬礦床的地質特征及成因[J].地質與勘探,2005,41(3):7-11.
[9] 邱軍強,彭智,陳芳,等.北淮陽東段楊家灣巖體地球化學特征、鋯石U-Pb定年及地質意義[J].華東地質,2016,37(2):89-96.
[10] 徐志剛,陳毓川,王登紅,等.中國成礦區帶劃分方案[M]. 北京: 地質出版社,2008:133-135.
[11] 張懷東,王波華,郝越進,等.安徽沙坪溝斑巖型鉬礦床地質特征及綜合找礦信息[J]. 礦床地質,2012,31(1):41-51.
[12] 陳躍志,桑寶梁.佛子嶺群變質巖石學變質作用及時代的初步研究[J].中國區域地質,1995(3):280-288.
[13] 湯加富,侯明金,石乾華,等.北淮陽地區變質地層序列與構造變形特征[J]. 安徽地質,1995,5(3):50-59.
[14] 陳廷愚,牛寶貴,劉志剛,等.大別山腹地燕山期巖漿作用和變質作用的同位素年代學研究及其地質意義[J].地質學報,1991,65(4):329-336.
[15] 黎彤.化學元素的地球豐度[J].地球化學,1976(3):167-173.
[16] Wright J B. A simple alkalinity ratio and tis application to questions of non-orogenic granite genesis[J].Geological Magazine,1969, 106(4):370-384.
[17] 鐘華明,童勁松,魯如魁,等.西藏日土北部松西—勝利山一帶燕山期高鉀鈣堿性花崗巖的地球化學特征及構造環境[J].地質通報,2007,26(6):730-738.
[18] 任康緒,閻國翰,牟保磊,等.阿拉善斷塊富堿侵入巖巖石地球化學和Nd、Sr、Pb同位素特征及其富堿意義[J]. 地學前緣,2005,12(2):292-302.
[19] 王世偉,周濤發,袁峰,等.銅陵舒家店巖體的年代學和地球化學特征研究[J].地質學報,2011,85(5):849-861.
[20] Taylor S R, Mclennan S M. The continental crust: its composition and evolution[J]. Journal of Geology, 1984,94(4):57-72.
[21] Sun S S, Mcdonough W F. Chemical and isotopic systematics of oceanic basalts:Implications for mantle composition and processes[J]. Geological Society London Special Publications,1989,42(1):313-345.
[22] Liu Y,Gao S,Hu Z,etal.Continental and oceanic crust recycling—induced meltperidotite interactions in the Trans-North China Orogen:U-Pb dating,Hf isotopes and trace elements in zirconsfrom mantle xenolith[J].Journal of Petr
ology,2010,51(1/2):537-571.
[23] 侯可軍,李延河,田有榮.LA-MC-ICP-MS鋯石微區原位U-Pb定年技術[J].礦床地質,2009,28(4): 481-492.
[24] Sláma J,Kosler J,Condon D J,etal. Pleovice zircon-a new natural reference material for U-Pb and Hf isotopic microanalysis[J].Chemical Geology,2008,249(1/2):1-35.
[25] 吳元保,鄭永飛. 鋯石成因礦物學研究及其對 U-Pb 年齡解釋的制約[J]. 科學通報,2004,49(16):1589-1604.
[26] Belousova E A, Griffin W L, O’Reilly S Y, etal.Igneous zircon:Trace element composition as an indicator of source rock type [J].Contributions to Mineralogy &Petrology,2002,143(5):602-622.
[27] Whalen J B, Currie K L, Chappell B W. A-type granites: geochemical characteristics, discrimination and petrogenesis[J].Contributions to Mineralogy &Petrology, 1987,95(4):407-419.
[28] 楊玉柱,袁萬明.A型花崗巖的鑒別標志[J].河北地質學院學報,1993,16(2):621-626.
[29] 吳鎖平,王梅英,戚開靜.A型花崗巖的研究現狀及其述評[J]. 巖石礦物學雜志,2007,26(1):57-66.
[30] 賈小輝,王強,唐功建.A型花崗巖的研究進展及意義[J].大地構造與成礦學,2009,33(3):465-480.
[31] 張旗,冉皞,李承東.A型花崗巖的實質是什么?[J].巖石礦物學雜志, 2012,31(4):621-626.
[32] 張旗.A型花崗巖的標志和判別[J].巖石礦物學雜志,2013,32(2):267-274.[
33] Eby G N. Chemical subdivision of the A-type granitoids: Petrogenetic and tectonic implications[J].Geology,1992, 20(7):641-644.
[34] 李曙光,Hart S R,鄭雙根,等.中國華北、華南陸塊碰撞時代的釤—釹同位素年齡證據[J].中國科學(B輯),1989,19(3):312-319.
[35] Ames L,Tilton G R, Zhou G. Timing of collision of the Sino-Korean and Yangtze cratons:U-Pb zircon dating of coesite-bearing eclogites[J].Geology,1993,21(4):339-342.
[36] 任紀舜,陳廷愚,牛寶貴,等.中國東部及鄰區大陸巖石圈的構造演化與成礦[M].北京:科學出版社,1992:1-203.
[37] Li C,Chen Y J,He S D.Age,mechanism and direction of East Qinling-Dabieshan lithosphere delamination:Petrological evidence and stipulation[J].Chinese Journal of Geochemistry,2001,20(1):59-72.
[38] 馬昌前,楊坤光,明厚利,等.大別山中生代地殼從擠壓轉向伸展的時間:花崗巖的證據[J].中國科學(D輯),2001,33(9):817-827.
[39] Batchelor R A,Bowden P. Petrogenetic interpretation of granitoid rock series using multicationic parameters[J]. Chemical Geology,1985, 48(1/4):43-55.

