岩石学报  2021, Vol. 37 Issue (5): 1431-1443, doi: 10.18654/1000-0569/2021.05.07   PDF    
钦杭结合带中段龙头寨群黄竹洞组地质时代的新证据: 流纹岩夹层的SHRIMP锆石U-Pb年龄及地质意义
刘帅1,2, 巫建华1,2, 杨东光1,2, 黄美化1,2, 马树松2, 张山2     
1. 东华理工大学核资源与环境国家重点实验室, 南昌 330013;
2. 东华理工大学地球科学学院, 南昌 330013
摘要: 为进一步查明钦(州湾)-杭(州湾)结合带中段龙头寨群的地质时代及龙头寨群黄竹洞组与上覆南迳组的接触关系,在野外考察、代表性剖面测制的基础上,对粤北始兴司前龙头寨群黄竹洞组变质岩系顶部首次发现的火山岩夹层的2个弱变质流纹岩样品进行了SHRIMP锆石U-Pb年龄测定,获得206Pb/238U加权平均年龄分别为436.2±2.1Ma(n=15,MSWD=1.60)和438.7±2.1Ma(n=16,MSWD=1.17),指示黄竹洞组的地质时代属晚奥陶世-早志留世,为黄竹洞组的地质时代归属提供了证据。结合上覆南迳组碎斑熔岩SHRIMP锆石U-Pb年龄为443.6±5.4Ma,说明黄竹洞组火山岩夹层与南迳组火山岩的锆石U-Pb年龄在误差范围内一致,属同期火山活动的产物,为黄竹洞组与南迳组的接触关系属整合接触提供了时代约束。粤北龙头寨群黄竹洞组顶部火山岩及南迳组火山岩系的发现和地质时代的厘定,为钦-杭结合带中段晚奥陶世-早志留世龙头寨群属活动大陆边缘沉积提供了依据,暗示钦-杭结合带中段加里东造山带属俯冲-碰撞造山带。
关键词: 流纹岩    晩奥陶世-早志留世早期    锆石U-Pb年龄    活动大陆边缘    粤北    
New geological age evidence of Huangzhudong Formation, Longtouzhai Group, northern Guangdong Province: SHRIMP zircons U-Pb age of volcanic interlayer and its geological significance
LIU Shuai1,2, WU JianHua1,2, YANG DongGuang1,2, HUANG MeiHua1,2, MA ShuSong2, ZHANG Shan2     
1. State Key Laboratory Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China;
2. School of Earth Science, East China University of Technology, Nanchang 330013, China
Abstract: To further constrain the geological age of Longtouzhai Group in the middle part of the Qinzhou bay-Hangzhou bay joint zone and the contact relationship between Huangzhudong Formation of Longtouzhai Group and Overlying Nanjing Formation, based on field survey and representative profile measurement, the age of two meta-rhyolites intercalation at the top of the metamorphic rock series of Huangzhudong Formation in the northern side of Hekou basin was conducted by using the SHRIMP zircon U-Pb dating. The two meta-rhyolites have zircon 206Pb/238U weighted average mean ages of 436.2±2.1Ma (n=15, MSWD=1.60) and 438.7±2.1Ma (n=16, MSWD=1.17), respectively. The geological age of Huangzhudong Formation belongs to Late Ordovician-Early Silurian, which provides evidence for the attribution of the geological age of Huangzhudong Formation. They are consistent with the zircon U-Pb isotope ages of the porphyry lavas (443.6±5.4Ma, n=13, MSWD=1.3) in the Nanjing Formation, illustrating the synchronized volcanic activities and it provides an era constraint for the contact relationship between Huangzhudong Formation and Nanjing Formation. The discovery of volcanic rocks at top of Huangzhudong Formation of Longtouzhai Group in northern Guangdong Province and the determination of geological age provide a basis for the active continental margin deposition of Longtouzhai Group in Late Ordovician-Early Siliurian in the middle part of Qin-Hang joint zone, suggesting that the Caledonian orogenic belt in the middle part of the Qin-Hang joint zone is a subduction-collision orogenic belt.
Key words: Rhyolite    Late Ordovician to Early Silurian    SHRIMP zircon data    Active continental margin    Northern Guangdong    

龙头寨群一名系广东地质局761队4分队创名于曲江县灵溪的龙头寨山,原指粤北地区中上奥陶统的砂页岩、石灰岩及部分硅质岩,并以中部石灰岩为标志划分为下、中、上三个亚群。广东省地质矿产局(1996)在清理岩石地层单位时,将原龙头寨群下亚群上部、中亚群和上亚群分别引用江西南部的半坑组、古亭组、黄竹洞组;丁辉等(2017)在粤北始兴司前-赣南全南南迳一带创建南迳组,并将其归入龙头寨群,作为龙头寨群顶部的一个组。至此,龙头寨群自下而上进一步划分为半坑组、古亭组、黄竹洞组和南迳组。半坑组未见化石,广东省地质矿产局(1996)根据整合于其下的长坑水组含中奥陶世笔石化石(南颐, 1995),推测其地质时代属中晚奥陶世。古亭组在粤北含牙形刺化石Cornuodus longibsis、Paltodus inconstans、Oistodus sp.等,指示的地质时代属早-中奥陶世(安太庠, 1987);在赣南含珊瑚化石Palaeophyllum sp.、腕足类化石Ancistorhyncha sp.和腹足类化石Donaldiella sp.等,指示的地质时代属晚奥陶世(江西省地质矿产厅, 1997)。黄竹洞组在粤北未见化石,广东省地质矿产局(1996)推测其地质时代为晚奥陶世;赣南黄竹洞组下段产晚奥陶世笔石化石,上段近2000m厚的沉积碎屑岩层也未见化石,江西省地质矿产厅(1997)将黄竹洞组下段归于晚奥陶世,并推测黄竹洞组上段可能还包括早志留世沉积。南迳组为火山岩系,赣南南迳盆地安山岩和英安岩SHRIMP锆石U-Pb年龄分别为442.1±3.9Ma和439.9±3.7Ma(丁辉等, 2017),粤北河口盆地碎斑熔岩SHRIMP锆石U-Pb年龄为443.6±5.4Ma,指示的地质时代属晚奥陶世末期-早志留世初期(巫建华等, 2012; 丁辉等, 2017; 刘帅等, 2018)。可见,粤北黄竹洞组及赣南黄竹洞组上段的地质时代归属及其与南迳组的时代关系还缺乏有效的制约。

另一方面,钦(州湾)-杭(州湾)结合带是扬子古板块与华夏微古板块的巨型构造结合带,经历了不同性质与规模的构造运动(张国伟等, 2013),因地质构造复杂,分岐较大,特别是早古生代结合带两侧的大陆边缘属性存在不同的认识。钦-杭结合带中段由半坑组、古亭组和黄竹洞组组成的原龙头寨群,为一套细粒长石石英砂岩、绢云板岩、粉砂质板岩或千枚岩夹碳酸盐岩,上部夹含凸镜状砾岩的沉积组合,似乎显示被动大陆边缘的沉积特征。但粤北始兴-赣南全南一带南迳组火山岩晚奥陶世末期-早志留世初期的地质时代厘定(巫建华等, 2012; 丁辉等, 2017; 刘帅等, 2018)和岛弧火山岩的地球化学特征确认(丁辉, 2016; 劳玉军, 2017; 刘帅等, 2018; 马树松等, 2019),说明钦-杭结合带中段晚奥陶世末期-早志留世初期可能属活动大陆边缘。可见,黄竹洞组地质时代以及与南迳组的接触关系的确认,是解决龙头寨群沉积构造属性和钦-杭结合带中段早古生代构造背景的关键。为此,本文以钦-杭结合带中段粤北始兴河口一带龙头寨群黄竹洞组顶部首次发现的火山岩夹层研究对象,通过野外考察、代表性地层剖面测制、火山岩岩相学研究和SHRIMP锆石U-Pb测年测定,确定黄竹洞组的地质时代,再结合上覆南迳组火山岩锆石U-Pb年龄确定黄竹洞组与南迳组的时代关系,并探讨钦-杭结合带中段早古生代的构造背景。

