中拉萨地体当惹雍措锆石微量元素特征及其对地壳厚度演化的指示

doi:10.13745/j.esf.sf.2024.4.60

地学前缘 ›› 2025, Vol. 32 ›› Issue (1): 343-366.DOI: 10.13745/j.esf.sf.2024.4.60

• “印度欧亚大陆碰撞及其远程效应”专栏之十一 • 上一篇下一篇

中拉萨地体当惹雍措锆石微量元素特征及其对地壳厚度演化的指示

刘晓惠¹(), 刘一珉²^,^*(), 丁林³, 郭晓玉⁴^,⁵, 黄兴富⁶, 李蕙琳⁴^,⁵, 高锐⁴^,⁵

1.中国石油大学(北京) 地球物理学院, 油气资源与工程全国重点实验室, 北京 102249
2.中国科学院地质与地球物理研究所, 岩石圈演化与环境演变全国重点实验室, 北京 100029
3.中国科学院青藏高原研究所, 青藏高原地球系统与资源环境重点实验室, 北京 100101
4.中山大学地球科学与工程学院, 广东珠海 519082
5.南方海洋科学与工程广东省实验室(珠海), 广东珠海 519082
6.桂林理工大学地球科学学院, 广西桂林 541004

收稿日期:2024-04-11 修回日期:2024-05-08 出版日期:2025-01-25 发布日期:2025-01-15
通信作者: *刘一珉(1994—),男,博士后,主要从事青藏高原构造地质学研究工作。E-mail: liuymgeo@163.com
作者简介:刘晓惠(1990—),女,讲师,主要从事青藏高原新生代地表隆升及地球深部动力学过程研究工作。E-mail: liuxiaohui@cup.edu.cn
基金资助:
国家自然科学基金项目(42202237);国家自然科学基金项目(42304105);国家自然科学基金项目(42274120);国家自然科学基金项目(41874102);中国石油大学(北京)科研基金资助项目(2462023YJRC004);科学技术部第二次青藏高原科学考察项目(2019QZKK0701)

Crustal thickness evolution of the Central Lhasa Terrane inferred from trace elements in zircon of Tangra Yumco

LIU Xiaohui¹(), LIU Yimin²^,^*(), DING Lin³, GUO Xiaoyu⁴^,⁵, HUANG Xingfu⁶, LI Huilin⁴^,⁵, GAO Rui⁴^,⁵

1. State Key Laboratory of Petroleum Resources and Prospecting, College of Geophysics, China University of Petroleum (Beijing), Beijing 102249, China
2. State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
3. State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
4. School of Earth Sciences and Engineering, Sun Yat-sen University, Zhuhai 519082, China
5. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China
6. College of Earth Sciences, Guilin University of Technology, Guilin 541004, China

Received:2024-04-11 Revised:2024-05-08 Online:2025-01-25 Published:2025-01-15

摘要/Abstract

摘要：

拉萨地体位于青藏高原南部,是全球地壳厚度最大的区域之一。然而,拉萨地体地壳增厚的时间和过程仍存在一定争议。锆石的微量元素特征受控于锆石与其他微量元素载体矿物之间的共生关系,即不同矿物的分配系数不同,因此,锆石微量元素可用于定量重建地壳厚度。本研究对来自中拉萨地体当惹雍措地区的岩浆岩和沉积岩中的锆石开展了U-Pb年代学和微量元素地球化学研究。利用锆石的Eu异常对地壳厚度进行定量重建,结果显示,中拉萨地体在侏罗纪至新近纪期间,经历了两次地壳减薄(150~130和85~65 Ma)和两次地壳增厚(130~85和65~15 Ma)事件。在150~130 Ma期间,中拉萨地体地壳减薄主要与班公湖—怒江洋的板片回撤有关。在130~85 Ma期间,由于新特提斯洋向北俯冲和班公湖—怒江洋向南俯冲,中拉萨地体发生了地壳增厚。在85~65 Ma期间,新特提斯洋的板片回撤和弧后拉张导致中拉萨地体再次发生地壳减薄。在65~15 Ma,印度与亚欧板块的碰撞和后续挤压作用,导致中拉萨地体地壳再次加厚。

关键词: 青藏高原, 中拉萨地体, 地壳厚度, 锆石U-Pb年龄, 锆石微量元素

Abstract:

The Lhasa terrane is located in the southern part of the Tibetan Plateau and is one of the regions with the greatest crustal thickness globally. However, the timing and process of crustal thickening in the Lhasa terrane remain debated. Zircon trace element characteristics are controlled by the co-existing relationships between zircon and other trace element carrier minerals, meaning different minerals have varying partition coefficients, thus zircon trace elements can be used to quantitatively reconstruct crustal thickness. This study conducted U-Pb geochronological and trace element geochemical research on zircons from igneous and sedimentary rocks in the Dangra Yongcuo area of the central Lhasa terrane. Using zircon europium anomalies to quantitatively reconstruct crustal thickness, the results reveal that the central Lhasa terrane experienced two crustal thinning events (150-130 Ma and 85-65 Ma) and two crustal thickening events (130-85 Ma and 65-15 Ma) during the Jurassic to Neogene periods. During 150-130 Ma, crustal thinning in the central Lhasa terrane was primarily related to slab retreat of the Bangong-Nujiang Ocean. Between 130-85 Ma, the central Lhasa terrane underwent crustal thickening due to northward subduction of the Neo-Tethys Ocean and southward subduction of the Bangong-Nujiang Ocean. During 85-65 Ma, slab retreat of the Neo-Tethys Ocean and back-arc extension led to another crustal thinning event. From 65-15 Ma, collision and subsequent compression between the Indian and Eurasian plates caused the central Lhasa terrane to thicken again.

Key words: Tibetan Plateau, central Lhasa terrane, crustal thickness, zircon U-Pb age, zircon trace elements

中图分类号:

刘晓惠, 刘一珉, 丁林, 郭晓玉, 黄兴富, 李蕙琳, 高锐. 中拉萨地体当惹雍措锆石微量元素特征及其对地壳厚度演化的指示[J]. 地学前缘, 2025, 32(1): 343-366.

LIU Xiaohui, LIU Yimin, DING Lin, GUO Xiaoyu, HUANG Xingfu, LI Huilin, GAO Rui. Crustal thickness evolution of the Central Lhasa Terrane inferred from trace elements in zircon of Tangra Yumco[J]. Earth Science Frontiers, 2025, 32(1): 343-366.

图/表 8

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样品号	GPS
样品号	纬度/°N	经度/°E	海拔/m
TY01	30.776 82	86.741 93	5 359
TY02	30.783 08	86.737 98	5 364
TY03	30.775 10	86.731 98	5 181
TY04	30.750 10	86.710 77	4 819
TY05	30.750 10	86.710 77	4 819
TY06	30.750 43	86.718 45	4 843
TY07	31.069 43	86.638 08	4 753
TY08	31.069 19	86.636 21	4 755
TY09	31.067 64	86.634 32	4 764
TY11	31.069 50	86.625 08	4 651
TY12	31.069 68	86.625 50	4 655
TY13	31.069 72	86.625 65	4 663
TY14	31.069 77	86.625 65	4 664
TY15	31.069 87	86.625 68	4 685
TY18	31.070 18	86.625 92	4 660
TY20	31.069 75	86.625 70	4 648

样品号	GPS
样品号	纬度/°N	经度/°E	海拔/m
TY01	30.776 82	86.741 93	5 359
TY02	30.783 08	86.737 98	5 364
TY03	30.775 10	86.731 98	5 181
TY04	30.750 10	86.710 77	4 819
TY05	30.750 10	86.710 77	4 819
TY06	30.750 43	86.718 45	4 843
TY07	31.069 43	86.638 08	4 753
TY08	31.069 19	86.636 21	4 755
TY09	31.067 64	86.634 32	4 764
TY11	31.069 50	86.625 08	4 651
TY12	31.069 68	86.625 50	4 655
TY13	31.069 72	86.625 65	4 663
TY14	31.069 77	86.625 65	4 664
TY15	31.069 87	86.625 68	4 685
TY18	31.070 18	86.625 92	4 660
TY20	31.069 75	86.625 70	4 648

中拉萨地体当惹雍措锆石微量元素特征及其对地壳厚度演化的指示

Crustal thickness evolution of the Central Lhasa Terrane inferred from trace elements in zircon of Tangra Yumco

