Quantitative palaeogeographic reconstruction of the Early Carboniferous Jiujialu Formation bauxite in central Guizhou Province: a sedimentary metallogenic perspective

doi:10.7605/gdlxb.2026.001

Journal of Palaeogeography（Chinese Edition） ›› 2026, Vol. 28 ›› Issue (1): 1-24. doi: 10.7605/gdlxb.2026.001

• SPECIAL TOPIC ON THE 100TH ANNIVERSARY OF PROFESSOR FENG ZENGZHAO • Previous Articles Next Articles

Quantitative palaeogeographic reconstruction of the Early Carboniferous Jiujialu Formation bauxite in central Guizhou Province: a sedimentary metallogenic perspective

DU Yuansheng¹(), PANG Dawei²^,³, YU Wenchao¹, CHEN Qun⁴, DENG Xusheng⁵, LEI Zhiyuan⁶, WU Bo⁵, DAI Xiaoyan⁴, DENG Keyong⁵, ZHOU Jintao¹, MO Hongcheng¹, CHENG Long¹

1 China University of Geosciences(Wuhan),Wuhan 430074,China
2 Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006,China
3 China National Engineering Research Center for Utilization of Industrial Minerals,Zhengzhou 450006,China
4 No.115 Geological Party,Guizhou Bureau of Geology and Mineral Exploration and Development,Guizhou Qingzhen 551400,China
5 Guizhou Geological Survey Institute,Guiyang 550018,China
6 Guizhou Bureau of Geology and Mineral Resources,Guiyang 550004,China

Received:2025-07-28 Revised:2025-09-05 Online:2026-02-01 Published:2026-02-09
About author:
DU Yuansheng,born in 1958,is a professor and doctoral supervisor at China University of Geosciences(Wuhan). His research focuses on sedimentary geology. E-mail: duyuansheng126@126.com.
Supported by:
National Key Research and Development Program of China(2022YFF0800200); Key Program of the Guizhou Basic Research Program(Natural Science)(ZD(2025)004)

基于定量古地理重建的黔中下石炭统九架炉组铝土矿矿产沉积学研究^*

杜远生¹(), 庞大卫²^,³, 余文超¹, 陈群⁴, 邓旭升⁵, 雷志远⁶, 吴波⁵, 戴晓燕⁴, 邓克勇⁵, 周锦涛¹, 莫洪成¹, 成龙¹

1 中国地质大学(武汉),湖北武汉 430074
2 中国地质科学院郑州矿产综合利用研究所,河南郑州 450006
3 国家非金属矿资源综合利用工程技术研究中心,河南郑州 450006
4 贵州省地质矿产勘查开发局115地质大队,贵州清镇 551400
5 贵州省地质调查院,贵州贵阳 550018
6 贵州省地质矿产局,贵州贵阳 550004

作者简介:
杜远生,男,1958年生,中国地质大学(武汉)教授,博士生导师,主要从事沉积地质学研究。E-mail: duyuansheng126@126.com。
基金资助:
*国家重点研发计划项目(2022YFF0800200); 贵州基础研究计划(自然科学)重点项目(ZD(2025)004)

Abstract

Abstract:

