亚洲免费av电影一区二区三区,日韩爱爱视频,51精品视频一区二区三区,91视频爱爱,日韩欧美在线播放视频,中文字幕少妇AV,亚洲电影中文字幕,久久久久亚洲av成人网址,久久综合视频网站,国产在线不卡免费播放

        ?

        南秦嶺冷水溝銅鉬金礦床年代學及其地質意義

        2023-12-29 00:00:00陳雷閆臻劉凱代軍治郭現輕聶瀟龐緒勇
        吉林大學學報(地球科學版) 2023年3期

        摘要:冷水溝銅鉬金礦床位于南秦嶺山陽—柞水礦集區(qū)內,是南秦嶺晚中生代斑巖-矽卡巖型銅(鉬)礦床的代表性礦床之一。冷水溝礦區(qū)內除斑巖-矽卡巖型銅鉬礦體外,還發(fā)育構造蝕變巖型金礦體,但對于銅鉬礦化與金礦化之間是否存在成因聯系一直存在疑惑。本次通過對斑巖-矽卡巖型銅鉬礦體中輝鉬礦與構造蝕變巖型金礦體中蝕變鉀長石和絹云母分別進行Re-Os和40Ar-39Ar定年,以期能夠通過成礦年代學研究來厘定兩者之間的成因聯系。測試結果顯示,斑巖-矽卡巖型銅鉬礦體的輝鉬礦Re-Os等時線年齡為(147.4±8.4)Ma,構造蝕變巖型金礦體中蝕變鉀長石和絹云母40Ar-39Ar年齡約為144 Ma,兩者在誤差范圍內一致,說明銅鉬礦體和金礦體均形成于晚侏羅世—早白堊世,是同一成礦作用的產物,并與區(qū)域內晚侏羅世—早白堊世巖漿巖具有密切的成因聯系。結合區(qū)域構造演化特征,本次研究結果顯示冷水溝銅鉬金礦床形成于晚中生代秦嶺造山帶構造體制轉變的動力學背景。同時,冷水溝地區(qū)金礦成礦時代的限定也表明南秦嶺地區(qū)存在晚侏羅世—早白堊世金礦成礦作用。

        關鍵詞:冷水溝銅鉬金礦床;輝鉬礦Re-Os定年;蝕變鉀長石和絹云母40Ar-39Ar定年;南秦嶺山陽柞水礦集區(qū)

        doi:10.13278/j.cnki.jjuese.20210430

        中圖分類號:P597;P611

        文獻標志碼:A

        Abstract: Lengshuigou Cu-Mo-Au deposit is located in the ShanyangZhashui ore concentration area, and is one of the representative deposits of the Late Mesozoic porphyryskarn Cu(Mo) deposits in the South Qinling orogenic belt. In addition to the porphyryskarn Cu-Mo mineralization, structuralaltered rocktype Au mineralization in the Lengshuigou deposit is also developed, but there are always doubts about whether there is a genetic connection between Cu-Mo mineralization and Au mineralization. Therefore, Re-Os dating of molybdenite from the porphyryskarn Cu-Mo mineralization and 40Ar-39Ar dating of altered potassium feldspar and sericite from structuralaltered rocktype Au mineralization were carried out, respectively, in order to be able to pass mineralization ages to determine their genetic relationship between the two mineralization types. The results show that the Re-Os isochron age of molybdenite is (147.4±8.4) Ma, the 40Ar-39Ar ages of the altered potassium feldspar and sericite are 144 Ma, and these ages are consistent within the error range. It indicates that the porphyryskarn Cu-Mo mineralization and structuralaltered rocktype Au mineralization were formed in the Late JurassicEarly Cretaceous, and they are the products of the same mineralization and magmatic events in the South Qinling orogenic belt. Combined with the regional tectonic evolution, the results show that the Lengshuigou Cu-Mo-Au deposit was formed in the background of the tectonic regime transition of the Qinling orogenic belt during the Late Mesozoic. In addition, the metallogenic epoch of Lengshuigou Au mineralization also shows that the Late JurassicEarly Cretaceous Au mineralization existed in the South Qinling orogenic belt, which has important indicative significance for regional gold exploration.

        Key words:Lengshuigou Cu-Mo-Au deposit; Re-Os dating of molybdenite; 40Ar-39Ar dating of altered potassium feldspar and sericite; ShanyangZhashui ore concentration area of South Qinling

        0 引言

        秦嶺造山帶是華北板塊和揚子板塊長期聚合而形成的復合造山帶,不僅是中國中央造山帶重要的組成部分,同時也是中國重要的有色金屬和貴金屬成礦帶之一。由于多期次的造山運動,秦嶺造山帶內出露有大量不同時期的巖漿巖,同時也發(fā)育有數百個不同時期、不同類型的金屬礦床。因此,秦嶺造山帶的構造-巖漿-成礦作用一直以來都是國內外地質學家研究的熱點。

        山陽—柞水礦集區(qū)位于南秦嶺造山帶的北部,夾持于商丹斷裂和山陽—鳳鎮(zhèn)斷裂之間,發(fā)育復雜多樣的多期構造變形、強烈而廣泛的巖漿活動和多種成因類型的巖漿熱液礦床。山陽—柞水礦集區(qū)內出露有大量印支期和燕山期的巖漿巖,尤其是在燕山期巖體內部及其周邊形成了一系列的斑巖-矽卡巖型銅鉬金礦床,并表現出斑巖-矽卡巖成礦系統(tǒng)特征。冷水溝銅鉬金礦床是山陽—柞水礦集區(qū)內最具代表性的斑巖-矽卡巖型礦床。該礦區(qū)不僅發(fā)育有完整的斑巖-矽卡巖型銅鉬礦床,在其外圍還發(fā)育構造蝕變巖型金礦床。雖然已有學者對冷水溝礦床的成礦巖體、成礦特征及成礦流體等方面進行了研究,但對于冷水溝礦區(qū)內的斑巖-矽卡巖型銅鉬礦床和構造蝕變巖型金礦床之間的成因聯系并未進行詳細闡釋,兩者之間是否是同一成礦事件的產物仍存在疑惑。此外,南秦嶺造山帶內分布有大量早—中生代金礦床,如八卦廟金礦床、金龍山金礦床和長溝金礦床等,冷水溝礦區(qū)內的金礦是否與這些已發(fā)現的早中生代金礦床是同期成礦作用的產物也存在疑惑。因此,本次在前期對冷水溝銅鉬金礦床詳細地質研究的基礎上,選取礦區(qū)內的斑巖-矽卡巖型銅鉬礦體中的輝鉬礦進行Re-Os同位素定年,同時也選取了構造蝕變巖型金礦體中熱液蝕變成因的鉀長石和絹云母進行40Ar-39Ar定年,以期通過詳細的年代學證據來闡述冷水溝礦區(qū)斑巖-矽卡巖型銅鉬礦體與構造蝕變巖型金礦體之間的成因聯系,以及冷水溝礦區(qū)的金礦床與南秦嶺地區(qū)已發(fā)現的早—中生代金礦床之間的聯系,豐富南秦嶺地區(qū)成礦規(guī)律研究,同時也為區(qū)域礦產勘查工作提供理論依據。

