Abstract：The Zijinshan rocks in Lvliang area of Shanxi Province, are one of the famous alkaline plutons in China. The petrography and petrogeochemistry of the main rocks of the rock mass were studied to explore the material source and geological significance of Zijinshan alkaline rock mass. The results show that Zijinshan rocks of all stages show characters of low silicon, rich alkali and high potassium, which indicates zijinshan rocks belong to potassium alkaline rocks. These rocks demonstrate a high degree of fractionation and are characterized by the richness of LREE and the poorness of HREE, without obvious Eu anomaly. The trace element pattern exhibits the enrichment of large ion lithophile elements, such as Rb, Ba, K and Sr, and relative depletion of high field strength elements, such as Th, Nb, Ta, La, Ce, Nd, P and Ti. The magma of Zijinshan rocks comes from a deeper source and is closely related to the enriched mantle. The mechanism of magma evolution is mainly partial melting and it may be inter-contamination of continental crust materials. Combined with the characteristics of alkaline and partial alkaline rocks of same age in many places in Shanxi, the authors deduce that the alkaline magma activity in the middle of North China during the Early Cretaceous is closely to the destruction of North China Craton under the background of the subduction of Pacific plate.
郭喜运. 华北克拉通西部临县紫金山碱性岩体地球化学特征及地质意义[J]. 中国地质调查, 2020, 7(5): 66-76.
GUO Xiyun. Geochemical characteristics and geological implication of Zijinshan alkaline rocks in Lin County in the west of North China Craton. , 2020, 7(5): 66-76.
[1] 周玲棣,赵振华,周国富.我国一些碱性岩的同位素年代学研究[J].地球化学,1996,25(2):164-171. [2] 任康绪. 碱性岩研究进展述评[J].化工矿产地质,2003,25(3):151-163. [3] 张宏法,陈刚,鲍洪平,等.山西临县紫金山碱性杂岩内二长岩锆石U-Pb年代学及其意义[J].矿物学报,2011,31(1):70-79. [4] 陈刚,丁超,徐黎明,等.鄂尔多斯盆地东缘紫金山侵入岩热演化史与隆升过程分析[J].地球物理学报,2012,55(11):3731-3741. [5] 王亚莹,蔡剑辉,阎国翰,等.山西临县紫金山碱性杂岩体SHRIMP锆石U-Pb年龄、地球化学和Sr-Nd-Hf同位素研究[J].岩石矿物学杂志,2014,33(6):1052-1072. [6] Ying J F,Zhang H F,Sun M,et al.Petrology and geochemistry of Zijinshan alkaline intrusive complex in Shanxi Province,western North China Craton:Implication for magma mixing of different sources in an extensional regime[J].Lithos,2007,98(1/4):45-66. [7] 肖媛媛,任战利,秦江锋,等.山西临县紫金山碱性杂岩LA-ICP-MS锆石U-Pb年龄、地球化学特征及其地质意义[J].地质论评,2007,53(5):656-663. [8] 杨兴科,晁会霞,郑孟林,等.鄂尔多斯盆地东部紫金山岩体SHRIMP测年地质意义[J].矿物岩石,2008,28(1):54-63. [9] 杨永恒,杨兴科.紫金山岩体的热力构造类型、期次及其对鄂尔多斯盆地东缘多种能源矿产的影响作用[J].地球学报,2007,28(6):620-626. [10] 张宏法,陈刚,鲍洪平,等.山西临县紫金山碱性火山机构岩体岩浆演化——岩相学及岩石矿物学的证据[J].西北大学学报:自然科学版,2010,40(1):111-120. [11] 王亚莹,蔡剑辉,阎国翰,等.山西临县紫金山岩体地球化学、矿物学特征及岩体成因[J].现代地质,2015,29(4):896-911. [12] 胡建勇,周安朝.山西临县紫金山碱性杂岩体的地球化学特征[J].