1 大地构造背景

粤北位于扬子古板块与华夏微古板块之间的钦-杭巨型构造结合带中段(周永章等, 2012)以东,华夏微古板块西部边缘(图 1a)。钦-杭结合带自早元古代,经中、新元古代至早古生代大致经历了“三合、两开”(杨明桂和梅勇文, 1997)的构造演化。早元古代,随着全球哥伦比亚超级大陆的形成,扬子陆块与华夏陆块连为一体,形成统一的华南原始陆壳;中元古代早期,随着哥伦比亚超级大陆裂解,华南原始陆壳开始分离为以古华南洋相隔的扬子始板块和华夏微始板块(胡雄健等, 1991; 邢凤鸣等, 1992; 甘晓春等, 1995, 1996; 杨明桂和梅勇文, 1997; 李献华等, 1994, 1998; 刘锐等, 2009; 于津海等, 2009; 刘潜, 2013; 梁锦等, 2015);新元古代早期,随着罗迪尼亚超级大陆形成,古华南洋闭合,扬子始板块与华夏微始板块拼合成统一的华南始板块(Li et al., 2007, 2008c);南华纪-早古生代早期,随着罗迪尼亚(Rodinia)超级大陆的裂解,华南始板块沿钦杭构造带再次裂解为以洋盆相隔的扬子古板块和华夏微古板块(彭松柏等, 2006; 王鹤年和周丽娅, 2006; Yan et al., 2006; Yu et al., 2008; 何卫红等, 2014);早古生代晚期,华南洋再次关闭形成钦杭加里东期结合带,扬子古板块与华夏微古板块再次拼合,地壳隆升遭受剥蚀,沿拼合带多数地区缺失志留纪地层,发育奥陶纪-志留纪岛弧型花岗岩、火山岩和区域绿片岩相-低角闪岩相变质作用(杨树锋等, 1995; 张芳荣等, 2009; 邢光福等, 2013; 何卫红等, 2014; 易立文等, 2014; 曾长育等, 2015; 劳玉军, 2017; 马树松等, 2019)。

图 1 钦杭带基本构造格架(a, 据陈毓川等, 2013)和赣南-粤北地区地质简图(b) 1-第四系;2-泥盆系;3-上奥陶统-下志留统火山岩;4-寒武系-上奥陶统变质砂岩;5-燕山中期花岗岩;6-印支晚期花岗岩;7-印支早期花岗岩;8-加里东期花岗岩;9-地质界线;10-角度不整合接触;11-区域深大断裂和主要断裂;12-剖面位置 Fig. 1 The basic tectonic framework of Qin-Hang joint zone (a, after Chen et al., 2013) and geological sketch map of the South Jiangxi-North Guangdong (b) 1-Quaternary; 2-Devonian; 3-Upper Ordovician-Lower Silurian volcanic rocks; 4-Cambrian-Upper Ordovician metamorphic sandstone; 5-Middle Yanshanian granite; 6-Late Indosinian granites; 7-Early Indosinan granites; 8-Caledonian granites; 9-geological boundary; 10-angular unconformity contact; 11-regional abyssal faults and major faults; 12-section position
2 剖面简介

粤北黄竹洞组地层出露局限,植被茂密,天然露头较少,为进一步确定黄竹洞组类复理石沉积层序,在粤北河口地区选择一段岩性出露较好的地段,测制了剖面A-A′(图 1b图 2图 3),剖面起点坐标为24°45′39″N、114°05′12″E,终点坐标为24°44′03″N、114°04′58″E,剖面层序描述如下:

图 2 黄竹洞组碳质板岩与火山岩夹层 (a)碳质板岩与火山岩互层剖面;(b)碳质板岩局部放大;(c)夹层火山岩局部放大 Fig. 2 Carbonaceous slate and volcanic interbedded of Huangzhudong Formation (a) interbedded profile of carbonaceous slate and volcanic rock; (b) fractionated gain of carbonaceous slate; (c) fractionated gain of interbedded volcanic rocks

图 3 粤北黄竹洞组实测地层剖面图(A-A′) Fig. 3 Geological section of the Huangzhudong Formation in northern Guangdong Province (A-A′)

上覆地层:南迳组碎斑熔岩、流纹岩、流纹质凝灰岩(未及顶)>69.12m

——————————————整合——————————————

黄竹洞组(O3hz)            >430.04m

(18) 浅黄色细粒石英砂岩夹火山岩及薄层粉砂岩      98.04m

(17) 灰色碳质板岩            0.51m

(16) 流纹质            0.51m

(15) 灰色碳质板岩            0.45m

(14) 流纹岩            4.30m

(13) 灰色碳质板岩            0.85m

(12) 流纹岩、流纹质凝灰岩            4.71m

(11) 灰色碳质板岩            0.28m

(10) 碎斑熔岩、流纹岩            4.32m

(9) 灰色碳质板岩            0.34m

(8) 碎斑熔岩            2.28m

(7) 灰色碳质板岩            0.28m

(6) 透镜状流纹岩            0.27m

(5) 片理化灰色碳质板岩夹薄层灰褐色硅化粉砂岩      67.96m

(4) 浅灰色粉砂岩夹紫红色砂岩夹少量灰色碳质板岩      101.28m

(3) 黄褐色石英砂岩与浅灰色粉砂质板岩互层      57.04m

(2) 紫红色细粒砂岩和灰绿色条带状粉砂岩互层      23.10m

(1) 紫红色细粒石英砂岩(未及底)      45.08m

在实测剖面A-A′上,黄竹洞组底部主要为紫红色细粒石英砂岩、紫色细粒砂岩与灰绿色条带状粉砂岩互层、黄褐色石英砂岩与浅灰色粉砂质板岩互层、浅灰色粉砂岩夹紫红色砂岩互层为主(图 2a),厚21.3~101.28m;中部主要为灰色碳质板岩与火山岩互层(图 2b, c),碳质板岩厚度不大,火山岩厚度从下到上厚度有逐增趋势;顶部主要为火山岩与片理化灰色碳质板岩互层、片理化灰色碳质板岩夹薄层灰褐色硅化粉砂岩组合,局部可见透镜状火山岩,夹层火山岩与浅变质岩组合的产状一致(图 3)。黄竹洞组与上覆南迳组凝灰岩为整合接触。

3 岩相学特征

粤北黄竹洞组流纹岩遭受了变质变形改造,但变质程度低,仅达低级绿片岩相,原始结构基本保存,容易识别。显微镜下观察发现,流纹岩变质作用明显,可见绢云母定向排列充填在基质中(图 4);样品具斑状结构(图 4a);斑晶含量约占45%,主要为石英(30%)、长石(5%)和云母(10%);石英斑晶晶形整体较差,半自形-他形,干涉色一级白至一级黄白,波状消光,具有熔蚀现象,呈不规则港湾状(图 4a, b, f, g);黑云母呈条带状,正交偏光下呈棕黄色和蓝色(图 4b, d);大部分长石斑晶发生了蚀变作用,绢云母化比较明显(图 4c, d, f);局部可见保存较好的斜长石,具聚片双晶(图 4c, d, h),可见少量钾长石(图 4a);基质为隐晶质(55%),由石英、长石微晶和绢云母(白云母)定向排列组成。

图 4 粤北黄竹洞组流纹岩显微照片 (a)斑状结构;(b)条带状黑云母;(c)长石绢云母化;(d、h)长石聚片双晶;(e、g)石英斑晶熔蚀;(f)长石蚀变. Q-石英;Pl-斜长石;Bt-黑云母;Ms-白云母;Ser-绢云母;Kfs-钾长石 Fig. 4 Rhyolitic micrographs of Huangzhudong Formation in northern Guangdong Province (a) porphyritic texture; (b) stripped biotite; (c) sericitization of feldspar; (d, h) polycrystalline twin of feldspar; (e, g) corrosion of quartz porphyry; (f) corrosion of feldspar. Q-quartz; Pl-plagioclase; Bt-biotite; Ms-muscovite; Ser-sericite; Kfs-k-feldspar
4 火山岩锆石U-Pb年龄 4.1 分析方法

为确定黄竹洞组夹层火山岩的地质时代,在剖面上选取火山岩新鲜样品HK101和HK102各10kg,碎样至80~120目,由南昌华地科技有限公司利用重力法、电磁法分选出锆石,在双目镜下挑选晶形和透明度较好的锆石颗粒;将样品锆石与标样锆石一起制靶固结后,用环氧树脂固定、抛光,在光学显微镜下进行锆石样品的反射光和透射光观察,在扫描电镜下拍摄阴极发光图像。透射光、反射光和阴极发光成像SHRIMP锆石U-Th-Pb同位素测定在中国地质科学院地质研究所(北京离子探针中心)完成。测试仪器为澳大利亚科学仪器公司制造的SHRIMP-Ⅱ型。详细分析流程及计算原理见宋彪等(2002)。使用Ludwig博士编写的Squid 1.0及Isopolt程序对分析数据进行处理及年龄计算。测试结果见表 1

