现代地质 ›› 2018, Vol. 32 ›› Issue (02): 213-226.DOI: 10.19657/j.geoscience.1000-8527.2018.02.01
收稿日期:
2017-07-11
修回日期:
2017-09-20
出版日期:
2018-04-10
发布日期:
2018-05-07
作者简介:
张英利,男,副研究员,1979年出生,矿物学、岩石学、矿床学专业,主要从事盆地构造与沉积学研究。Email:yinglizh@126.com。
基金资助:
ZHANG Yingli1(), WANG Zongqi1, JIA Xiaotong1,2, CHEN Muyin3
Received:
2017-07-11
Revised:
2017-09-20
Online:
2018-04-10
Published:
2018-05-07
摘要:
上扬子会泽地区晚三叠世须家河组主要由辫状河-浅湖的砂岩和泥岩组成,交错层理校正恢复的物源主要来自东南方向。碎屑重矿物钛铁矿、锐钛矿、铬尖晶石和磁铁矿组合表明物源主要来自岩浆岩,部分为基性岩,且重矿物中发现大量碎屑电气石和锆石。运用电子探针成分分析和碎屑锆石LA-ICP-MS U-Pb测年方法,分别对须家河组砂岩中电气石和碎屑锆石进行测试分析。电气石化学成分显示主要为镁电气石和黑电气石,来自变质板岩和变质砂岩以及贫锂花岗岩类、伟晶岩和细晶岩。砂岩碎屑锆石U-Pb年龄谱分析表明,须家河组的物源主要来自257~362 Ma、420~492 Ma、782~876 Ma和1 690~2 176 Ma岩石。物源方向、重矿物以及电气石和碎屑锆石综合分析表明,须家河组物源主要来自滇黔桂古陆。其中,257~362 Ma的物源岩石主要为峨眉山玄武岩同期侵入岩;420~492 Ma来自东南源岩为花岗岩和砂岩,782~876 Ma主要为研究区周缘同期的花岗岩和砂岩,1 690~2 176 Ma物源也是源岩为岩浆岩的砂岩。与飞仙关组物源对比,须家河组物源区明显不同,可能与区域构造运动有关。同时,碎屑锆石指示古元古代发育岩浆作用,且存在古老的新太古代结晶基底。这些资料为上扬子构造演化提供了沉积学证据。
中图分类号:
张英利, 王宗起, 贾晓彤, 陈木银. 上扬子会泽地区晚三叠世须家河组砂岩物源特征:基于重矿物分析和碎屑锆石U-Pb测年[J]. 现代地质, 2018, 32(02): 213-226.
ZHANG Yingli, WANG Zongqi, JIA Xiaotong, CHEN Muyin. Provenance of Late Triassic Xujiahe Formation in Huize Area, Upper Yangtze: Based on Heavy Mineral Analysis and Detrital Zircon U-Pb Dating[J]. Geoscience, 2018, 32(02): 213-226.
图1 大地构造单元图(a)和会泽地区地质简图(b) Ⅰ.龙门山造山带;Ⅱ.松潘-甘孜造山带;Ⅲ.康滇古陆;Ⅳ.四川盆地;Ⅴ.盐源褶冲带;Ⅵ.楚雄盆地;Ⅶ.滇东台褶带;①龙门山断裂;②金河断裂;③箐河断裂;④鲜水河断裂;⑤则木河断裂;⑥小江断裂;1.取样位置;2.断层;3.新生界;4.侏罗系;5.须家河组;6.关岭组;7.嘉陵江组;8.飞仙关组;9.宣威组;10.峨眉山玄武岩;11.二叠系中、下统;12.石炭系;13.泥盆系
Fig.1 Tectonic units division (a) and simplified geological map of Huize area (b)
重矿物/% | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
锆石 | 磷灰石 | 锐钛矿 | 金红石 | 钛铁矿 | 黄铁矿 | 电气石 | 铬尖晶石 | 赤-褐铁矿 | 独居石 | 磁铁矿 | 其他 |
38.3 | 6.16 | 0.22 | 6.09 | 14.08 | 0.16 | 29.54 | 1.04 | 0.12 | 3 | 0.25 | 1.04 |
表1 上扬子会泽地区须家河组砂岩HLS15重矿物含量组成(%)
Table 1 Heavy mineral composition (%) of Xujiahe Formation HLS15 sandstone in the Huize area of Upper Yangtze
重矿物/% | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
锆石 | 磷灰石 | 锐钛矿 | 金红石 | 钛铁矿 | 黄铁矿 | 电气石 | 铬尖晶石 | 赤-褐铁矿 | 独居石 | 磁铁矿 | 其他 |
38.3 | 6.16 | 0.22 | 6.09 | 14.08 | 0.16 | 29.54 | 1.04 | 0.12 | 3 | 0.25 | 1.04 |
图4 会泽地区须家河组HLS15电气石透射光((a)和(b))和背散射((c)和(d))图像(○代表探针位置,数字为点号)
Fig.4 Features of detrital tourmaline of Xujiahe Formation HLS15 in the Huize area, photomicrographs ((a) and (b)) of representative tourmalines showing diverse shape, roundness and colors, and BSE images ((c) and (d)) showing chemical compositions of tourmaline grains
图5 碎屑电气石主量元素三元分类和二元分类图(底图据Henry et al.[47],2011)
Fig.5 Major element chemical composition of detrital tourmalines in the Xvacancy-Ca-(Na+K) ternary diagram and Xvacancy/(Xvacancy+Na+K) vs. Mg/(Mg+Fe) diagram illustrating tourmaline species (according to Henry et al. [47], 2011)
点号 | SiO2 | TiO2 | Al2O3 | FeO | MgO | CaO | MnO | Na2O | K2O | H2O* | B2 | Li2O* | Total | Si | Ti | Al | Fe2+ | Mg | Mn | Li+* | Ca | Na | K | Xvacancy |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 34.55 | 0.85 | 33.84 | 9.92 | 3.51 | 0.57 | 0.02 | 1.97 | 0.07 | 3.6 | 10.44 | 0.35 | 99.69 | 5.75 | 0.11 | 6.64 | 1.38 | 0.87 | 0.00 | 0.23 | 0.10 | 0.64 | 0.02 | 0.24 |
2 | 34.55 | 0.94 | 33.52 | 13.09 | 1.06 | 0.26 | - | 2.12 | 0.06 | 3.56 | 10.33 | 0.46 | 99.95 | 5.81 | 0.12 | 6.65 | 1.84 | 0.27 | 0.00 | 0.31 | 0.05 | 0.69 | 0.01 | 0.25 |
3 | 35.43 | 0.47 | 24.79 | 11.89 | 9.94 | 2.90 | 0.13 | 1.67 | 0.07 | 3.55 | 10.29 | 0.00 | 101.13 | 5.98 | 0.06 | 4.93 | 1.68 | 2.50 | 0.02 | 0.00 | 0.53 | 0.55 | 0.02 | 0.00 |
4 | 34.68 | 0.82 | 32.64 | 12.52 | 2.56 | 0.80 | 0.11 | 2.08 | 0.08 | 3.59 | 10.39 | 0.33 | 100.60 | 5.80 | 0.10 | 6.43 | 1.75 | 0.64 | 0.02 | 0.23 | 0.14 | 0.67 | 0.02 | 0.17 |
5 | 34.92 | 0.78 | 33.56 | 9.70 | 4.13 | 0.73 | 0.08 | 2.13 | 0.01 | 3.63 | 10.51 | 0.33 | 100.51 | 5.77 | 0.10 | 6.54 | 1.34 | 1.02 | 0.01 | 0.22 | 0.13 | 0.68 | 0.00 | 0.19 |
6 | 35.72 | 0.23 | 31.68 | 7.07 | 7.12 | 0.87 | 0.06 | 2.64 | 0.04 | 3.64 | 10.54 | 0.27 | 99.88 | 5.89 | 0.03 | 6.16 | 0.98 | 1.75 | 0.01 | 0.18 | 0.15 | 0.84 | 0.01 | 0.00 |
7 | 36.08 | 0.46 | 29.57 | 8.02 | 8.01 | 0.76 | 0.05 | 3.08 | 0.09 | 3.63 | 10.52 | 0.16 | 100.43 | 5.96 | 0.06 | 5.76 | 1.11 | 1.97 | 0.01 | 0.11 | 0.14 | 0.99 | 0.02 | 0.00 |
8 | 35.44 | 0.18 | 30.02 | 7.36 | 8.40 | 1.46 | 0.07 | 2.11 | 0.05 | 3.59 | 10.41 | 0.02 | 99.11 | 5.92 | 0.02 | 5.91 | 1.03 | 2.09 | 0.01 | 0.01 | 0.26 | 0.68 | 0.01 | 0.05 |
9 | 34.19 | 0.45 | 31.84 | 15.51 | 1.58 | 0.31 | 0.29 | 2.79 | 0.05 | 3.54 | 10.25 | 0.18 | 100.98 | 5.80 | 0.06 | 6.36 | 2.20 | 0.40 | 0.04 | 0.12 | 0.06 | 0.92 | 0.01 | 0.02 |
