黑龙江省东部早古生代地层的确定：地质与碎屑锆石U-Pb年代学证据

高福红; 杨扬; 王枫; 许文良

doi:10.3799/dqkx.2014.048

黑龙江省东部早古生代地层的确定：地质与碎屑锆石U-Pb年代学证据

doi: 10.3799/dqkx.2014.048

吉林大学地球科学学院，吉林长春 130061

基金项目:

国家自然科学基金 41272075

国家自然科学基金 41072038

地调局项目 12120113098200

详细信息

作者简介:
高福红(1963-)，女，教授，主要从事岩石学研究.E-mail: gaofh@jlu.edu.cn

中图分类号: P597
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出版历程
- 收稿日期: 2013-11-19
- 刊出日期: 2014-05-01

Determination of the Early Paleozoic Strata in Eastern Heilongjiang Province: Evidence from Field Geology and Detrital Zircon U-Pb Geochronology

College of Earth Sciences, Jilin University, Changchun 130061, China

摘要

摘要: 通过研究黑龙江省东部早古生代地层晨明组和宝泉组碎屑锆石的U-Pb定年结果，讨论了晨明组和宝泉组的所属时代和物源.大多数锆石呈自形-半自形晶，显示出典型的岩浆生长环带或条痕状吸收，暗示其岩浆成因，极少数的锆石具有经变质作用形成的暗色增生边.定年结果表明：采自晨明组上部长石石英砂岩中碎屑锆石59个分析点产生了以下年龄组：561 Ma、621 Ma、683 Ma、752 Ma、803 Ma、822 Ma、851 Ma、900 Ma、922 Ma、954 Ma、1 781 Ma、1 865 Ma和1 933 Ma，这表明晨明组沉积于561 Ma之后.而以不整合接触关系覆盖于晨明组之上的宝泉组底部泥质板岩中碎屑锆石60个分析法点产生了425 Ma、450 Ma、485 Ma、900 Ma和1 750 Ma年龄众数.由上述地质关系和年代学测定结果，结合晚古生代地层中碎屑锆石的年龄组合，可以判定位于黑龙江省东部地区晨明组的形成时代介于561~510 Ma之间，这是首次在黑龙江省东部确定的具有确切年代学证据的早古生代地层.上述年龄组碎屑锆石的存在，表明其物源主要为该区新元古代和古元古代的地质体，这进一步揭示在早古生代期间，松嫩-张广才岭地块东缘可能存在前寒武纪残片.
- 黑龙江省东部 /
- 早古生代 /
- 晨明组 /
- 碎屑锆石U-Pb /
- 年代学 /
- 地质学
Abstract: This paper reports LA-ICP-MS zircon U-Pb dating results from the Chenming and Baoquan formations in the eastern Heilongjiang Province in order to constrain their forming age and provenances. Most of detrital zircons are euhedral-subhedral in shape and display striped absorption or oscillatory zoning in CL images, implying their magmatic origin. The others show dark accretionary rim formed by metamorphism. The dating results on magmatic zircons indicate that 59 detrital zircons from feldspathic quartz sandstones in the upper part of the Chenming Formation yielded age populations of 561 Ma, 621 Ma, 683 Ma, 752 Ma, 803 Ma, 822 Ma, 851 Ma, 900 Ma, 922 Ma, 954 Ma, 1 781 Ma, 1 865 Ma and 1 933 Ma. Based on detrital zircon dating results, we conclude that the sedimentary processes of the Chenming Formation could take place after 561 Ma. In the study area, the Baoquan Formation overlain the Chenming Formation with the unconformity relationship, 60 detrital zircons from argillic slates in the lower part of the Baoquan Formation yielded age populations of 425 Ma, 450 Ma, 485 Ma, 900 Ma and 1 750 Ma. According to the above dating results and the field geological relationship, combined with the age populations of the detrial zircons from the Late Paleozoic strata, we consider that the Chenming Formation in the eastern Heilongjiang Province formed between 561 Ma to 510 Ma. The Early Paleozoic strata are firstly discovered with the exact geochronological evidence in the eastern Heilongjiang Province. The above detrital zircon ages indicate that the provenances of the Chenming Formation could mainly come from the Neoproterozoic and Paleoproterozoic igneous rocks around the study area, implying that the minor Precambrian basement relic might be occurred in the eastern margin of the Songnen-Zhangguangcailing Massif in the Early Paleozoic.
- eastern Heilongjiang Province /
- Early Paleozoic /
- Chenming Formation /
- detrital zircon U-Pb /
- geochronology /
- geology

