Geochemical characteristics of holocene lacustrine sediments in Gangouzi section and its sedimentary sources in the Salawusu River Valley

doi:10.7522/j.issn.1000-694X.2021.00125

Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (1): 114-122.DOI: 10.7522/j.issn.1000-694X.2021.00125

Geochemical characteristics of holocene lacustrine sediments in Gangouzi section and its sedimentary sources in the Salawusu River Valley

Weixin Zhou¹^,²(), Xiaohao Wen¹(), Baosheng Li¹^,³, Chen Wang¹, Mengyuan Tian¹, Mingqun Qiu¹

^1.School of Geography，South China Normal University，Guangzhou 510631，China
^2.Zhuzhou Eighth Middle School，Zhuzhou 412008，Hunan，China
^3.State Key Laboratory of Loess and Quaternary Geology，Institute of Earth Environment，Chinese Academy of Sciences，Xi’an 710061，China

Received:2021-06-16 Revised:2021-10-09 Online:2022-01-20 Published:2022-01-28
Contact: Xiaohao Wen

Abstract

Abstract:

In order to explore the source and sedimentary environment of lacustrine sediments in the middle and upper reaches of Salawusu River Valley， the ages of three dating samples and the contents of chemical elements in 113 samples were measured， the origin of sediments reflected by the geochemical characteristics of Gangouzi section was analyzed， and the changes of sedimentary environment since Holocene was discussed. The results show that the contents of CaO， MgO， Sr， Cl and Br change dramatically with the boundary of 110 cm in the vertical direction of the section， showing obvious low value at 250-110 cm， and obvious high value at 110-0 cm. The change of provenance is the main reason for the significant increase of CaO， MgO， Sr， Cl， Br at the depth of 110-0 cm： The paleo-lake in the 12-6.7 Cal.ka B.P. （250-110 cm） was a relatively closed environment， and its provenance was mainly influenced by the source of surrounding dunes； in the 6.7-2.2 Cal. ka B.P. （110-0 cm）， the lake changed into a semi-closed environment， the river （upper reaches of the Salawusu River of today） rises in Baiyu Mountain（in the northern Loess Plateau） and into the south of the lake， its material source is profoundly influenced by the material of the loess brought in by the river.

Key words: Salawusu River Valley, Holocene, gangouzi section, geochemical element, provenance

CLC Number:

P532

Weixin Zhou, Xiaohao Wen, Baosheng Li, Chen Wang, Mengyuan Tian, Mingqun Qiu. Geochemical characteristics of holocene lacustrine sediments in Gangouzi section and its sedimentary sources in the Salawusu River Valley[J]. Journal of Desert Research, 2022, 42(1): 114-122.

