新疆准噶尔与华南湘中法门期碳同位素特征的对比研究

doi:10.13209/j.0479-8023.2017.055

摘要/Abstract

摘要：

针对新疆准噶尔盆地西北缘洪古勒楞组下段是否存在弗拉-法门阶界线的问题, 对比研究布龙果尔剖面该段地层以及湖南中部锡矿山剖面上泥盆统法门阶中下部碳酸盐岩的碳同位素特征, 并结合已有的生物地层学证据, 重新讨论洪古勒楞组下段的时代。结果表明, 布龙果尔剖面洪古勒楞组下段碳同位素的变化趋势与国内外诸多典型剖面弗拉-法门期之交的δ¹³C偏移明显不同: 未见到显著正偏移; 布龙果尔剖面δ¹³C在0~1‰范围内变化, 小于国际上目前已知的弗拉-法门期之交δ¹³C正偏移的幅度(2‰~3‰)。布龙果尔剖面洪古勒楞组下段可能不存在弗拉期地层, 甚至可能缺失法门阶底部(牙形石Pa. triangularis带)。法门早中期, 布龙果尔剖面碳同位素曲线可与湖南锡矿山剖面同时期地层进行较好的对比, 分为3个阶段: 2个完整的正偏—负偏旋回以及之上的小幅正偏。主量元素特征表明, 布龙果尔剖面第3-1层的下半部受陆源物质影响较大, 推测可能与区域构造活动变强烈有关。

关键词: 准噶尔, 湘中, 晚泥盆世, 法门期, 碳同位素

Abstract:

In order to clarify the position of the Frasnian/Famennian (F/F) boundary in the Lower Member of the Hongguleleng Formation of northwestern Junggar Basin, Xinjiang, carbon isotope characters were comparatively studied for the carbonates from the Lower Member of this formation in the Bulongguoer section of Junggar and the interval (lower-middle Famennian of the Upper Devonian) at the Xikuangshan section of central Hunan. The age of the Lower Member of the Hongguleleng Formation is re-investigated, on the basis of its integrative biostrati-graphical evidence, carbon isotope features, and a comparison with carbon isotope data from the Xikuangshan section. The carbon isotopic trend from the Lower Member of the Hongguleleng Formation does not show any prominent positive excursion and is distinctly different from the δ¹³C oscillation pattern across the F/F boundary recorded in several typical sections around the world; the δ¹³C values at Bulongguoer vary from 0 to 1‰, which is lower in amplitude than the currently known positive shift (2‰-3‰) across the F/F boundary in the world. The Lower Member of the Hongguleleng Formation probably may not contain Frasnian deposits, or even lacks the basal part of the Famennian (Pa. triangularis conodont Zone). For the early-middle Famennian interval of the studied sections, the carbon isotope trend seems to be well comparable; and this trend can be divided into three phases: two positive-negative oscillation cycles, followed by a weak positive excursion. The characteristics of major elements indicate that the lower part of Unit 3-1 in the Bulongguoer section was affected by terrigenous supply, which is inferred to probably be related to strong regional tectonic activities.

Key words: Junggar, central Hunan, Late Devonian, Famennian, carbon isotope

宗普, 马学平, 张美琼, 张宇波, 吕丹. 新疆准噶尔与华南湘中法门期碳同位素特征的对比研究[J]. 北京大学学报自然科学版, 2017, 53(5): 843-861.

Pu ZONG, Xueping MA, Meiqiong ZHANG, Yubo ZHANG, Dan LÜ. Comparative Study of Famennian Carbon Isotope Characteristics of Junggar, Xinjiang and Central Hunan, South China[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2017, 53(5): 843-861.

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链接本文: https://xbna.pku.edu.cn/CN/10.13209/j.0479-8023.2017.055