        1 區(qū)域地質

        山陽—柞水礦集區(qū)位于商丹斷裂和山陽—鳳鎮(zhèn)斷裂之間,歸屬于南秦嶺造山帶,屬于古生代弧前盆地 (圖1a, b)。區(qū)內主要出露有中、上泥盆統(tǒng)和石炭系以及少量前寒武紀地層。泥盆系主要包括上泥盆統(tǒng)下東溝組和桐峪寺組,中泥盆統(tǒng)牛耳川組、池溝組和青石埡組;石炭系有下石炭統(tǒng)二峪河組和介河組,中石炭統(tǒng)鐵廠鍋組和上石炭統(tǒng)武王溝組(圖1c)。泥盆系和石炭系巖性主要為粉砂巖、砂巖、絹云母板巖、結晶灰?guī)r、石英雜砂巖及白云巖共同組成,系一套濱、淺海相—河流三角洲相沉積組合,并經歷了低綠片巖相變質作用。

        山陽—柞水礦集區(qū)斷裂、褶皺發(fā)育。區(qū)域上,斷裂以近EW向的山陽—鳳鎮(zhèn)斷裂和紅巖寺—黑山斷裂為主,其中山陽—鳳鎮(zhèn)斷裂具有多期活動特征,具有同沉積斷裂特征,并控制了礦集區(qū)的形態(tài)以及沉積組合特征。同時,近NNW向的上官坊、張家坪—桐木溝等斷裂與近EW向斷裂相切,這些斷裂交匯部位是山陽—柞水礦集區(qū)內不同規(guī)模的花崗巖侵入體及相關的斑巖-矽卡巖型礦床(點)形成的主要區(qū)域,控制了山陽—柞水礦集區(qū)的構造、巖漿和成礦作用。

        區(qū)域內巖漿活動強烈,從元古宙、古生代到中生代的不同時期均有巖漿活動出露,但以中生代巖漿活動最為強烈且分布最為廣泛。其中:印支期巖體主要分布在礦集區(qū)西部和北部,規(guī)模較大,巖性也較為復雜,主要有東江口巖體、柞水巖體、曹坪巖體等大型巖體。燕山期巖體主要出露在礦集區(qū)中部,規(guī)模較小,主要有袁家溝、小河口、園子街、下官坊、白沙溝、池溝、雙元溝及土地溝巖體,在南部的冷水溝復式巖體中也有燕山期花崗斑巖和花崗閃長斑巖出露。這些燕山期巖體與圍巖呈侵入接觸關系,在巖體與地層的接觸帶常見矽卡巖化、角巖化、綠簾石化、綠泥石化、絹云母化及硅化等熱液蝕變,并發(fā)育有矽卡巖型Cu-Mo-Fe(Au)礦化;巖體內部發(fā)育有強烈的鉀化、硅化、綠泥石化、絹云母化、高嶺土化等熱液蝕變,可見斑巖型Cu-Mo礦化。山陽—柞水礦集區(qū)內成礦作用強烈,主要發(fā)育有元古宙與基性巖相關的鈦磁鐵礦床、泥盆紀熱水噴流沉積改造型Cu-Ag-Pb-Zn礦床、印支期斑巖型Mo礦床和燕山期斑巖-矽卡巖型Cu-Mo-Fe(Au)礦床,除此以外礦集區(qū)還發(fā)育有造山型和卡林(類卡林)型Au礦床。

        2 礦床地質特征

        冷水溝礦區(qū)內出露的地層主要有元古宙斜長角閃巖和泥盆紀地層(圖2)。泥盆系主要由中泥盆統(tǒng)龍洞溝組、上泥盆統(tǒng)古道嶺組和云鎮(zhèn)組組成。中泥盆統(tǒng)龍洞溝組主要巖性為大理巖、千枚巖夾透鏡狀凝灰?guī)r;上泥盆統(tǒng)古道嶺組主要為中厚層灰?guī)r,少量大理巖、薄層灰?guī)r夾千枚巖;上泥盆統(tǒng)云鎮(zhèn)組主要為粉砂巖、粉砂質板巖、絹云母板巖夾粉晶灰?guī)r及礫巖透鏡體。泥盆系與新元古界斜長角閃巖呈角度不整合或斷層接觸。

        礦區(qū)內巖漿活動強烈,主要由新元古代花崗巖、鈉長巖、(石英)閃長巖和中生代花崗斑巖、花崗閃長斑巖構成冷水溝復式巖體。新元古代巖漿巖主要形成于708~704 Ma,中生代花崗斑巖和花崗閃長斑巖主要形成于148~143 Ma。中生代花崗閃長斑巖和花崗斑巖侵入于新元古代巖漿巖和地層中,與銅鉬金礦化關系密切。礦區(qū)內構造強烈,主要發(fā)育有NW向、NNE向、近SN向斷裂,其中NW向和NNE向斷裂以正斷層為主,控制了中生代巖漿巖和礦體的展布。

        冷水溝礦區(qū)內主要發(fā)育有斑巖-矽卡巖型銅(鉬)礦體及蝕變巖型金(銀)礦體,斑巖型銅鉬礦體主要分布于與中生代花崗質巖石接觸的新元古代巖漿巖和斜長角閃巖中,矽卡巖型銅(鉬)礦體主要分布于中生代巖體與泥盆紀碳酸鹽巖的接觸部位,礦體呈細脈狀、透鏡狀、平行斜列狀分布。冷水溝斑巖-矽卡巖型銅鉬礦體的熱液蝕變主要是硅化、鉀化、絹云母化、綠泥石化、角巖化和矽卡巖化,其中鉀化和絹云母化蝕變與銅鉬礦化關系最為密切。矽卡巖型銅鉬礦化主要與矽卡巖和角巖化熱液蝕變有關。斑巖型銅鉬蝕變礦化組合主要為:早期為鉀化(鉀長石化、黑云母化)+硅化+綠泥石化±硫化物(黃鐵礦±輝鉬礦),該階段基本無礦化;中期為硅化+絹云母化±綠泥石化±硫化物(黃鐵礦、黃銅礦和輝鉬礦),該階段是主要銅鉬礦化階段;晚期為方解石化無礦階段。銅鉬礦石構造以細脈狀、脈狀為主。矽卡巖型礦化主要分布于透輝石石榴石矽卡巖和綠簾石透輝石矽卡巖中(圖3a),矽卡巖型礦體與賦礦矽卡巖產狀一致,主要為銅礦化。蝕變巖型金礦的熱液蝕變組合為硅化+鉀長石化+絹云母化±綠泥石化±方解石化,金礦化與硅化、鉀長石化和絹云母化關系最為密切(圖3b、c)。金礦體呈脈狀或破碎蝕變巖狀產出,脈厚一般小于5 cm,多產于斜長角閃巖中斷裂或裂隙中,少量產于花崗巖或花崗斑巖的節(jié)理或裂隙中,金礦體受后期斷裂構造影響大。