表 1 黄竹洞组流纹岩SHRIMP锆石U-Pb分析结果 Table 1 SHRIMP zircon U-Pb dating of the volcanic rocks of Huangzhudong Formation
4.2 分析结果

样品HK101和HK102流纹岩中锆石均呈自形长柱状或双锥状,晶形较好,可见清晰地韵律环带(图 5);大部分锆石长度位于120~245μm之间。样品HK101中15颗测试锆石的U含量为148×10-6~886×10-6(均值为488×10-6),Th含量为60×10-6~284×10-6(均值为159×10-6),Th/U值为0.28~0.46(均值0.35);样品HK102中15颗锆石(16个测点),U含量为142×10-6~633×10-6(均值365×10-6),Th含量为60×10-6~349×10-6(均值为166×10-6),Th/U值为0.33~0.63(均值为0.47);具有岩浆成因锆石的成分特征(Williams and Claesson, 1987; Rubatto, 2002; 吴元保和郑永飞, 2004)。样品HK101的15个测试点的206Pb/238U年龄变化范围为444~427Ma,在U-Pb协和曲线上集中分布(图 6),加权平均值为436.2±2.1Ma (MSWD=1.6);样品HK102的16个测试点的206Pb/238U年龄变化范围为452~429Ma,在U-Pb协和图中集中分布(图 6),加权平均年龄值为438.7±2.1Ma (MSWD=1.17)。可见,2个样品的锆石U-Pb年龄为439~436Ma,代表流纹岩的形成年龄。

图 5 粤北黄竹洞组流纹岩锆石阴极发光图像 Fig. 5 Cathodoluminescence photos (CL) images of zircons from rhyolites of Huangzhudong Formation in northern Guangdong Province

图 6 粤北黄竹洞组流纹岩锆石U-Pb年龄谐和图 Fig. 6 U-Pb concordia diagrams of zircons from rhyolites of Huangzhudong Formation in northern Guangdong Province
5 地质意义 5.1 龙头寨群黄竹洞组的地质时代属晚奥陶世-早志留世早期

本文获得的龙头寨群黄竹洞组顶部流纹岩的SHRIMP锆石206Pb/238U年龄为439~436Ma,根据《国际年代地层表》(2018/08版),中志留统/下志留统、下志留统/上奥陶统和上奥陶统/中奥陶统的界限分别划在433.4±0.8Ma、443.8±1.5Ma和458.4±0.9Ma(樊隽轩等, 2018),指示流纹岩的地质时代属早志留世早期。考虑到黄竹洞组顶部流纹岩之下的变质沉积岩层厚约2000m,且在赣南的黄竹洞组底部产有五峰期笔石化石(江西省区域地质调查队, 1988)以及下伏的古亭组产有晚奥陶世的牙形刺化石(安太庠, 1987),将龙头寨群黄竹洞组的地质时代归于晚奥陶世-早志留世早期是可靠的。

① 江西省区调地质调查队. 1988. 江西省崇义地区“下关群”时代的研究报告

5.2 龙头寨群黄竹洞组与南迳组呈整合接触关系

丁辉等(2017)将赣南全南一带火山岩创建南迳组时,依据南迳组以安山岩-英安岩为主夹板岩、千枚岩,而龙头寨群半坑组、古亭组和黄竹洞组以砂页岩、石灰岩及部分硅质岩为主顶部夹火山岩,且半坑组、古亭组和黄竹洞组的化石资料指示的地质时代与南迳组同位素年龄数据指示的地质时代吻合,认为黄竹洞组与南迳组为整合接触,并将南迳组归入龙头寨群。本文获得的黄竹洞组顶部火山岩夹层流纹岩SHRIMP锆石加权平均值年龄分别为436.2±2.1Ma(n=15,MSWD=1.60)和438.7±2.1Ma(n=16,MSWD=1.17),与上覆南迳组碎斑熔岩SHRIMP锆石U-Pb年龄(443.6±5.4Ma;巫建华等, 2012)在误差范围内一致,属同期火山活动的产物,说明黄竹洞组变质岩系与南迳组的时代连续,进一步证明两者为整合接触关系。

5.3 龙头寨群具有活动大陆边缘的岩石组合特征

龙头寨群半坑组、古亭组和黄竹洞组浅变质岩系主要为一套深灰色、灰色、灰绿色细粒长石石英砂岩、绢云板岩、粉砂质板岩或千枚岩夹碳酸盐岩,上部夹含凸镜状砾岩的沉积组合,由于以前未发现火山岩,似乎显示出被动大陆边缘的岩石组合特征。随着赣南全南-粤北始兴一带厚度超过500m的南迳组碎斑熔岩、英安岩、安山岩(巫建华等, 2012; 伍静等, 2014; 丁辉等, 2017)的并入,龙头寨群成为厚度超过800m的变质火山岩-沉积岩组合,显示出活动大陆边缘的岩石组合特征。特别是赣南-粤北南迳组英安岩、安山岩(丁辉, 2016; 劳玉军, 2018)和同期花岗岩(马树松等, 2019)具有岛弧岩浆岩地球化学特征的确认,更有利地证实南迳组火山岩和同期花岗岩属活动大陆边缘的产物。本文确认龙头寨群黄竹洞组流纹岩与南迳组火山岩属同期火山作用的产物,进一步证实龙头寨群具有活动大陆边缘的岩石组合特征。

5.4 钦杭结合带中段属加里东期洋壳俯冲-碰撞造山带

钦杭结合带加里东期是否存在洋盆,一直是地质界关注和争论的焦点,并引发了钦杭结合带加里东期是俯冲-碰撞造山带还是板内造山造山带的争论。尽管很多地质工作者从沉积地层、岩浆岩、变质岩及构造方面提供了加里东期俯冲-碰撞造山的地质证据(Guo et al., 1989; 李曰俊等, 1993; 刘宝珺等, 1993; 殷鸿福等, 1999; 曾勇等, 1999; 吴浩若, 2000; 郭令智, 2001; 尹福光等, 2001; 马瑞士, 2006; 彭松柏等, 2006; 刘运黎等, 2009; 潘桂棠等, 2009; 许效松等, 2012; Zhao and Cawood, 2012; 覃小锋等, 2013, 2015; 陈相艳等, 2015; Zhang et al., 2015),但因缺少与区域上广泛分布的加里东期花岗岩(楼法生等, 2005; 伍光英等, 2008; Li et al., 2010; Wang et al., 2011, 2013; Zhang et al., 2012; 王磊等, 2013)同期的岛弧火山岩或与洋壳俯冲相关的早古生代蛇绿岩证据,不具备洋-陆俯冲活动大陆边缘特征,有学者认为其属板内造山(周新民, 2003; 王德滋, 2004; 舒良树, 2006; 柏道远等, 2007; 徐夕生, 2008; 张爱梅等, 2010; 郝义等, 2010; Wang et al., 2010; Shu et al., 2011; Wang et al., 2011, 2012; Xu et al., 2011; 陈旭等, 2012; 杜远生和徐亚军, 2012)。

综合前人研究成果,钦杭结合带西南段晚奥陶世-早志留世应处于活动大陆边缘环境,存在俯冲-碰撞造山作用。蛇绿岩或岛弧火山岩作为判别洋壳俯冲-碰撞造山作用的关键性证据,云开隆起地区西北缘桂东南糯垌蛇绿岩,大爽一带形成于俯冲岛弧的弧前构造环境下的高镁-镁质玄武安山岩-安山岩(430~441Ma)(彭松柏等, 1999, 2016a, b)和俯冲-碰撞构造环境下具TTG特征的深熔花岗杂岩(443Ma)(彭松柏等, 2006; 覃小锋等, 2013)等,证实钦杭结合带西南段存在加里东期洋壳俯冲-碰撞造山作用。另一方面,在钦杭结合带东段,江西横峰、金溪出露早古生代花岗岩,由于缺少相匹配的同期火山岩系,则不具备洋陆俯冲活动大陆边缘特征(孙涛, 2006; 舒良树等, 2008),江西弋阳、浙江龙游、闽中等地虽然发现了经历早古生代高压高温变质麻粒岩(于津海等, 2014)和高压变质石榴石角闪岩(周国庆等, 1989; 邢光福等, 2013; Zhang et al., 2015; 陈相艳等, 2015),但高压高温变质麻粒岩和高压榴辉岩的出现并不能说明洋壳一定存在,高压高温变质麻粒岩和高压榴辉岩不限出现于俯冲造山带,且与大洋板块俯冲有关的造山带往往发育双变质带,特别是低温高压变质作用。