10 | 34.64 | 0.45 | 33.37 | 13.76 | 1.19 | 0.25 | 0.16 | 2.28 | 0.06 | 3.57 | 10.34 | 0.35 | 100.42 | 5.82 | 0.06 | 6.61 | 1.94 | 0.30 | 0.02 | 0.24 | 0.05 | 0.74 | 0.01 | 0.20 |
11 | 35.22 | 0.35 | 25.34 | 10.48 | 9.86 | 2.44 | 0.13 | 1.88 | 0.08 | 3.53 | 10.22 | 0.00 | 99.53 | 5.99 | 0.05 | 5.08 | 1.49 | 2.50 | 0.02 | 0.00 | 0.45 | 0.62 | 0.02 | 0.00 |
12 | 35.23 | 0.70 | 32.73 | 10.07 | 3.80 | 0.58 | 0.00 | 2.64 | 0.11 | 3.62 | 10.49 | 0.51 | 100.48 | 5.84 | 0.09 | 6.39 | 1.40 | 0.94 | 0.00 | 0.34 | 0.10 | 0.85 | 0.02 | 0.01 |
13 | 33.53 | 0.74 | 31.49 | 16.02 | 0.85 | 0.68 | 0.04 | 2.62 | 0.10 | 3.49 | 10.13 | 0.34 | 100.03 | 5.75 | 0.10 | 6.37 | 2.30 | 0.22 | 0.01 | 0.24 | 0.13 | 0.87 | 0.02 | 0.00 |
14 | 35.75 | 0.98 | 33.73 | 7.91 | 4.66 | 0.55 | 0.05 | 2.24 | 0.02 | 3.67 | 10.65 | 0.47 | 100.68 | 5.83 | 0.12 | 6.49 | 1.08 | 1.13 | 0.01 | 0.31 | 0.10 | 0.71 | 0.00 | 0.19 |
15 | 34.74 | 0.19 | 31.88 | 10.63 | 5.08 | 0.94 | 0.08 | 2.34 | 0.06 | 3.59 | 10.4 | 0.16 | 100.09 | 5.81 | 0.02 | 6.28 | 1.49 | 1.27 | 0.01 | 0.11 | 0.17 | 0.76 | 0.01 | 0.04 |
16 | 36.14 | 0.48 | 33.08 | 7.07 | 5.33 | 0.27 | 0.12 | 2.53 | 0.00 | 3.65 | 10.59 | 0.45 | 99.71 | 5.93 | 0.06 | 6.40 | 0.97 | 1.30 | 0.02 | 0.29 | 0.05 | 0.81 | 0.00 | 0.15 |
17 | 36.55 | 0.76 | 34.11 | 6.28 | 6.00 | 0.46 | 0.11 | 2.36 | 0.09 | 3.74 | 10.83 | 0.45 | 101.74 | 5.86 | 0.09 | 6.45 | 0.84 | 1.44 | 0.02 | 0.29 | 0.08 | 0.73 | 0.02 | 0.16 |
18 | 35.64 | 1.06 | 33.04 | 8.52 | 5.15 | 0.74 | 0.02 | 2.3 | 0.04 | 3.68 | 10.66 | 0.4 | 101.25 | 5.81 | 0.13 | 6.35 | 1.16 | 1.25 | 0.00 | 0.26 | 0.13 | 0.73 | 0.01 | 0.13 |
表2 会泽地区须家河组砂岩HLS15电气石电子探针数据表
Table 2 Representative chemical composition of the detrital tourmalines HLS15 from the Xujiahe Formation sandstone
点号 | SiO2 | TiO2 | Al2O3 | FeO | MgO | CaO | MnO | Na2O | K2O | H2O* | B2 | Li2O* | Total | Si | Ti | Al | Fe2+ | Mg | Mn | Li+* | Ca | Na | K | Xvacancy |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 34.55 | 0.85 | 33.84 | 9.92 | 3.51 | 0.57 | 0.02 | 1.97 | 0.07 | 3.6 | 10.44 | 0.35 | 99.69 | 5.75 | 0.11 | 6.64 | 1.38 | 0.87 | 0.00 | 0.23 | 0.10 | 0.64 | 0.02 | 0.24 |
2 | 34.55 | 0.94 | 33.52 | 13.09 | 1.06 | 0.26 | - | 2.12 | 0.06 | 3.56 | 10.33 | 0.46 | 99.95 | 5.81 | 0.12 | 6.65 | 1.84 | 0.27 | 0.00 | 0.31 | 0.05 | 0.69 | 0.01 | 0.25 |
3 | 35.43 | 0.47 | 24.79 | 11.89 | 9.94 | 2.90 | 0.13 | 1.67 | 0.07 | 3.55 | 10.29 | 0.00 | 101.13 | 5.98 | 0.06 | 4.93 | 1.68 | 2.50 | 0.02 | 0.00 | 0.53 | 0.55 | 0.02 | 0.00 |
4 | 34.68 | 0.82 | 32.64 | 12.52 | 2.56 | 0.80 | 0.11 | 2.08 | 0.08 | 3.59 | 10.39 | 0.33 | 100.60 | 5.80 | 0.10 | 6.43 | 1.75 | 0.64 | 0.02 | 0.23 | 0.14 | 0.67 | 0.02 | 0.17 |
5 | 34.92 | 0.78 | 33.56 | 9.70 | 4.13 | 0.73 | 0.08 | 2.13 | 0.01 | 3.63 | 10.51 | 0.33 | 100.51 | 5.77 | 0.10 | 6.54 | 1.34 | 1.02 | 0.01 | 0.22 | 0.13 | 0.68 | 0.00 | 0.19 |
6 | 35.72 | 0.23 | 31.68 | 7.07 | 7.12 | 0.87 | 0.06 | 2.64 | 0.04 | 3.64 | 10.54 | 0.27 | 99.88 | 5.89 | 0.03 | 6.16 | 0.98 | 1.75 | 0.01 | 0.18 | 0.15 | 0.84 | 0.01 | 0.00 |
7 | 36.08 | 0.46 | 29.57 | 8.02 | 8.01 | 0.76 | 0.05 | 3.08 | 0.09 | 3.63 | 10.52 | 0.16 | 100.43 | 5.96 | 0.06 | 5.76 | 1.11 | 1.97 | 0.01 | 0.11 | 0.14 | 0.99 | 0.02 | 0.00 |
8 | 35.44 | 0.18 | 30.02 | 7.36 | 8.40 | 1.46 | 0.07 | 2.11 | 0.05 | 3.59 | 10.41 | 0.02 | 99.11 | 5.92 | 0.02 | 5.91 | 1.03 | 2.09 | 0.01 | 0.01 | 0.26 | 0.68 | 0.01 | 0.05 |
9 | 34.19 | 0.45 | 31.84 | 15.51 | 1.58 | 0.31 | 0.29 | 2.79 | 0.05 | 3.54 | 10.25 | 0.18 | 100.98 | 5.80 | 0.06 | 6.36 | 2.20 | 0.40 | 0.04 | 0.12 | 0.06 | 0.92 | 0.01 | 0.02 |
10 | 34.64 | 0.45 | 33.37 | 13.76 | 1.19 | 0.25 | 0.16 | 2.28 | 0.06 | 3.57 | 10.34 | 0.35 | 100.42 | 5.82 | 0.06 | 6.61 | 1.94 | 0.30 | 0.02 | 0.24 | 0.05 | 0.74 | 0.01 | 0.20 |
11 | 35.22 | 0.35 | 25.34 | 10.48 | 9.86 | 2.44 | 0.13 | 1.88 | 0.08 | 3.53 | 10.22 | 0.00 | 99.53 | 5.99 | 0.05 | 5.08 | 1.49 | 2.50 | 0.02 | 0.00 | 0.45 | 0.62 | 0.02 | 0.00 |
12 | 35.23 | 0.70 | 32.73 | 10.07 | 3.80 | 0.58 | 0.00 | 2.64 | 0.11 | 3.62 | 10.49 | 0.51 | 100.48 | 5.84 | 0.09 | 6.39 | 1.40 | 0.94 | 0.00 | 0.34 | 0.10 | 0.85 | 0.02 | 0.01 |
13 | 33.53 | 0.74 | 31.49 | 16.02 | 0.85 | 0.68 | 0.04 | 2.62 | 0.10 | 3.49 | 10.13 | 0.34 | 100.03 | 5.75 | 0.10 | 6.37 | 2.30 | 0.22 | 0.01 | 0.24 | 0.13 | 0.87 | 0.02 | 0.00 |
14 | 35.75 | 0.98 | 33.73 | 7.91 | 4.66 | 0.55 | 0.05 | 2.24 | 0.02 | 3.67 | 10.65 | 0.47 | 100.68 | 5.83 | 0.12 | 6.49 | 1.08 | 1.13 | 0.01 | 0.31 | 0.10 | 0.71 | 0.00 | 0.19 |
15 | 34.74 | 0.19 | 31.88 | 10.63 | 5.08 | 0.94 | 0.08 | 2.34 | 0.06 | 3.59 | 10.4 | 0.16 | 100.09 | 5.81 | 0.02 | 6.28 | 1.49 | 1.27 | 0.01 | 0.11 | 0.17 | 0.76 | 0.01 | 0.04 |