https://xbna.pku.edu.cn/CN/Y2017/V53/I5/843

图/表 11

参考文献 56

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样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰	样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰
L10/7.9	7.90	0.2	-8.1	11L40C	154.37	-0.2	-7.2
L11	8.90	-0.6	-8.8	11L41C	156.77	-0.6	-7.7
L12/0.7-0.8	9.95~10.05	0.4	-8.9	11L42C	158.62	-0.3	-6.7
L13/t10	23.85	-0.4	-7.1	11L43C	161.48	-0.2	-7.2
L15/1.7	26.40	0.1	-8.0	11L44C	164.74	-0.4	-7.4
L17/0.3	27.75	-0.7	-9.2	11L45C	168.23	-0.2	-7.0
L20/1.7-2.0	31.70~32.00	-1.2	-7.9	11L46C	170.70	-0.2	-7.3
L20/2.6	32.60	-1.3	-8.3	11L47C	174.35	-0.6	-6.8
L21	33.50	-1.6	-8.7	11L48C	187.53	-0.3	-7.3
L21/1.5	35.00	-1.0	-7.8	11L49C	191.25	-0.1	-7.4
L22/0.05	36.35	-0.6	-7.7	11L50C	194.25	0.1	-7.2
L22/0.6	36.90	-0.7	-7.9	11L51C	197.25	0.3	-7.0
11L1C	39.80	0.5	-9.4	11L28C	200.25	0.1	-8.2
11L2C	46.50	1.4	-9.2	11L29C	204.85	0.3	-7.4
11L3C	51.35	1.0	-8.5	11L30C	211.17	-0.2	-7.6
11L4C	54.40	0.8	-8.6	11L31C	214.17	-0.6	-7.5
11L5C	57.60	1.1	-8.7	11L32C	216.02	-0.6	-7.4
11L6C	60.60	0.9	-8.9	11L33C	218.52	-0.2	-7.7
11L7C	64.30	0.5	-8.9	11L34C	221.32	-0.1	-7.7
11L8C	69.34	0.1	-8.6	11L35C	225.02	-0.1	-8.0
11L9C	73.72	-0.6	-8.6	11L36C	227.91	-0.1	-8.3
11L10C	88.38	-1.2	-8.1	11L37C	231.41	-0.2	-8.0
11L11C	92.85	0.1	-7.2	11L38C	245.48	-0.3	-8.1
11L12C	98.91	0.6	-7.7	11L52C	250.98	-0.3	-8.4
11L13C	101.91	0.5	-7.5	11L53C	253.98	-0.8	-8.3
11L14C	103.91	0.5	-8.0	11L56C	258.99	-0.7	-8.4
11L15C	106.91	-0.3	-7.4	11L54C	265.84	-2.1	-8.4
11L16C	109.91	0.8	-7.5	11L55C	267.84	-2.1	-7.9
11L17C	112.91	1.0	-7.4	11L57C	272.34	-0.5	-8.6
11L18C	117.86	1.0	-7.4	11L58C	273.65	0.6	-8.4
11L19C	118.66	0.7	-8.3	11L59C	277.65	0.8	-8.0
11L20C	122.16	0.4	-7.4	11L60C	280.65	0.8	-8.5
11L21C	125.16	0.1	-7.5	11L61C	283.65	0.8	-8.3
11L22C	129.95	0.6	-7.5	11L62C	286.65	1.0	-7.5
11L23C	132.95	0.5	-7.7	11L63C	294.94	0.2	-9.4
11L24C	136.45	0.3	-7.4	11L64C	297.31	0.5	-8.3
11L25C	144.76	-0.1	-7.6	11L65C	299.97	0.2	-9.3
11L26C	147.76	-0.3	-7.4	11L66C	302.62	-0.3	-10.1
11L39C	150.37	-0.1	-7.2	11L67C	305.27	-1.0	-9.8
11L27C	150.51	-0.4	-6.9