Figures/Tables 8

References 21

1	O'brien S R，Mayewski P A，Meeker L D，et al.Complexity of Holocene climate as reconstructed from a Greenland ice core［J］.Science，1995，270（5244）：1962-1964.
2	张振克，吴瑞金，王苏民.岱海湖泊沉积物频率磁化率对历史时期环境变化的反映［J］.地理研究，1998（3）：74-79.
3	孙建中.黄土高原第四纪［M］.北京：科学出版社，1991.
4	Wang S Y，Lü H Y，Liu J Q，et al.The early Holocene optimum inferred from a high-resolution pollen record of Huguangyan Maar Lake in southern China［J］.Chinese Science Bulletin，2007，52（20）：2829-2836.
5	Hu C，Henderson G M，Huang J，et al.Quantification of Holocene Asian monsoon rainfall from spatially separated cave records［J］.Earth and Planetary Science Letters，2008，266（3/4）：221-232.
6	王绍武.全新世北大西洋冷事件：年代学和气候影响［J］.第四纪研究，2009，29（6）：1146-1153.
7	洪业汤，姜洪波.近5 000 a的气候波动与太阳变化［J］.中国科学（D辑），1998，28（6）：491-497.
8	张宇红，李保生，靳鹤龄，等.萨拉乌苏河流域150 ka BP以来的粒度旋回［J］.地理学报，2001（3）：332-344.
9	罗开利，李保生，余雪飞，等.150 ka B.P.以来萨拉乌苏河流域的CaCO₃旋回［J］.地理科学，2002，22（6）：683-688.
10	李后信，李保生，祝一志，等.150 ka B.P.以来萨拉乌苏河流域主元素变动旋回［J］.地球化学，2002（5）：424-432.
11	舒培仙，李保生，牛东风，等.毛乌素沙漠东南缘滴哨沟湾剖面DGS1层段粒度特征及其指示的全新世气候变化［J］.地理科学，2016，36（3）：448-457.
12	王丰年，李保生，牛东风，等.毛乌素沙漠东南缘DGS1层段CaCO₃记录的全新世气候变化［J］.地球环境学报，2015，6（3）：145-153.
13	中国大百科全书总编辑委员会《中国地理》编辑委员会.中国大百科全书：中国地理［M］.北京：中国大百科全书出版社，1993.
14	杨永梅，杨改河，冯永忠.近45年毛乌素沙地的气候变化及其与沙漠化的关系［J］.西北农林科技大学学报（自然科学版），2007（12）：87-92.
15	王丰年，李保生，牛东风，等.萨拉乌苏河流域MGS1层段粒度与CaCO₃记录的全新世千年尺度的气候变化［J］.中国沙漠，2012，32（2）：331-339.
16	关有志，陈振英，贾惠兰.萨拉乌苏河地区第四纪地层中的元素分布与古气候［J］.中国沙漠，1986，6（1）：36-39，45.
17	Li B S，Zhang D D，Jin H L，et al.Paleomonsoon activities of Mu Us Desert，China since 150 ka B.P.：a study of the stratigraphic sequences of the Milanggouwan Section，Salawusu River area［J］.Palaeogeography，Palaeoclimatology，Palaeoecology，2000，162（1）：112-128.
18	董光荣，李保生，陈永志.萨拉乌苏河晚第四纪地质与古人类综合研究［M］.北京：科学出版社，2017.
19	李想.毛乌素沙地全新世气候变化与地貌演化初步研究［D］.太原：山西大学，2020.
20	张虎才.元素表生地球化学特征及理论基础［M］.兰州：兰州大学出版社，1997.
21	毛庆飞.内蒙古腾格里沙漠盐湖元素及同位素地球化学研究［D］.北京：中国科学院大学.

样品编号	深度/cm	实验室编号	测定材料	δ¹³C/‰	¹⁴C年代(B.P.)/a	校正年龄(B.P.)/a
GGZ-AMS1	0	Beta-485458	有机质	-23.30	2260±30	2 200±100
GGZ-AMS2	50	Beta-504593	有机质	-22.60	3880±30	4 300±200
GGZ-AMS3	226	Beta-485461	有机质	-24.80	9740±30	11 200±100

样品编号	深度/cm	实验室编号	测定材料	δ¹³C/‰	¹⁴C年代(B.P.)/a	校正年龄(B.P.)/a
GGZ-AMS1	0	Beta-485458	有机质	-23.30	2260±30	2 200±100
GGZ-AMS2	50	Beta-504593	有机质	-22.60	3880±30	4 300±200
GGZ-AMS3	226	Beta-485461	有机质	-24.80	9740±30	11 200±100