16 | 36.14 | 0.48 | 33.08 | 7.07 | 5.33 | 0.27 | 0.12 | 2.53 | 0.00 | 3.65 | 10.59 | 0.45 | 99.71 | 5.93 | 0.06 | 6.40 | 0.97 | 1.30 | 0.02 | 0.29 | 0.05 | 0.81 | 0.00 | 0.15 |
17 | 36.55 | 0.76 | 34.11 | 6.28 | 6.00 | 0.46 | 0.11 | 2.36 | 0.09 | 3.74 | 10.83 | 0.45 | 101.74 | 5.86 | 0.09 | 6.45 | 0.84 | 1.44 | 0.02 | 0.29 | 0.08 | 0.73 | 0.02 | 0.16 |
18 | 35.64 | 1.06 | 33.04 | 8.52 | 5.15 | 0.74 | 0.02 | 2.3 | 0.04 | 3.68 | 10.66 | 0.4 | 101.25 | 5.81 | 0.13 | 6.35 | 1.16 | 1.25 | 0.00 | 0.26 | 0.13 | 0.73 | 0.01 | 0.13 |
图6 会泽地区须家河组砂岩碎屑电气石成分划分图解(底图据Henry和Guidotti [48],1985) (a)Al-Fe-Mg图解;(b)Ca-Fe-Mg图解;A.富锂花岗岩、伟晶岩和细晶岩;B.贫锂花岗岩类及其关联的伟晶岩和细晶岩;C.富铁电气石岩石(蚀变花岗岩);D.伴生铝饱和相共存的变质板岩和变质砂岩;E.不伴生铝饱和相的变质板岩和变质砂岩;F.富铁电气石石英岩、钙质硅酸盐岩和变质板岩;G.低钙变超基性岩和富铬、钒变沉积岩;H.变碳酸盐岩和变质辉岩;1.富锂花岗岩、伟晶岩和细晶岩;2.贫锂花岗岩类伴生伟晶岩和细晶岩;3.富钙变质板岩、变质砂岩和钙质硅酸盐岩;4.贫钙变质板岩、变质砂岩和电气石石英岩;5.变质碳酸盐岩;6.变超基性岩
Fig.6 Composition of detrital tourmaline from Huize area plotted on the ternary classification diagrams of Henry and Guidotti[48]
点号 | 元素含量/10-6 | Th/U | 同位素比值及误差 | 同位素年龄及误差/Ma | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pb | Th | U | 207Pb/206Pb | 207Pb/235U | 206Pb/238U | 207Pb/206Pb | 207Pb/235U | 206Pb/238U | ||||||||
比值 | 1σ | 比值 | 1σ | 比值 | 1σ | 比值 | 1σ | 比值 | 1σ | 比值 | 1σ | |||||
2 | 7 | 35 | 43 | 0.81 | 0.075 7 | 0.004 6 | 1.448 3 | 0.123 7 | 0.142 5 | 0.004 0 | 1 087 | 117 | 909 | 51 | 859 | 23 |
3 | 86 | 117 | 196 | 0.59 | 0.125 1 | 0.001 7 | 6.678 8 | 0.163 8 | 0.385 6 | 0.005 2 | 2 030 | 23 | 2 070 | 22 | 2 103 | 24 |
4 | 19 | 49 | 48 | 1.01 | 0.109 3 | 0.002 4 | 4.855 2 | 0.172 0 | 0.323 8 | 0.005 5 | 1 787 | 37 | 1 795 | 30 | 1 808 | 27 |
5 | 12 | 83 | 144 | 0.57 | 0.058 5 | 0.002 1 | 0.626 5 | 0.032 6 | 0.079 0 | 0.001 4 | 547 | 76 | 494 | 20 | 490 | 9 |
6 | 11 | 63 | 135 | 0.47 | 0.059 8 | 0.003 3 | 0.604 2 | 0.043 9 | 0.074 4 | 0.001 5 | 595 | 114 | 480 | 28 | 463 | 9 |
7 | 16 | 109 | 101 | 1.08 | 0.065 9 | 0.002 6 | 1.174 4 | 0.065 6 | 0.129 0 | 0.002 5 | 804 | 78 | 789 | 31 | 782 | 14 |
8 | 27 | 62 | 59 | 1.05 | 0.124 2 | 0.002 6 | 6.312 2 | 0.220 5 | 0.370 1 | 0.006 4 | 2 018 | 35 | 2 020 | 31 | 2 030 | 30 |
9 | 27 | 55 | 55 | 0.99 | 0.136 0 | 0.002 6 | 7.573 0 | 0.255 6 | 0.404 9 | 0.007 5 | 2 176 | 31 | 2 182 | 30 | 2 192 | 35 |
10 | 129 | 186 | 341 | 0.55 | 0.117 1 | 0.001 8 | 5.570 4 | 0.148 5 | 0.343 8 | 0.004 9 | 1 912 | 26 | 1 912 | 23 | 1 905 | 23 |
11 | 36 | 54 | 55 | 0.98 | 0.164 1 | 0.003 2 | 11.888 2 | 0.389 4 | 0.524 2 | 0.008 6 | 2 499 | 31 | 2 596 | 31 | 2 717 | 36 |
12 | 29 | 53 | 68 | 0.77 | 0.124 9 | 0.002 6 | 6.292 6 | 0.214 6 | 0.365 9 | 0.006 0 | 2 027 | 35 | 2 017 | 30 | 2 010 | 28 |
13 | 17 | 109 | 99 | 1.09 | 0.074 7 | 0.003 1 | 1.388 9 | 0.081 8 | 0.136 3 | 0.002 7 | 1 061 | 80 | 884 | 35 | 823 | 15 |
16 | 81 | 178 | 180 | 0.99 | 0.122 0 | 0.002 5 | 6.154 5 | 0.194 6 | 0.362 8 | 0.005 0 | 1 986 | 34 | 1 998 | 28 | 1 995 | 24 |
19 | 22 | 71 | 90 | 0.79 | 0.083 2 | 0.002 1 | 2.433 9 | 0.097 8 | 0.213 9 | 0.003 9 | 1 273 | 46 | 1 253 | 29 | 1 250 | 21 |
20 | 10 | 151 | 175 | 0.87 | 0.053 5 | 0.003 7 | 0.329 3 | 0.029 9 | 0.045 9 | 0.001 1 | 348 | 150 | 289 | 23 | 289 | 7 |
21 | 23 | 28 | 59 | 0.48 | 0.118 5 | 0.002 3 | 5.575 1 | 0.189 8 | 0.341 8 | 0.006 2 | 1 934 | 33 | 1 912 | 29 | 1 896 | 30 |
22 | 39 | 48 | 58 | 0.82 | 0.182 1 | 0.002 6 | 13.047 8 | 0.361 9 | 0.522 7 | 0.009 2 | 2 672 | 22 | 2 683 | 26 | 2 711 | 39 |
23 | 36 | 65 | 52 | 1.23 | 0.1773 | 0.002 4 | 12.167 0 | 0.323 2 | 0.499 6 | 0.008 3 | 2 628 | 21 | 2 617 | 25 | 2 612 | 36 |
26 | 40 | 52 | 66 | 0.79 | 0.164 8 | 0.002 7 | 10.715 1 | 0.314 1 | 0.473 4 | 0.007 7 | 2 505 | 26 | 2 499 | 27 | 2 498 | 34 |
28 | 204 | 115 | 603 | 0.19 | 0.114 1 | 0.001 4 | 5.006 6 | 0.107 6 | 0.317 3 | 0.003 5 | 1 866 | 21 | 1 820 | 18 | 1 777 | 17 |
29 | 7 | 15 | 20 | 0.75 | 0.109 4 | 0.004 0 | 4.185 3 | 0.259 2 | 0.305 9 | 0.009 4 | 1 789 | 64 | 1 671 | 51 | 1 720 | 46 |
31 | 21 | 65 | 39 | 1.67 | 0.121 4 | 0.002 9 | 5.965 2 | 0.227 8 | 0.360 4 | 0.006 3 | 1 977 | 40 | 1 971 | 33 | 1 984 | 30 |
32 | 36 | 193 | 479 | 0.4 | 0.055 3 | 0.001 3 | 0.522 6 | 0.018 5 | 0.068 7 | 0.001 0 | 424 | 49 | 427 | 12 | 428 | 6 |
33 | 9 | 92 | 129 | 0.71 | 0.056 5 | 0.002 8 | 0.431 1 | 0.030 6 | 0.057 8 | 0.001 5 | 473 | 104 | 364 | 22 | 362 | 9 |
34 | 15 | 197 | 246 | 0.8 | 0.050 4 | 0.002 4 | 0.345 3 | 0.021 3 | 0.049 8 | 0.000 8 | 213 | 103 | 301 | 16 | 313 | 5 |
35 | 126 | 201 | 309 | 0.65 | 0.114 9 | 0.001 3 | 5.340 2 | 0.115 0 | 0.337 9 | 0.004 3 | 1 878 | 20 | 1 875 | 18 | 1 876 | 21 |
36 | 31 | 52 | 86 | 0.61 | 0.106 7 | 0.002 4 | 4.452 8 | 0.157 9 | 0.305 2 | 0.004 9 | 1 743 | 38 | 1 722 | 29 | 1 717 | 24 |