样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰	样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰
L10/7.9	7.90	0.2	-8.1	11L40C	154.37	-0.2	-7.2
L11	8.90	-0.6	-8.8	11L41C	156.77	-0.6	-7.7
L12/0.7-0.8	9.95~10.05	0.4	-8.9	11L42C	158.62	-0.3	-6.7
L13/t10	23.85	-0.4	-7.1	11L43C	161.48	-0.2	-7.2
L15/1.7	26.40	0.1	-8.0	11L44C	164.74	-0.4	-7.4
L17/0.3	27.75	-0.7	-9.2	11L45C	168.23	-0.2	-7.0
L20/1.7-2.0	31.70~32.00	-1.2	-7.9	11L46C	170.70	-0.2	-7.3
L20/2.6	32.60	-1.3	-8.3	11L47C	174.35	-0.6	-6.8
L21	33.50	-1.6	-8.7	11L48C	187.53	-0.3	-7.3
L21/1.5	35.00	-1.0	-7.8	11L49C	191.25	-0.1	-7.4
L22/0.05	36.35	-0.6	-7.7	11L50C	194.25	0.1	-7.2
L22/0.6	36.90	-0.7	-7.9	11L51C	197.25	0.3	-7.0
11L1C	39.80	0.5	-9.4	11L28C	200.25	0.1	-8.2
11L2C	46.50	1.4	-9.2	11L29C	204.85	0.3	-7.4
11L3C	51.35	1.0	-8.5	11L30C	211.17	-0.2	-7.6
11L4C	54.40	0.8	-8.6	11L31C	214.17	-0.6	-7.5
11L5C	57.60	1.1	-8.7	11L32C	216.02	-0.6	-7.4
11L6C	60.60	0.9	-8.9	11L33C	218.52	-0.2	-7.7
11L7C	64.30	0.5	-8.9	11L34C	221.32	-0.1	-7.7
11L8C	69.34	0.1	-8.6	11L35C	225.02	-0.1	-8.0
11L9C	73.72	-0.6	-8.6	11L36C	227.91	-0.1	-8.3
11L10C	88.38	-1.2	-8.1	11L37C	231.41	-0.2	-8.0
11L11C	92.85	0.1	-7.2	11L38C	245.48	-0.3	-8.1
11L12C	98.91	0.6	-7.7	11L52C	250.98	-0.3	-8.4
11L13C	101.91	0.5	-7.5	11L53C	253.98	-0.8	-8.3
11L14C	103.91	0.5	-8.0	11L56C	258.99	-0.7	-8.4
11L15C	106.91	-0.3	-7.4	11L54C	265.84	-2.1	-8.4
11L16C	109.91	0.8	-7.5	11L55C	267.84	-2.1	-7.9
11L17C	112.91	1.0	-7.4	11L57C	272.34	-0.5	-8.6
11L18C	117.86	1.0	-7.4	11L58C	273.65	0.6	-8.4
11L19C	118.66	0.7	-8.3	11L59C	277.65	0.8	-8.0
11L20C	122.16	0.4	-7.4	11L60C	280.65	0.8	-8.5
11L21C	125.16	0.1	-7.5	11L61C	283.65	0.8	-8.3
11L22C	129.95	0.6	-7.5	11L62C	286.65	1.0	-7.5
11L23C	132.95	0.5	-7.7	11L63C	294.94	0.2	-9.4
11L24C	136.45	0.3	-7.4	11L64C	297.31	0.5	-8.3
11L25C	144.76	-0.1	-7.6	11L65C	299.97	0.2	-9.3
11L26C	147.76	-0.3	-7.4	11L66C	302.62	-0.3	-10.1
11L39C	150.37	-0.1	-7.2	11L67C	305.27	-1.0	-9.8
11L27C	150.51	-0.4	-6.9