钦杭结合带中段虽然没有发现蛇绿岩,但存在与洋壳俯冲有关的岛弧火山岩和花岗岩。如,覃小锋等(2015)在广西桂东鹰扬关地区发现识别的早古生代志留世(415Ma)与俯冲-消减作用有关的细碧岩、石英角斑岩及相关火山碎屑岩;易立文等(2014)在粤北河口-上洞发现的早古生代晚奥陶世钙碱性英安岩(449Ma);粤北始兴-赣南全南发现的早古生代英安岩(439Ma)、安山岩(442Ma)(丁辉, 2016; 劳玉军, 2017)、花岗岩(442Ma)(马树松等, 2019);粤北一带和猫儿山-越岭高镁玄武岩-安山岩-英安岩和辉长岩(Yao et al., 2012; Wang et al., 2013);湘东板杉铺埃达克质花岗闪长岩(423Ma)(许德如等, 2006);永州-衡阳-新余发现的TTG-GG组合(何卫红等, 2014; 邓晋福等, 2016; 许华等, 2016)等均表现与活动大陆边缘的岛弧岩浆特征,揭示钦杭结合带中段存在加里东期洋壳俯冲。本文研究的钦杭结合带中段粤北始兴一带龙头寨群具有活动大陆边缘的沉积组合特征,进一步说明晚奥陶世-早志留世早期的洋盆已延伸到了钦杭结合带中段。可见,在南华纪-早古生代Rodinia大陆裂解背景下,扬子与华夏板块可能沿钦杭结合带自南西向北东方向呈剪刀叉式裂解,至少在晚奥陶世晚期-早志留世早期钦杭结合带西南段和中段已裂解形成洋盆,中-晚志留世西南段和中段发生洋壳俯冲,晚志留世末洋盆闭合形成加里东造山带。

6 结论

综上所述,可得出以下结论:

(1) 龙头寨群黄竹洞组顶部流纹岩夹层2个样品的SHRIMP锆石206Pb/238U年龄分别为438.7±2.1Ma(n=15,MSWD=1.6)和436.2±2.1Ma(n=16,MSWD=1.2),指示流纹岩的锆石U-Pb年龄为439~436Ma,地质时代属晚奥陶世末期-早志留世早期;

(2) 黄竹洞组顶部流纹岩的锆石U-Pb年龄与上覆南迳组安山岩、英安岩、流纹岩和碎斑熔岩的锆石U-Pb年龄在误差范围内一致,指示它们是同期火山活动的产物,为黄竹洞组和南迳组呈整合接触提供了年龄证据。

(3) 龙头寨群黄竹洞组顶部流纹岩及南迳组火山岩系晚奥陶世末期-早志留世早期的地质时代厘定,为龙头寨群属含有大量火山岩的活动大陆边缘沉积组合提供了依据,支持钦杭结合带中段加里东期属俯冲-碰撞造山带。

致谢      东华理工大学2016级资源勘查专业本科生黄志成和涂传辉参加了野外地层剖面测制工作;北京离子探针中心包泽民博士、孙会一博士在锆石阴极发光照相和锆石U-Pb同位素测试过程中给予了指导和帮助;匿名审稿人提出了宝贵意见;在此一并致以诚挚的感谢。