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图 1 研究区地质(黑龙江省地矿局，1993)

Fig. 1. Geological sketch map of the study area

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图 2 晨明组和宝泉组岩性柱状图及采样位置

Fig. 2. Column diagram of the Chenming and Baoquan formations showing lithology and sampling location

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图 3 晨明组和宝泉组样品显微照片(正交偏光)

Fig. 3. Photomicrographs of analysed samples from the Chenming and Baoquan formations

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图 4 晨明组(a)与宝泉组(b)锆石中的阴极发光图像

Fig. 4. CL images of zircons from the Chengming (a) and Baoquan (b) formations

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图 5 晨明组和宝泉组锆石LA-ICP-MS U-Pb年龄谐和

Fig. 5. U-Pb concordia diagrams summarizing the LA-ICP-MS zircon data for the Chenming and Baoquan formations

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图 6 碎屑锆石U-Pb年龄频率

Fig. 6. Relative probability of detrital zircons

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表 1 黑龙江省东部晨明组和宝泉组锆石LA-ICP-MS U-Pb定年数据(年龄单位：Ma)

Table 1. LA-ICP-MS zircon U-Pb dating results for the Chenming and Baoquan formations in eastern Heilongjiang Province

序号	Th (10^-6)	U (10^-6)	Th/U	²⁰⁷Pb/²⁰⁶Pb		²⁰⁷Pb/²³⁵U		²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²⁰⁶Pb		²⁰⁷Pb/²³⁵U		²⁰⁶Pb/²³⁸U
序号	Th (10^-6)	U (10^-6)	Th/U	比值	1σ	比值	1σ	比值	1σ	年龄	1σ	年龄	1σ	年龄	1σ
12HCM1-2长石石英砂岩(晨明组)
12HCM1-2-01	210	302	0.70	0.070 23	0.003 41	1.327 23	0.061 69	0.136 02	0.003 28	935	57	858	27	822	19
12HCM1-2-02	105	197	0.53	0.069 08	0.005 08	1.554 88	0.115 98	0.159 66	0.004 01	901	112	952	46	955	22
12HCM1-2-03	456	512	0.89	0.069 66	0.002 49	1.494 74	0.049 03	0.153 73	0.002 91	918	37	928	20	922	16
12HCM1-2-04	108	186	0.58	0.067 72	0.004 06	1.337 78	0.076 34	0.141 87	0.002 69	860	87	862	33	855	15
12HCM1-2-05	73	200	0.37	0.118 43	0.004 29	5.919 71	0.208 21	0.355 84	0.005 21	1 933	42	1 964	31	1 962	25
12HCM1-2-06	282	505	0.56	0.109 23	0.004 29	5.133 43	0.194 52	0.334 53	0.005 15	1787	47	1842	32	1860	25
12HCM1-2-07	191	330	0.58	0.071 41	0.003 18	1.587 06	0.068 58	0.159 59	0.002 55	969	62	965	27	954	14
12HCM1-2-08	368	591	0.62	0.113 00	0.004 83	4.992 54	0.199 51	0.315 77	0.006 32	1 848	44	1 818	34	1 769	31
12HCM1-2-09	420	1119	0.38	0.114 67	0.003 15	5.550 22	0.166 00	0.344 53	0.005 20	1 875	32	1 908	26	1 908	25
12HCM1-2-10	193	241	0.80	0.068 65	0.004 20	1.426 29	0.084 49	0.149 68	0.002 61	888	94	900	35	899	15
12HCM1-2-11	181	319	0.57	0.067 23	0.005 94	1.302 66	0.104 36	0.141 16	0.003 77	845	122	847	46	851	21
12HCM1-2-12	208	265	0.78	0.062 85	0.006 56	1.073 32	0.111 37	0.124 00	0.003 43	703	176	740	55	754	20
