The genesis， age and its paleoclimatic significance of loess-like sediments in the Huatan section of the dry-hot valley of the Jinsha River

doi:10.7522/j.issn.1000-694X.2021.00218

Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (4): 60-70.DOI: 10.7522/j.issn.1000-694X.2021.00218

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The genesis， age and its paleoclimatic significance of loess-like sediments in the Huatan section of the dry-hot valley of the Jinsha River

Fenliang Liu¹(), Hongshan Gao², Baotian Pan², Zongmeng Li³

^1.Department of Geographic Information System Science，Hunan City University，Yiyang 413000，Hunan，China
^2.Ministry of Education Key Laboratory of Western China's Environmental Systems / College of Earth and Environmental Sciences，Lanzhou University，Lanzhou 730000，China
^3.School of Geographic Sciences，Xinyang Normal University，Xinyang 464000，Henan，China

Received:2021-10-21 Revised:2021-12-08 Online:2022-07-20 Published:2022-08-29

Abstract

Abstract:

Loess-like sediments are widely developed in the dry-hot valley of the Jinsha River， which is a good carrier for interpreting the southwest monsoon and the environmental evolution of the dry-hot valley of the Jinsha River. However， its genesis and formation time are still unclear. Through the analysis of the grain size and deposition rate of loess-like sediments at different altitudes in the Huatan section of the Jinsha River Valley， it is found that the higher the altitude， the smaller the particle size and the lower the deposition rate of the loess-like sediment. Combined with previous research results， it is further confirmed that the loess-like sediments is a near-source aeolian deposit derived from the floodplain deposition and the ancient dammed lake deposits at the bottom of Jinsha River Valley， and the local valley wind circulation in Jinsha River Valley provides transportation power for it. Through optical luminescence dating and magnetostratigraphic analysis， it is determined that the loess-like sediments in the dry-hot valley of the Huatan section of the Jinsha River Valley was formed in the middle of the Middle Pleistocene， which approximately consistent with or later than the time of massive accumulation of ancient dammed lake deposits in the valley. The consistency of the temporal and spatial distribution of the loess-like sediments and the ancient dammed lake deposits in the Jinsha River Valley indicates that the landslide damming event controls the provenance of the loess-like sediments in the dry-hot valley of the Jinsha River， and is one of the main factors affecting the deposition process of the loess-like sediments. The grain size and chemical weathering index of loess-like sediments indicate that the valley wind， environment and climate have changed significantly since 358 ka BP， and responded to global climate change on the glacial-interglacial scale. In the future， it is necessary to strengthen the study on the relationship between loess-like sediments and ancient dammed lake in deep valleys of southwest China.

Key words: loess-like sediment, genesis, formation time, Huatan, Jinsha River

CLC Number:

P931.1

Fenliang Liu, Hongshan Gao, Baotian Pan, Zongmeng Li. The genesis， age and its paleoclimatic significance of loess-like sediments in the Huatan section of the dry-hot valley of the Jinsha River[J]. Journal of Desert Research, 2022, 42(4): 60-70.

Figures/Tables 8

Fig.1 Spatial distribution and field photographs of the loess-like sediments in the Jinsha River Valley

Fig.2 Spatial distribution of loess-like sediments and dammed lake sediments （A） and river terrace and loess profile （B） in the Huatan section of Jinsha River Valley

Table 1 Quartz OSL ages and their related parameters for loess-like sediments samples of the Huatan section of Jinsha River Valley

样品编号	海拔 /m	深度 /m	K /%	Th /(mg·kg^-1)	U /(mg·kg^-1)	含水量 /%	剂量率 /(Gy·ka^-1)	等效剂量 /Gy	年代 /ka
Lzu1131	665	1.2	1.57±0.05	8.14±0.26	2.02±0.08	10±5	2.73±0.14	0.60±0.03	0.22±0.02
Lzu1132	765	2.0	1.67±0.05	12.2±0.34	2.67±0.10	10±5	3.16±0.17	37.48±2.86	11.86±1.12
Lzu1133	865	2.5	1.56±0.05	12.6±0.35	2.92±0.11	10±5	3.16±0.18	65.19±1.61	20.67±1.26
Lzu1134	1 050	5.0	1.78±0.06	13.4±0.36	2.45±0.10	10±5	3.32±0.18	214.25±12.70	64.50±5.24
Lzu1135	1 355	5.0	1.89±0.06	14.0±0.38	2.46±0.10	20±5	3.06±0.16	248.23±21.53	81.23±8.24
Lzu1136	1 351	9.0	2.05±0.06	13.8±0.37	2.85±0.11	20±5	3.15±0.17	386.08±14.68	122.71±8.12

Fig.3 Progressive thermal demagnetization and orthogonal projecting plots for representative samples of the Huatan section of Jinsha River Valley