参考文献
An TY. 1987. Early Paleozoic Conodonts of Southern China. Beijing: Peking University Press, 1-238 (in Chinese)
Bai DY, Zhou L, Wang XH, Zhang XY and Ma TQ. 2007. Geochemistry of Nanhuan-Cambrian sandstones in southeastern Hunan, and its constraints on Neoproterozoic-Early Paleozoic tectonic setting of South China. Acta Geologica Sinica, 81(6): 755-771 (in Chinese with English abstract)
Bureau of Geology and Mineral Resources of Guangdong Province. 1996. Stratigraphy (Lithostratic) of Guangdong Province. Wuhan: China University of Geosciences Press (in Chinese)
Bureau of Geology and Mineral Resources of Jiangxi Province. 1997. Stratigraphy (Lithostratic) of Jiangxi Province. Wuhan: China University of Geosciences Press (in Chinese)
Chen X, Zhang YD, Fan JX, Tang L and Sun HQ. 2012. Onset of the Kwangsian Orogeny as evidenced by biofacies and lithofacies. Science China (Earth Sciences), 55(10): 1592-1600
Chen XY, Tong LX, Zhang CL, Zhu QB and Li YN. 2015. Retrograde garnet amphibolite from eclogite of the Zhejiang Longyou area: New evidence of the Caledonian orogenic event in the Cathaysia block. Science Bulletin, 60(13): 1207-1217 (in Chinese)
Chen YC, Chen ZH, Zeng ZL, Zhao Z, Zhao B, Wang DH, Zhang YZ, Li JG, Zhou XP and Li JD. 2013. Research on the site selection of Nanling Scientific Drilling-1. Geology in China, 40(3): 659-670 (in Chinese with English abstract)
Deng JF, Feng YF, Di YJ, Liu C, Xiao QH, Su SG, Zhao GC, Meng F and Xiong L. 2016. The intrusive spatial temporal evolutional framework in the Southeast China. Geological Review, 62(1): 3-16 (in Chinese with English abstract)
Ding H. 2016. Petrogenesis of andesite from Nanjing basin in southern Jiangxi: Constraints from chronology and geochemistry. Master Degree Thesis. Nanchang: East China University of Technology (in Chinese with English summary)
Ding H, Wu JH, Lao YJ and Liu S. 2017. The establishment of the Nanjing Formation in Longtouzhai Group in eastern Nanling Region and the determination of its age. Geological Bulletin of China, 36(9): 1645-1655 (in Chinese with English abstract)
Du YS and Xu YJ. 2012. A preliminary study on Caledonian event in South China. Geological Science and Technology Information, 31(5): 43-49 (in Chinese with English abstract)
Fan JX, Li C and Hou XD. 2018. The international chronostratigraphic chart (Version 2018/08). Journal of Stratigraphy, 42(4): 365-370 (in Chinese with English abstract)
Guo LZ, Shi YS, Lu HF, Ma RS, Dong HG and Yang SF. 1989. The pre-Devonian tectonic patterns and evolution of South China. Journal of Southeast Asian Earth Sciences, 3(1-4): 87-93
Gan XC, Li HM, Sun DZ, Jin WS and Zhao FQ. 1995. A geological study on Early Proterozoic granitic rocks, southern Zhejiang. Acta Petrologica et Mineralogica, 14(1): 1-8 (in Chinese with English abstract)
Gan XC, Li XH, Zhao FQ and Huang HB. 1996. Zircon U-Pb and Sm-Nd isochron ages of spilite from Danzhou Group, Guangxi Zhuang Autonomous Region. Geochimica, 25(3): 270-276 (in Chinese with English abstract)
Guo LZ. 2001. The Plate Tectonics of South China. Beijing: Geological Publishing House, 1-941 (in Chinese)
Hao Y, Li SZ, Jin C, Dai LM, Liu B, Liu LP and Liu X. 2010. Caledonian structural characteristics and mechanism in Hunan-Jiangxi-Guangxi provinces. Geotectonica et Metallogenia, 34(2): 166-180 (in Chinese with English abstract)
He WH, Tang TT, Le ML, Deng JF, Pan GT, Xing GF, Luo MS, Xu YD, Wei Y, Zhang ZX, Xiao YF and Zhang KX. 2014. Sedimentary and tectonic evolution of Nanhuan-Permian in South China. Earth Science, 39(8): 929-953 (in Chinese with English abstract)
Hu XJ, Xu JK, Tong CX and Chen CH. 1991. Geological characteristics and genesis of Palaeoproterozoic granites from Longquan, Southwest Zhejiang. Mineralogy and Petrology, 11(3): 29-39 (in Chinese with English abstract)
Lao YJ. 2017. The geological and geochemical characteristics for Caledonian dacite in Nanjing basin, southern Jiangxi Province, and its geological implications. Master Degree Thesis. Nanchang: East China University of Technology (in Chinese with English summary)
Li XH, Zhou GQ and Zhao JX. 1994. SHRIMP ion microprobe zircon U-Pb age of the NE Jiangxi ophiolite and its tectonic implications. Geochimica, 23(2): 125-131 (in Chinese with English abstract)
Li XH. 1998. The Jinning Orogeny in Southeast China: Geochronological and geochemical constraints. Acta Geophysica Sinica, 41(Suppl.1): 184-194 (in Chinese with English abstract)
Li XH, Li WX, Li ZX and Liu Y. 2008a. 850~790Ma bimodal volcanic and intrusive rocks in northern Zhejiang, South China: A major episode of continental rift magmatism during the breakup of Rodinia. Lithos, 102(1-2): 341-357
Li XH, Li WX, Li ZX and Lou FS. 2008b. Obduction-type granites within the NE Jiangxi ophiolite: Implications for the final amalgamation between the Yangtze and Cathaysia blocks. Gondwana Research, 13(3): 288-301
Li XH, Li WX, Li ZX, Lo CH, Wang J, Ye MF and Yang YH. 2009. Amalgamation between the Yangtze and Cathaysia blocks in South China: Constraints from SHRIMP U-Pb zircon ages, geochemistry and Nd-Hf isotopes of the Shuangxiwu volcanic rocks. Precambrian Research, 174(1-2): 117-128
Li YJ, Kuang GD, Wu HR and Xian XY. 1993. Qinzhou foreland basin: New understandings about the Qinzhou residual trough. Guangxi Geology, 6(4): 13-18 (in Chinese with English abstract)
Li ZX, Wartho JA, Occhipinti S, Zhang CL, Li XH, Wang J and Bao CM. 2007. Early history of the eastern Sibao Orogen (South China) during the assembly of Rodinia: New mica 40Ar/39Ar dating and SHRIMP U-Pb detrital zircon provenance constraints. Precambrian Research, 159(1-2): 79-94
Li ZX, Bogdanova SV, Collins AS, Davidson A, De Waele B, Ernst RE, Fitzsmons ICW, Fuck RA, Gladkochub DP, Jacbs J, Karlstrom KE, Lu S, Natapov LM, Pease V, Pisarevsky SA, Thrane K and Vernikovsky V. 2008c. Assembly, configuration, and break-up history of Rodinia: A synthesis. Precambrian Research, 160(1-2): 179-210
Li ZX, Li XH, Wartho JA, Clark C, Li WX, Zhang CL and Bao C. 2010. Magmatic and metamorphic events during the Early Paleozoic Wuyi-Yunkai orogeny, southeastern South China: New age constraints and pressure-temperature conditions. Geological Society of America Bulletin, 122(5-6): 772-793
Liang J, Zhou YZ and Li HZ. 2015. Tectonic evolution of the juncture between Yangtze Craton and Cathaysian Block: Its significance for mineralization of porphyry copper deposits. Earth Science Frontiers, 22(2): 144-159 (in Chinese with English abstract)