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样品点	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	样品点	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ
TY12
TY12-001	125	113	128	7	128	1	TY12-051	455	2 385	142	262	124	13
TY12-002	914	47	911	19	911	10	TY12-052	57	963	49	29	49	2
TY12-003	50	119	56	3	55.9	0.6	TY12-053	167	1 074	67	48	64	2
TY12-004	79	110	101	6	102	1	TY12-054	767	65	715	20	698	7
TY12-005	2 676	6	2 641	7	2 596	14	TY12-055	147	788	138	62	138	4
TY12-006	2 451	7	2 449	8	2 448	14	TY12-056	94	867	78	41	77	3
TY12-007	2 618	7	2 636	8	2 660	16	TY12-057	131	398	150	34	151	3
TY12-008	3 127	5	3 100	6	3 062	15	TY12-058	82	918	124	66	126	5
TY12-009	133	104	133	7	133	1	TY12-059	1 152	8	1 165	6	1 171	6
TY12-010	81	358	49	11	48	1	TY12-060	1 470	24	1 477	16	1 482	13
TY12-011	124	348	49	10	48	1	TY12-061	63	669	97	40	98	4
TY12-012	123	202	126	12	126	1	TY12-062	78	436	59	16	58	1
TY12-013	83	229	53	6	52	0.6	TY12-063	187	542	145	46	143	4
TY12-014	53	250	58	8	57.9	0.8	TY12-064	251	813	138	63	132	5
TY12-015	97	340	56	11	55	1	TY12-065	28	962	49	31	49	2
TY12-016	25	1 142	56	44	57	2	TY12-066	178	390	147	32	145	3
TY12-017	130	211	133	14	133	3	TY12-067	286	1 115	58	44	53	3
TY12-018	1 335	15	1 283	10	1 253	8	TY12-068	112	413	140	34	142	3
TY12-019	71	187	49	5	48.2	0.7	TY12-069	266	278	140	20	148	2
TY12-020	69	295	54	9	54.1	0.9	TY12-070	305	1 304	71	75	65	4
TY12-021	124	218	99	10	98	1	TY12-071	74	837	51	26	50	2
TY12-022	62	288	54	9	53.6	0.9	TY12-072	51	527	135	44	140	4
TY12-023	218	42	218	5	218	2	TY12-073	2 016	94	371	22	164	4
TY12-024	228	683	56	23	52	2	TY12-074	149	497	138	42	137	5
TY12-025	44	223	50	6	50.6	0.9	TY12-075	161	264	105	14	102	2
TY12-026	86	260	49	7	48.1	0.8	TY12-076	58	1 275	69	74	70	3
TY12-027	141	53	115	3	114.1	0.9	TY12-077	215	123	149	9	145	2
TY12-028	128	112	128	7	128	1	TY12-078	303	359	59	12	61	2
TY12-029	67	136	49	3	48.8	0.5	TY12-079	1 094	42	1 094	20	1 094	11
TY12-030	211	102	135	7	130	1	TY12-080	178	346	122	24	119	3
TY12-031	161	89	132	6	130	1	TY12-081	1 294	72	1 303	34	1 310	13
TY12-032	179	141	128	9	125	1	TY12-082	70	352	61	13	61	2
TY12-033	3 096	6	3 095	8	3 094	17	TY12-083	222	273	146	19	142	2
TY12-034	84	169	82	7	81.5	0.7	TY12-084	82	254	62	9	62	1
TY12-035	82	321	130	23	133	2	TY12-085	257	352	164	30	158	3
TY12-036	162	101	117	6	115	1	TY12-086	160	324	139	25	138	3
TY12-037	224	173	135	11	130	2	TY12-087	587	190	591	47	593	13
TY12-038	278	134	139	9	130	2	TY12-088	611	1 090	90	59	72	4
TY12-039	158	392	57	13	55	1	TY12-089	102	744	60	28	59	3
TY12-040	592	16	536	5	523	3	TY12-090	149	1 092	74	53	71	3
TY12-041	126	143	100	7	98.8	1	TY12-091	177	202	129	13	126	2
TY12-042	25	1 010	52	35	53	2	TY12-092	129	429	69	18	67	1
TY12-043	98	248	55	7	54.4	0.9	TY12-093	117	203	96	10	95	2
TY12-044	44	142	52	4	52.5	0.6	TY12-094	88	1 164	60	56	60	3
TY12-045	25	316	55	10	55.5	0.8	TY12-095	554	644	55	21	56	2
TY12-046	126	70	127	4	127	1	TY12-096	122	663	67	28	65	3
TY12-047	130	220	130	13	130	2	TY12-097	110	323	122	22	122	3