        冷水溝礦區(qū)內金屬礦物主要為黃鐵礦、黃銅礦、輝鉬礦、閃鋅礦、方鉛礦、斑銅礦和磁鐵礦(圖3d-f)。脈石礦物主要由石榴石、透輝石、符山石、陽起石、綠簾石、綠泥石、絹云母、鉀長石及方解石等構成。

        3 測試樣品與分析方法

        本次研究選取了冷水溝銅鉬礦體中的輝鉬礦進行Re-Os同位素定年,用于測試的輝鉬礦主要來自含輝鉬礦的透輝石石榴石矽卡巖型銅鉬礦石(圖3a)。同時挑選了冷水溝礦區(qū)南部金礦體中蝕變鉀長石和絹云母進行40Ar-39Ar定年,其中蝕變鉀長石主要來自于斜長角閃巖中穿插石英-鉀長石脈(圖3b),絹云母主要來自于泥盆紀砂巖中穿插的含金的石英-絹云母±黃鐵礦脈(圖3c),具體采樣位置見圖2。

        輝鉬礦Re-Os同位素年齡測試在國家地質實驗測試中心Re-Os同位素實驗室完成。首先將稱取后的輝鉬礦加入到Carius管,并加入185Re和190Os混合稀釋劑及HCl、HNO3、H2O2,加熱、升溫后進行蒸餾分離Os和萃取分離Re;然后采用美國熱電HR-ICP-MS測定同位素比值。對于Re:選擇質量數為185、187,用190監(jiān)測Os。對于Os:選擇質量數為186、187、188、189、190、192,用185監(jiān)測Re。詳細Re、Os化學分離步驟和質譜測定參照文獻。

        40Ar-39Ar年齡測試工作在中國科學院地質與地球物理研究所Ar-Ar實驗室進行。將黑云母樣品稱重后用鋁箔包裹,和國際標樣Bern4M一同裝入內徑為0.8 cm、長約2.5 cm的石英玻璃管,外部由0.5 mm厚的鎘皮包裹,以便屏蔽熱中子。樣品送入中國原子能研究院49-2反應堆H8孔道照射47.5 h,中子通量的變化約為3%/cm。照射后的樣品放置1~2個月以使放射性水平降至安全操作范圍。測試使用Noblesse稀有氣體質譜儀進行Ar-Ar年齡測試,年齡誤差置信水平為2σ,詳細實驗步驟可見文獻。

        4 測試結果

        輝鉬礦Re-Os同位素測試結果(表1)表明,冷水溝輝鉬礦的模式年齡在147.2~145.6 Ma之間,4件輝鉬礦的等時線年齡為(147.4±8.4) Ma(圖4a),加權平均年齡為(146.2±2.3) Ma(圖4b),兩者在誤差范圍內一致,說明冷水溝銅鉬礦體的形成時代約為147 Ma,形成于燕山期。

        冷水溝蝕變絹云母和蝕變鉀長石40Ar-39Ar定年分析結果見表2和圖5。金礦體中的絹云母并未得到坪年齡,僅得到了(144.4±1.5) Ma的全熔年齡(圖5a),這說明絹云母中K和放射性Ar分布不

        a. 矽卡巖型銅鉬礦石,黃銅礦和輝鉬礦星點狀分布于矽卡巖中;b. 冷水溝構造蝕變巖型金礦體中的斜長角閃巖中穿插的石英-鉀長石脈;c. 冷水溝構造蝕變巖型金礦中粉砂巖中穿插的石英-絹云母脈,脈體中含有黃鐵礦等硫化物,并在脈體邊緣發(fā)育有絹云母;d. 矽卡巖型銅鉬礦石中輝鉬礦和黃鐵礦;e. 矽卡巖型銅鉬礦石中黃鐵礦交代早期的石榴石和透輝石;f. 構造蝕變巖型金礦石中黃鐵礦和黃銅礦。Ccp. 黃銅礦;Mol. 輝鉬礦;Py. 黃鐵礦;Di. 透輝石;Grt. 石榴石。

        均勻,可能還受到后期的熱擾動。蝕變鉀長石的Ar-K 釋放量中呈現平坦的年齡坪,其坪年齡為(144.6±1.8) Ma(圖5b)。良好的年齡坪說明蝕變的鉀長石中K和放射性Ar分布均勻,礦物自生成以后保持良好的封閉狀態(tài),沒有受到后期的熱擾動,該年齡也可以真實反映鉀長石的形成時代。絹云母并未得到較好的坪年齡,可能是由于金礦體形成過程中發(fā)生了強烈的流體不混溶,由于絹云母較低的封閉溫度,這種強烈流體不混溶作用破壞了絹云母的封閉狀態(tài),從而導致了其并未形成坪年齡。但是絹云母的全熔年齡和鉀長石的坪年齡在誤差范圍內一致,并且兩者均為金礦化過程中的熱液蝕變產物,因此,可以認為冷水溝銅鉬金礦床的金礦化形成時代約為144 Ma。

        5 討論

        5.1 冷水溝銅鉬金礦床成礦時代

        冷水溝矽卡巖型銅鉬礦石中輝鉬礦具有較高的Re質量分數(表1),并且187Re/187Os介于0.407 5~0.411 2之間,表明這些輝鉬礦具有進行Re-Os同位素定年的可行性。同時輝鉬礦的Re質量分數較為均一,Re-Os模式年齡也相近(表1),表明該輝鉬礦的Re-Os測試結果是可靠的。并且輝鉬礦的Re-Os等時線年齡與模式年齡在誤差范圍內一致,進一步證明此次測試的輝鉬礦Re-Os同位素年齡真實、可靠。本次蝕變鉀長石的40Ar-39Ar定年結果顯示了良好的年齡坪,形成坪年齡的39Ar累計釋放量約占總量的80%(表2),說明冷水溝蝕變巖型金礦床中蝕變鉀長石保持了較好的封閉狀態(tài),該年齡值真實反映了蝕變鉀長石的形成時代。由于成礦流體的不混溶作用常會造成封閉溫度較低的熱液蝕變礦物無法形成較好的40Ar-39Ar坪年齡,而冷水溝金礦體的流體包裹體研究也顯示成礦流體在成礦作用過程中發(fā)生了較為強烈的流體不混溶作用。因此,成礦流體不混溶可能是造成冷水溝蝕變絹云母未形成40Ar-39Ar坪年齡的原因。但是,絹云母的全熔年齡和蝕變鉀長石40Ar-39Ar坪年齡一致,說明他們都形成于金礦化形成階段,能夠真實反映冷水溝蝕變巖型金礦床的形成時代。