太原理工大学学报,2007,38(4):339-343. [13] Middlemost E A K.Naming materials in the magma/igneous rock system[J].Earth-Sci Rev,1994,37(3/4):215-224. [14] Peccerllo A,Taylor S R.Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area,Northern Turkey[J].Contribut Mineral Petrol,1976,58(1):63-81. [15] Sun S S,McDonough W F.Chemical and isotopic systematics of oceanic basalts:implications for mantle composition and proce-sses[M]//Saunders A D,Norry M J.Magmatism in the Ocean Basins.Geological Society,London,Special Publications,1989,42(1):313-345. [16] Fitton J G,Upton B G J.Alkaline Igneous Rocks[M].London:Blackwell Scientific Publications,1987. [17] 蔡剑辉,阎国翰,许保良,等.太行山—大兴安岭东麓晚中生代碱性侵入岩岩石地球化学特征及其意义[J].地球学报,2006,27(5):447-459. [18] Downes H.Formation and modification of the shallow sub-continental lithospheric mantle:a review of geochemical evidence from ultramafic xenolith suites and tectonically emplaced ultramafic massifs of western and central Europe[J].J Petrol,2001,42(1):233-250. [19] 蔡剑辉,阎国翰,牟保磊,等.天津蓟县孙各庄碱性杂岩体年代学和岩石地球化学特征[J].吉林大学学报:地球科学版,2011,41(6):1901-1913. [20] Saunders A D,Norry M J,Tarney J.Origin of MORB and chemically-depleted mantle reservoirs:Trace element constraints[J].J Petrol,1988(1):415-445. [21] Weaver B L.The origin of ocean island basalt end-member compositions:Trace element and isotopic constraints[J].Earth Planet Sci Lett,1991,104(2/4):381-397. [22] Rollision H R.Rock Geochemistry[M].杨学明,杨晓勇,陈双喜,译.合肥:中国科学技术大学出版社,2000. [23] Rittmann A.Note to the contribution by V.GOTTINI on the "Serial character of the volcanic rocks of pantelleria"[J].Bull Volcanol,1969,33(3):979-981. [24] Wilson M.Igneous Petrogenesis:A Global Tectonic Approach[M].London:Unwin Hyman,1989. [25] 路凤香,桑隆康.岩石学[M].北京:地质出版社,2002. [26] Allègre C J,Minster J F.Quantitative models of trace element behavior in magmatic processes[J].Earth Planet Sci Lett,1978,38(1):1-25. [27] 王永,陈正乐,陈柏林,等.山西平顺西安里铁矿区中生代闪长岩年代学及地球化学特征[J].岩矿测试,2013,32(1):131-144. [28] 张玉生,李建荣,张诚,等.山西省中生代侵入岩新认识[J].中国地质调查,2020,7(2):45-57. [29] 魏荣珠,李好斌,徐朝雷,等.对山西隆起区中新生代构造演化的认识[J].中国地质调查,2017,4(1):24-34. [30] 刘超辉,刘福来,赵国春.华北克拉通中部造山带早元古代盆地演化[J].岩石学报,2012,28(9):2770-2784. [31] 陈凌,危自根,程骋.从华北克拉通中、西部结构的区域差异性探讨克拉通破坏[J].地学前缘,2010,17(1):212-228. [32] 郭锋. 俯冲陆壳和洋壳对华北克拉通中生代岩石圈地幔改造的氧同位素记录[J].岩石矿物学杂志,2013,32(5):593-603. [33] 朱日祥,徐义刚,朱光,等.华北克拉通破坏[J].中国科学:地球科学,2012,42(8):1135-1159. [34] 林伟,王军,刘飞,等.华北克拉通及邻区晚中生代伸展构造及其动力学背景的讨论[J].岩石学报,2013,29(5):1791-1810. [35] 焦亚先,邱楠生,李文正,等.鄂尔多斯盆地中—新生代岩石圈厚度演化——来自地热学的证据[J].地球物理学报,2013,56(9):3051-3060. [36] 任战利,赵重远.鄂尔多斯盆地与沁水盆地中生代晚期地温场对比研究[J].沉积学报,1997,15(2):134-137. [37] 邢作云,邢集善,赵斌,等.华北地区两个世代深部构造的识别及其意义——燕山运动与深部过程[J].地质论评,2006,52(4):433-441.
2020, Vol. 7 