Liu BJ, Xu XS, Pan XN Huang HQ and Xu Q. 1993. Paleocontinental Sediments, Crust Evolution and Ore Deposits of South China. Beijing: Science Press, 120-134 (in Chinese)
Liu Q. 2013. Geochemistry and tectonic significance of Paleoproterozoic high-temperature and low-temperature granites in southwestern Zhejiang Province, northeastern Cathaysia Block. Master Degree Thesis. Nanjing: Nanjing University (in Chinese with English summary)
Liu R, Zhou HW, Zhang L, Zhong ZQ, Zeng W, Xiang H, Jin S, Lü XQ and Li CZ. 2009. Paleoproterozoic reworking of ancient crust in the Cathaysia Block, South China: Evidence from zircon trace elements, U-Pb and Lu-Hf isotopes. Chinese Science Bulletin, 54(9): 1543-1554
Liu S, Wu JH, Ding H and Huang MH. 2018. Zircon U-Pb age of the Caledonian volcanic rocks in Nanjing basin of southern Jiangxi Province and its geological significance. Geological Bulletin of China, 37(10): 1905-1919 (in Chinese with English abstract)
Liu YL, Zhou XJ, Liao ZT and Yang F. 2009. Relative blocks and Convergence process during the Caledonian Movement in South China. Petroleum Geology & Experiment, 31(1): 19-25 (in Chinese with English abstract)
Lou FS, Shen WZ, Wang DZ, Shu LS, Wu FJ, Zhang FR and Yu JH. 2005. Zircon U-Pb isotopic chronology of the Wugongshan dome compound granite in Jiangxi Province. Acta Geologica Sinica, 79(5): 636-644 (in Chinese with English abstract)
Ma RS. 2006. New thought about the tectonic evolution of the South China: With discussion on several problems of the Cathaysian old land. Geological Journal of China Universities, 12(4): 448-456 (in Chinese with English abstract)
Ma SS, Liu S, Huang MH, Wu JH and Guo HF. 2019. U-Pb geochronology, geochimistry and genesis of Miaoyun Pluton in South Jiangxi Province. Science Technology and Engineering, 19(26): 55-67 (in Chinese with English abstract)
Nan Y. 1995. Lithostratigraphic division of the Ordovician in Guangdong. Guangdong Geology, 10(1): 17-22 (in Chinese with English abstract)
Pan GT, Xiao QH, Lu SN, Deng JF, Feng YM, Zhang KX, Zhang ZY, Wang FG, Xing GF, Hao GJ and Feng YF. 2009. Subdivision of tectonic units in China. Geology in China, 36(1): 1-28 (in Chinese with English abstract)
Peng SB, Zhan MG, Zhang YM, Fu JM and Peng SM. 1999. The discovery of Ophiolitic mélanges and its significance in Yunkai area, western Guangdong. Geology and Mineral Resources of South China, (1): 24-25 (in Chinese with English abstract)
Peng SB, Jin ZM, Liu YH, Fu JM, He LQ, Cai MH and Wang YB. 2006. Petrochemistry, chronology and tectonic setting of strong peraluminous anatectic granitoids in Yunkai Orogenic Belt, Western Guangdong Province, China. Earth Science, 31(1): 110-120 (in Chinese with English abstract)
Peng SB, Liu SF, Lin MS, Wu CF and Han QS. 2016a. Early Paleozoic Subduction in Cathaysia (Ⅰ): New evidence from Nuodong ophiolite. Earth Science, 41(5): 765-778 (in Chinese with English abstract)
Peng SB, Liu SF, Lin MS, Wu CF and Han QS. 2016b. Early Paleozoic Subduction in Cathaysia (Ⅱ): New evidence from the Dashuang high magnesian-magnesian andesite. Earth Science, 41(6): 931-947 (in Chinese with English abstract)
Qin XF, Wang ZQ, Hu GA, Cao J and Feng ZH. 2013. Geochronology and geochemistry of Hudong gneissic composite pluton in the junction of Guangdong and Guangxi provinces: Implications for Early Paleozoic tectono-magmatism along the northern margin of Yunkai massif. Acta Petrologica Sinica, 29(9): 3115-3130 (in Chinese with English abstract)
Qin XF, Wang ZQ, Wang T, Xiong B, Feng ZH, Yang W, Zhu AH, Song J and Huang J. 2015. The reconfirmation of age and tectonic setting of the volcanic rocks of Yingyangguan group in the eastern Guangxi: Constraints on the structural pattern of the southwestern segment of Qinzhou-Hangzhou joint belt. Acta Geoscientia Sinica, 36(3): 282-291 (in Chinese with English abstract)
Rubatto D. 2002. Zircon trace element geochemistry: Partitioning with garnet and the link between U-Pb ages and metamorphism. Chemical Geology, 184(1-2): 123-138
Shu LS. 2006. Predevonian tectonic evolution of South China: From Cathaysian Block to Caledonian Period folded orogenic belt. Geological Journal of China Universities, 12(4): 418-431 (in Chinese with English abstract)
Shu LS, Yu JH, Jia D, Wang B, Shen WZ and Zhang YQ. 2008. Early Paleozoic orogenic belt in the eastern segment of South China. Geological Bulletin of China, 27(10): 1581-1593 (in Chinese with English abstract)
Shu LS, Faure M, Yu JH and Jahn BM. 2011. Geochronological and geochemical features of the Cathaysia block (South China): New evidence for the Neoproterozoic breakup of Rodinia. Precambrian Research, 187(3-4): 263-276
Song B, Zhang YH, Wan YS and Jian P. 2002. Mount making and procedure of SHRIMP dating. Geological Review, 48(Suppl.): 26-30 (in Chinese with English abstract)
Sun T. 2006. A new map showing the distribution of granites in South China and its explanatory notes. Geological Bulletin of China, 25(3): 332-335 (in Chinese with English abstract)
Wang DZ. 2004. The study of granitic rocks in South China: Looking back and forward. Geological Journal of China Universities, 10(3): 305-314 (in Chinese with English abstract)
Wang HN and Zhou LY. 2006. A further understanding in geological structure of South China. Geological Journal of China Universities, 12(4): 457-465 (in Chinese with English abstract)
Wang L, Long WG and Zhou D. 2013. Zircon LA-ICP-MS U-Pb age of Caledonian granites from Precambrian basement in Yunkai area and its geological implications. Geology in China, 40(4): 1016-1029 (in Chinese with English abstract)
Wang Q, Wyman DA, Li ZX, Bao ZW, Zhao ZH, Wang YX, Jian P, Yang YH and Chen LL. 2010. Petrology, geochronology and geochemistry of ca. 780Ma A-type granites in South China: Petrogenesis and implications for crustal growth during the breakup of the supercontinent Rodinia. Precambrian Research, 178(1-4): 185-208
Wang YJ, Zhang AM, Fan WM, Zhao GC, Zhang GW, Zhang YZ, Zhang FF and Li SZ. 2011. Kwangsian crustal anatexis within the eastern South China Block: Geochemical, zircon U-Pb geochronological and Hf isotopic fingerprints from the gneissoid granites of Wugong and Wuyi-Yunkai Domains. Lithos, 127(1-2): 239-260
Wang YJ, Wu CM, Zhang AM, Fan WM, Zhang YH, Zhang YZ, Peng TP and Yin CQ. 2012. Kwangsian and Indosinian reworking of the eastern South China Block: Constraints on zircon U-Pb geochronology and metamorphism of amphibolites and granulite. Lithos, 150: 227-242
Wang YJ, Fan WM, Zhang GW and Zhang YH. 2013. Phanerozoic tectonics of the South China Block: Key observations and controversies. Gondwana Research, 23(4): 1273-1305