        南秦嶺地區(qū)出露有大量晚三疊世和晚侏羅世—早白堊世巖漿巖,并在其周邊及內部發(fā)育強烈的熱液蝕變,并形成了斑巖-矽卡巖型銅鉬礦床。年代學研究顯示這些斑巖-矽卡巖型銅鉬礦床形成于148~140 Ma之間,并具有斑巖-矽卡巖型成礦系統(tǒng)。冷水溝礦區(qū)不僅發(fā)育有斑巖-矽卡巖型銅鉬礦化,還發(fā)育有構造蝕變巖型金礦。本次對冷水溝金礦體中蝕變鉀長石、絹云母和銅鉬礦體中輝鉬礦的測年結果顯示,金礦體和銅鉬礦體均形成于147~144 Ma之間,兩者的成礦年齡在誤差范圍內一致,說明冷水溝礦區(qū)內的銅鉬礦化和金礦化是同期成礦作用的產物。同時冷水溝礦區(qū)斑巖-矽卡巖型銅鉬礦體、構造蝕變巖型金礦體的流體包裹體和S同位素特征均顯示兩種類型的成礦與巖漿巖密切相關。此外,本次年代學研究顯示,冷水溝銅鉬礦化和金礦化的成礦時代均與礦區(qū)內的花崗閃長斑巖和花崗斑巖的成巖時代一致,說明冷水溝礦區(qū)內的銅鉬金礦床均與區(qū)域內晚侏羅世—早白堊世的巖漿巖具有成因聯系,是同一成礦作用的產物。這也表明南秦嶺晚侏羅世—早白堊世巖體不僅可以形成斑巖-矽卡巖型銅鉬礦床,在其外圍有利地段也具有形成金礦化的潛力,為今后相關的勘查工作提供了指示。

        5.2 動力學背景及區(qū)域成礦意義

        秦嶺造山帶經歷了新元古代、古生代和中生代多期次構造巖漿熱事件和造山作用,形成了復雜多樣的多期構造變形、強烈而廣泛的巖漿活動和豐富的礦產資源。在北秦嶺和華北板塊南緣地區(qū),在古生代俯沖—增生造山作用的基礎上疊加了中生代碰撞造山作用,巖漿活動強烈,形成了金堆城、南泥湖—三道莊、上房溝和東溝等超大型斑巖、斑巖-矽卡巖型鉬(鎢)礦床,以及十幾個大中型鉬礦床,并形成著名的東秦嶺鉬礦帶。前期的研究顯示,東秦嶺地區(qū)的鉬礦床形成于元古宙、晚三疊世和晚侏羅世—早白堊世,其中晚侏羅世—早白堊世成礦作用又可分為160~140 Ma和130~100 Ma兩期成礦作用。本次冷水溝礦區(qū)斑巖-矽卡巖型銅鉬礦體的Re-Os同位素年齡顯示南秦嶺地區(qū)的銅礦床與華北板塊南緣的晚中生代鉬礦床形成時代相同,是同期構造-巖漿活動的產物。同時,本次研究也表明東秦嶺地區(qū)不僅發(fā)育有晚中生代的鉬礦床,還發(fā)育了同時期的銅礦床,對區(qū)域成礦規(guī)律研究具有重要意義。

        此外,南秦嶺地區(qū)發(fā)育有眾多的大型、超大型金礦床,如金龍山金礦床、陽山金礦床、八卦廟金礦床、雙王金礦床、鏵廠溝金礦床及夏家店金礦床等,在礦床成因類型上以卡林—類卡林型和造山型金礦為主,少量為角礫巖型金礦床(表3)。成礦時代上,南秦嶺地區(qū)的金礦主要形成于晚三疊世,少量形成于早侏羅世和早白堊世(表3)。然而,本次研究顯示冷水溝銅鉬金礦床形成于晚侏羅世—早白堊世,尤其是金礦的成礦時代上明顯晚于南秦嶺晚三疊世和早侏羅世金礦床,這表明南秦嶺造山帶內至少存在晚三疊世、早侏羅世和晚侏羅世—早白堊世多期金礦床的成礦作用。

        南秦嶺地區(qū)晚三疊世和早侏羅世金礦床的形成與三疊紀—早侏羅世華北板塊和揚子板塊的碰撞、聚合具有密切成因聯系。早期古特提斯洋殼的俯沖和后期揚子板塊和華北板塊的陸陸碰撞形成巖石圈尺度的熱異常,驅動造山帶的熱液成礦系統(tǒng),為南秦嶺地區(qū)晚三疊世和早侏羅世金礦床的形成提供了重要成礦條件。本次研究顯示冷水溝銅鉬金礦床與同時期的花崗閃長斑巖和花崗斑巖具有成因聯系,而這些晚侏羅世—早白堊世花崗質巖石主要形成于晚中生代秦嶺陸內造山的伸展階段,并且表現出強烈的殼幔混源特征。

        三疊紀—早侏羅世,由于華北板塊與揚子板塊沿秦嶺—大別造山帶發(fā)生洋-陸俯沖及陸-陸碰撞,隨后整個秦嶺造山帶進入陸內造山演化階段。北秦嶺和華北板塊南緣分布的晚侏羅世鎂鐵質巖石和暗色包體以及南秦嶺地區(qū)早白堊世拉分盆地均顯示在晚侏羅世—早白堊世時期秦嶺造山帶的構造體制已經發(fā)生轉變。此外,山陽—柞水地區(qū)發(fā)育的NE向和NNE向斷裂與華北板塊南緣由于晚中生代的伸展作用而形成的NNE向斷裂一致,這也說明在晚中生代南秦嶺的構造體制已經由擠壓環(huán)境轉變?yōu)樯煺弓h(huán)境。在此過程中,由于構造體制的轉變引起了秦嶺造山帶地幔物質的上涌,形成了南秦嶺地區(qū)晚侏羅世—早白堊世具有強烈殼?;煸刺卣鞯幕◢徺|巖石。這些晚侏羅世—早白堊世花崗質巖石在上升、侵位的過程中不僅形成了南秦嶺地區(qū)晚中生代斑巖-矽卡巖型銅鉬礦床,同時也在部分有利地段形成了金礦床,從而形成了冷水溝斑巖-矽卡巖銅鉬和構造蝕變巖型金礦的成礦體系。

        因此,筆者認為冷水溝地區(qū)的銅鉬礦化和金礦化形成于晚中生代秦嶺構造體制轉變,大規(guī)模的巖石圈伸展作用對南秦嶺晚中生代銅鉬金礦化起到了重要作用。同時,冷水溝晚中生代金礦化的厘定表明南秦嶺地區(qū)也存在有晚侏羅世—早白堊世金礦成礦作用,對區(qū)域內金礦的勘查工作具有重要的指示意義。

        6 結論

        1)冷水溝礦床中銅鉬礦體和金礦體形成于147~144 Ma之間,是同一成礦作用的產物,與區(qū)域內晚侏羅世—早白堊世巖漿巖具有成因聯系。

        2)冷水溝銅鉬金礦床形成于晚中生代秦嶺造山帶構造體制轉變的動力學背景。

        3)冷水溝地區(qū)晚中生代金礦的厘定表明南秦嶺地區(qū)不僅存在有晚三疊世—早侏羅世金礦成礦作用,還存在有晚侏羅世—早白堊世金礦成礦作用。

        致謝:謹以此文慶祝孫景貴教授60華誕。孫景貴教授在學習和工作中給予的諄諄指導和幫助,匿名評審人對文稿提出了寶貴的修改意見,在此一并表示衷心的感謝。

        參考文獻(References):

        Mattauer M, Matte P, Malavieille J, et al. Tectonics of the Qinling Belt: BuildUp and Evolution of Eastern Asia. Nature, 1985, 317:496-500.