相似文獻/References:

[1]羅春林,劉高峰,左祖發.贛南坪市花崗巖體LA-ICP-MS鋯石U-Pb年齡、地球化學特征及構造意義[J].華東地質,2016,37(02):79.[doi:10.16788/j.hddz.32-1865/P.2016.02.001]
 LUO Chun-lin,LIU Gao-feng,ZUO Zu-fa.LA-ICP-MS zircon U-Pb ages and geochemical characteristics of the Pingshi granitic pluton in southern Jiangxi and their tectonic significance[J].East China Geology,2016,37(02):79.[doi:10.16788/j.hddz.32-1865/P.2016.02.001]
[2]邱軍強,彭 智,陳 芳,等.北淮陽東段楊家灣巖體地球化學特征、鋯石U-Pb定年及地質意義[J].華東地質,2016,37(02):89.[doi:10.16788/j.hddz.32-1865/P.2016.02.002]
 QIU Jun-qiang.,PENG Zhi,CHEN Fang.,et al.Geochemical characteristics and zircon U-Pb dating of the Yangjiawan plutonin the eastern part of North Huaiyang and their geological significances[J].East China Geology,2016,37(02):89.[doi:10.16788/j.hddz.32-1865/P.2016.02.002]
[3]彭 智,邱軍強,楊義忠,等.北淮陽東段山七巖體地球化學特征、LA-ICP-MS 鋯石U-Pb年齡及地質意義[J].華東地質,2018,39(01):1.[doi:10.16788/j.hddz.32-1865/P.2018.01.001]
 PENG Zhi,QIU Jun-qiang,YANG Yi-zhong,et al.Geochemical characteristics and LA-ICP-MS zircon U-Pb geochronology of the Shanqi intrusion in eastern North Huaiyang and their geological significance[J].East China Geology,2018,39(02):1.[doi:10.16788/j.hddz.32-1865/P.2018.01.001]

備注/Memo

備注/Memo:
*收稿日期:20160701修訂日期:20160922責任編輯:譚桂麗
基金項目:中國地質調查局“安徽北淮陽地區成礦規律與資源潛力調查(項目編號:1212011220547)”和“長江中下游關鍵地區區域地質調查(項目編號:12120113069100)”聯合資助。
第一作者簡介:鹿獻章,1962年生,男,高級工程師,主要從事資源環境地質調查研究。
通訊作者簡介:周博文,1992年生,男,研究生,主要從事區域大地構造學研究。
更新日期/Last Update: 2017-06-16
河北快3技巧之一替数定和值