The Jiujialu Formation of the Lower Carboniferous in central Guizhou Province represents a significant bauxite-bearing stratigraphic unit in the region. This study aims to clarify the metallogenic geological setting and the dominant ore-forming processes of the bauxite deposits within the Jiujialu Formation in central Guizhou Province. Based on the theoretical framework of metallogenic sedimentology and supported by quantitative palaeogeographic reconstruction,the study employs an integrated approach combining petrology,sedimentology,and sedimentary geochemistry of the ore-bearing deposit to reconstruct the palaeoenvironment and explore the mechanisms of bauxite formation. The findings indicate that during the Early Carboniferous,central Guizhou Province was characterized by a nearshore karst peneplain depositional setting. The aluminous strata developed within a closed,karst-depression-controlled lacustrine-marsh wetland environment. The basal iron-rich section of the Jiujialu Formation represents Fe-enriched interval formed from relict slope deposits of ancient weathering crusts. The overlying clay-rich interval comprises dark clay rocks formed in transitional facies influenced by marine transgression or inundation. The middle aluminous section shows a regular vertical succession of lithofacies,including layered claystone,massive bauxite or bauxitic rock,pisolitic bauxite,clastic bauxite,and porous bauxite. This lithofacies assemblage reflects a metallogenic process combining both wetland sedimentation and subaerial leaching under subaerial exposure conditions. The deposition of Al-rich source rocks was followed by desiccation of the lacustrine-wetland system and the formation of a vadose leaching sequence under the influence of fluctuating groundwater levels. Based on these results,a metallogenic model for the bauxite deposits of the Jiujialu Formation in the Lower Carboniferous of central Guizhou Province is proposed.

Key words: bauxite, subaerial leaching metallogenesis, Jiujialu Formation, Lower Carboniferous, Guizhou Province

摘要：

黔中地区下石炭统九架炉组是贵州省铝土矿的重要赋矿层。为了揭示黔中地区下石炭统九架炉组铝土矿的成矿地质环境和主导成矿作用,论文以矿产沉积学的思想为主导,以定量古地理重建为基础,对含矿岩系进行了岩石学、沉积学、沉积地球化学等综合研究,恢复了含矿岩系形成的古环境,探讨了铝土矿的形成机理。研究表明,黔中地区早石炭世处于近海喀斯特准平原的沉积背景; 含铝岩系形成于准平原喀斯特洼地非贯通型的湖泊湿地环境; 九架炉组含矿岩系底部铁质岩段为古风化壳残坡积成因的富铁层,顶部黏土岩段为受海泛或海侵影响的过渡相暗色黏土岩。中部铝质岩段自下而上为层状黏土岩、致密状铝土矿或铝土岩、包粒状铝土矿、碎屑铝土矿、多孔状铝土矿,组成规律的岩相组合。这种岩相组合反映了铝土矿的湿地沉积—旱地陆表淋滤成矿过程: 沉积成因的富铝质母岩,随着水位下降湖泊湿地旱地化,形成受地下水波动控制的陆表淋滤作用序列。在此基础上,建立了黔中地区下石炭统九架炉组铝土矿的成矿模式。

关键词: 铝土矿, 陆表淋滤成矿作用, 九架炉组, 下石炭统, 贵州省

CLC Number:

P588.244

DU Yuansheng, PANG Dawei, YU Wenchao, CHEN Qun, DENG Xusheng, LEI Zhiyuan, WU Bo, DAI Xiaoyan, DENG Keyong, ZHOU Jintao, MO Hongcheng, CHENG Long. Quantitative palaeogeographic reconstruction of the Early Carboniferous Jiujialu Formation bauxite in central Guizhou Province: a sedimentary metallogenic perspective[J]. Journal of Palaeogeography（Chinese Edition）, 2026, 28(1): 1-24.

杜远生, 庞大卫, 余文超, 陈群, 邓旭升, 雷志远, 吴波, 戴晓燕, 邓克勇, 周锦涛, 莫洪成, 成龙. 基于定量古地理重建的黔中下石炭统九架炉组铝土矿矿产沉积学研究^*[J]. 古地理学报, 2026, 28(1): 1-24.