Williams IS and Claesson S. 1987. Isotopic evidence for the Precambrian provenance and Caledonian metamorphism of high grade paragneisses from the Seve Nappes, Scandinavian Caledonides: Ⅱ. Ion microprobe zircon U-Th-Pb. Contributions to Mineralogy and Petrology, 97(2): 205-217 DOI:10.1007/BF00371239
Wu GY, Ma TQ, Feng YF, Yan QR, Liu FG and Bai DY. 2008. Geological and geochemical characteristics and genesis of the Caledonian Wanyangshan granite in the Nanling Mountains, South China. Geology in China, 35(4): 608-617 (in Chinese with English abstract)
Wu HR. 2000. A discussion on the tectonic palaeogeography related to the Caledonian movement in Guangxi. Journal of Palaeogeography, 2(1): 70-76 (in Chinese with English abstract)
Wu J, Wang GQ, Liang HY, Huang WT, Lin SP, Zou YQ, Sun WD and Wang YW. 2014. Indentification of Caledonian volcanic rock in the Dabaoshan ore-field in northern Guangdong Province and its geological implication. Acta Petrologica Sinica, 30(4): 1145-1154 (in Chinese with English abstract)
Wu JH, Xiang YX, Huang GR, Liu XD and Liu S. 2012. Caledonian zircon SHRIMP U-Pb age of porphyroclastic lava in northern Guangdong Province and its geological significance. Geological Journal of China Universities, 18(4): 601-608 (in Chinese with English abstract)
Wu YB and Zheng YF. 2004. Genesis of zircon and its constraints on interpretation of U-Pb age. Chinese Science Bulletin, 49(15): 1554-1569
Xing FM, Xu X, Chen JF, Zhou TX and Foland KA. 1992. Sm-Nd isotopic age of Proterozoic ophiolites in northeastern Jiangxi and its geological significance. Acta Petrologica et Mineralogica, 11(2): 120-124 (in Chinese with English abstract)
Xing GF, Jiang Y, Chen ZH, Zhou XH, Yuan Q and Duan Z. 2013. Caledonian garnet amphibolite was first discovered in Qinhang junction belt. Resource Survey and Environment, 34(4): 208 (in Chinese)
Xu DR, Chen GH, Xia B, Li PC and He ZL. 2006. The Caledonian Adakite-like Granodiorites in Banshanpu area, eastern Hunan Province, South China: Petrogenesis and geological significance. Geological Journal of China Universities, 12(4): 507-521 (in Chinese with English abstract)
Xu H, Ni ZX, Huang BC, Han SP, Wang CY and Chen Y. 2016. Determination of Early Paleozoic TTG intrusive rocks at the southeast edge of Dayao Mountain, Guangxi. Geology in China, 43(3): 780-796 (in Chinese with English abstract)
Xu XB, Zhang YQ, Shu LS and Jia D. 2011. La-ICP-MS U-Pb and 40Ar/39Ar geochronology of the sheared metamorphic rocks in the Wuyishan: Constraints on the timing of Early Paleozoic and Early Mesozoic tectono-thermal events in SE China. Tectonophysics, 501(1-4): 71-86
Xu XS. 2008. Several problems worthy to be noticed in the research of granites and volcanic rocks in SE China. Geological Journal of China Universities, 14(3): 283-294 (in Chinese with English abstract)
Xu XS, Liu W, Men YP and Zhang HQ. 2012. Probe into the tectonic nature of Neoproterozoic southern Hunan-northern Guangxi marine basin. Acta Geologica Sinica, 86(12): 1890-1904 (in Chinese with English abstract)
Yan DP, Zhou MF, Wang CY and Xia B. 2006. Structural and geochronological constraints on the tectonic evolution of the Dulong-Song Chay tectonic dome in Yunnan Province, SW China. Journal of Asian Earth Sciences, 28(4-6): 332-353
Yang MG and Mei YW. 1997. Characteristics of geology and metallization in the Qinzhou-Hangzhou paleoplate juncture. Geology and Mineral Resources of South China, (3): 52-59 (in Chinese with English abstract)
Yang SF, Chen HL, Wu GH and Dong CW. 1995. Discovery of Early Paleozoic island-arc volcanic rock in northern part of Fujian Province and the significance for tectonic study. Scientia Geologica Sinica, 30(2): 105-116 (in Chinese with English abstract)
Yao WH, Li ZX, Li WX, Wang XC, Li XH and Yang JH. 2012. Post-kinematic lithospheric delamination of the Wuyi-Yunkai orogen in South China: Evidence from ca. 435Ma high-Mg basalts. Lithos, 154: 115-129
Yi LW, Ma CQ, Wang LX, Lai ZX, Li XY, Yang YN, Wu F and Hu YR. 2014. Discovery of Late Ordovician subvolcanic rocks in South China: Existence of subduction-related dacite from Early Paleozoic?. Earth Science, 39(6): 637-653 (in Chinese with English abstract)
Yin FG, Xu XS, Wan F and Chen M. 2001. The sedimentary response to the evolutionary process of Caledonian foreland basin system in South China. Acta Geoscientia Sinica, 22(5): 425-428 (in Chinese with English abstract)
Yin HF, Wu SB, Du YS and Peng YQ. 1999. South China defined as part of Tethyan archipelagic ocean system. Earth Science, 24(1): 1-12 (in Chinese with English abstract)
Yu JH, O'Reilly SY, Wang LJ, Griffin WL, Zhang M, Wang RC, Jiang SY and Shu LS. 2008. Where was South China in the Rodinia supercontinent? Evidence from U-Pb geochronology and Hf isotopes of detrital zircons. Precambrian Research, 164(1-2): 1-15
Yu JH, Wang LJ, O'Reilly SY, Shu LS and Sun T. 2009. Paleoproterozoic basement beneath the southern Jiangxi Province: Evidence from U-Pb ages and Lu-Hf isotopes in zircons from the Doushui lamprophyre. Chinese Science Bulletin, 54(9): 1555-1563 DOI:10.1007/s11434-009-0095-5
Yu JH, Lou FS, Wang LJ, Shen LW, Zhou XY, Zhang CH and Huang ZZ. 2014. The geological significance of a Paleozoic mafic granulite found in the Yiyang area of northeastern Jiangxi Province. Chinese Science Bulletin, 59(35): 3508-3516 (in Chinese with English abstract)
Zeng CY, Zhou YZ, Zheng Y, Yu PP, Niu J and Liang J. 2015. Plate tectonism of Qinzhou Bay-Hangzhou Bay juncture orogenic belt (South China) before Mesozoic tectonic transition event. Earth Science Frontiers, 22(2): 54-63 (in Chinese with English abstract)
Zeng Y and Yang MG. 1999. Central Jiangxi collision mélange zone. Regional Geology of China, 18(1): 17-22 (in Chinese with English abstract)
Zhao GC and Cawood PA. 2012. Precambrian geology of China. Precambrian Research, 222-223: 13-54
Zhang AM, Wang YJ, Fan WM, Zhang FF and Zhang YZ. 2010. LA-ICPMS Zircon U-Pb Geochronology and Hf isotopic compositions of Caledonian granites from the Qingliu area, Southwest Fujian. Geotectonica et Metallogenia, 34(3): 408-418 (in Chinese with English abstract)
Zhang FF, Wang YJ, Zhang AM, Fan WM, Zhang YZ and Zi JW. 2012. Geochronological and geochemical constraints on the petrogenesis of Middle Paleozoic (Kwangsian) massive granites in the eastern South China Block. Lithos, 150: 188-208
Zhang FR, Shu LS, Wang DZ, Yu JH and Shen WZ. 2009. Discussions on the tectonic setting of Caledonian granitoids in the eastern segment of South China. Earth Science Frontiers, 16(1): 248-260 (in Chinese with English abstract)