TY12-048	1 284	29	1 287	16	1 289	10	TY12-098	223	160	137	11	132	2
TY12-049	97	277	129	18	131	2	TY12-099	611	39	619	12	622	5
TY12-050	148	196	121	11	120	1	TY12-100	87	1 010	57	37	56	3
TY13
TY13-001	206	678	59	25	56	1	TY13-051	117	1 217	95	80	95	5
TY13-002	43	116	81	5	82.7	1	TY13-052	134	1 224	63	55	62	4
TY13-003	130	92	89	4	87	0.7	TY13-053	39	1 487	42	64	42	4
TY13-004	173	227	144	16	142	2	TY13-054	79	996	76	52	76	4
TY13-005	40	418	50	14	50	1	TY13-055	79	165	49	4	48.7	0.5
TY13-006	71	1 033	87	60	87	3	TY13-056	251	37	222	5	220	2
TY13-007	56	272	85	13	87	1	TY13-057	249	1 248	90	83	84	5
TY13-008	165	324	139	24	137	3	TY13-058	154	297	139	22	138	3
TY13-009	82	314	50	9	49.2	0.8	TY13-059	256	184	144	13	137	3
TY13-010	116	446	86	25	85	2	TY13-060	134	271	121	17	121	2
TY13-011	78	463	53	16	52	1	TY13-061	109	238	87	11	87	2
TY13-012	872	12	782	6	750	5	TY13-062	248	1 564	49	72	45	4
TY13-013	86	665	50	22	49	2	TY13-063	148	506	59	19	57	1
TY13-014	152	204	158	16	158	2	TY13-064	99	193	85	8	85	1
TY13-015	22	396	56	15	56	1	TY13-065	464	99	340	16	322	3
TY13-016	627	45	604	14	597	6	TY13-066	177	2 269	78	163	75	7
TY13-017	121	306	100	17	99	2	TY13-067	124	75	136	5	137	1
TY13-018	130	258	122	16	122	2	TY13-068	91	1 261	45	46	45	3
TY13-019	151	96	133	6	132	1	TY13-069	83	376	52	13	51.2	1
TY13-020	112	125	127	8	127	1	TY13-070	116	344	95	20	94	2
TY13-021	121	115	134	8	135	1	TY13-071	369	1 003	103	63	92	5
TY13-022	67	346	53	12	53	1	TY13-072	132	173	111	10	110	2
TY13-023	57	418	56	16	56	1	TY13-073	212	85	191	8	190	2
TY13-024	102	266	108	15	109	2	TY13-074	220	254	108	14	103	2
TY13-025	132	647	93	38	91	2	TY13-075	216	259	52	7	48.9	0.8
TY13-026	62	210	55	7	55	1	TY13-076	166	1 216	44	38	42	3
TY13-027	212	188	140	13	135	2	TY13-077	123	1 318	57	61	56	3
TY13-028	83	105	49	3	48.2	0.4	TY13-078	237	272	132	19	126	3
TY13-029	65	87	60	3	59.9	0.6	TY13-079	149	1 367	73	86	71	5
TY13-030	79	240	80	10	80	1	TY13-080	331	194	135	13	124	2
TY13-031	65	150	56	5	55.9	0.8	TY13-081	302	2 985	81	218	74	16
TY13-032	3 156	8	3 156	11	3 157	22	TY13-082	76	432	50	15	50	1
TY13-033	80	230	55	7	55	1	TY13-083	261	891	52	30	48	2
TY13-034	109	113	133	8	134	2	TY13-084	162	459	51	16	49	2
TY13-035	102	78	114	5	114	1	TY13-085	139	684	80	35	78	3
TY13-036	119	344	48	10	46	1	TY13-086	141	289	83	13	81	2
TY13-037	107	218	133	15	135	2	TY13-087	321	1 112	60	46	53	3
TY13-038	138	254	141	18	141	2	TY13-088	127	567	55	21	54	2
TY13-039	104	95	90	5	90	0.9	TY13-089	248	450	64	17	59	1
TY13-040	1 774	8	1 761	8	1 752	10	TY13-090	1 898	14	1 888	13	1 880	14
TY13-041	56	187	58	6	58.5	0.7	TY13-091	86	414	50	14	48.9	1
TY13-042	92	228	56	7	55	0.8	TY13-092	112	282	91	14	90	2
TY13-043	51	332	52	11	52	1	TY13-093	114	161	90	8	89	1
TY13-044	57	84	52	3	52	0.6	TY13-094	116	393	53	14	51	1
TY13-045	207	373	109	23	104	2	TY13-095	194	862	127	68	124	5
TY13-046	44	183	51	5	51.6	0.6	TY13-096	77	415	50	14	49	1
TY13-047	133	58	128	4	127	1	TY13-097	90	597	44	18	43	2
TY13-048	3	278	53	9	54	1	TY13-098	731	20	686	8	673	4