        Krner A, Zhang G W, Sun Y. Granulites in the Tongbai Area, Qinling Belt, China: Geochemistry, Petrology, Single Zircon Geochronology, and Implications for the Tectonic Evolution of Eastern Asia. Tectonics, 1993, 12(1):245-255.

        Meng Q R, Zhang G W. Geologic Framework and Tectonic Evolution of the Qinling Orogen, Central China. Tectonophysics, 2000, 323(3):183-196.

        張國偉,張本仁,袁學誠,等.秦嶺造山帶與大陸動力學. 北京:科學出版社,2001: 1-855.

        Zhang Guowei, Zhang Benren, Yuan Xuecheng, et al. Qinling Orogenic Belt and Continental Dynamics. Beijing: Science Press, 2001: 1-855.

        Lai S C, Zhang G W, Li S Z. Ophiolites from the Mianlue Suture in the Southern Qinling and Their Relationship with Eastern PaleoTethys Evolution. Acta Geological Sinica: English Edition, 2004, 78(1):107-117.

        Lai S C, Zhang G W. Geochemical Features of Ophiolites in MianxianLueyang Suture Zone, Qinling Orogenic Belt. Journal of China University of Geosciences, 1996, 7(2):165-172.

        Sun W D, Li S G, Chen Y D, et al. Timing of SynOrogenic Granitoids in the South Qinling, Central China: Constraints on the Evolution of the QinlingDabie Orogenic Belt. Journal of Geology, 2002, 110(4):457-468.

        Sun W D, Li S G, Sun Y, et al. MidPaleozoic Collision in the North Qinling: Sm-Nd, Rb-Sr and 40Ar/39Ar Ages and Their Geological Implications. Journal of Asian Earth Sciences, 2002, 21(1): 69-76.

        Wang T, Wang X X, Zhang G W, et al. Remnants of a Neoproterozoic Collisional Orogenic Belt in the Core of the Phanerozoic Qinling Orogenic Belt (China). Gondwana Research, 2003, 6(4): 699-710.

        陸松年,陳志宏,李懷坤,等. 秦嶺造山帶中—新元古代(早期)地質演化. 地質通報,2004,23(2): 107-112.

        Lu Songnian, Chen Zhihong, Li Huaikun, et al. Late MesoproterozoicEarly Neoproterozoic Evolution of the Qinling Orogen. Geological Bulletin of China, 2004, 23(2): 107-112.

        陸松年,李懷坤,陳志宏,等.秦嶺造山帶中—新元古代地質演化及對Rodinia超級大陸事件的響應. 北京: 地質出版社, 2003: 1-202.

        Lu Songnian, Li Huaikun, Chen Zhihong, et al.MesoNeoproterozoic Geological Evolution of the Qinling Orogenic Belt and Its Response to the Rodinia Supercontinent Event. Beijing: Geological Publishing House, 2003: 1-202.

        張成立,劉良,張國偉,等. 北秦嶺新元古代后碰撞花崗巖的確定及其構造意義. 地學前緣,2004,11(3): 33-42.

        Zhang Chengli, Liu Liang, Zhang Guowei, et al. Determination of Neoproterozoic PostCollisional Granites in the North Qinling Mountains and Its Tectonic Significance. Earth Science Frontiers, 2004, 11(3): 33-42.

        張成立,王濤,王曉霞.秦嶺造山帶早中生代花崗巖成因及其構造環(huán)境. 高校地質學報,2008,14(3): 304-316.

        Zhang Chengli, Wang Tao, Wang Xiaoxia. Origin and Tectonic Setting of the Early Mesozoic Granitoids in Qinling Orogenic Belt. Geological Journal of China Universities, 2008, 14(3): 304-316.

        陳雋璐,徐學義,王洪亮,等.北秦嶺西段唐藏石英閃長巖巖體的形成時代及其地質意義. 現代地質,2008,22(1): 45-52.

        Chen Junlu, Xu Xueyi, Wang Hongliang, et al. LA-ICP-MS Zircon U-Pb Dating of Tangzang QuartzDiorite Pluton in the West Segment of North Qinling Mountains and Its Tectonic Significanc. Geoscience, 2008, 22(1):45-52.

        王濤,王曉霞,田偉,等.北秦嶺古生代花崗巖組合、巖漿時空演變及其對造山作用的啟示. 中國科學.D輯,2009, 39(7):949-971.

        Wang Tao, Wang Xiaoxia, Tian Wei, et al. North Qinling Paleozoic Granite Associations and Their Variation in Space and Time: Implications for Orogenic Processes in the Orogens of Central China. Science in China: Series D, 2009, 39(7):949-971.

        Qin J F, Lai S C, Rodeney G, et al. Geochemicak Evidence for Origin of Magma Mixing for the Triassic Monzonitic Granite and Its Enclaves at Mishuling in the Qinling Orogen (Central China). Lithos, 2009, 112(3/4): 259-276.

        Qin J F, Lai S C, Rodeney G, et al. Origin of Late Triassic HighMg Adakitic Granitoid Rocks from the Dongjiangkou Area, Qinling Orogen, Central China: Implications for Subduction of Continental Crust. Lithos, 2010, 120(3/4): 347-367.

        Jiang Y H, Jin G D, Liao S Y, et al. Geochemical"" and Sr-Nd-Hf Isotopic Constraints on the Origin of Late Triassic Granitoids from the Qinling Orogen, Central China: Implications for a Continental Arc to ContinentContinent Collision. Lithos, 2010, 117(1/2/3/4): 183-197.

        王曉霞,王濤,齊秋菊,等.秦嶺晚中生代花崗巖時空分布、成因演變及構造意義. 巖石學報,2011,27(6): 1573-1593.

        Wang Xiaoxia, Wang Tao, Qi Qiuju, et al. TemporalSpatial Variations, Origin and Their Tectonic Significance of the Late Mesozoic Granites in the Qinling, Central China. Acta Petrologica Sinica, 2011, 27(6): 1573-1593.

        Dong Y P, Liu X, Zhang G W, et al. Triassic Diorites and Granitoids in the Foping Area: Constraints on the Conversion from Subduction to Collision in the Qinling Orogen, China. Journal of Asian Earth Sciences, 2012, 47(30): 123-142.

        王宗起, 閆全人, 閆臻, 等. 秦嶺造山帶主要大地構造單元的新劃分. 地質學報,2009,83(11): 1527-1546.

        Wang Zongqi, Yan Quanren, Yan Zhen, et al. New Division of the Main Tectonic Units of the Qinling Orogenic Belt, Central China. Acta Geologica Sinica, 2009, 83(11): 1527-1546.

        王東生,王瑞廷,代軍治,等. 秦嶺造山帶金屬礦床的“二元控礦”特征. 地質學報,2009,83(11): 1719-1729.