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Figures/Tables 17

Fig.1 Distribution map of bauxite deposits in Guizhou Province

Fig.2 Simplified geological map of central Guizhou Province(modified from Guizhou Geological Bureau,1987)

Fig.3 Stratigraphic column of ore-bearing system of the Jiujialu Formation(drillcore ZK47-12)in central Guizhou Province

Fig.4 Ore type classification photographs from the Jiujialu Formation in central Guizhou Province

Fig.5 Field photos of bauxite deposits in central Guizhou Province

Fig.6 Comparison of bauxite ore bodies from drillcore in Maochang area,Qingzhen,central Guizhou Province (based on data from Geological Team 115 of Guizhou Province)

Fig.7 Palaeogeography of Guizhou Province during the Visean Stage of Early Carboniferous(after Deng et al., 2020)

Fig.8 Isopach map of single-factor thickness of bauxite types in central Guizhou Province

Fig.9 Isopach map of bauxite thickness,palaeogeography and palaeogeomorphic maps of central Guizhou Province

Fig.10 Single-factor isopach map of Maochang area,Qingzhen,central Guizhou Province

Table 1 Paleosalinity data from samples of drillcore ZK47-12

样品号	3	4	5	6	7	8	9	10	11	12
B/10^-6	38	26	82	26	74	93	22	85	73	47
Ga/10^-6	16.1	11.8	13.7	14.5	22.6	19.9	16.9	20	20	18.9
B/Ga值	2.36	2.2	5.99	1.79	3.27	4.67	1.3	4.25	3.65	2.49
样品号	13	14	15	16	17	18	19	20	21	22
B/10^-6	203	184	285	291	165	167	177	252	412	338
Ga/10^-6	28	17.1	40.7	48.5	47.7	49.1	50.3	42.9	40.6	46.8
B/Ga值	7.25	10.76	7	6	3.46	3.4	3.52	5.87	10.1	7.22
样品号	23	24	25	26	27	28	29	30	31	32
B/10^-6	292	230	278	369	255	123	261	338	248	235
Ga/10^-6	44.1	48.7	43.8	44.8	47.3	34	38.8	73	24.8	66.5
B/Ga值	6.62	4.72	6.35	8.24	5.39	3.62	6.73	4.63	10	3.53
样品号	33	34	35	36	37	38	39	40	41	42
B/10^-6	255	304	373	320	297	311	305	295	317	166
Ga/10^-6	62.6	63.4	85.3	47.4	78.2	84.5	103.5	43.7	58.5	14.2
B/Ga值	4.07	4.79	4.37	6.75	3.8	3.68	2.95	6.75	5.42	11.69

Fig.11 Major element and palaeosalinity of samples from drillcore ZK47-12 from Xiuwen area,central Guizhou Province

Fig.12 Palaeogeographic model of the Lower Carboniferous Jiujialu Formation in central Guizhou Province