TY13-049	91	97	83	4	82.9	0.9	TY13-099	81	495	54	19	54	2
TY13-050	31	297	49	9	49	1	TY13-100	270	328	125	21	117	2
TY14
TY14-001	182	162	173	13	172	2	TY14-051	258	142	216	14	212	2
TY14-002	91	210	91	9	91.1	0.9	TY14-052	803	42	795	15	792	6
TY14-003	64	237	52	6	51.5	0.6	TY14-053	136	379	56	13	55	1
TY14-004	80	162	85	7	85	1	TY14-054	260	304	97	13	90	1
TY14-005	75	182	89	8	89.1	1	TY14-055	73	918	93	51	94	4
TY14-006	190	259	138	17	135	2	TY14-056	131	212	92	9	90	1
TY14-007	210	49	216	5	216	2	TY14-057	205	1 572	157	224	154	14
TY14-008	68	98	83	4	83.9	0.9	TY14-058	95	343	94	19	94	2
TY14-009	1 066	20	1 054	10	1 048	7	TY14-059	118	448	81	23	80	2
TY14-010	1 189	28	1 195	15	1 198	10	TY14-060	1 223	36	1 181	19	1 160	11
TY14-011	117	96	122	6	122	1	TY14-061	105	269	92	13	91	2
TY14-012	72	68	84	3	84.9	0.7	TY14-062	1 152	99	1 153	40	1 154	11
TY14-013	98	122	84	5	83.9	0.8	TY14-063	81	685	82	35	82	3
TY14-014	92	87	89	4	88.6	0.8	TY14-064	78	404	77	19	77	2
TY14-015	92	131	85	5	84.7	0.8	TY14-065	142	73	129	5	128	1
TY14-016	179	73	126	5	123	1	TY14-066	290	564	54	18	49	2
TY14-017	72	311	80	14	81	1	TY14-067	80	196	88	8	89	1
TY14-018	75	95	76	4	76	0.6	TY14-068	1 640	16	1 574	12	1 525	11
TY14-019	24	273	49	8	50	1	TY14-069	1 579	10	1 546	8	1 522	9
TY14-020	130	186	107	10	106	2	TY14-070	319	932	108	56	99	3
TY14-021	84	149	87	6	86.6	1	TY14-071	88	167	90	7	89.9	0.8
TY14-022	118	181	90	8	89	1	TY14-072	87	462	80	23	80	2
TY14-023	71	101	66	4	66.2	0.8	TY14-073	56	336	52	11	52	1
TY14-024	533	149	524	32	523	6	TY14-074	522	156	506	31	503	6
TY14-025	80	167	89	7	89	1	TY14-075	86	485	75	23	75	2
TY14-026	122	136	119	8	119	1	TY14-076	54	1 094	143	113	148	7
TY14-027	131	257	124	16	123	2	TY14-077	104	284	86	13	85	2
TY14-028	1 651	11	1 640	9	1 631	10	TY14-078	131	249	93	12	92	2
TY14-029	93	180	80	7	79	1	TY14-079	159	739	73	33	71	3
TY14-030	113	86	120	5	121	1	TY14-080	130	236	93	11	91	1
TY14-031	94	82	83	3	82.4	0.7	TY14-081	77	201	51	5	50.7	0.8
TY14-032	116	145	115	8	114	1	TY14-082	106	146	116	8	116	1
TY14-033	77	1 061	76	56	76	4	TY14-083	118	154	109	8	108	1
TY14-034	114	432	91	24	90	2	TY14-084	210	288	98	15	94	2
TY14-035	84	172	89	8	90	1	TY14-085	68	278	65	10	64	1
TY14-036	45	389	53	13	53	1	TY14-086	183	515	52	17	49	1
TY14-037	120	258	87	12	85	1	TY14-087	64	220	52	6	52	0.6
TY14-038	131	236	55	6	53.5	0.8	TY14-088	128	104	123	6	123	1
TY14-039	149	53	129	4	128	1	TY14-089	43	205	52	5	51.8	0.6
TY14-040	69	299	90	15	91	2	TY14-090	82	272	87	13	87	2
TY14-041	78	369	55	12	54	1	TY14-091	2 435	7	1 758	8	1 246	7
TY14-042	125	55	118	3	118	0.9	TY14-092	643	70	620	18	613	5
TY14-043	132	313	95	17	93	2	TY14-093	92	226	89	10	89	1
TY14-044	104	73	90	3	89.6	0.9	TY14-094	238	322	57	10	52.8	0.9
TY14-045	141	57	86	3	84	0.8	TY14-095	926	78	724	24	660	7
TY14-046	76	108	88	5	88.7	0.9	TY14-096	118	222	123	13	123	2
TY14-047	57	80	52	2	51.9	0.5	TY14-097	956	30	951	13	949	7
TY14-048	86	58	88	3	87.8	0.7	TY14-098	505	295	520	59	523	9
TY14-049	1 141	44	1 144	20	1 146	9	TY14-099	745	72	633	21	602	7