样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰	样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰
XZ420C-1	0	0.7	-9.0	XZ427C-4	22.0	-0.4	-9.3
XZ420C-2	0.4	0.5	-9.9	XZ427C-1	22.5	-0.2	-8.7
XZ420C-3	2.0	0.7	-11.8	XZ427C-5	23.0	-0.1	-9.5
XZ420C-4	2.9	0.7	-10.1	XZ427C-6	24.0	0.5	-9.2
XZ421C-1	3.5	1.0	-10.6	XZ427C-7	25.0	0.8	-9.2
XZ421C-2	4.0	1.0	-10.1	XZ427C-2	25.8	0.7	-9.3
XZ421C-3	4.4	1.2	-9.8	XZ427C-8	26.8	0.6	-9.1
XZ421C-4	5.2	1.0	-11.9	XZ428C-2	27.4	0.8	-8.6
XZ421C-5	5.9	1.2	-11.2	XZ428C-3	27.8	0.6	-8.9
XZ422C-1	6.6	1.0	-11.1	XZ428C-4	28.8	0.4	-9.2
XZ422C-2	7.0	1.0	-11.2	XZ428C-5	29.0	0.2	-7.3
XZ422C-3	7.5	1.0	-10.0	XZ428C-1	29.5	0.3	-9.3
XZ422C-4	8.0	0.3	-12.7	XZ428C-6	30.0	0.3	-8.8
XZ422C-5	8.5	1.0	-10.2	XZ428C-7	31.0	0.3	-8.4
XZ422C-6	9.0	0.4	-13.1	XZ428C-8	32.0	0.3	-9.0
XZ423C-1	9.5	0.7	-10.0	XZ428C-9	33.0	0.4	-8.9
XZ423C-2	10.0	0.6	-11.3	XZ429C-1	33.1	0.5	-8.9
XZ423C-3	10.6	1.4	-10.1	XZ429C-2	34.4	0.3	-9.0
XZ423C-4	11.0	1.0	-9.7	XZ429C-3	34.9	0.2	-8.7
XZ423C-5	11.5	0.8	-10.4	XZ429C-4	35.4	0.3	-8.2
XZ423C-6	12.0	0.6	-9.9	XZ429C-5	37.5	0.3	-8.3
XZ424C-1	12.5	0.8	-9.5	XZ429C-6	38.0	-0.2	-8.5
XZ424C-2	13.5	0.7	-8.8	XZ430C-2	39.8	0.4	-9.5
XZ424C-3	14.0	0.8	-8.6	XZ430C-1	43.0	-0.1	-9.6
XZ424C-4	14.5	0.5	-11.1	XZ431C-2	45.1	0.5	-9.2
XZ424C-5	15.0	0.7	-9.0	XZ431C-1	48.3	0.1	-8.5
XZ425C-1	15.6	0.3	-10.7	XZ432C-2	51.6	0.3	-8.5
XZ425C-2	16.0	0.4	-10.7	XZ432C-1	54.8	0.2	-8.2
XZ425C-3	16.6	0.4	-10.7	XZ433C-1	58.6	0.1	-10.0
XZ425C-4	17.0	0.5	-9.2	XZ433C-2	61.1	0.6	-8.9
XZ425C-5	17.5	0.4	-9.2	XZ434C-1	63.1	0.3	-8.0
XZ425C-6	18.0	0.1	-8.8	XZ435C-1	70.8	0.4	-7.4
XZ426C-1	18.5	-0.1	-10.5	XZ435C-2	74.6	0.5	-8.2
XZ426C-4	19.0	0.2	-11.5	XZ436C-3	77.2	0.4	-8.4
XZ426C-2	19.5	-0.1	-9.2	XZ436C-1	78.0	0.5	-9.1
XZ426C-3	20.1	0.1	-8.1	XZ436C-2	79.8	0.6	-8.4
XZ426C-5	20.5	0.1	-9.7	XZ437C-1	82.9	0.2	-10.5
XZ426C-6	21.0	0.1	-8.9	XZ437C-2	85.8	1.0	-7.6
XZ427C-3	21.5	0.4	-9.0