Fig.13 Mass balance calculation results of major elements from drillcore ZK47-12

Fig.14 Major element contents from drillcore ZK6892 at Maochang,Qingzhen

Fig.15 Mass balance calculation results of major elements from drillcore ZK6892

Fig.16 Sedimentary model of bauxite deposits in central Guizhou Province

References 40

[1]	成龙, 余文超, 杜远生, 周锦涛, 熊国林, 翁申富, 郭尚宇. 2024. 黔北旦坪铝土矿床胶体包粒成因及其形成时间估算. 古地理学报, 26(5): 1167-1184. doi: 10.7605/gdlxb.2024.00.056
	[Cheng L, Yu W C, Du Y S, Zhou J T, Xiong G L, Weng S F, Guo S Y. 2024. The genesis of colloidal pellets in the Danping Bauxite Deposit in northern Guizhou Province and estimation of their mineralization duration. Journal of Palaeogeography(Chinese Edition), 26(5): 1167-1184]
[2]	邓旭升, 杜远生, 余文超, 吴开彬, 卢树藩, 张晗彬. 2020. “黔中隆起”和贵州晚古生代古地理演化及其对铝土矿的控矿作用. 古地理学报, 22(5): 872-892. doi: 10.7605/gdlxb.2020.05.060
	[Deng X S, Du Y S, Yu W C, Wu K B, Lu S F, Zhang H B. 2020. “Qianzhong uplift”and evolution of the Late Paleozoic palaeogeography and its contro on formation of bauxite in Guizhou Province. Journal of Palaeogeography(Chinese Edition), 22(5): 872-892]
[3]	杜远生, 余文超. 2020. 沉积型铝土矿的陆表淋滤成矿作用: 兼论铝土矿床的成因分类. 古地理学报, 22(5): 812-826. doi: 10.7605/gdlxb.2020.05.056
	[Du Y S, Yu W C. 2020. Subaerial leaching process of sedimentary bauxite and the discussion on classifications of bauxite deposits. Journal of Palaeogeography(Chinese Edition), 22(5): 812-826]
[4]	杜远生, 周琦, 金中国, 焦养泉. 2015. 贵州务正道地区二叠系铝土矿沉积地质学. 湖北武汉: 中国地质大学出版社,27-85.
	[Du Y S, Zhou Q, Jin Z G, Jiao Y Q. 2015. Sedimentary Geology of the Premian Bauxite Deposit in Wuchuan-Zhengan-Daozhen Area,Northern Guizhou Province. Hubei Wuhan: China University of Geoscience Press,27-85]
[5]	杜远生, 余文超, 张亚冠. 2020. 矿产沉积学: 一个新的交叉学科方向. 古地理学报, 22(4): 601-619. doi: 10.7605/gdlxb.2020.04.041
	[Du Y S, Yu W C, Zhang Y G. 2020. Ore sedimentology: a developing interdisciplinary research direction of sedimentology. Journal of Palaeogeography(Chinese Edition), 22(4): 601-619]
[6]	杜远生, 余文超, 翁申富, 雷志远, 李沛刚, 覃英, 邓克勇, 卢树藩, 罗香建, 符宏斌, 张嘉玮, 吴波, 邓旭升, 陈群, 郭尚宇, 张启莲, 覃丰, 邹应中, 庞大卫, 周锦涛, 成龙. 2024. 铝土矿及伴生的关键金属矿床的岩石(矿石)组成、成矿序列及成矿机理. 古地理学报, 26(5): 1152-1166. doi: 10.7605/gdlxb.2024.05.087
	[Du Y S, Yu W C, Weng S F, Lei Z Y, Li P G, Qin Y, Deng K Y, Lu S F, Luo X J, Fu H B, Zhang J W, Wu B, Deng X S, Chen Q, Guo S Y, Zhang Q L, Qin F, Zou Y Z, Pang D W, Zhou J T, Cheng L. 2024. Lithologic(Ore)types and formation sequence and metallogenic mechanism of bauxite and associated key metal ore deposits. Journal of Palaeogeography(Chinese Edition), 26(5): 1152-1166]
[7]	冯增昭. 1992. 单因素分析综合作图法: 岩相古地理学方法论. 沉积学报, 10(3): 70-76.
	[Feng Z. 1992. Single factor analysis and comprehensive mapping: methodology of lithofacies palaeogeography. Acta Sedimentlogica Sinica, 10(3): 70-76]
[8]	冯增昭. 2004. 单因素分析多因素综合作图法: 定量岩相古地理重建. 古地理学报, 6(1): 3-19.
	[Feng Z Z. 2004. Single factor analysis and multifactor comprehensive mapping method: quantitative lithofacies palaeogeography. Journal of Palaeogeography(Chinese Edition), 6(1): 3-19]