TY14-050	178	153	135	10	133	2	TY14-100	62	180	80	7	81	1
TY15
TY15-001	63	285	86	14	87	1	TY15-051	85	96	81	4	80.5	0.8
TY15-002	164	897	119	66	117	3	TY15-052	87	87	63	3	62.3	0.6
TY15-003	270	782	148	68	141	4	TY15-053	74	340	55	12	54	1
TY15-004	1 319	31	1 267	18	1 237	11	TY15-054	60	335	55	12	55	1
TY15-005	73	212	74	8	74	1	TY15-055	181	125	51	3	48.2	0.6
TY15-006	72	181	77	8	77	1	TY15-056	224	74	200	7	198	1
TY15-007	54	119	52	3	51.5	0.4	TY15-057	96	241	85	11	84	1
TY15-008	98	207	88	9	88	1	TY15-058	138	77	87	3	85	0.7
TY15-009	79	900	60	35	59	2	TY15-059	601	16	609	6	611	4
TY15-010	99	273	90	14	90	1	TY15-060	152	135	128	9	127	1
TY15-011	96	223	54	6	53.5	0.8	TY15-061	95	223	93	11	92	2
TY15-012	114	68	94	3	93.6	0.8	TY15-062	1 069	14	1 041	8	1 029	7
TY15-013	105	772	78	39	77	3	TY15-063	181	50	163	4	162	1
TY15-014	100	130	90	6	90	1	TY15-064	51	147	51	4	51.4	0.7
TY15-015	54	104	49	3	48.9	0.5	TY15-065	84	141	57	4	56.5	0.6
TY15-016	69	220	53	6	52.7	0.8	TY15-066	56	191	86	9	87	1
TY15-017	83	77	81	3	80.7	0.6	TY15-067	1 261	13	1 263	9	1 265	8
TY15-018	73	197	52	5	51.7	0.6	TY15-068	71	111	57	4	56.8	0.7
TY15-019	109	52	91	3	90.6	0.8	TY15-069	147	340	137	26	136	2
TY15-020	1 532	806	269	98	147	7	TY15-070	165	276	135	19	133	2
TY15-021	4 588	5	1 275	5	183	1	TY15-071	92	141	50	4	49.3	0.4
TY15-022	127	111	88	5	86	1	TY15-072	102	145	88	7	87.8	1
TY15-023	86	320	86	17	86	2	TY15-073	182	87	157	7	155	1
TY15-024	101	161	94	8	94	1	TY15-074	71	52	50	2	50	0.4
TY15-025	57	415	51	14	51	1	TY15-075	180	533	146	47	143	4
TY15-026	97	59	86	3	85.9	0.7	TY15-076	664	24	594	8	576	4
TY15-027	100	200	80	8	79	1	TY15-077	111	142	88	7	87	1
TY15-028	111	363	46	10	44.3	1	TY15-078	105	187	85	8	84.4	1
TY15-029	155	296	99	16	97	2	TY15-079	181	90	51	2	48.6	0.4
TY15-030	148	245	99	12	97	1	TY15-080	129	115	54	3	52.6	0.7
TY15-031	123	142	82	6	81	0.8	TY15-081	107	210	87	9	86	1
TY15-032	58	133	47	3	47	0.5	TY15-082	251	182	137	12	130	2
TY15-033	118	106	87	5	86.3	0.8	TY15-083	144	90	86	4	84	1
TY15-034	113	261	91	13	90	1	TY15-084	70	235	53	7	52.8	0.8
TY15-035	129	213	80	9	78	1	TY15-085	109	241	89	12	88	2
TY15-036	114	927	87	53	86	4	TY15-086	114	82	54	2	52.5	0.4
TY15-037	302	29	249	4	244	2	TY15-087	115	348	54	11	53.1	1
TY15-038	685	8	554	4	522	3	TY15-088	906	22	834	10	807	6
TY15-039	118	66	90	3	88.5	0.7	TY15-089	283	86	98	4	91	1
TY15-040	97	142	98	7	98	1	TY15-090	136	89	96	5	95	1
TY15-041	340	254	148	18	136	2	TY15-091	186	152	117	9	113	1
TY15-042	3 077	5	3 073	7	3 068	16	TY15-092	50	204	50	6	50.4	0.8
TY15-043	149	90	140	6	140	1	TY15-093	115	238	93	12	92	1
TY15-044	53	202	52	6	51.9	0.7	TY15-094	192	83	136	6	133	1
TY15-045	53	62	49	2	49.3	0.4	TY15-095	138	152	54	4	52.1	0.6
TY15-046	77	267	55	8	54.4	1	TY15-096	137	103	88	5	85.8	0.8
TY15-047	108	92	93	5	92	1	TY15-097	574	26	549	8	543	4
TY15-048	81	274	53	9	52	1	TY15-098	84	123	53	3	51.9	0.5
TY15-049	137	234	56	7	54.3	0.9	TY15-099	127	73	125	5	125	1
TY15-050	100	87	86	4	85.4	0.8	TY15-100	53	86	54	3	53.9	0.6
TY18