        Wang Dongsheng, Wang Ruiting, Dai Junzhi, et al. The “Binary Ore Control” Characteristics of Metal Deposits in Qinling Orogenic Belt. Acta Geological Sinica, 2009, 83(11): 1719-1729.

        閆臻,王宗起,陳雷,等. 南秦嶺山陽—柞水礦集區(qū)構造-巖漿-成礦作用. 巖石學報,2014,30(2): 401-414.

        Yan Zhen, Wang Zongqi, Chen Lei, et al. TectonicMagmaticMetallogenic Process in ShanyangZhashui Ore Concentration Area of South Qinling. Acta Petrologica Sinica, 2014, 30(2): 401-414.

        陳雷,王宗起,閆臻,等. 秦嶺山陽—柞水礦集區(qū)150~140 Ma斑巖-矽卡巖型CuMoFe(Au)礦床成礦作用研究. 巖石學報,2014,30(2): 415-436.

        Chen Lei, Wang Zongqi, Yan Zhen, et al. Mineralization of the 150-140 Ma PorphyrySkarn CuMoFe(Au) Deposit in the ShanyangZhashui Ore Concentration Area of Qinling Mountains. Acta Petrologica Sinica, 2014, 30(2): 415-436.

        陳雷,閆臻,王宗起,等. 陜西山陽—柞水礦集區(qū)燕山期巖體礦物學特征:對巖漿性質及成礦作用的指示. 地質學報, 2014, 88(1): 109-133.

        Chen Lei, Yan Zhen, Wang Zongqi, et al. Mineralogical Characteristic of the Yanshanian Granitic Rocks in ShanyangZhashui Ore Concentration Area: An Indicator for the Magmatic Nature and Metallogenesis. Acta Geologica Sinica, 2014, 88(1): 109-133.

        羅德正. 陜西冷水溝—下官房一帶中酸性侵入體成銅特征. 河南地質, 1995, 13(2): 91-94.

        Luo Dezheng. The Metallogenic Characteristics of Copper Deposits in Intermediate Acid Intrusive in the LengshuigouXiaguanfang District, Shaanxi Province. Henan Geology, 1995, 13(2): 91-94.

        張銀龍. 陜西省山陽縣小河口地區(qū)酸性—中酸性巖體地質特征及其成礦地質條件分析. 陜西地質, 2002, 20(2): 27-38.

        Zhang Yinlong. Geological Features and the Metallogenetic Conditions of AcidIntermediate Acid Small Rock Bodies in Xiaohekou Area of Shanyang County, Shaanxi Province. Geology of Shaanxi, 2002, 20(2): 27-38.

        王瑞廷,李劍斌,任濤,等. 柞水—山陽多金屬礦集區(qū)成礦條件及找礦潛力分析. 中國地質,2008,35(6): 1291-1298.

        Wang Ruiting, Li Jianbin, Ren Tao, et al. Analysis on Metallogenic Conditions and Prospecting Potential of ZhashuiShanyang Polymetallic Ore Concentration Area. Geology in China, 2008, 35(6): 1291-1298.

        張西社,代軍治,王瑞廷,等. 陜西柞冷(水溝) —池(溝) —色(河浦)金鉬銅礦帶特征及其區(qū)域找礦意義. 中國地質,2012,39(6): 1727-1742.

        Zhang Xishe, Dai Junzhi, Wang Ruiting, et al. Characteristics of Leng(shuigou)-Chi(gou)-Se(hepu) Metallogenic Belt in Zhashan Area of Shaanxi Province and Their Regional OreProspecting Significance. Geology in China, 2012, 39(6): 1727-1742.

        孟德明,王瑞廷,王鵬,等. 陜西柞水—山陽礦集區(qū)冷水溝銅鉬礦床成礦特征及成礦機制探討. 礦床地質,2014,33(4): 833-846.

        Meng Deming, Wang Ruiting, Wang Peng, et al. Study of Characteristics and Metallogenic Mechanism of Lengshuigou CopperMolybdenum Deposit in ZhashuiShanyang Ore Concentration Area, Qinling Orogeny, Shaanxi Province. Mineral Deposits, 2014, 33(4): 833-846.

        代軍治,張西社,王鵬,等. 南秦嶺柞水縣冷水溝銅鉬金礦床成礦流體、H-O-S同位素特征及成礦作用. 地質與勘探,2015,51(1): 13-22.

        Dai Junzhi, Zhang Xishe, Wang Peng, et al. Features of OreForming Fluids, H-O-S Isotopes and Mineralization of the Lengshuigou Cu-Mo-Au Deposit in Zhashui County, South Qinling. Geology and Exploration, 2015, 51(1): 13-22.

        Yan Z, Wang Z Q, Yan Q R, et al. Geochemical Constraintson the Provenance and Depositional Setting of the Devonian Liuling Group, East Qinling Mountains, Central China: Implications for the Tectonic Evolution of the Qinling Orogenic Belt. Journal of Sedimentary Research, 2012, 82(1):9-20.

        Yan Z, Wang Z Q, Yan Q R, et al. Devonian Sedimentary Environments and Provenance of the Qinling Orogen: Constraints on Late Paleozoic Southward Accretionary Tectonics of the North China Craton. International Geology Review, 2006, 48(7): 585-618.

        閆臻,王宗起,王濤,等. 秦嶺造山帶泥盆系形成構造環(huán)境: 來自碎屑巖組成和地球化學方面的約束. 巖石學報,2007,23(5): 1023-1042.

        Yan Zhen, Wang Zongqi, Wang Tao, et al. Tectonic Setting of Devonian Sediments in the Qinling Orogen: Constraints from Detrital Modes and Geochemistry of Clastic Rocks. Acta Petrologica Sinica, 2007, 23(5): 1023-1042.

        王宗起,王濤,閆臻,等. 秦嶺晚古生代弧前增生的背馱型盆地體系. 地質通報,2002,21(8/9): 456-464.

        Wang Zongqi, Wang Tao, Yan Zhen, et al. Piggyback Basin System of Late Paleozoic PreArc Hyperplasia in Qinling Mountains. Geological Bulletin of China, 2002, 21(8/9): 456-464.

        端木合順. 陜西鳳縣—山陽泥盆系同沉積斷裂礫巖. 古地理學報,2000,2(3): 92-98.

        Duanmu Heshun. The Conglomerates Controlled by Synsedimentary Faults of the Devonian in the FengxianShanyang, Shaanxi Province. Journal of Palaeogeography, 2000, 2(3): 92-98.

        方維萱,胡瑞忠.秦嶺造山帶泥盆紀三級構造熱水沉積成礦盆地主控因素:大型-超大型礦床集中區(qū)研究(I). 大地構造與成礦學,2001,25(1): 27-35.

        Fang Weixuan, Hu Ruizhong. Key Controls of Devonian ThreeOrder Hydrothermal Sedmentary Basin with Mineralizer in the Qinling Orogen, China: Research on Accumulational District of LargeSuperlarge Ore Deposits (Part I). Geotectonica et Metallogenia, 2001, 25(1): 27-35.