12HCM1-2-13	116	390	0.30	0.067 08	0.003 18	0.940 10	0.043 83	0.101 16	0.001 43	840	74	673	23	621	8
12HCM1-2-14	525	679	0.77	0.070 49	0.002 33	1.562 45	0.051 09	0.159 58	0.001 84	943	48	955	20	954	10
12HCM1-2-15	121	268	0.45	0.070 01	0.004 84	1.493 11	0.106 30	0.153 52	0.004 02	929	103	928	43	921	22
12HCM1-2-16	594	590	1.01	0.067 61	0.002 87	1.324 37	0.056 14	0.141 25	0.001 96	857	65	856	25	852	11
12HCM1-2-17	296	717	0.41	0.060 53	0.003 14	0.759 82	0.037 27	0.090 97	0.001 48	622	78	574	22	561	9
12HCM1-2-18	65	552	0.12	0.069 08	0.003 82	1.333 44	0.069 36	0.139 99	0.002 61	901	117	860	30	845	15
12HCM1-2-19	150	461	0.33	0.118 57	0.005 78	5.551 68	0.263 86	0.336 87	0.005 65	1 935	61	1 909	41	1 872	27
12HCM1-2-20	410	351	1.17	0.063 68	0.003 48	1.194 97	0.066 18	0.135 80	0.002 07	731	92	798	31	821	12
12HCM1-2-21	83	930	0.09	0.067 58	0.003 36	1.328 52	0.065 53	0.141 62	0.003 24	856	65	858	29	854	18
12HCM1-2-22	1 030	1 448	0.71	0.062 38	0.002 76	0.789 44	0.032 36	0.091 03	0.001 21	687	65	591	18	562	7
12HCM1-2-23	457	912	0.50	0.108 65	0.003 05	5.008 01	0.141 34	0.329 79	0.003 50	1 777	36	1 821	24	1 837	17
12HCM1-2-24	451	1 045	0.43	0.108 97	0.003 30	5.125 60	0.151 65	0.336 54	0.003 75	1 782	38	1 840	25	1 870	18
12HCM1-2-25	240	196	1.22	0.066 48	0.003 98	1.210 11	0.069 25	0.132 88	0.002 18	821	92	805	32	804	12
12HCM1-2-26	221	637	0.35	0.058 64	0.002 97	0.742 22	0.038 16	0.090 99	0.001 62	554	81	564	22	561	10
12HCM1-2-27	513	1 034	0.50	0.061 32	0.002 29	0.780 03	0.031 41	0.090 92	0.001 33	651	61	586	18	561	8
12HCM1-2-28	268	300	0.89	0.063 31	0.005 52	0.962 12	0.080 74	0.111 44	0.003 23	719	129	684	42	681	19
12HCM1-2-29	380	556	0.68	0.070 99	0.002 81	1.338 56	0.054 16	0.135 84	0.002 06	957	58	863	24	821	12
12HCM1-2-30	648	713	0.91	0.065 24	0.002 30	1.232 05	0.043 27	0.136 05	0.001 51	782	55	815	20	822	9
12HCM1-2-31	171	1 479	0.12	0.114 00	0.003 88	4.586 81	0.150 53	0.292 17	0.008 00	1 864	27	1 747	27	1 652	40
12HCM1-2-32	225	554	0.41	0.118 48	0.003 51	5.556 67	0.163 53	0.336 52	0.003 36	1 933	38	1 909	25	1 870	16
12HCM1-2-33	413	926	0.45	0.153 72	0.003 97	1.286 93	0.267 33	0.478 95	0.005 11	2 388	30	2 461	24	2 523	22
12HCM1-2-34	328	532	0.62	0.070 41	0.003 67	1.340 57	0.072 20	0.135 74	0.002 03	940	86	863	31	821	12
12HCM1-2-35	289	659	0.44	0.064 42	0.002 84	1.271 41	0.054 62	0.140 91	0.002 37	756	62	833	24	850	13
12HCM1-2-36	232	717	0.32	0.060 59	0.002 70	0.773 42	0.034 01	0.091 00	0.001 27	625	71	582	19	561	7
12HCM1-2-37	203	479	0.42	0.063 95	0.002 60	1.267 16	0.049 99	0.141 22	0.001 95	740	60	831	22	852	11
12HCM1-2-38	231	276	0.84	0.064 94	0.003 47	1.231 83	0.065 91	0.135 65	0.001 89	772	89	815	30	820	11
12HCM1-2-39	523	643	0.81	0.060 93	0.002 92	1.165 14	0.057 85	0.136 55	0.002 17	637	79	784	27	825	12