TY18-001	77	231	58	8	58	0.6	TY18-051	89	266	60	9	59	0.9
TY18-002	245	737	59	28	54	2	TY18-052	116	491	86	27	85	2
TY18-003	247	139	108	8	102	1	TY18-053	86	118	51	3	50.3	0.5
TY18-004	1 255	12	1 093	8	1 014	6	TY18-054	125	548	58	21	57	2
TY18-005	248	472	172	49	166	4	TY18-055	535	32	462	8	448	3
TY18-006	1 251	15	1 215	10	1 195	8	TY18-056	1 761	5	1 798	6	1 831	10
TY18-007	1 488	52	1 287	29	1 170	11	TY18-057	172	387	78	19	75	2
TY18-008	68	118	48	3	47.8	0.5	TY18-058	99	231	56	7	55.1	0.7
TY18-009	721	49	648	16	627	5	TY18-059	3 170	5	2 979	7	2 704	14
TY18-010	155	183	110	11	108	1	TY18-060	125	73	121	5	120	1
TY18-011	119	465	57	18	56	2	TY18-061	235	163	136	11	130	2
TY18-012	268	72	265	10	265	2	TY18-062	175	142	96	7	92.4	1
TY18-013	244	406	58	15	53	1	TY18-063	103	747	55	28	54	2
TY18-014	132	74	89	4	87.6	0.8	TY18-064	150	282	128	20	127	2
TY18-015	619	18	516	6	493	3	TY18-065	108	142	55	4	53.7	0.6
TY18-016	2 613	6	2 553	8	2 478	14	TY18-066	24	283	19	3	18.6	0.3
TY18-017	429	79	356	13	345	3	TY18-067	197	868	63	35	59	2
TY18-018	257	142	92	7	86	1	TY18-068	179	155	169	13	168	2
TY18-019	85	71	51	2	50.5	0.5	TY18-069	641	46	601	13	590	5
TY18-020	1 618	21	1 620	15	1 621	11	TY18-070	126	145	52	4	50	0.6
TY18-021	3 528	130	1 047	71	265	6	TY18-071	688	39	703	14	707	7
TY18-022	154	337	85	17	82	1	TY18-072	2 345	6	2 361	8	2 381	14
TY18-023	2 063	12	2 051	12	2 039	15	TY18-073	128	258	94	13	93	1
TY18-024	208	52	207	6	207	1	TY18-074	126	193	52	6	50.3	1
TY18-025	957	44	897	18	873	6	TY18-075	70	46	233	6	250	2
TY18-026	1 872	6	1 837	7	1 806	10	TY18-076	109	132	89	6	89	1
TY18-027	111	115	88	6	88	1	TY18-077	299	142	264	17	260	3
TY18-028	267	488	126	37	119	3	TY18-078	1 668	10	1 499	9	1 383	8
TY18-029	264	88	136	6	129	1	TY18-079	1 787	7	1 604	7	1 469	9
TY18-030	68	348	52	12	51.7	0.9	TY18-080	183	239	103	13	100	1
TY18-031	250	52	179	5	174	1	TY18-081	680	81	615	22	598	6
TY18-032	574	110	459	23	437	5	TY18-082	968	30	982	15	988	9
TY18-033	67	422	65	18	65	1	TY18-083	762	14	708	6	691	4
TY18-034	158	296	57	10	54.6	1	TY18-084	483	60	228	7	204	1
TY18-035	117	273	96	15	95	2	TY18-085	114	67	94	3	93	0.9
TY18-036	162	129	53	4	50.2	0.7	TY18-086	1 166	50	937	20	843	7
TY18-037	85	36	85	2	85.6	0.6	TY18-087	1 140	9	939	6	856	5
TY18-038	264	475	133	38	126	3	TY18-088	158	132	95	7	93	1
TY18-039	97	64	51	2	50	0.5	TY18-089	1 950	407	279	61	122	5
TY18-040	2 176	5	2 149	6	2 121	11	TY18-090	101	326	97	20	97	2
TY18-041	130	155	90	7	88	1	TY18-091	176	372	82	19	79	2
TY18-042	791	59	775	21	770	8	TY18-092	56	241	52	7	52.4	0.6
TY18-043	601	87	565	22	556	6	TY18-093	504	39	474	10	468	3
TY18-044	517	107	495	23	490	5	TY18-094	127	65	90	3	88.2	0.7
TY18-045	4 395	6	1 701	8	355	3	TY18-095	201	332	126	24	123	2
TY18-046	311	119	263	15	257	3	TY18-096	2 178	6	2 137	7	2 095	12
TY18-047	1 670	12	1 583	10	1 520	10	TY18-097	261	26	216	3	212	1
TY18-048	766	64	754	21	750	6	TY18-098	158	121	95	6	92.5	0.9
TY18-049	617	107	497	24	472	5	TY18-099	121	113	100	6	99	1
TY18-050	123	475	68	21	66	2	TY18-100	1 842	6	1 541	6	1 332	7