        陳衍景,張靜,張復新,等. 西秦嶺地區(qū)卡林—類卡林型金礦床及其成礦時間、構造背景和模式. 地質論評,2004,50(2): 134-152.

        Chen Yanjing, Zhang Jing, Zhang Fuxin, et al. Carlin and CarlinLike Gold Deposits in Western Qinling Mountains and Their Metallogenic Time, Tectonic Setting and Model. Geological Review, 2004, 50(2): 134-152.

        Xie G Q,Mao J W, Wang R T, et al. Origin of the Lengshuigou PorphyrySkarn Cu Deposit in the ZhaShan District, South Qinling, Central China, and Implications for Differences Between Porphyry Cu and Mo Deposits. Mineralium Deposita, 2017, 52(4): 621-639.

        吳發(fā)富,王宗起,閆臻,等. 秦嶺山陽—柞水地區(qū)燕山期中酸性侵入巖地球化學特征、鋯石U-Pb年齡及Lu-Hf同位素組成. 巖石學報,2014,30(2): 451-471.

        Wu Fafu, Wang Zongqi, Yan Zhen, et al. Geochenmical Characteristics, Zircons U-Pb Ages and Lu-Hf Isotopic Composition of the Yanshanian IntermediateAcidic Plutons in ShanyangZhashui Areas, Qinling Orogenic Belt. Acta Petrologica Sinica, 2014, 30(2): 451-471.

        杜安道,何紅蓼,殷寧萬,等.輝鉬礦的錸-鋨同位素地質年齡測定方法研究. 地質學報,1994,68(4): 339-347.

        Du Andao, He Hongliao, Yin Ningwan, et al. A Study on the RheniumOsmium Geochronometry of Molybdenites. Acta Geologica Sinica, 1994, 68(4): 339-347.

        杜安道,趙敦敏,王淑賢,等. Carius管溶樣和負離子熱表面電離質譜準確測定輝鉬礦錸-鋨同位素地質年齡. 巖礦測試,2001,20(4): 247-252.

        Du Andao, Zhao Dunmin, Wang Shuxian, et al. Precise Re-Os Dating for Molybdenite by ID-NTIMS with Carius Tube Sample Preparation. Rock and Mineral Analysis, 2001, 20(4): 247-252.

        屈文俊,杜安道. 高溫密閉溶樣電感耦合等離子體質譜準確測定輝鉬礦錸-鋨地質年齡. 巖礦測試,2003,22(4): 254-257.

        Qu Wenjun, Du Andao. Highly Precise Re-Os Dating of Molybdenite by ICP-MS with Carius Tube Sample Digestion. Rock and Mineral Analysis, 2003, 22(4): 254-257.

        Wang F, Zhu R X, Hou Q L, et al. 40Ar/39Ar Thermochronology on Central China Orogen: Cooling, Uplift and Implications for the Orogeny Dynamics. Geological Society, London, Special Publications, 2014, 378(1): 189-206.

        張本仁,陳德興,李澤九,等. 陜西柞水—山陽成礦帶區(qū)域地球化學. 武漢: 中國地質大學出版社,1989: 1-221.

        Zhang Benren, Chen Dexing, Li Zejiu, et al. Regional Geochemistry of ZhashuiShanyang Metallogenic Belt, Shaanxi Province. Wuhan: China University of Geosciences Press, 1989: 1-221.

        任濤,王瑞廷,王向陽,等. 秦嶺造山帶柞水—山陽沉積盆地銅礦勘查思路與方法. 地質學報,2009,83(11): 1730-1738.

        Ren Tao, Wang Ruiting, Wang Xiangyang, et al. A Way and Method for Prospecting Copper Deposit in the ZhashuiShanyang Sedimentary Basin in the Qinling Orogenic Belt. Acta Geologica Sinica, 2009, 83(11): 1730-1738.

        謝桂青,任濤,李劍斌,等. 陜西柞山盆地池溝銅鉬礦區(qū)含礦巖體的鋯石U-Pb年齡和巖石成因. 巖石學報,2012,28(1): 15-26

        Xie Guiqing, Ren Tao, Li Jianbin, et al. Zircon U-Pb Age and Petrogenesis of OreBearing Granitoid for the Chigou Cu-Mo Deposit from the Zhashan Basin, Shaanxi Province. Acta Petrologica Sinica, 2012, 28(1): 15-26.

        任濤,王瑞廷,謝桂青,等. 陜西池溝斑巖型銅礦床含礦巖體地球化學特征、成巖成礦時代及其意義. 礦床地質,2014,33(4): 807-820.

        Ren Tao, Wang Ruiting, Xie Guiqing, et al. Geochemistry and RockForming and OreForming Epochs of Chigou Cu Porphyry Deposit in Shaanxi Province, and Their Implications. Mineral Deposits, 2014, 33(4): 807-820.

        李諾,陳衍景,張輝,等. 東秦嶺斑巖鉬礦帶的地質特征和成礦構造背景. 地學前緣,2007,14(5): 186-198.

        Li Nuo, Chen Yanjing, Zhang Hui, et al. Molybdenum Deposits in East Qinling. Earth Science Frontiers, 2007, 14(5): 186-198.

        Mao J W, Xie G Q, Bierlein F, et al. Tectonic Implications from Re-Os Dating of Mesozoic Molybdenum Deposits in the East QinlingDabie Orogenic Belt. Geochimica et Cosmoschimica Acta, 2008, 72(18): 4607-4626.

        胡海珠,李諾,鄧小華,等. 秦嶺地區(qū)印支期鉬礦化特征及找礦前景. 中國地質,2013,40(2): 549-565.

        Hu Haizhu, Li Nuo, Deng Xiaohua, et al. Indosinian Mo Mineralization in Qinling Area and Prospecting Potential. Geology in China, 2013, 40(2): 549-565.

        何重果,李建威,Kontak D J,等. 西秦嶺造山帶早白堊世金成礦事件: 來自馬鞍橋金礦床榍石U-Pb定年的證據. 中國科學: 地球科學,2023,53(2): 300-318.

        He Chongguo, Li Jianwei, Kontak D J, et al. An Early Cretaceous Gold Mineralization Event in the Triassic West Qinling Orogen Revealed from U-Pb Titanite Dating of the Ma’anqiao Gold Deposit. Science China: Earth Sciences, 2023, 66(2): 316-333.

        劉沖昊. 陜西雙王金礦床成礦機制與成礦規(guī)律. 北京:中國地質大學(北京),2016.

        Liu Chonghao. Metallogenic Mechanism and Regularity of the Shuangwang Gold Deposit, Shaanxi Province. Beijing: China University of Geosciences (Beijing), 2016.

        馮建忠,邵世才,汪東波,等. 陜西八卦廟金礦脆—韌性剪切帶控礦特征及成礦構造動力學機制. 中國地質,2002,29(1): 58-66.

        Feng Jianzhong, Shao Shicai, Wang Dongpo, et al. Baguamiao Superlarge Gold Deposit in the Qinling Orogeny: The Characteristics of Its Control by the BrittlaeDuctile Shear Zone and Dynamic Mechanism for OreForming Structure. Geology in China, 2002, 29(1): 58-66.