37 | 7 | 74 | 105 | 0.7 | 0.057 8 | 0.003 5 | 0.413 5 | 0.033 4 | 0.054 3 | 0.001 3 | 523 | 126 | 351 | 24 | 341 | 8 |
39 | 15 | 254 | 228 | 1.11 | 0.056 2 | 0.002 8 | 0.381 0 | 0.025 2 | 0.051 | 0.000 9 | 459 | 106 | 328 | 19 | 321 | 6 |
40 | 64 | 100 | 105 | 0.95 | 0.162 5 | 0.003 0 | 10.412 5 | 0.350 3 | 0.464 1 | 0.008 9 | 2 482 | 29 | 2 472 | 31 | 2 458 | 39 |
41 | 515 | 438 | 1 371 | 0.32 | 0.114 6 | 0.001 3 | 5.444 2 | 0.105 6 | 0.343 7 | 0.003 6 | 1 874 | 19 | 1 892 | 17 | 1 904 | 17 |
42 | 252 | 96 | 515 | 0.19 | 0.162 0 | 0.001 7 | 9.989 7 | 0.187 5 | 0.446 2 | 0.004 5 | 2 477 | 17 | 2 434 | 17 | 2 378 | 20 |
43 | 9 | 19 | 27 | 0.69 | 0.107 5 | 0.003 4 | 4.254 9 | 0.209 7 | 0.297 1 | 0.006 4 | 1 757 | 54 | 1 685 | 41 | 1 677 | 32 |
44 | 35 | 37 | 101 | 0.37 | 0.107 5 | 0.002 4 | 4.784 3 | 0.158 7 | 0.322 4 | 0.004 2 | 1 757 | 38 | 1 782 | 28 | 1 801 | 20 |
45 | 55 | 160 | 126 | 1.27 | 0.114 9 | 0.002 0 | 5.283 9 | 0.152 6 | 0.333 3 | 0.004 5 | 1 879 | 30 | 1 866 | 25 | 1 854 | 22 |
47 | 53 | 53 | 93 | 0.57 | 0.166 9 | 0.002 2 | 11.024 2 | 0.268 3 | 0.480 1 | 0.006 7 | 2 526 | 21 | 2 525 | 23 | 2 528 | 29 |
48 | 74 | 146 | 185 | 0.79 | 0.113 6 | 0.001 9 | 5.169 2 | 0.148 4 | 0.329 3 | 0.004 8 | 1 857 | 29 | 1 848 | 24 | 1 835 | 23 |
49 | 17 | 45 | 39 | 1.14 | 0.119 9 | 0.003 1 | 5.744 6 | 0.237 6 | 0.350 9 | 0.006 5 | 1 955 | 44 | 1 938 | 36 | 1 939 | 31 |
50 | 8 | 49 | 44 | 1.13 | 0.071 5 | 0.003 7 | 1.409 0 | 0.100 0 | 0.145 6 | 0.003 4 | 971 | 99 | 893 | 42 | 876 | 19 |
51 | 5 | 26 | 35 | 0.75 | 0.073 3 | 0.003 3 | 1.321 5 | 0.089 0 | 0.137 6 | 0.003 7 | 1 022 | 86 | 855 | 39 | 831 | 21 |
53 | 17 | 23 | 43 | 0.53 | 0.120 7 | 0.002 5 | 5.693 4 | 0.207 2 | 0.346 8 | 0.006 6 | 1 967 | 36 | 1 930 | 31 | 1 919 | 31 |
54 | 9 | 91 | 166 | 0.55 | 0.059 2 | 0.003 0 | 0.382 9 | 0.025 8 | 0.047 9 | 0.000 9 | 574 | 109 | 329 | 19 | 302 | 6 |
56 | 8 | 77 | 170 | 0.45 | 0.055 2 | 0.003 2 | 0.333 2 | 0.026 1 | 0.045 1 | 0.001 1 | 422 | 125 | 292 | 20 | 284 | 7 |
57 | 52 | 127 | 121 | 1.05 | 0.113 9 | 0.002 3 | 5.324 8 | 0.180 4 | 0.340 7 | 0.005 5 | 1 863 | 36 | 1 873 | 29 | 1 890 | 27 |
58 | 24 | 49 | 59 | 0.84 | 0.114 1 | 0.002 9 | 5.272 1 | 0.203 0 | 0.337 7 | 0.005 3 | 1 865 | 44 | 1 864 | 33 | 1 876 | 26 |
60 | 97 | 40 | 280 | 0.14 | 0.116 6 | 0.002 3 | 5.332 3 | 0.185 2 | 0.334 8 | 0.006 1 | 1 904 | 35 | 1 874 | 30 | 1 862 | 29 |
62 | 18 | 92 | 355 | 0.26 | 0.057 1 | 0.003 0 | 0.386 1 | 0.026 6 | 0.049 4 | 0.000 9 | 496 | 113 | 332 | 20 | 311 | 6 |
64 | 36 | 42 | 477 | 0.09 | 0.060 5 | 0.001 4 | 0.648 5 | 0.021 6 | 0.078 2 | 0.001 0 | 620 | 47 | 508 | 13 | 485 | 6 |
65 | 10 | 103 | 180 | 0.57 | 0.055 3 | 0.003 5 | 0.361 4 | 0.030 5 | 0.048 0 | 0.001 2 | 426 | 136 | 313 | 23 | 302 | 7 |
66 | 104 | 77 | 278 | 0.28 | 0.119 9 | 0.001 8 | 5.757 2 | 0.136 0 | 0.347 9 | 0.003 8 | 1 955 | 25 | 1 940 | 20 | 1 925 | 18 |
67 | 49 | 404 | 649 | 0.62 | 0.056 7 | 0.002 2 | 0.526 8 | 0.028 0 | 0.067 3 | 0.001 1 | 478 | 84 | 430 | 19 | 420 | 7 |
68 | 29 | 550 | 604 | 0.91 | 0.056 6 | 0.002 4 | 0.314 2 | 0.017 5 | 0.040 7 | 0.000 6 | 476 | 92 | 277 | 14 | 257 | 4 |
69 | 107 | 221 | 258 | 0.85 | 0.119 2 | 0.002 2 | 5.576 1 | 0.154 1 | 0.338 3 | 0.003 6 | 1 944 | 32 | 1 912 | 24 | 1 878 | 17 |
70 | 70 | 63 | 143 | 0.44 | 0.147 9 | 0.002 7 | 8.825 4 | 0.256 7 | 0.432 6 | 0.005 8 | 2 322 | 30 | 2 320 | 27 | 2 317 | 26 |
71 | 16 | 168 | 293 | 0.57 | 0.052 9 | 0.002 1 | 0.359 6 | 0.019 7 | 0.050 1 | 0.000 9 | 324 | 86 | 312 | 15 | 315 | 6 |
72 | 10 | 64 | 112 | 0.58 | 0.064 6 | 0.002 9 | 0.697 8 | 0.043 9 | 0.079 3 | 0.001 6 | 762 | 93 | 537 | 26 | 492 | 10 |
73 | 89 | 42 | 242 | 0.17 | 0.118 7 | 0.001 7 | 5.787 4 | 0.139 3 | 0.353 1 | 0.004 2 | 1 936 | 25 | 1 945 | 21 | 1 950 | 20 |
74 | 27 | 22 | 66 | 0.34 | 0.125 7 | 0.002 0 | 6.325 3 | 0.177 5 | 0.366 8 | 0.005 7 | 2 039 | 27 | 2 022 | 25 | 2 014 | 27 |
75 | 11 | 26 | 27 | 0.95 | 0.103 6 | 0.002 8 | 4.564 3 | 0.203 9 | 0.327 2 | 0.006 9 | 1 690 | 49 | 1 743 | 37 | 1 825 | 33 |
76 | 109 | 187 | 211 | 0.89 | 0.150 3 | 0.002 0 | 8.587 7 | 0.194 8 | 0.414 6 | 0.005 0 | 2 350 | 21 | 2 295 | 21 | 2 236 | 23 |
78 | 68 | 174 | 91 | 1.91 | 0.173 5 | 0.002 3 | 11.693 2 | 0.275 2 | 0.490 4 | 0.006 2 | 2 592 | 22 | 2 580 | 22 | 2 573 | 27 |
80 | 18 | 200 | 190 | 1.05 | 0.056 3 | 0.002 4 | 0.596 9 | 0.032 7 | 0.076 9 | 0.001 1 | 462 | 91 | 475 | 21 | 478 | 7 |
表3 会泽地区须家河组砂岩碎屑锆石LA-ICP-MS U-Pb数据表
Table 3 Detrital zircon U-Pb isotopic data from the Xujiahe Formation in Huize area