Fig.4 Measurement results of paleo magnetism， Md curve and CIA curve of loess-like deposit section on sixth terrace of the Huatan section of Jinsha River Valley， compared to the Greenland ice core record and global marine oxygen isotope climate record

Fig.5 Grain-size distribution curves of the loess-like sediments samples in different altitudes of the Huatan section of Jinsha River Valley

Fig.6 The change of mean size， median size （A） and deposition rates （B） of the loess-like sediments with altitude in the Qiaojia section of the Jinsha River Valley

Fig.7 Formation model of the loess-like sediments in the Qiaojia section of the Jinsha River Valley. The left column is the development process of loess-like sediments from the river valley longitudinal section view， and the right is the development process of loess-like sediments from the river valley cross section view

References 50

1	刘东生.黄土与环境［M］.北京：科学出版社，1985.
2	Pye K.The nature，origin and accumulation of loess［J］.Quaternary Science Reviews，1995，14：653-667.
3	李秉成，孙建中.中国黄土与环境［M］.西安：陕西科学技术出版社，2005.
4	Li Y R， Shi W H， Aydin A，et al.Loess genesis and worldwide distribution［J］.Earth-Science Reviews，2020，201：102947.
5	Fan M， Feng R， Geissman J W，et al.Late Paleogene emergence of a North American loess plateau［J］.Geology，2020，48：273-277.
6	孙继敏.黄土沉积与地球圈层相互作用［J］.第四纪研究，2020，40（1）：1-7.
7	Heller F， Liu T S.Magnetostratigraphical dating of loess deposits in China［J］.Nature，1982，300：431-433.
8	Burbank D W， Li J J.Age and palaeoclimatic significance of the loess of Lanzhou，north China［J］.Nature，1985，316：429-431.
9	Kukla G J， Heller F， Liu X M，et al.Pleistocene climates in China dating by magnetic susceptibility［J］.Geology，1988，16：811-814.
10	An Z S， Kukla G J， Porter S C，et al.Magnetic susceptibility evidence of monsoon variation on the Loess Plateau of central China during the last 130，000 years［J］.Quaternary Research，1991，36：29-36.
11	鹿化煜，安芷生.洛川黄土地层定年的一个模式及其初步应用［J］.沉积学报，1997，15（3）：150-152.
12	Sun J M.Source regions and formation of the loess sediments on the high mountain regions of northwestern China［J］.Quaternary Research，2002，58（3）：341-351.
13	Sun J M.Provenance of loess material and formation of loess deposits on the Chinese Loess Plateau［J］.Earth and Planetary Science Letters，2002，203：845-859.
14	Sun Y B， An Z S.Late Pliocene-Pleistocene changes in mass accumulation rates of eolian deposits on the central Chinese Loess Plateau［J］.Journal of Geophysical Research，2005，110（D23）：D23101.
15	Pullen A， Kapp P， Mccallister A T，et al.Qaidam Basin and northern Tibetan Plateau as dust sources for the Chinese Loess Plateau and paleoclimatic implications［J］.Geology，2011，39（11）：1031-1034.
16	Nie J S， Stevens T， Rittner M，et al.Loess plateau storage of northeastern Tibetan plateau-derived Yellow River sediment［J］.Nature Communications，2015，6（1）：1-10.
17	杨达源.中国东部的第四纪风尘堆积与季风变迁［J］.第四纪研究，1991（4）：354-360.
18	Qiao Y S， Guo Z T， Hao Q Z，et al.Loess-soil sequences in southern Anhui Province：magnetostratigraphy and paleoclimatic significance［J］.Chinese Science Bulletin，2003，48：2088-2093.
19	Wang X Y， Lu H Y， Zhang H Z，et al.Distribution，provenance，and onset of the Xiashu Loess in Southeast China with paleoclimatic implications［J］.Journal of Asian Earth Sciences，2018，155：180-187.
20	Li X S， Han Z Y， Lu H Y，et al.Onset of Xiashu loess deposition in southern China by 0.9 Ma and its implications for regional aridification［J］.Science China Earth Sciences，2018，61（3）：256-269.
21	Han L， Hao Q， Qiao Y，et al.Geochemical evidence for provenance diversity of loess in southern China and its implications for glacial aridification of the northern subtropical region［J］.Quaternary Science Reviews，2019，212：149-163.