样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰	样品号	层位/m	δ¹³C/‰	δ¹⁸O/‰
XZ420C-1	0	0.7	-9.0	XZ427C-4	22.0	-0.4	-9.3
XZ420C-2	0.4	0.5	-9.9	XZ427C-1	22.5	-0.2	-8.7
XZ420C-3	2.0	0.7	-11.8	XZ427C-5	23.0	-0.1	-9.5
XZ420C-4	2.9	0.7	-10.1	XZ427C-6	24.0	0.5	-9.2
XZ421C-1	3.5	1.0	-10.6	XZ427C-7	25.0	0.8	-9.2
XZ421C-2	4.0	1.0	-10.1	XZ427C-2	25.8	0.7	-9.3
XZ421C-3	4.4	1.2	-9.8	XZ427C-8	26.8	0.6	-9.1
XZ421C-4	5.2	1.0	-11.9	XZ428C-2	27.4	0.8	-8.6
XZ421C-5	5.9	1.2	-11.2	XZ428C-3	27.8	0.6	-8.9
XZ422C-1	6.6	1.0	-11.1	XZ428C-4	28.8	0.4	-9.2
XZ422C-2	7.0	1.0	-11.2	XZ428C-5	29.0	0.2	-7.3
XZ422C-3	7.5	1.0	-10.0	XZ428C-1	29.5	0.3	-9.3
XZ422C-4	8.0	0.3	-12.7	XZ428C-6	30.0	0.3	-8.8
XZ422C-5	8.5	1.0	-10.2	XZ428C-7	31.0	0.3	-8.4
XZ422C-6	9.0	0.4	-13.1	XZ428C-8	32.0	0.3	-9.0
XZ423C-1	9.5	0.7	-10.0	XZ428C-9	33.0	0.4	-8.9
XZ423C-2	10.0	0.6	-11.3	XZ429C-1	33.1	0.5	-8.9
XZ423C-3	10.6	1.4	-10.1	XZ429C-2	34.4	0.3	-9.0
XZ423C-4	11.0	1.0	-9.7	XZ429C-3	34.9	0.2	-8.7
XZ423C-5	11.5	0.8	-10.4	XZ429C-4	35.4	0.3	-8.2
XZ423C-6	12.0	0.6	-9.9	XZ429C-5	37.5	0.3	-8.3
XZ424C-1	12.5	0.8	-9.5	XZ429C-6	38.0	-0.2	-8.5
XZ424C-2	13.5	0.7	-8.8	XZ430C-2	39.8	0.4	-9.5
XZ424C-3	14.0	0.8	-8.6	XZ430C-1	43.0	-0.1	-9.6
XZ424C-4	14.5	0.5	-11.1	XZ431C-2	45.1	0.5	-9.2
XZ424C-5	15.0	0.7	-9.0	XZ431C-1	48.3	0.1	-8.5
XZ425C-1	15.6	0.3	-10.7	XZ432C-2	51.6	0.3	-8.5
XZ425C-2	16.0	0.4	-10.7	XZ432C-1	54.8	0.2	-8.2
XZ425C-3	16.6	0.4	-10.7	XZ433C-1	58.6	0.1	-10.0
XZ425C-4	17.0	0.5	-9.2	XZ433C-2	61.1	0.6	-8.9
XZ425C-5	17.5	0.4	-9.2	XZ434C-1	63.1	0.3	-8.0
XZ425C-6	18.0	0.1	-8.8	XZ435C-1	70.8	0.4	-7.4
XZ426C-1	18.5	-0.1	-10.5	XZ435C-2	74.6	0.5	-8.2
XZ426C-4	19.0	0.2	-11.5	XZ436C-3	77.2	0.4	-8.4
XZ426C-2	19.5	-0.1	-9.2	XZ436C-1	78.0	0.5	-9.1
XZ426C-3	20.1	0.1	-8.1	XZ436C-2	79.8	0.6	-8.4
XZ426C-5	20.5	0.1	-9.7	XZ437C-1	82.9	0.2	-10.5
XZ426C-6	21.0	0.1	-8.9	XZ437C-2	85.8	1.0	-7.6
XZ427C-3	21.5	0.4	-9.0