12HCM1-2-40	217	267	0.81	0.061 71	0.004 16	0.846 54	0.049 88	0.101 23	0.001 80	664	96	623	27	622	11
12HCM1-2-41	391	597	0.65	0.054 18	0.002 62	0.928 01	0.042 95	0.123 87	0.001 76	379	78	667	23	753	10
12HCM1-2-42	124	192	0.65	0.061 07	0.006 08	0.921 99	0.081 98	0.112 05	0.002 60	642	152	663	43	685	15
12HCM1-2-43	142	780	0.18	0.099 31	0.003 52	4.494 37	0.155 35	0.326 91	0.005 67	1 611	39	1 730	29	1 823	28
12HCM1-2-44	721	675	1.07	0.058 45	0.002 88	1.109 23	0.051 80	0.136 67	0.003 02	547	64	758	25	826	17
12HCM1-2-45	199	365	0.55	0.052 74	0.005 01	0.903 03	0.082 43	0.123 53	0.002 49	318	170	653	44	751	14
12HCM1-2-46	212	676	0.31	0.064 99	0.003 77	1.276 34	0.068 08	0.141 18	0.002 54	774	82	835	30	851	14
12HCM1-2-47	312	797	0.39	0.071 35	0.003 53	1.404 42	0.065 28	0.141 36	0.002 88	967	62	891	28	852	16
12HCM1-2-48	583	634	0.92	0.069 47	0.006 68	0.882 87	0.081 37	0.091 22	0.002 48	913	146	643	44	563	15
12HCM1-2-49	211	434	0.49	0.073 72	0.003 24	1.530 49	0.065 77	0.150 07	0.002 34	1034	61	943	26	901	13
12HCM1-2-50	221	262	0.84	0.074 22	0.003 75	1.544 51	0.077 78	0.149 83	0.002 23	1 047	77	948	31	900	13
12HCM1-2-51	429	609	0.71	0.066 33	0.003 65	0.839 23	0.047 75	0.090 95	0.001 83	817	85	619	26	561	11
12HCM1-2-52	1 045	1 086	0.96	0.069 81	0.002 32	1.324 38	0.045 21	0.135 97	0.001 75	923	49	856	20	822	10
12HCM1-2-53	573	886	0.65	0.063 74	0.002 96	0.805 56	0.037 06	0.091 04	0.001 43	733	71	600	21	562	8
12HCM1-2-54	934	962	0.97	0.060 62	0.002 65	0.849 62	0.036 97	0.101 13	0.001 52	626	68	624	20	621	9
12HCM1-2-55	230	271	0.85	0.066 99	0.004 36	1.299 21	0.080 86	0.141 20	0.002 69	837	98	845	36	851	15
12HCM1-2-56	438	505	0.87	0.057 93	0.003 35	0.728 04	0.043 24	0.090 57	0.001 61	527	99	555	25	559	10
12HCM1-2-57	126	1 443	0.09	0.066 48	0.002 28	1.301 04	0.042 95	0.141 22	0.002 07	821	44	846	19	852	12
12HCM1-2-58	910	994	0.92	0.065 61	0.002 13	1.209 35	0.038 42	0.132 61	0.001 45	794	48	805	18	803	8
12HCM1-2-59	325	504	0.65	0.065 11	0.004 17	1.105 80	0.067 32	0.123 72	0.002 47	778	94	756	32	752	14
HCM1-2泥质板岩(宝泉组)
HCM1-2-01	82	169	0.48	0.077 00	0.001 91	1.580 03	0.038 88	0.149 11	0.001 35	1 121	35	962	15	896	8
HCM1-2-02	209	724	0.29	0.059 69	0.001 42	0.599 63	0.013 76	0.072 99	0.000 66	592	34	477	9	454	4
HCM1-2-03	196	562	0.35	0.059 85	0.002 20	0.566 70	0.023 95	0.068 18	0.000 91	598	68	456	16	425	5
HCM1-2-04	275	738	0.37	0.058 53	0.001 42	0.552 70	0.013 13	0.068 44	0.000 51	549	39	447	9	427	3
HCM1-2-05	224	631	0.35	0.056 81	0.001 72	0.534 37	0.016 86	0.068 20	0.001 02	484	44	435	11	425	6
HCM1-2-06	300	760	0.40	0.060 40	0.003 45	0.595 60	0.033 27	0.071 52	0.000 84	618	127	474	21	445	5