22	Jiang Q D， Hao Q Z， Peng S Z，et al.Grain-size evidence for the transport pathway of the Xiashu loess in northern subtropical China and its linkage with fluvial systems［J］.Aeolian Research，2020，46：100613.
23	张虎才.武都黄土堆积及晚更新世以来环境变迁研究［J］.兰州大学学报（自然科学版），1997，33（1）：105-114.
24	Fang X M， Lü L Q， Yang S L，et al.Loess in Kunlun Mountain and its implications on desert development and Tibetan Plateau uplift in west China［J］.Science in China （Series D），2002，45（4）：289-299.
25	Lehmkuhl F， Klinge M， ReesJones J，et al.Late Quaternary aeolian sedimentation in central and south-eastern Tibet［J］.Quaternary International，2000，68/71：117-132.
26	Sun J M， Li S H， Muhs D R，et al.Loess sedimentation in Tibet：provenance，processes，and link with Quaternary glaciations［J］.Quaternary Science Reviews，2007，26：2265-2280.
27	Guan Q Y， Pan B T， Gao H S，et al.Geochemical evidence of the Chinese loess provenance during the Late Pleistocene［J］.Palaeogeography，Palaeoclimatology，Palaeoecology，2008，270：53-58.
28	Lai Z P， Kaiser K， Bruckne H.Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history［J］.Quaternary Research，2009，72：421-430.
29	Guo B， Peng T， Yu H，et al.Magnetostratigraphy and palaeoclimatic significance of the late pliocene red clay：quaternary loess sequence in the Lanzhou Basin，Western Chinese Loess Plateau［J］.Geophysical Research Letters，2020，47（3）：GL086566.
30	Li X M， Peng T J， Ma Z H，et al.The sources and transport dynamics of eolian sediments in the NE Tibetan Plateau since 6.7 Ma［J］.Geochemistry，Geophysics，Geosystems，2020，21（3）：GC008682.
31	Yang S， Liu L， Chen H，et al.Variability and environmental significance of organic carbon isotopes in Ganzi loess since the last interglacial on the eastern Tibetan Plateau［J］.CATENA，2021，196：104866.
32	曾方明，薛红盼.青藏高原东北部晚第四纪黄土-古土壤的元素组成及其物源指示［J］.中国沙漠，2020，40（6）：105-117.
33	周笃珺，马海州，高东林，等.青海湖南岸全新世黄土地球化学特征及气候环境意义［J］.中国沙漠，2004，24（2）：32-36.
34	张荣祖.横断山区干旱河谷［M］.北京：科学出版社，1992.
35	汪阳春，柴宗新，刘淑珍，等.横断山地区的黄土及意义［J］.山地学报，1999（4）：300-304.
36	罗光照，沈林.云南涛源黄土的成因及湿陷性［J］.工程勘察，1984（5）：14-16.
37	蒋复初，吴锡浩，王书兵，等.金沙江巧家段河谷黄土状堆积的时代问题［J］.地质力学学报，1999（4）：37-42.
38	陈杰，史正涛，苏怀，等.巧家盆地黄土的粒度特征及其成因分析［J］.云南地理环境研究，2009，21（3）：46-52.
39	叶玉林，苏怀，董铭，等.元素和矿物组成揭示的金沙江干热河谷黄土状物质的物源［J］.地球环境学报，2018，9（3）：238-244.
40	Pan B T， Guan Q Y， Gao H S，et al.The origin and sources of loess-like sediment in the Jinsha River valley，SW China［J］.Boreas，2014，43（1）：121-131.
41	Wang H Y， Tong K Y， Hu G，et al.Dam and megafloods at the First Bend of the Yangtze River since the Last Glacial Maximum［J］.Geomorphology，2021，373：107491.
42	徐则民.金沙江寨子村滑坡坝堰塞湖沉积及其对昔格达组地层成因的启示［J］.地质论评，2011（5）：69-80.
43	刘芬良，高红山，李宗盟，等.金沙江巧家-蒙姑段的阶地发育与河谷地貌演化［J］.地理学报，2020，75（5）：1095-1105.
44	刘芬良，高红山，李宗盟，等.金沙江龙街段晚更新世以来的阶地发育与河谷地貌演化［J］.地球科学进展，2020，35（4）：431-440.
45	孙东怀，鹿化煜， Rea D，等.中国黄土粒度的双峰分布及其古气候意义［J］.沉积学报，2000（3）：327-335.
46	Smalley I， O'Hara-Dhand K， Wint J，et al.Rivers and loess：the significance of long river transportation in the complex event-sequence approach to loess deposit formation［J］.Quaternary International，2009，198：7-18.
47	靳鹤龄，董光荣，张春来.雅鲁藏布江河谷黄土的沉积特征及成因［J］.中国沙漠，2000，20（1）：15-20.
48	刘慧，李晓英，夏翠珍，等.雅鲁藏布江河谷加查-米林段沙丘成因［J］.中国沙漠，2020，40（3）：16-26.
49	Dansgaard W， Johnsen S J， Clausen H B，et al.Evidence for general instability of past climate from a 250-kyr ice-core record［J］.Nature，1993，364：218-220.
50	Lisiecki L E， Raymo M E.A Pliocene-Pleistocene stack of 57 globally distributed benthic δ ¹⁸O records［J］.Paleoceanography，2005，20（1）： PA1003.

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The genesis， age and its paleoclimatic significance of loess-like sediments in the Huatan section of the dry-hot valley of the Jinsha River

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