TY20
TY20-001	58	106	50	3	50	0.6	TY20-051	143	372	130	28	129	3
TY20-002	50	60	49	2	49.4	0.4	TY20-052	213	167	98	7	94	1
TY20-003	567	35	531	9	523	4	TY20-053	84	143	86	6	86.2	0.9
TY20-004	57	89	50	2	50.2	0.4	TY20-054	59	139	54	4	53.8	0.7
TY20-005	108	131	96	6	95.2	1	TY20-055	76	116	51	3	50.1	0.6
TY20-006	180	52	136	4	133	1	TY20-056	76	102	51	3	50.1	0.5
TY20-007	53	299	54	10	54	1	TY20-057	143	166	122	10	121	1
TY20-008	209	124	121	7	116	2	TY20-058	131	275	122	17	122	2
TY20-009	147	228	132	14	132	2	TY20-059	574	55	550	14	544	5
TY20-010	93	402	58	14	57	1	TY20-060	80	402	86	21	86	2
TY20-011	110	362	96	20	95	2	TY20-061	49	222	51	6	51.1	0.8
TY20-012	74	155	82	6	81.9	0.8	TY20-062	91	201	88	9	88	1
TY20-013	55	266	55	8	55.4	0.7	TY20-063	124	95	131	6	132	1
TY20-014	59	94	52	3	52.3	0.5	TY20-064	85	52	84	2	83.6	0.6
TY20-015	64	689	62	27	62	2	TY20-065	130	130	130	8	130	2
TY20-016	64	95	51	3	50.8	0.4	TY20-066	80	74	84	3	84.5	0.8
TY20-017	120	1 325	76	85	75	5	TY20-067	134	1 165	82	74	80	5
TY20-018	100	305	88	16	88	2	TY20-068	105	330	127	23	128	2
TY20-019	139	117	91	5	89.3	1	TY20-069	1 132	39	1 087	12	1 065	7
TY20-020	134	193	138	13	138	3	TY20-070	47	416	53	14	53	1
TY20-021	91	146	91	7	91	1	TY20-071	99	131	90	6	89	1
TY20-022	3 404	6	3 404	8	3 405	19	TY20-072	90	362	76	16	75	1
TY20-023	128	210	133	14	133	2	TY20-073	70	121	55	4	54.6	0.7
TY20-024	67	263	79	11	79	2	TY20-074	144	864	137	68	136	5
TY20-025	977	12	979	7	980	6	TY20-075	59	233	86	10	87	1
TY20-026	120	64	124	4	125	1	TY20-076	121	239	86	10	85	1
TY20-027	66	136	57	4	57.2	0.7	TY20-077	80	1 161	49	45	48	3
TY20-028	127	81	131	5	131	1	TY20-078	115	155	123	9	123	2
TY20-029	100	90	90	4	89.4	0.9	TY20-079	52	93	49	2	48.5	0.5
TY20-030	143	127	132	8	132	2	TY20-080	86	229	98	11	99	1
TY20-031	94	336	98	20	98	2	TY20-081	157	139	134	9	132	2
TY20-032	123	95	131	6	131	2	TY20-082	89	126	87	5	86.5	0.9
TY20-033	126	1 451	99	130	98	7	TY20-083	82	81	86	4	85.9	0.8
TY20-034	965	14	959	8	957	6	TY20-084	51	215	49	5	49.3	0.6
TY20-035	117	79	122	5	122	1	TY20-085	31	118	53	3	53.8	0.6
TY20-036	1 106	14	1 106	8	1 106	7	TY20-086	43	613	81	31	82	2
TY20-037	58	286	56	9	56	1	TY20-087	100	147	88	6	87.2	1
TY20-038	103	462	89	26	89	2	TY20-088	155	67	86	3	83.1	0.8
TY20-039	59	294	85	15	86	2	TY20-089	224	112	88	5	83.6	0.8
TY20-040	184	445	135	34	132	3	TY20-090	98	105	90	5	89.7	0.9
TY20-041	84	277	50	8	49	1	TY20-091	52	71	80	3	81	0.8
TY20-042	47	205	51	5	51.1	0.8	TY20-092	64	238	56	7	55.4	0.8
TY20-043	109	83	88	4	87.3	1	TY20-093	105	237	88	11	87	2
TY20-044	113	237	116	13	117	1	TY20-094	2 590	8	2 538	9	2 475	15
TY20-045	36	213	56	6	56.7	0.7	TY20-095	80	217	81	8	81	1
TY20-046	81	437	85	23	85	3	TY20-096	121	267	92	13	91	2
TY20-047	123	492	79	25	78	3	TY20-097	68	338	89	18	89	2
TY20-048	88	132	92	6	92	1	TY20-098	1 418	12	1 411	9	1 407	9
TY20-049	140	265	132	18	131	3	TY20-099	893	58	864	22	854	9
TY20-050	526	170	525	35	524	7	TY20-100	195	508	134	40	130	3

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