HCM1-2-07	356	859	0.41	0.059 32	0.001 29	0.593 68	0.013 63	0.072 33	0.000 49	579	38	473	9	450	3
HCM1-2-08	293	725	0.40	0.055 15	0.001 73	0.520 05	0.016 86	0.068 25	0.000 89	418	49	425	11	426	5
HCM1-2-09	293	774	0.38	0.058 16	0.001 34	0.583 13	0.014 17	0.072 59	0.000 81	536	34	466	9	452	5
HCM1-2-10	92	353	0.26	0.057 60	0.002 32	0.570 71	0.022 01	0.071 86	0.000 83	515	91	458	14	447	5
HCM1-2-11	333	963	0.35	0.070 82	0.001 06	1.558 73	0.025 41	0.159 26	0.001 39	952	19	954	10	953	8
HCM1-2-12	306	793	0.39	0.057 47	0.001 48	0.575 37	0.014 86	0.072 51	0.000 70	509	40	461	10	451	4
HCM1-2-13	287	725	0.40	0.059 22	0.001 14	0.594 81	0.011 64	0.072 79	0.000 75	575	25	474	7	453	5
HCM1-2-14	436	1 132	0.39	0.057 29	0.000 91	0.571 58	0.009 22	0.072 27	0.000 70	503	19	459	6	450	4
HCM1-2-15	394	1 279	0.31	0.061 75	0.001 11	0.582 40	0.011 30	0.068 24	0.000 76	665	23	466	7	426	5
HCM1-2-16	416	895	0.46	0.056 52	0.001 40	0.533 57	0.013 42	0.068 32	0.000 72	473	37	434	9	426	4
HCM1-2-17	261	687	0.38	0.055 28	0.001 05	0.552 30	0.010 37	0.072 37	0.000 52	424	29	447	7	450	3
HCM1-2-18	286	741	0.39	0.058 44	0.001 15	0.585 79	0.012 01	0.072 48	0.000 52	546	32	468	8	451	3
HCM1-2-19	535	966	0.55	0.058 36	0.001 35	0.632 07	0.015 50	0.078 28	0.000 75	543	37	497	10	486	4
HCM1-2-20	556	940	0.59	0.054 69	0.001 59	0.547 17	0.014 51	0.072 59	0.000 80	399	40	443	10	452	5
HCM1-2-21	284	308	0.92	0.063 61	0.002 05	0.595 23	0.018 20	0.068 18	0.000 75	729	46	474	12	425	5
HCM1-2-22	49	105	0.47	0.106 57	0.002 83	4.553 05	0.119 01	0.309 73	0.003 69	1 742	31	1 741	22	1 739	18
HCM1-2-23	221	751	0.29	0.058 02	0.001 40	0.626 95	0.014 93	0.078 27	0.000 59	531	39	494	9	486	4
HCM1-2-24	298	791	0.38	0.058 22	0.001 52	0.583 14	0.016 64	0.072 33	0.000 90	538	41	466	11	450	5
HCM1-2-25	635	906	0.70	0.056 81	0.001 46	0.569 11	0.014 20	0.072 57	0.000 80	484	36	457	9	452	5
HCM1-2-26	355	680	0.52	0.059 14	0.001 39	0.591 50	0.013 85	0.072 34	0.000 51	572	39	472	9	450	3
HCM1-2-27	139	157	0.88	0.065 67	0.003 17	0.652 31	0.028 65	0.072 55	0.000 97	796	70	510	18	451	6
HCM1-2-28	170	552	0.31	0.061 06	0.001 38	0.611 28	0.013 98	0.072 43	0.000 58	641	35	484	9	451	4
HCM1-2-29	265	676	0.39	0.058 53	0.001 75	0.588 52	0.018 69	0.072 61	0.000 94	550	47	470	12	452	6
HCM1-2-30	243	633	0.38	0.056 80	0.001 44	0.568 89	0.014 62	0.072 51	0.000 74	484	39	457	9	451	4
HCM1-2-B01	336	822	0.41	0.057 93	0.001 92	0.550 47	0.017 99	0.068 22	0.000 71	527	53	445	12	425	4
HCM1-2-B02	328	939	0.35	0.056 48	0.001 92	0.570 06	0.019 55	0.072 38	0.000 86	471	55	458	13	450	5
HCM1-2-B03	405	1 223	0.33	0.059 02	0.003 27	0.558 01	0.028 91	0.068 41	0.001 02	568	87	450	19	427	6
HCM1-2-B04	341	974	0.35	0.055 82	0.001 98	0.559 82	0.019 61	0.072 34	0.001 04	445	52	451	13	450	6