Zhang GW, Guo AL, Wang YJ, Li SZ, Dong YP, Liu SF, He DF, Cheng SY, Lu RK and Yao AP. 2013. Tectonics of South China continent and its implications. Science China (Earth Sciences), 56(11): 1804-1828 DOI:10.1007/s11430-013-4679-1
Zhang Q, Jiang YH, Wang GC, Liu Z, Ni CY and Qing L. 2015. Origin of Silurian Gabbros and I-type granites in central Fujian, SE China: Implications for the evolution of the Early Paleozoic orogen of South China. Lithos, 216-217: 285-297
Zhou GQ, Shu LS and Wu HL. 1989. The high temperature and pressure metamorphic rocks related to ophiolite in northeastern Jiangxi and a discussion on the superimposition metamorphism. Acta Petrologica et Mineralogica, 8(3): 220-231 (in Chinese with English abstract)
Zhou XM. 2003. My thinking about granite geneses of South China. Geological Journal of China Universities, 9(4): 556-565 (in Chinese with English abstract)
Zhou YZ, Zeng CY, Li HZ, An YF, Liang J, Lv WC, Yang ZJ, He JG and Shen WJ. 2012. Geological evolution and ore-prospecting targets in southern segment of Qinzhou Bay-Hangzhou Bay juncture orogenic belt, southern China. Geological Bulletin of China, 31(2-3): 486-491
安太庠. 1987. 中国南部早古生代牙形石. 北京: 北京大学出版社, 1-238.
柏道远, 周亮, 王先辉, 张晓阳, 马铁球. 2007. 湘东南南华系-寒武系砂岩地球化学特征及对华南新元古代-早古生代构造背景的制约. 地质学报, 81(6): 755-771.
陈旭, 张元动, 樊隽轩, 唐兰, 孙海清. 2012. 广西运动的进程: 来自生物相和岩相带的证据. 中国科学(地球科学), 42(11): 1617-1626.
陈相艳, 仝来喜, 张传林, 朱清波, 李亚楠. 2015. 浙江龙游石榴石角闪岩(退变榴辉岩): 华夏加里东期碰撞造山事件的新证据. 科学通报, 60(13): 1207-1217.
陈毓川, 陈郑辉, 曾载淋, 赵正, 赵斌, 王登红, 张永忠, 李建国, 周新鹏, 李江东. 2013. 南岭科学钻探第一孔选址研究. 中国地质, 40(3): 659-670.
邓晋福, 冯艳芳, 狄永军, 刘翠, 肖庆辉, 苏尚国, 赵国春, 孟斐, 熊龙. 2016. 华南地区侵入岩时空演化框架. 地质论评, 62(1): 3-16.
丁辉. 2016. 江西南部南迳盆地安山岩年代学、地球化学特征及岩石成因. 硕士学位论文. 南昌: 东华理工大学.
丁辉, 巫建华, 劳玉军, 刘帅. 2017. 南岭东段龙头寨群南迳组的建立及其地质时代厘定. 地质通报, 36(9): 1645-1655.
杜远生, 徐亚军. 2012. 华南加里东运动初探. 地质科技情报, 31(5): 43-49.
樊隽轩, 李超, 侯旭东. 2018. 《国际年代地层表》(2018/08版). 地层学杂志, 42(4): 365-370.
甘晓春, 李惠民, 孙大中, 金文山, 赵凤清. 1995. 浙西南早元古代花岗质岩石的年代. 岩石矿物学杂志, 14(1): 1-8.
甘晓春, 李献华, 赵风清, 黄海波. 1996. 广西龙胜丹洲群细碧岩锆石U-Pb及Sm-Nd等时线年龄. 地球化学, 25(3): 270-276.
广东省地质矿产局. 1996. 广东省岩石地层. 武汉: 中国地质大学出版社.
郭令智. 2001. 华南板块构造. 北京: 地质出版社, 1-941.
郝义, 李三忠, 金宠, 戴黎明, 刘博, 刘丽萍, 刘鑫. 2010. 湘赣桂地区加里东期构造变形特征及成因分析. 大地构造与成矿学, 34(2): 166-180.
何卫红, 唐婷婷, 乐明亮, 邓晋福, 潘桂棠, 邢光福, 骆满生, 徐亚东, 韦一, 张宗言, 肖异凡, 张克信. 2014. 华南南华纪-二叠纪沉积大地构造演化. 地球科学, 39(8): 929-953.
胡雄健, 许金坤, 童朝旭, 陈程华. 1991. 浙西南龙泉地区早元古代花岗岩类的地质特征及其成因探讨. 矿物岩石, 11(3): 29-39.
江西省地质矿产厅. 1997. 江西省岩石地层. 武汉: 中国地质大学出版社.
劳玉军. 2017. 赣南南迳盆地加里东期英安岩地质、地球化学特征及地质意义. 硕士学位论文. 南昌: 东华理工大学
李献华, 周国庆, 赵建新. 1994. 赣东北蛇绿岩的离子探针锆石U-Pb年龄及其构造意义. 地球化学, 23(2): 125-131.
李献华. 1998. 华南晋宁期造山运动——地质年代学和地球化学制约. 地球物理学报, 41(增1): 184-194.
李曰俊, 邝国敦, 吴浩若, 咸向阳. 1993. 钦州前陆盆地——关于钦州残余海槽的新认识. 广西地质, 6(4): 13-18.
梁锦, 周永章, 李红中. 2015. 扬子-华夏构造结合带的演化阶段及对斑岩铜矿形成的控制机制. 地学前缘, 22(2): 144-159.
刘宝珺, 许效松, 潘杏南, 黄慧琼, 徐强. 1993. 中国南方古大陆沉积地壳演化与成矿. 北京: 科学出版社, 120-134.
刘潜. 2013. 浙西南古元古代高温和低温花岗岩的地球化学特征及地质意义. 硕士学位论文. 南京: 南京大学
刘锐, 周汉文, 张利, 钟增球, 曾雯, 向华, 靳松, 吕新前, 李春忠. 2009. 华夏地块古元古代陆壳再造: 锆石微量元素与U-Pb和Lu-Hf同位素证据. 科学通报, 54(7): 906-917.
刘帅, 巫建华, 丁辉, 黄美化. 2018. 赣南南迳盆地加里东期火山岩锆石U-Pb年龄及其地质意义. 地质通报, 37(10): 1905-1919.
刘运黎, 周小进, 廖宗庭, 杨帆. 2009. 华南加里东期相关地块及其汇聚过程探讨. 石油实验地质, 31(1): 19-25.
楼法生, 沈渭洲, 王德滋, 舒良树, 吴富江, 张芳荣, 于津海. 2005. 江西武功山穹隆复式花岗岩的锆石U-Pb年代学研究. 地质学报, 79(5): 636-644.
马瑞士. 2006. 华南构造演化新思考——兼论"华夏古陆"说中的几个问题. 高校地质学报, 12(4): 448-456.
马树松, 刘帅, 黄美化, 巫建华, 郭恒飞. 2019. 赣南苗云岩体U-Pb年代学、地球化学特征及其成因. 科学技术与工程, 19(26): 55-67.
南颐. 1995. 广东奥陶纪岩石地层划分. 广东地质, 10(1): 17-22.
潘桂棠, 肖庆辉, 陆松年, 邓晋福, 冯益民, 张克信, 张智勇, 王方国, 邢光福, 郝国杰, 冯艳芳. 2009. 中国大地构造单元划分. 中国地质, 36(1): 1-28.
彭松柏, 战明国, 张业明, 付建明, 彭少梅. 1999. 云开地区蛇绿混杂岩的发现及意义. 华南地质与矿产, (1): 24-25.
彭松柏, 金振民, 刘云华, 付建明, 何龙清, 蔡明海, 王彦斌. 2006. 云开造山带强过铝深熔花岗岩地球化学、年代学及构造背景. 地球科学, 31(1): 110-120.
彭松柏, 刘松峰, 林木森, 吴长峰, 韩庆森. 2016a. 华夏早古生代俯冲作用(Ⅰ): 来自糯垌蛇绿岩的新证据. 地球科学, 41(5): 765-778.
彭松柏, 刘松峰, 林木森, 吴长峰, 韩庆森. 2016b. 华夏早古生代俯冲作用(Ⅱ): 大爽高镁-镁质安山岩新证据. 地球科学, 41(6): 931-947.
覃小锋, 王宗起, 胡贵昂, 曹洁, 冯佐海. 2013. 两广交界地区壶垌片麻状复式岩体的年代学和地球化学: 对云开地块北缘早古生代构造-岩浆作用的启示. 岩石学报, 29(9): 3115-3130.
覃小锋, 王宗起, 王涛, 熊彬, 冯佐海, 杨文, 朱安汉, 宋炯, 黄杰. 2015. 桂东鹰扬关群火山岩时代和构造环境的重新厘定: 对钦杭结合带西南段构造格局的制约. 地球学报, 36(3): 282-291.
舒良树. 2006. 华南前泥盆纪构造演化: 从华夏地块到加里东期造山带. 高校地质学报, 12(4): 418-431.
舒良树, 于津海, 贾东, 王博, 沈渭洲, 张岳桥. 2008. 华南东段早古生代造山带研究. 地质通报, 27(10): 1581-1593.
宋彪, 张玉海, 万渝生, 简平. 2002. 锆石SHRIMP样品靶制作、年龄测定及有关现象讨论. 地质论评, 48(增): 26-30.
孙涛. 2006. 新编华南花岗岩分布图及其说明. 地质通报, 25(3): 332-335.
王德滋. 2004. 华南花岗岩研究的回顾与展望. 高校地质学报, 10(3): 305-314.
王鹤年, 周丽娅. 2006. 华南地质构造的再认识. 高校地质学报, 12(4): 457-465.
王磊, 龙文国, 周岱. 2013. 云开地区加里东期花岗岩锆石U-Pb年龄及其地质意义. 中国地质, 40(4): 1016-1029.
伍光英, 马铁球, 冯艳芳, 闫全人, 刘富国, 柏道远. 2008. 南岭万洋山加里东期花岗岩地质地球化学特征及其成因. 中国地质, 35(4): 608-617.
吴浩若. 2000. 广西加里东运动构造古地理问题. 古地理学报, 2(1): 70-76.
伍静, 王广强, 梁华英, 黄文婷, 林书平, 邹银桥, 孙卫东, 王要武. 2014. 粤北大宝山矿区加里东期火山岩的厘定及其地质意义. 岩石学报, 30(4): 1145-1154.
巫建华, 项媛馨, 黄国荣, 刘晓东, 刘帅. 2012. 广东北部碎斑熔岩加里东期锆石SHRIMP年龄的首获及其地质意义. 高校地质学报, 18(4): 601-608.
吴元保, 郑永飞. 2004. 锆石成因矿物学研究及其对U-Pb年龄解释的制约. 科学通报, 49(16): 1589-1604.
邢凤鸣, 徐祥, 陈江峰, 周泰禧, Foland KA. 1992. 赣东北元古代蛇绿岩Sm-Nd同位素年龄及地质意义. 岩石矿物学杂志, 11(2): 120-124.
邢光福, 姜杨, 陈志洪, 周效华, 袁强, 段政. 2013. 钦杭结合带首次发现加里东期榴闪岩. 资源调查与环境, 34(4): 208.
许德如, 陈广浩, 夏斌, 李鹏春, 贺转利. 2006. 湘东地区板杉铺加里东期埃达克质花岗闪长岩的成因及地质意义. 高校地质学报, 12(4): 507-521.
许华, 倪战旭, 黄炳诚, 韩淑朋, 王翠云, 陈杨. 2016. 广西大瑶山东南缘早古生代TTG侵入岩石组合的确定及其区域构造意义. 中国地质, 43(3): 780-796.
徐夕生. 2008. 华南花岗岩-火山岩成因研究的几个问题. 高校地质学报, 14(3): 283-294.
许效松, 刘伟, 门玉澎, 张海全. 2012. 对新元古代湘桂海盆及邻区构造属性的探讨. 地质学报, 86(12): 1890-1904.
杨明桂, 梅勇文. 1997. 钦-杭古板块结合带与成矿带的主要特征. 华南地质与矿产, (3): 52-59.
杨树锋, 陈汉林, 武光海, 董传万. 1995. 闽北早古生代岛弧火山岩的发现及其地质意义. 地质科学, 30(2): 105-116.
易立文, 马昌前, 王连训, 赖中信, 李湘玉, 杨亚楠, 吴飞, 胡晏如. 2014. 华南晚奥陶世次火山岩的发现: 早古生代与俯冲有关的英安岩?. 地球科学(中国地质大学学报), 39(6): 637-653.
尹福光, 许效松, 万方, 陈明. 2001. 华南地区加里东期前陆盆地演化过程中的沉积响应. 地球学报, 22(5): 425-428.
殷鸿福, 吴顺宝, 杜远生, 彭远桥. 1999. 华南是特提斯多岛洋体系的一部分. 地球科学, 24(1): 1-12.
于津海, 王丽娟, O'Reilly SY, 舒良树, 孙涛. 2009. 赣南存在古元古代基底: 来自上犹陡水煌斑岩中捕虏锆石的U-P-Hf同位素证据. 科学通报, 54(7): 898-905.
于津海, 楼法生, 王丽娟, 沈林伟, 周雪瑶, 张春晖, 黄志忠. 2014. 赣东北弋阳早古生代麻粒岩的发现及其地质意义. 中国科学, 59(35): 3508-3516.
曾长育, 周永章, 郑义, 虞鹏鹏, 牛佳, 梁锦. 2015. 钦-杭结合带在中生代构造转折事件以前的板块构造机制. 地学前缘, 22(2): 54-63.
曾勇, 杨明桂. 1999. 赣中碰撞混杂岩带. 中国区域地质, 18(1): 17-22.
张爱梅, 王岳军, 范蔚茗, 张菲菲, 张玉芝. 2010. 闽西清流地区加里东期花岗岩锆石U-Pb年代学及Hf同位素组成研究. 大地构造与成矿学, 34(3): 408-418.
张芳荣, 舒良树, 王德滋, 于津海, 沈渭洲. 2009. 华南东段加里东期花岗岩类形成构造背景探讨. 地学前缘, 16(1): 248-260.
张国伟, 郭安林, 王岳军, 李三忠, 董云鹏, 刘少峰, 何登发, 程顺有, 鲁如魁, 姚安平. 2013. 中国华南大陆构造与问题. 中国科学(地球科学), 43(10): 1553-1582.
周国庆, 舒良树, 吴洪亮. 1989. 与赣东北元古代蛇绿岩有关的高温、高压变质岩和重变质作用机制的讨论. 岩石矿物学杂志, 8(3): 220-231.
周新民. 2003. 对华南花岗岩研究的若干思考. 高校地质学报, 9(4): 556-565.
周永章, 曾长育, 李红中, 安燕飞, 梁锦, 吕文超, 杨志军, 何俊国, 沈文杰. 2012. 钦州湾-杭州湾构造结合带(南段)地质演化和找矿方向. 地质通报, 31(2-3): 486-491.