样品号	层位/m	元素含量/%
样品号	层位/m	SiO₂	Al₂O₃	Fe₂O₃	CaO	MgO	K₂O	Na₂O	MnO	TiO₂	P₂O₅
XZ420C-1	0	17.46	1.82	1.20	43.25	0.80	0.22	0.27	0.306	0.107	0.051
XZ420C-2	0.4	14.08	1.96	0.97	44.72	0.81	0.30	0.27	0.291	0.091	0.340
XZ420C-3	2.0	38.67	3.77	2.03	28.95	1.27	0.56	0.37	0.180	0.166	1.298
XZ420C-4	2.9	4.14	0.34	0.64	53.21	0.36	0.02	0.09	0.527	0.020	0.171
XZ421C-1	3.5	32.39	3.76	2.48	32.10	1.57	0.55	0.23	0.134	0.116	0.206
XZ421C-2	4.0	8.85	0.66	0.96	49.98	0.61	0.05	0.06	0.358	0.027	0.084
XZ421C-3	4.4	10.61	0.69	1.01	48.84	0.64	0.07	0.09	0.295	0.041	0.094
XZ421C-4	5.2	7.10	1.21	1.30	50.31	0.78	0.08	0.08	0.276	0.029	0.060
XZ421C-5	5.9	16.20	1.36	1.41	45.39	0.74	0.16	0.10	0.197	0.048	0.090
XZ422C-1	6.6	13.79	0.83	1.26	47.53	0.64	0.08	0.07	0.274	0.041	0.060
XZ422C-2	7.0	23.36	1.34	1.47	41.65	0.74	0.11	0.17	0.199	0.066	0.196
XZ422C-3	7.5	16.08	0.85	1.29	46.50	0.64	0.09	0.10	0.284	0.038	0.110
XZ422C-4	8.0	52.43	2.66	2.24	21.80	1.25	0.26	0.22	0.129	0.113	0.202
XZ422C-5	8.5	13.52	1.34	1.87	45.57	0.97	0.07	0.07	0.264	0.035	0.209
XZ422C-6	9.0	12.68	1.21	1.74	48.28	0.76	0.08	0.12	0.375	0.056	0.084
XZ423C-1	9.5	15.99	1.45	1.58	43.43	0.75	0.14	0.15	0.208	0.066	0.113
XZ423C-2	10.0	40.37	1.99	2.25	29.98	1.12	0.12	0.14	0.165	0.078	0.066
XZ423C-3	10.6	14.16	1.35	1.00	46.09	0.73	0.19	0.12	0.188	0.058	0.094
XZ423C-4	11.0	15.60	1.34	1.52	46.07	0.77	0.11	0.20	0.274	0.069	0.249
XZ423C-5	11.5	17.66	1.86	1.39	43.62	0.91	0.23	0.26	0.223	0.070	0.312
XZ423C-6	12.0	9.84	0.61	1.11	49.61	0.55	0.03	0.11	0.323	0.030	0.038
XZ424C-1	12.5	10.51	1.19	1.63	47.99	0.87	0.07	0.11	0.309	0.039	0.052
XZ424C-2	13.5	5.82	0.68	1.18	50.78	0.71	0.03	0.09	0.302	0.029	0.037
XZ424C-3	14.0	6.69	0.87	1.25	50.18	0.86	0.06	0.11	0.216	0.024	0.068
XZ424C-4	14.5	5.24	0.63	1.16	51.36	0.59	0.02	0.12	0.284	0.033	0.056
XZ424C-5	15.0	8.51	0.75	1.22	49.67	0.71	0.06	0.08	0.299	0.024	0.043
XZ425C-1	15.6	21.21	1.63	1.59	42.24	0.83	0.18	0.18	0.212	0.065	0.096
XZ425C-2	16.0	15.04	1.34	1.54	45.74	0.85	0.12	0.14	0.213	0.053	0.096
XZ425C-3	16.6	26.05	3.06	2.33	37.12	1.34	0.45	0.26	0.149	0.119	0.245
XZ425C-4	17.0	19.28	2.43	2.22	40.69	1.39	0.27	0.19	0.176	0.081	0.205
XZ425C-5	17.5	9.39	1.27	1.32	48.40	0.83	0.09	0.17	0.329	0.045	0.121
XZ425C-6	18.0	6.67	0.32	1.08	50.49	0.48	0.01	0.04	0.389	0.015	0.107
XZ426C-1	18.5	45.65	4.44	3.00	23.35	1.77	0.59	0.44	0.106	0.175	0.248
XZ426C-4	19.0	7.53	1.42	2.00	47.80	1.04	0.11	0.10	0.319	0.051	0.055
XZ426C-2	19.5	6.38	0.39	0.88	50.33	0.50	0.03	0.06	0.364	0.019	0.085
XZ426C-3	20.1	7.35	1.13	1.42	49.61	0.73	0.08	0.11	0.269	0.046	0.103
XZ426C-5	20.5	9.31	1.58	2.09	46.89	1.12	0.09	0.19	0.311	0.066	0.044
XZ426C-6	21.0	7.83	1.71	1.87	47.71	1.11	0.15	0.25	0.323	0.083	0.083
XZ427C-3	21.5	17.94	4.27	2.60	38.64	1.61	0.66	0.45	0.172	0.197	0.128