HCM1-2-B05	447	1 365	0.33	0.055 76	0.001 61	0.562 41	0.016 80	0.072 33	0.000 86	443	45	453	11	450	5
HCM1-2-B06	393	1 142	0.34	0.056 12	0.001 95	0.532 69	0.018 21	0.068 21	0.000 73	457	57	434	12	425	4
HCM1-2-B07	517	1 417	0.36	0.059 34	0.002 35	0.601 31	0.026 44	0.072 44	0.001 19	580	67	478	17	451	7
HCM1-2-B08	453	1 545	0.29	0.056 41	0.001 84	0.564 91	0.017 21	0.072 31	0.000 90	469	45	455	11	450	5
HCM1-2-B09	222	713	0.31	0.054 02	0.001 82	0.584 48	0.019 08	0.078 18	0.000 95	372	51	467	12	485	6
HCM1-2-B10	436	1 354	0.32	0.053 10	0.001 85	0.536 80	0.019 36	0.072 58	0.000 99	333	57	436	13	452	6
HCM1-2-B11	524	1 385	0.38	0.054 55	0.001 61	0.548 88	0.015 91	0.072 40	0.000 96	394	41	444	10	451	6
HCM1-2-B12	613	981	0.62	0.066 12	0.002 43	0.718 31	0.025 95	0.078 22	0.000 72	590	144	501	25	481	5
HCM1-2-B13	417	1 167	0.36	0.053 66	0.001 98	0.541 02	0.019 58	0.072 53	0.000 93	357	58	439	13	451	6
HCM1-2-B14	350	834	0.42	0.058 93	0.002 00	0.593 16	0.020 44	0.072 45	0.000 87	564	54	473	13	451	5
HCM1-2-B15	374	878	0.43	0.052 97	0.002 04	0.532 96	0.020 21	0.072 55	0.001 04	328	60	434	13	451	6
HCM1-2-B16	370	1 048	0.35	0.053 56	0.001 99	0.506 74	0.018 47	0.068 18	0.001 09	352	53	416	12	425	7
HCM1-2-B17	446	1 125	0.40	0.060 36	0.001 97	0.571 66	0.016 76	0.068 07	0.000 91	617	40	459	11	425	5
HCM1-2-B18	813	2 233	0.36	0.054 89	0.001 26	0.553 02	0.012 90	0.072 39	0.000 74	408	34	447	8	451	4
HCM1-2-B19	452	1 218	0.37	0.058 44	0.002 00	0.552 13	0.018 16	0.068 21	0.001 18	546	42	446	12	425	7
HCM1-2-B20	615	1 167	0.53	0.076 56	0.002 83	0.723 45	0.026 88	0.067 90	0.000 88	902	123	502	22	419	5
HCM1-2-B21	648	1 896	0.34	0.055 47	0.001 28	0.527 71	0.012 28	0.068 28	0.000 65	431	35	430	8	426	4
HCM1-2-B22	386	1 053	0.37	0.057 58	0.001 48	0.578 92	0.014 60	0.072 35	0.000 70	514	38	464	9	450	4
HCM1-2-B23	532	1 215	0.44	0.056 12	0.002 23	0.565 88	0.023 65	0.072 43	0.001 35	457	60	455	15	451	8
HCM1-2-B24	472	1 501	0.31	0.056 66	0.001 70	0.572 88	0.017 24	0.072 54	0.000 89	478	45	460	11	451	5
HCM1-2-B25	545	2 128	0.26	0.054 84	0.001 49	0.554 80	0.016 20	0.072 52	0.001 03	406	40	448	11	451	6
HCM1-2-B26	402	1 038	0.39	0.064 44	0.002 45	0.613 07	0.022 45	0.068 44	0.000 78	541	121	442	19	423	5
HCM1-2-B27	368	966	0.38	0.057 08	0.001 83	0.593 27	0.019 08	0.074 53	0.000 85	495	51	473	12	463	5
HCM1-2-B28	499	1 301	0.38	0.056 71	0.001 47	0.571 90	0.014 94	0.072 32	0.000 71	480	40	459	10	450	4
HCM1-2-B29	416	1 027	0.41	0.057 00	0.001 91	0.541 33	0.017 70	0.068 20	0.000 78	492	52	439	12	425	5
HCM1-2-B30	325	768	0.42	0.064 09	0.002 36	0.649 26	0.027 06	0.072 29	0.001 30	745	58	508	17	450	8

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