点号 | 元素含量/10-6 | Th/U | 同位素比值及误差 | 同位素年龄及误差/Ma | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pb | Th | U | 207Pb/206Pb | 207Pb/235U | 206Pb/238U | 207Pb/206Pb | 207Pb/235U | 206Pb/238U | ||||||||
比值 | 1σ | 比值 | 1σ | 比值 | 1σ | 比值 | 1σ | 比值 | 1σ | 比值 | 1σ | |||||
2 | 7 | 35 | 43 | 0.81 | 0.075 7 | 0.004 6 | 1.448 3 | 0.123 7 | 0.142 5 | 0.004 0 | 1 087 | 117 | 909 | 51 | 859 | 23 |
3 | 86 | 117 | 196 | 0.59 | 0.125 1 | 0.001 7 | 6.678 8 | 0.163 8 | 0.385 6 | 0.005 2 | 2 030 | 23 | 2 070 | 22 | 2 103 | 24 |
4 | 19 | 49 | 48 | 1.01 | 0.109 3 | 0.002 4 | 4.855 2 | 0.172 0 | 0.323 8 | 0.005 5 | 1 787 | 37 | 1 795 | 30 | 1 808 | 27 |
5 | 12 | 83 | 144 | 0.57 | 0.058 5 | 0.002 1 | 0.626 5 | 0.032 6 | 0.079 0 | 0.001 4 | 547 | 76 | 494 | 20 | 490 | 9 |
6 | 11 | 63 | 135 | 0.47 | 0.059 8 | 0.003 3 | 0.604 2 | 0.043 9 | 0.074 4 | 0.001 5 | 595 | 114 | 480 | 28 | 463 | 9 |
7 | 16 | 109 | 101 | 1.08 | 0.065 9 | 0.002 6 | 1.174 4 | 0.065 6 | 0.129 0 | 0.002 5 | 804 | 78 | 789 | 31 | 782 | 14 |
8 | 27 | 62 | 59 | 1.05 | 0.124 2 | 0.002 6 | 6.312 2 | 0.220 5 | 0.370 1 | 0.006 4 | 2 018 | 35 | 2 020 | 31 | 2 030 | 30 |
9 | 27 | 55 | 55 | 0.99 | 0.136 0 | 0.002 6 | 7.573 0 | 0.255 6 | 0.404 9 | 0.007 5 | 2 176 | 31 | 2 182 | 30 | 2 192 | 35 |
10 | 129 | 186 | 341 | 0.55 | 0.117 1 | 0.001 8 | 5.570 4 | 0.148 5 | 0.343 8 | 0.004 9 | 1 912 | 26 | 1 912 | 23 | 1 905 | 23 |
11 | 36 | 54 | 55 | 0.98 | 0.164 1 | 0.003 2 | 11.888 2 | 0.389 4 | 0.524 2 | 0.008 6 | 2 499 | 31 | 2 596 | 31 | 2 717 | 36 |
12 | 29 | 53 | 68 | 0.77 | 0.124 9 | 0.002 6 | 6.292 6 | 0.214 6 | 0.365 9 | 0.006 0 | 2 027 | 35 | 2 017 | 30 | 2 010 | 28 |
13 | 17 | 109 | 99 | 1.09 | 0.074 7 | 0.003 1 | 1.388 9 | 0.081 8 | 0.136 3 | 0.002 7 | 1 061 | 80 | 884 | 35 | 823 | 15 |
16 | 81 | 178 | 180 | 0.99 | 0.122 0 | 0.002 5 | 6.154 5 | 0.194 6 | 0.362 8 | 0.005 0 | 1 986 | 34 | 1 998 | 28 | 1 995 | 24 |
19 | 22 | 71 | 90 | 0.79 | 0.083 2 | 0.002 1 | 2.433 9 | 0.097 8 | 0.213 9 | 0.003 9 | 1 273 | 46 | 1 253 | 29 | 1 250 | 21 |
20 | 10 | 151 | 175 | 0.87 | 0.053 5 | 0.003 7 | 0.329 3 | 0.029 9 | 0.045 9 | 0.001 1 | 348 | 150 | 289 | 23 | 289 | 7 |
21 | 23 | 28 | 59 | 0.48 | 0.118 5 | 0.002 3 | 5.575 1 | 0.189 8 | 0.341 8 | 0.006 2 | 1 934 | 33 | 1 912 | 29 | 1 896 | 30 |
22 | 39 | 48 | 58 | 0.82 | 0.182 1 | 0.002 6 | 13.047 8 | 0.361 9 | 0.522 7 | 0.009 2 | 2 672 | 22 | 2 683 | 26 | 2 711 | 39 |
23 | 36 | 65 | 52 | 1.23 | 0.1773 | 0.002 4 | 12.167 0 | 0.323 2 | 0.499 6 | 0.008 3 | 2 628 | 21 | 2 617 | 25 | 2 612 | 36 |
26 | 40 | 52 | 66 | 0.79 | 0.164 8 | 0.002 7 | 10.715 1 | 0.314 1 | 0.473 4 | 0.007 7 | 2 505 | 26 | 2 499 | 27 | 2 498 | 34 |
28 | 204 | 115 | 603 | 0.19 | 0.114 1 | 0.001 4 | 5.006 6 | 0.107 6 | 0.317 3 | 0.003 5 | 1 866 | 21 | 1 820 | 18 | 1 777 | 17 |
29 | 7 | 15 | 20 | 0.75 | 0.109 4 | 0.004 0 | 4.185 3 | 0.259 2 | 0.305 9 | 0.009 4 | 1 789 | 64 | 1 671 | 51 | 1 720 | 46 |
31 | 21 | 65 | 39 | 1.67 | 0.121 4 | 0.002 9 | 5.965 2 | 0.227 8 | 0.360 4 | 0.006 3 | 1 977 | 40 | 1 971 | 33 | 1 984 | 30 |
32 | 36 | 193 | 479 | 0.4 | 0.055 3 | 0.001 3 | 0.522 6 | 0.018 5 | 0.068 7 | 0.001 0 | 424 | 49 | 427 | 12 | 428 | 6 |
33 | 9 | 92 | 129 | 0.71 | 0.056 5 | 0.002 8 | 0.431 1 | 0.030 6 | 0.057 8 | 0.001 5 | 473 | 104 | 364 | 22 | 362 | 9 |
34 | 15 | 197 | 246 | 0.8 | 0.050 4 | 0.002 4 | 0.345 3 | 0.021 3 | 0.049 8 | 0.000 8 | 213 | 103 | 301 | 16 | 313 | 5 |
35 | 126 | 201 | 309 | 0.65 | 0.114 9 | 0.001 3 | 5.340 2 | 0.115 0 | 0.337 9 | 0.004 3 | 1 878 | 20 | 1 875 | 18 | 1 876 | 21 |
36 | 31 | 52 | 86 | 0.61 | 0.106 7 | 0.002 4 | 4.452 8 | 0.157 9 | 0.305 2 | 0.004 9 | 1 743 | 38 | 1 722 | 29 | 1 717 | 24 |
37 | 7 | 74 | 105 | 0.7 | 0.057 8 | 0.003 5 | 0.413 5 | 0.033 4 | 0.054 3 | 0.001 3 | 523 | 126 | 351 | 24 | 341 | 8 |
39 | 15 | 254 | 228 | 1.11 | 0.056 2 | 0.002 8 | 0.381 0 | 0.025 2 | 0.051 | 0.000 9 | 459 | 106 | 328 | 19 | 321 | 6 |
40 | 64 | 100 | 105 | 0.95 | 0.162 5 | 0.003 0 | 10.412 5 | 0.350 3 | 0.464 1 | 0.008 9 | 2 482 | 29 | 2 472 | 31 | 2 458 | 39 |
41 | 515 | 438 | 1 371 | 0.32 | 0.114 6 | 0.001 3 | 5.444 2 | 0.105 6 | 0.343 7 | 0.003 6 | 1 874 | 19 | 1 892 | 17 | 1 904 | 17 |
42 | 252 | 96 | 515 | 0.19 | 0.162 0 | 0.001 7 | 9.989 7 | 0.187 5 | 0.446 2 | 0.004 5 | 2 477 | 17 | 2 434 | 17 | 2 378 | 20 |
43 | 9 | 19 | 27 | 0.69 | 0.107 5 | 0.003 4 | 4.254 9 | 0.209 7 | 0.297 1 | 0.006 4 | 1 757 | 54 | 1 685 | 41 | 1 677 | 32 |
44 | 35 | 37 | 101 | 0.37 | 0.107 5 | 0.002 4 | 4.784 3 | 0.158 7 | 0.322 4 | 0.004 2 | 1 757 | 38 | 1 782 | 28 | 1 801 | 20 |
45 | 55 | 160 | 126 | 1.27 | 0.114 9 | 0.002 0 | 5.283 9 | 0.152 6 | 0.333 3 | 0.004 5 | 1 879 | 30 | 1 866 | 25 | 1 854 | 22 |