沉积层段	数值类型	SiO₂	CaO	Al₂O₃	MgO	TFe	Na₂O	K₂O	TiO₂
0—110 cm	最大值	93.52	29.93	10.06	6.23	1.50	2.63	2.10	0.29
	最小值	30.54	0.87	4.50	0.46	3.90	0.83	0.91	0.12
	平均值	44.06	18.67	7.04	3.62	2.26	1.58	1.43	0.19
110—250 cm	最大值	89.57	1.05	11.02	1.23	3.90	2.63	2.56	0.29
	最小值	68.58	0.72	6.84	0.14	0.70	1.43	2.02	0.16
	平均值	77.90	0.83	9.47	0.67	1.99	1.64	2.27	0.22
全剖面	最大值	93.52	29.93	11.02	6.23	3.90	2.63	2.56	0.30
	最小值	30.54	0.72	4.50	0.14	0.70	0.83	0.91	0.13
	平均值	60.84	9.82	8.24	2.15	2.12	1.61	1.84	0.20
	标准偏差	19.21	10.12	1.66	1.86	0.68	0.39	0.48	0.04
	变异系数	0.32	1.03	0.20	0.87	0.32	0.24	0.26	0.20

沉积层段	数值类型	SiO₂	CaO	Al₂O₃	MgO	TFe	Na₂O	K₂O	TiO₂
0—110 cm	最大值	93.52	29.93	10.06	6.23	1.50	2.63	2.10	0.29
	最小值	30.54	0.87	4.50	0.46	3.90	0.83	0.91	0.12
	平均值	44.06	18.67	7.04	3.62	2.26	1.58	1.43	0.19
110—250 cm	最大值	89.57	1.05	11.02	1.23	3.90	2.63	2.56	0.29
	最小值	68.58	0.72	6.84	0.14	0.70	1.43	2.02	0.16
	平均值	77.90	0.83	9.47	0.67	1.99	1.64	2.27	0.22
全剖面	最大值	93.52	29.93	11.02	6.23	3.90	2.63	2.56	0.30
	最小值	30.54	0.72	4.50	0.14	0.70	0.83	0.91	0.13
	平均值	60.84	9.82	8.24	2.15	2.12	1.61	1.84	0.20
	标准偏差	19.21	10.12	1.66	1.86	0.68	0.39	0.48	0.04
	变异系数	0.32	1.03	0.20	0.87	0.32	0.24	0.26	0.20

沉积层段	数值类型	Sr	P	Zr	Cl	Rb	V	Zn	Co	Cu	Pb	Nb	Br
0—110 cm	最大值	1 371	625	195	1129	76	62	13.2	17.7	21.4	15	9.9	9.9
	最小值	140	117	78	0	32	23	51.6	3.5	6.9	5	5.6	0.9
	平均值	908.52	318.05	112.27	190.25	48.95	44.89	26.08	6.18	12.89	8.68	7.16	3.18
110—250 cm	最大值	152	521	226	205	84	60	38.8	29	18.9	18	11.7	1.4
	最小值	136	172	112	0	58	30	8.6	13.1	4.2	7	8.0	1.2
	平均值	141.29	275.63	172.78	89.07	69.98	42.31	21.27	18.93	9.69	11.85	9.50	1.24
全剖面	最大值	1 371	625	226	1129	84	62	51.6	29.0	21.4	18	11.7	9.9
	最小值	136	117	78	0	32	23	7.0	3.5	4.2	5	5.6	0.9
	平均值	528.36	297.30	142.25	139.41	59.37	43.61	23.70	12.50	11.30	10.25	8.32	2.22
	标准偏差	447.93	117.54	39.02	193.51	13.31	8.19	9.11	7.05	4.01	2.86	1.51	1.84
	变异系数	0.85	0.40	0.27	1.39	0.22	0.19	0.38	0.56	0.35	0.28	0.18	0.82

Geochemical characteristics of holocene lacustrine sediments in Gangouzi section and its sedimentary sources in the Salawusu River Valley

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元素	主成分
元素	1	2	3
SiO₂	0.94
CaO	-0.98
MgO	-0.76
Al₂O₃	0.90
K₂O	0.98
TiO₂	0.58
Sr	-0.91
Co	0.90
Rb	0.94
Zr	0.89
Nb	0.91
Pb	0.69
TFe		0.83
Na₂O		0.79
P		0.86
V		0.83
Cu		0.89
Zn		0.94
Cl			0.83
Br			0.69

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