        He C G, Li J W, Zu B, et al. Sericite 40Ar/39Ar and Zircon U-Pb Dating of the Liziyuan Gold Deposit, West Qinling Orogen, Central China: Implications for Ore Genesis and Tectonic Setting. Ore Geology Reviews, 2021, 139(12): 104531.

        Zeng Q T,McCuaig T C, Hart C J R, et al. Structural and Geochronological Studies on the Liba Goldfield of the West Qinling Orogen, Central China. Mineralium Deposita, 2012, 47(7): 799-819.

        齊金忠,李莉,袁士松,等. 甘肅省陽山金礦床石英脈中鋯石SHRIMP U-Pb年代學研究. 礦床地質,2005,24(2): 141-150.

        Qi Jinzhong, Li Li, Yuan Shisong, et al. A SHRIMP UPb Chronological Study of Zircons from Quartz Veins of Yangshan Gold Deposit, Gansu Province. Mineral Deposits, 2005, 24(2): 141-150.

        林振文,周永章,秦艷,等. 南秦嶺鏵廠溝金礦床鉻云母40Ar/39Ar年代學及其大地構造意義. 大地構造與成礦學,2017,41(2): 315-324.

        Lin Zhenwen, Zhou Yongzhang, Qin Yan, et al. Fuchsite 40Ar/39Ar Geochronology of the Huachanggou Gold Deposit and Its Tectonic Implications. Geotectonica et Metallogenia, 2017, 41(2): 315-324.

        趙利青,陳祥,周紅,等. 南秦嶺金龍山微細浸染型金礦成礦時代. 地質科學,2001,36(4): 489.

        Zhao Liqing, Chen Xiang, Zhou Hong, et al. Metallogenic Epoch of Jinlongshan MicroFine Disseminated Gold Deposit, South Qinling Mountains. Chinese Journal of Geology, 2001, 36(4): 489.

        楊興科,韓珂,何虎軍,等. 南秦嶺漢陰金礦田長溝金礦陸內造山期構造-蝕變巖相填圖與找礦模型. 地質通報,2020,39(11): 1715-1725.

        Yang Xingke, Han Ke, He Hujun, et al. Intracontinental Orogenic StructureAltered Lithofacies Mapping and Prospecting Model of the Changgou Gold Deposit in the Hanyin Gold Orefield, South Qinling. Geological Bulletin of China, 2020, 39(11): 1715-1725.

        曾志杰,陳雷. 南秦嶺山陽—柞水礦集區(qū)夏家店金礦床微量-鉑族元素地球化學特征及其對礦床成因的指示. 吉林大學學報(地球科學版),2021,51(3): 704-722.

        Zeng Zhijie, Chen Lei. Geochemistry of Trace and Platinum Group Elements of Xiajiadian Gold Deposit in ShanyangZhashui Ore Concentration Area in South Qinling: Implications of Ore Genesis. Journal of Jilin University (Earth Science Edition), 2021, 51(3): 704-722.

        Liu J J, Liu C H, Carranza E J M, et al. Geological Characteristics and OreForming Process of the Gold Deposits in the Western Qinling Region, China. Journal of Asian Earth Sciences, 2015, 103: 40-69.

        Dong Y P, Yang Z, Liu X M, et al. Mesozoic Intracontinental Orogeny in the Qinling Mountains, Central China. Gondwana Research, 2016, 30(2): 144-158.

        Liu R, Li J W, Bi S J, et al. Magma Mixing Revealed from in situ Zircon U-Pb-Hf Isotope Analysis of the Muhuguan Granitoid Pluton, Eastern Qinling Orogen, China: Implications for Late Mesozoic Tectonic Evolution. International Journal of Earth Sciences, 2013, 102(6): 1583-1602.

        Bao Z W, Wang C Y, Zhao T P, et al. Petrogenesis of the Mesozoic Granites and Mo Mineralization of the Luanchuan Ore Field in the East Qinling Mo Mineralization Belt, Central China. Ore Geology Reviews, 2014, 57(3): 132-153.

        張英利,王宗起,閆臻. 西秦嶺徽縣—成縣早白堊世盆地沉積特征及其構造意義. 地質通報,2012,31(7): 1142-1154.

        Zhang Yingli, Wang Zongqi, Yan Zhen. Depositional Characteristics of Early Cretaceous HuixianChengxian Basin in Western Qinling Mountains and Their Structural Significance. Geological Bulletin of China, 2012, 31(7): 1142-1154

        翟明國,孟慶任,劉建明,等.華北東部中生代構造體制轉折峰期的主要地質效應和形成動力學探討. 地學前緣,2004,11(3): 285-297.

        Zhai Mingguo, Meng Qingren, Liu Jianming, et al. Geological Features of Mesozoic Tectonic Regime Inversion in Eastern North China and Implication for Geodynamics. Earth Science Frontiers, 2004, 11(3): 285-297.

        孫萬龍,韓奎,魯麟等.南秦嶺鎮(zhèn)安西部晚三疊世煌斑巖脈地球化學特征及其對構造環(huán)境的指示.地質通報,2022,41(11):1982-1995.

        Sun Wanlong, Han Kui, Lu Lin, et al. Geochemical Characteristics of Late Triassic Lamprophyres from the Western Zhen’an,South Qinling and Its Indicative Significance for Tectonic Environment. Geological Bulletin of China,2022,41(11):1982-1995.

        久久av粉嫩一区二区| 粗大的内捧猛烈进出在线视频| 91性视频| 国产精品av网站在线| 又黄又爽又色又刺激的视频| 岛国大片在线免费观看 | 国产av日韩a∨亚洲av电影| 亚洲AV秘 片一区二区三区| 伊人婷婷综合缴情亚洲五月| 中文字幕日韩精品永久在线| 丰满人妻熟妇乱又仑精品| 国产在视频线精品视频| 亚洲区日韩精品中文字幕| 日本一区二区三区精品不卡| 国产av无码专区亚洲av果冻传媒 | 午夜av天堂精品一区| 免费黄色影片| 午夜探花在线观看| 成人女同av免费观看| 人妻少妇精品视频专区vr| 亚洲中文字幕国产综合| 少妇无码av无码去区钱| 亚洲免费福利视频网站| 亚洲av中文无码乱人伦在线视色| 无码粉嫩虎白一线天在线观看| 国产午夜无码精品免费看动漫| 偷拍视频十八岁一区二区三区 | 日韩精品免费一区二区三区观看| 帮老师解开蕾丝奶罩吸乳视频| 久久精品国产99精品国偷| 国语自产啪在线观看对白| 亚洲精品无码永久中文字幕| 黑人巨大白妞出浆| 蜜臀aⅴ永久无码一区二区| 日本一级二级三级不卡| 又大又粗又爽18禁免费看| 欧美色色视频| 亚洲第一大av在线综合| 国产精品一区二区三区在线蜜桃| 另类老妇奶性生bbwbbw| 野外三级国产在线观看|