47 | 53 | 53 | 93 | 0.57 | 0.166 9 | 0.002 2 | 11.024 2 | 0.268 3 | 0.480 1 | 0.006 7 | 2 526 | 21 | 2 525 | 23 | 2 528 | 29 |
48 | 74 | 146 | 185 | 0.79 | 0.113 6 | 0.001 9 | 5.169 2 | 0.148 4 | 0.329 3 | 0.004 8 | 1 857 | 29 | 1 848 | 24 | 1 835 | 23 |
49 | 17 | 45 | 39 | 1.14 | 0.119 9 | 0.003 1 | 5.744 6 | 0.237 6 | 0.350 9 | 0.006 5 | 1 955 | 44 | 1 938 | 36 | 1 939 | 31 |
50 | 8 | 49 | 44 | 1.13 | 0.071 5 | 0.003 7 | 1.409 0 | 0.100 0 | 0.145 6 | 0.003 4 | 971 | 99 | 893 | 42 | 876 | 19 |
51 | 5 | 26 | 35 | 0.75 | 0.073 3 | 0.003 3 | 1.321 5 | 0.089 0 | 0.137 6 | 0.003 7 | 1 022 | 86 | 855 | 39 | 831 | 21 |
53 | 17 | 23 | 43 | 0.53 | 0.120 7 | 0.002 5 | 5.693 4 | 0.207 2 | 0.346 8 | 0.006 6 | 1 967 | 36 | 1 930 | 31 | 1 919 | 31 |
54 | 9 | 91 | 166 | 0.55 | 0.059 2 | 0.003 0 | 0.382 9 | 0.025 8 | 0.047 9 | 0.000 9 | 574 | 109 | 329 | 19 | 302 | 6 |
56 | 8 | 77 | 170 | 0.45 | 0.055 2 | 0.003 2 | 0.333 2 | 0.026 1 | 0.045 1 | 0.001 1 | 422 | 125 | 292 | 20 | 284 | 7 |
57 | 52 | 127 | 121 | 1.05 | 0.113 9 | 0.002 3 | 5.324 8 | 0.180 4 | 0.340 7 | 0.005 5 | 1 863 | 36 | 1 873 | 29 | 1 890 | 27 |
58 | 24 | 49 | 59 | 0.84 | 0.114 1 | 0.002 9 | 5.272 1 | 0.203 0 | 0.337 7 | 0.005 3 | 1 865 | 44 | 1 864 | 33 | 1 876 | 26 |
60 | 97 | 40 | 280 | 0.14 | 0.116 6 | 0.002 3 | 5.332 3 | 0.185 2 | 0.334 8 | 0.006 1 | 1 904 | 35 | 1 874 | 30 | 1 862 | 29 |
62 | 18 | 92 | 355 | 0.26 | 0.057 1 | 0.003 0 | 0.386 1 | 0.026 6 | 0.049 4 | 0.000 9 | 496 | 113 | 332 | 20 | 311 | 6 |
64 | 36 | 42 | 477 | 0.09 | 0.060 5 | 0.001 4 | 0.648 5 | 0.021 6 | 0.078 2 | 0.001 0 | 620 | 47 | 508 | 13 | 485 | 6 |
65 | 10 | 103 | 180 | 0.57 | 0.055 3 | 0.003 5 | 0.361 4 | 0.030 5 | 0.048 0 | 0.001 2 | 426 | 136 | 313 | 23 | 302 | 7 |
66 | 104 | 77 | 278 | 0.28 | 0.119 9 | 0.001 8 | 5.757 2 | 0.136 0 | 0.347 9 | 0.003 8 | 1 955 | 25 | 1 940 | 20 | 1 925 | 18 |
67 | 49 | 404 | 649 | 0.62 | 0.056 7 | 0.002 2 | 0.526 8 | 0.028 0 | 0.067 3 | 0.001 1 | 478 | 84 | 430 | 19 | 420 | 7 |
68 | 29 | 550 | 604 | 0.91 | 0.056 6 | 0.002 4 | 0.314 2 | 0.017 5 | 0.040 7 | 0.000 6 | 476 | 92 | 277 | 14 | 257 | 4 |
69 | 107 | 221 | 258 | 0.85 | 0.119 2 | 0.002 2 | 5.576 1 | 0.154 1 | 0.338 3 | 0.003 6 | 1 944 | 32 | 1 912 | 24 | 1 878 | 17 |
70 | 70 | 63 | 143 | 0.44 | 0.147 9 | 0.002 7 | 8.825 4 | 0.256 7 | 0.432 6 | 0.005 8 | 2 322 | 30 | 2 320 | 27 | 2 317 | 26 |
71 | 16 | 168 | 293 | 0.57 | 0.052 9 | 0.002 1 | 0.359 6 | 0.019 7 | 0.050 1 | 0.000 9 | 324 | 86 | 312 | 15 | 315 | 6 |
72 | 10 | 64 | 112 | 0.58 | 0.064 6 | 0.002 9 | 0.697 8 | 0.043 9 | 0.079 3 | 0.001 6 | 762 | 93 | 537 | 26 | 492 | 10 |
73 | 89 | 42 | 242 | 0.17 | 0.118 7 | 0.001 7 | 5.787 4 | 0.139 3 | 0.353 1 | 0.004 2 | 1 936 | 25 | 1 945 | 21 | 1 950 | 20 |
74 | 27 | 22 | 66 | 0.34 | 0.125 7 | 0.002 0 | 6.325 3 | 0.177 5 | 0.366 8 | 0.005 7 | 2 039 | 27 | 2 022 | 25 | 2 014 | 27 |
75 | 11 | 26 | 27 | 0.95 | 0.103 6 | 0.002 8 | 4.564 3 | 0.203 9 | 0.327 2 | 0.006 9 | 1 690 | 49 | 1 743 | 37 | 1 825 | 33 |
76 | 109 | 187 | 211 | 0.89 | 0.150 3 | 0.002 0 | 8.587 7 | 0.194 8 | 0.414 6 | 0.005 0 | 2 350 | 21 | 2 295 | 21 | 2 236 | 23 |
78 | 68 | 174 | 91 | 1.91 | 0.173 5 | 0.002 3 | 11.693 2 | 0.275 2 | 0.490 4 | 0.006 2 | 2 592 | 22 | 2 580 | 22 | 2 573 | 27 |
80 | 18 | 200 | 190 | 1.05 | 0.056 3 | 0.002 4 | 0.596 9 | 0.032 7 | 0.076 9 | 0.001 1 | 462 | 91 | 475 | 21 | 478 | 7 |
图8 会泽须家河组砂岩碎屑岩锆石U-Pb谐和曲线((a))和直方图及相对频率图((b)、(c)、(d))
Fig.8 Concordia plot (a),histograms and relative probability plots ((b), (c) and (d)) of detrital zircon U-Pb ages of sandstones in the Huize area
图9 须家河组和飞仙关组碎屑锆石均一化相对年龄概率图(样品10HLS2引自张英利等[75],2016)
Fig.9 Normalized probability plots for Xujiahe Formation and Feixianguan Formation from Huize area
[1] | 张兵, 王绪本, 吴朝容, 等. 大川中地区须家河组层序-岩相古地理研究[J]. 现代地质, 2013, 27(6):1348-1355. |
[2] | 林良彪, 陈洪德, 姜平, 等. 川西前陆盆地须家河组沉积相及岩相古地理演化[J]. 成都理工大学学报(自然科学版), 2006, 33(4):376-383. |
[3] | 马永生, 陈洪德, 王国力. 中国南方构造-层序岩相古地理图集 (震旦纪-新近纪)[M]. 北京: 科学出版社, 2009:144-161. |
[4] | 李熙喆, 张满郎, 谢武仁, 等. 川西南地区上三叠统须家河组沉积相特征[J]. 天然气工业, 2008, 28(2):54-57. |
[5] | 郑荣才, 朱如凯, 翟文亮, 等. 川西类前陆盆地晚三叠世须家河期构造演化及层序充填样式[J]. 中国地质, 2008, 35(2):246-255. |
[6] | 郑荣才, 戴朝成, 朱如凯, 等. 四川类前陆盆地须家河组层序-岩相古地理特征[J]. 地质论评, 2009, 55(4):484-495. |
[7] | 郑荣才, 戴朝成, 罗清林, 等. 四川类前陆盆地上三叠统须家河组沉积体系[J]. 天然气工业, 2011, 31(9):16-24. |
[8] | 刘柳红, 朱如凯, 罗平, 等. 川中地区须五段-须六段浅水三角洲沉积特征与模式[J]. 现代地质, 2009, 23(4):667-675. |
[9] |
ZHU R K, ZHAO X, LIU L H, et al. Depositional system and favorable reservoir distribution of Xujiahe Formation in Sichuan basin[J]. Petroleum Exploration and Development, 2009, 36(1): 46-55.