XZ427C-4	22.0	16.15	4.05	3.36	39.67	1.93	0.40	0.51	0.213	0.176	0.072
XZ427C-1	22.5	11.95	2.83	2.00	43.76	1.30	0.41	0.34	0.269	0.110	0.110
XZ427C-5	23.0	18.22	2.32	3.43	41.11	1.51	0.12	0.16	0.311	0.098	0.173
XZ427C-6	24.0	28.05	7.28	3.74	28.99	2.34	1.20	0.72	0.193	0.300	0.077
XZ427C-7	25.0	15.03	3.96	2.90	40.22	1.75	0.53	0.32	0.172	0.138	0.046
XZ427C-2	25.8	6.92	1.48	1.51	48.73	0.79	0.17	0.24	0.327	0.068	0.060
XZ427C-8	26.8	17.15	4.28	3.41	38.46	2.02	0.53	0.38	0.185	0.149	0.104
XZ428C-2	27.4	11.88	3.30	2.72	42.90	1.59	0.42	0.26	0.196	0.112	0.086
XZ428C-3	27.8	15.30	3.05	2.63	41.63	1.44	0.38	0.36	0.284	0.133	0.059
XZ428C-4	28.8	10.80	2.87	2.05	44.55	1.41	0.39	0.29	0.152	0.104	0.252
XZ428C-5	29.0	8.07	1.77	1.72	47.63	1.09	0.20	0.16	0.216	0.067	0.071
XZ428C-1	29.5	10.47	2.15	2.10	46.58	1.10	0.14	0.47	0.296	0.116	0.096
XZ428C-6	30.0	36.74	7.37	3.36	24.40	2.29	1.34	0.72	0.085	0.298	0.358
XZ428C-7	31.0	26.18	5.20	3.26	30.06	2.08	0.80	0.46	0.115	0.204	0.063
XZ428C-8	32.0	22.77	4.64	2.81	35.25	1.93	0.68	0.48	0.120	0.176	0.074
XZ428C-9	33.0	12.49	2.05	1.70	45.06	1.02	0.23	0.29	0.213	0.089	0.046
XZ429C-1	33.1	7.21	1.66	1.48	48.20	0.97	0.22	0.23	0.239	0.070	0.045
XZ429C-2	34.4	18.08	3.04	1.78	40.92	1.15	0.46	0.49	0.152	0.141	0.069
XZ429C-3	34.9	30.49	4.75	2.41	31.30	1.78	0.84	0.45	0.099	0.190	0.163
XZ429C-4	35.4	6.86	0.67	0.81	50.45	0.61	0.11	0.09	0.266	0.032	0.064
XZ429C-5	37.5	16.43	2.17	1.36	43.19	0.94	0.28	0.42	0.237	0.109	0.054
XZ429C-6	38.0	13.37	1.75	1.64	45.20	1.04	0.22	0.16	0.311	0.063	0.073
XZ430C-2	39.8	11.06	1.57	1.23	47.14	0.89	0.20	0.25	0.167	0.083	0.076
XZ430C-1	43.0	5.86	1.17	1.37	51.11	0.71	0.03	0.46	0.264	0.105	0.062
XZ431C-2	45.1	17.81	2.89	1.84	41.34	1.30	0.43	0.40	0.103	0.131	0.051
XZ431C-1	48.3	13.00	1.66	1.27	47.36	0.89	0.26	0.20	0.170	0.065	0.042
XZ432C-2	51.6	6.85	0.82	1.12	49.12	0.71	0.10	0.13	0.250	0.035	0.024
XZ432C-1	54.8	5.62	0.81	0.86	50.92	0.68	0.10	0.18	0.168	0.044	0.032
XZ433C-1	58.6	8.46	1.31	1.06	48.95	0.78	0.15	0.25	0.159	0.060	0.064
XZ433C-2	61.1	8.75	1.18	1.06	51.34	0.64	0.14	0.27	0.196	0.051	0.062
XZ434C-1	63.1	23.50	3.20	2.16	37.22	1.63	0.48	0.30	0.077	0.114	0.085
XZ434C-2	67.0	9.44	1.71	1.29	47.91	0.98	0.20	0.38	0.171	0.087	0.050
XZ435C-1	70.8	6.38	0.70	0.69	51.84	0.60	0.12	0.16	0.160	0.038	0.048
XZ435C-2	74.6	18.33	2.43	1.51	41.90	1.19	0.40	0.32	0.106	0.093	0.044
XZ436C-3	77.2	8.09	0.70	0.73	50.87	0.52	0.06	0.30	0.282	0.054	0.070
XZ436C-1	78.0	43.47	5.26	3.51	23.39	2.55	0.75	0.37	0.085	0.122	0.048
XZ436C-2	79.8	15.11	1.58	1.38	44.85	0.97	0.21	0.12	0.208	0.045	0.042
XZ437C-1	82.9	45.06	1.72	1.38	30.63	0.99	0.09	0.34	0.120	0.031	0.047
XZ437C-2	85.8	7.08	1.25	0.94	49.54	0.81	0.20	0.20	0.228	0.045	0.083