DOI URL |
[10] | 谭聪, 于炳松, 阮壮, 等. 四川盆地上三叠统须家河组高分辨率层序地层研究[J]. 现代地质, 2017, 31(2):290-301. |
[11] |
DENG B, LIU S G, JANSA L, et al. Sedimentary record of Late Triassic transpressional tectonics of the Longmenshan thrust belt, SW China[J]. Journal of Asian Earth Sciences, 2012, 48: 43-55.
DOI URL |
[12] |
LI Y L, SHAO L Y, ERIKSSON K A, et al. Linked sequence stratigraphy and tectonics in the Sichuan continental foreland basin, Upper Triassic Xujiahe Formation, southwest China[J]. Journal of Asian Earth Sciences, 2014, 88: 116-136.
DOI URL |
[13] |
MENG Q R, WANG E Q, HU J M. Mesozoic sedimentary evolution of the northwest Sichuan basin: Implication for continued clockwise rotation of the South China block[J]. Geological Society of America Bulletin, 2005, 117: 396-410.
DOI URL |
[14] | 林良彪, 陈洪德, 翟常博, 等. 四川盆地西部须家河组砂岩组分及其古地理探讨[J]. 石油实验地质, 2006, 28(6):511-517. |
[15] | 邓飞, 贾东, 罗良, 等. 晚三叠世松潘甘孜和川西前陆盆地的物源对比:构造演化和古地理变迁的线索[J]. 地质论评, 2008, 54(4):561-573. |
[16] | 李勇, 贺佩, 颜照坤, 等. 晚三叠世龙门山前陆盆地动力学分析[J]. 成都理工大学学报(自然科学版), 2010, 37(4):401-411. |
[17] | 刘焕, 彭军, 李丽娟, 等. 川西坳陷中段上三叠统须家河组砂岩特征及物源分析[J]. 中国地质, 2012, 39(5):1271-1279. |
[18] | 于冬冬, 汤良杰, 余一欣, 等. 川西和川东北地区差异构造演化及其对陆相层系天然气气藏的影响[J]. 现代地质, 2016, 30(5):1085-1095. |
[19] | 赵正望, 谢继容, 吴长江, 等. 川西北地区须家河组碎屑组分特征与物源分析[J]. 天然气勘探与开发, 2012, 35(4):6-11. |
[20] | 戴朝成, 郑荣才, 任军平, 等. 四川前陆盆地上三叠统须家河组物源区分析及其地质意义[J]. 吉林大学学报(地球科学版), 2014, 44(4):1085-1096. |
[21] |
LU R Q, HE D F, JOHN S, et al. Structural model of the central Longmen Shan thrusts using seismic reflection profiles: Implications for the sediments and deformations since the Mesozoic[J]. Tectonophysics, 2014, 630: 43-53.
DOI URL |
[22] | 陈斌, 李勇, 王伟明, 等. 晚三叠世龙门山前陆盆地须家河组物源及构造背景分析[J]. 地质学报, 2016, 90(5):857-872. |
[23] | 施振生, 王秀芹, 吴长江. 四川盆地上三叠统须家河组重矿物特征及物源区意义[J]. 天然气地球科学, 2011, 22(4):618-627. |
[24] |
TSIKOURAS B, PE-PIPER G, PIPER D J W, et al. Varietal heavy mineral analysis of sediment provenance, Lower Cretaceous Scotian Basin, eastern Canada[J]. Sedimentary Geology, 2011, 237: 150-165.
DOI URL |
[25] |
VON EYNATTEN H, DUNKL I. Assessing the sediment factory: The role of single grain analysis[J]. Earth-Science Reviews, 2012, 115: 97-120.
DOI URL |
[26] |
KOWAL-LINKA M, STAWIKOWSKI W. Garnet and tourmaline as provenance indicators of terrigenous material in epicontinental carbonates (Middle Triassic, S Poland)[J]. Sedimentary Geology, 2013, 291: 27-47.
DOI URL |
[27] | 张英志, 林畅松, 高志勇, 等. 塔西南坳陷早白垩世物源体系和沉积古地理分析[J]. 现代地质, 2014, 28(4):791-798. |
[28] |
FEDO C M, SRCOMBE K N, RAINBIRD R H. Detrital zircon analysis of the sedimentary record[J]. Reviews in Mineralogy and Geochemistry, 2003, 53: 277-303.
DOI URL |
[29] |
LEIER A L, KAPP P, GEHRELS G E, et al. Detrital zircon geochronology of Carboniferous-Cretaceous strata in the Lhasa terrane, southern Tibet[J]. Basin Research, 2007, 19: 361-378.
DOI URL |
[30] | 谷从楠, 周志广, 张有宽, 等. 内蒙古白乃庙地区白音都西群的碎屑锆石年龄及其构造意义[J]. 现代地质, 2012, 26(1):1-9. |
[31] | 尹福光, 王冬兵, 孙志明, 等. 哥伦比亚超大陆在扬子陆块西缘的探秘[J]. 沉积与特提斯地质, 2012, 32(3):31-40. |
[32] | 王子正, 郭阳, 杨斌, 等. 扬子克拉通西缘1.73Ga非造山型花岗斑岩的发现及其地质意义[J]. 地质学报, 2013, 87(7):931-942. |
[33] | 郭阳, 王生伟, 孙晓明, 等. 扬子地台西南缘古元古代末的裂解事件——来自武定地区辉绿岩锆石U-Pb年龄和地球化学证据[J]. 地质学报, 2014, 88(9):1651-1665. |
[34] |
LI X H, LI Z X, ZHOU H W, et al. U-Pb zircon geochronology, geochemistry and Nd isotopic study of Neoproterozoic bimodal volcanic rocks in the Kangdian Rift of South China: Implications for the initial rifting of Rodinia[J]. Precambrian Research, 2002, 113: 135-154.
DOI URL |
[35] | 赵俊香, 陈岳龙, 李志红. 康定杂岩锆石SHRIMP U-Pb定年及其地质意义[J]. 现代地质, 2006, 20(3):378-385. |
[36] | 崔晓庄, 江新胜, 王剑, 等. 滇中新元古代澄江组层型剖面锆石U-Pb年代学及其地质意义[J]. 现代地质, 2013, 27(3):547-556. |
[37] | 程佳孝, 罗金海, 武昱东, 等. 滇东北下田坝花岗岩年代学、地球化学及其构造意义[J]. 地质学报, 2014, 88(3):337-346. |
[38] |
ZHAO J H, ZHOU M F. Geochemistry of Neoproterozoic mafic intrusions in the Panzhihua district (Sichuan Province, SW China): Implications for subduction-related metasomatism in the upper mantle[J]. Precambrian Research, 2007, 152: 27-47.
DOI URL |
[39] |
ZHAO X F, ZHOU M F, LI J W. Late Paleoproterozoic to Early Mesoproterozoic Dongchuan Group in Yunnan, SW China: Implications for tectonic evolution of the Yangtze Block[J]. Precambrian Research, 2010, 182: 57-69.
DOI URL |
[40] | 汪新伟, 沃玉进, 张荣强. 扬子克拉通南华纪—早古生代的构造-沉积旋回[J]. 现代地质, 2008, 22(4):525-533. |
[41] | 陈洪德, 张成弓, 黄福喜, 等. 中上扬子克拉通海西-印支期(泥盆纪-中三叠世)沉积层序充填过程与演化模式[J]. 岩石学报, 2011, 27(8):2281-2298. |
[42] |
FAN W M, WANG Y J, PENG T P, et al. Ar-Ar and U-Pb geochronology of Late Paleozoic basalts in western Guangxi and its constraints on the eruption age of Emeishan basalt magmatism[J]. Chinese Science Bulletin, 2004, 49: 2318-2327.
DOI URL |
[43] |
ZHONG H, ZHU W G, CHU Z Y, et al. SHRIMP U-Pb zircon geochronology, geochemistry, and Nd-Sr isotopic study of contrasting granites in the Emeishan large igneous province, SW China[J]. Chemical Geology, 2007, 236: 112-133.
DOI URL |
[44] |
SHELLNUTT J G, ZHOU M F, YAN D P, et al. Longevity of the Permian Emeishan mantle plume (SW China): 1 Ma, 8 Ma or 18 Ma?[J]. Geological Magazine, 2008, 145: 373-388.
DOI URL |
[45] |
XU Y G, LUO Z Y, HUANG X L, et al. Zircon U-Pb and Hf isotope constraints on crustal melting associated with the Emeishan mantle plume[J]. Geochimica et Cosmochimica Acta, 2008, 72: 3084-3104.
DOI URL |
[46] | VAN LOON A J, MANGE M A. ‘In situ’ dissolution of heavy minerals through extreme weathering, and the application of the surviving assemblages and their dissolution characteristics to correlation of Dutch and German silver sands[J]. Developments in Sedimentology, 2007, 58: 189-213. |
[47] |
HENRY D J, NOVK M, HAWTHORNE F C, et al. Nomenclature of the tourmaline-supergroup minerals[J]. American Mineralogist, 2011, 96: 895-913.
DOI URL |
[48] | HENRY D J, GUIDOTTI C V. Tourmaline as a petrogenetic indicator mineral: an example from the staurolite-grade metapelites of NW Maine[J]. American Mineralogist, 1985, 70: 1-15. |
[49] | 李怀坤, 耿建珍, 郝爽, 等. 用激光烧蚀多接收器等离子体质谱仪(LA-MC-ICPMS)测定锆石U-Pb同位素年龄的研究[J]. 矿物学报, 2009, 29(增刊):600-601. |
[50] |
JACKSON S E, PEARSON N J, GRIFFIN W L, et al. The application of laser ablation-inductively coupled plasma-mass spectrometry to in situ U-Pb zircon geochronology[J]. Chemical Geology, 2004, 211: 47-69.
DOI URL |
[51] |
LIU Y S, GAO S, HU Z C, et al. Continental and oceanic crust recycling-induced melt-peridotite interactions in the Trans-North China Orogen: U-Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths[J]. Journal of Petrology, 2009, 51: 537-571.
DOI URL |
[52] |
ANDERSON T. Correction of common lead in U-Pb analyses that do not report 204Pb[J]. Chemical Geology, 2002, 192: 59-79.
DOI URL |
[53] | LUDWIG K R. User’s Manual for Isoplot 3.0: Geochronological Toolkit for Microsoft Excel[M]. Berkeley, C A: Berkeley Geochronology Center Special Publication, 2003:1-70. |
[54] |
GEHERELS G E, JOHNSSON M J, HOWELL D G. Detrital zircon geochronology of the Adams argillite and Nation River Formation, East-Central Alaska, U.S.A.[J]. Journal of Sedimentary Research, 1999, 69: 135-144.
DOI URL |
[55] |
SIRCOMBE K N. Tracing provenance through the isotope ages of littoral and sedimentary detrital zircon, eastern Australia[J]. Sedimentary Geology, 1999, 124: 47-67.
DOI URL |
[56] |
NELSON J, GEHRELS G E. Detrital zircon geochronology and provenance of the southeastern Yukon-Tanana terrane[J]. Canadian Journal of Earth Sciences, 2007, 44: 297-316.
DOI URL |
[57] |
KALSBEEK F, FREI D, AFFATON P. Constraints on provenance, stratigraphic correlation and structural context of the Volta basin, Ghana, from detrital zircon geochronology: An Amazonian connection?[J]. Sedimentary Geology, 2008, 212: 86-95.
DOI URL |
[58] |
NAIPAUER M, VUJOVICH G I, CINGOLANI C A, et al. Detrital zircon analysis from the Neoproterozoic-Cambrian sedimentary cover (Cuyania terrane), Sierra de Pie de Palo, Argentina: Evidence of a rift and passive margin system?[J]. Journal of South American Earth Sciences, 2010, 29: 306-326.
DOI URL |
[59] | 王丹丹, 李宝龙, 朱德全, 等. 滇东南府君山地区变质锆石U-Pb年代学及其构造意义[J]. 地质学报, 2015, 89(10):1718-1734. |
[60] |
ZHAO X F, ZHOU M F, LI J W, et al. Association of Neoproterozoic A-and I-type granites in South China: Implications for generation of A-type granites in a subduction-related environment[J]. Chemical Geology, 2008, 257: 1-15.
DOI URL |
[61] | 朱华平, 范文玉, 周邦国, 等. 论东川地区前震旦系地层层序:来自锆石SHRIMP及LA-ICP-MS测年的证据[J]. 高校地质学报, 2011, 17(9):452-461. |
[62] | 王冬兵, 尹福光, 孙志明, 等. 扬子陆块西缘古元古代基性侵入岩LA-ICP-MS锆石U-Pb年龄和Hf同位素及其地质意义[J]. 地质通报, 2013, 32(4):617-630. |
[63] | 牛新生, 冯常茂, 刘进. 黔中隆起的形成时间及形成机制探讨[J]. 海相油气地质, 2007, 12(2):46-50. |
[64] | 杨长清, 岳全玲, 曹波. 黔中隆起及其周缘地区下古生界油气勘探前景与方向[J]. 现代地质, 2008, 22(4):558-566. |
[65] | 齐有强, 胡瑞忠, 张海, 等. 贵州西北部基性侵入岩锆石U-Pb年代学、岩石地球化学特征及铅锌成矿意义[J]. 地质学报, 2016, 90(5):933-949. |
[66] | 张旗, 钱青, 王焰, 等. 扬子地块西南缘晚古生代基性岩浆岩的性质与古特提斯洋的演化[J]. 岩石学报, 1999, 15(4):576-583. |
[67] | 宋谢炎, 侯增谦, 汪云亮, 等. 晚古生代-早古生代扬子板块西缘的构造-岩浆活动[J]. 地质论评, 1999, 45(增刊):868-871. |
[68] | 潘锦坡, 张达, 阙朝阳, 等. 滇东南老城坡片麻状花岗岩地球化学特征、锆石U-Pb年龄及其意义[J]. 矿物岩石地球化学通报, 2015, 34(4):795-803. |
[69] | 王冬兵, 孙志明, 尹福光, 等. 扬子地块西缘河口群的时代:来自火山岩锆石LA-ICP-MS U-Pb年龄的证据[J]. 地层学杂志, 2012, 36(3):630-635. |
[70] | 江新胜, 王剑, 崔晓庄, 等. 滇中新元古代澄江组锆石SHRIMP U-Pb年代学研究及其地质意义[J]. 中国科学:地球科学, 2012, 42(10):1496-1507. |
[71] | 卓皆文, 江新胜, 王剑, 等. 华南扬子古大陆西缘新元古代康滇裂谷盆地的开启时间与充填样式[J]. 中国科学:地球科学, 2013, 43(12):1952-1963. |
[72] | 邓新, 杨坤光, 刘彦良, 等. 黔中隆起性质及其构造演化[J]. 地学前缘, 2010, 17(3):79-89. |
[73] | 熊国庆, 江新胜, 崔晓庄, 等. 扬子西缘元古宙峨边群烂包坪组地层归属及其锆石SHRIMPU-Pb年代学证据[J]. 地学前缘, 2013, 20(4):350-360. |
[74] | GEHRELS G, KAPP P, DECELLES P, et al. Detrital zircon geochronology of pre-Tertiary strata in the Tibetan-Himalayan orogen[J]. Tectonics, 2011, 30: TC5016. |
[75] | 张英利, 王宗起, 王刚, 等. 上扬子会泽地区早三叠世飞仙关组砂岩物源特征:来自重矿物铬尖晶石和和碎屑锆石的限定[J]. 地质论评, 2016, 62(1):54-72. |
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