[9]	贵州省地质局. 1987. 贵州省区域地质. 北京: 地质出版社.
	[Guizhou Geological Bureau. 1987. Regional Geology of Guizhou Province. Beijing: Geological Publishing House]
[10]	贵州省地质调查院. 2014. 贵州省区域地质志. 北京: 地质出版社.
	[Guizhou Geological Survey. 2014. Regional Geology of Guizhou Province. Beijing: Geological Publishing House]
[11]	廖士范, 梁同荣. 1991. 中国铝土矿地质学. 贵州贵阳: 贵州科技出版社.
	[Liao S F, Liang T R. 1991. Bauxite Geology of China. Guizhou Guiyang: Guizhou Science and Technology Press]
[12]	刘宝珺, 许效松, 潘杏南. 1994. 中国南方岩相古地理图集. 北京: 科学出版社.
	[Liu B J, Xu X S, Pan X N. 1994. Lithofacies and Palaeogeographic Map of South China. Beijing: Science Press]
[13]	庞大卫. 2023. 华南黔中地区下石炭统九架炉组铝土矿含矿岩系古地貌与淋滤成矿作用研究. 中国地质大学(武汉)博士学位论文.
	[Pang D W. 2023. Geomorphology and the formation of bauxite deposits during subaerial leaching process within the Lower Carboniferous Jiujialu Formation in central Guizhou,South China. Doctoral dissertation of China University of Geoscience(Wuhan) ]
[14]	王俊达, 李华梅. 1998. 贵州石炭纪古纬度与铝土矿. 地球化学, 27(6): 575-578.
	[Wang J D, Li H M. 1998. Carboniferous paleo-latitude and bauxite deposit of central Guizhou Province. Geochimica, 27(6): 575-578]
[15]	吴波, 邓克勇, 刘应忠, 徐安全. 2020. 贵州龙里地区早石炭世杜内期铝土矿微地貌及其对铝土矿的控制作用. 古地理学报, 22(5): 977-988. doi: 10.7605/gdlxb.2020.05.066
	[Wu B, Deng K Y, Liu Y Z, Xu A Q. 2020. Micro geomorphy and its control on the Early Carboniferous Tournaisian bauxite deposits in Longli area of Guizhou Province. Journal of Palaeogeography(Chinese Edition), 22(5): 977-988]
[16]	魏巍, Thomas J. Algeo, 陆永潮, 刘惠民, 张守鹏, 张靖宇, 杜远生. 2021. 古盐度指标与渤海湾盆地古近系海侵事件初探. 沉积学报, 39(3): 571-592.
	[Wei W, Algeo T J, Lu Y C, Liu H M, Zhang S P, Zhang J Y, Du Y S. 2021. Paleosalinity proxies and marine incursions into the Paleogene Bohai Bay Basin lake system,northeastern China. Acta Sedimentlogica Sinica, 39(3): 571-592]
[17]	余文超, 杜远生, 熊国林, 周锦涛, 庞大卫, 邓旭升, 翁申富, 李沛刚. 2020. 中国铝土矿沉积中的碎屑锆石记录: 对铝土矿物源模式与矿床分类的启示. 古地理学报, 22(5): 947-964. doi: 10.7605/gdlxb.2020.05.064
	[Yu W C, Du Y S, Xiong G L, Zhou J T, Pang D W, Deng X S, Weng S F, Li P G. 2020. Detrital zircon records in bauxite deposits of China: implication for the provenance model and ore deposit classification of bauxite. Journal of Palaeogeography(Chinese Edition), 22(5): 947-964]
[18]	余文超, 杜远生, 周锦涛, 成龙, 邓旭升, 戴贤铎, 庞大卫, 翁申富, 雷志远, 李沛刚, 陈群. 2023. 中国铝土矿成矿作用的物质来源与深时环境因素: 进展与讨论. 地质学报, 97(9): 3056-3074.
	[Yu W C, Du Y S, Zhou J T, Cheng L, Deng X S, Dai X D, Pang D W, Weng S F, Lei Z Y, Li P G, Chen Q. 2023. Provence and deep-time environmental factors for bauxitization in China: progress and discussion. Acta Geologica Sinica(Chinese Edition), 97(9): 3056-3074]
[19]	Bárdossy G. 1982. Karst Bauxites:Bauxite Deposits on Carbonate Rocks. Elsevier: Amsterdam.
[20]	Bárdossy G, Aleva G J J. 1990. Lateritic Bauxites. Elsevier: Amsterdam.
[21]	Bogatyrev B A, Zhukov V V, Tsekhovsky Y G. 2009. Formation conditions and regularities of the distribution of large and superlarge bauxite deposits. Lithology and Mineral Resources, 44: 135-151. doi: 10.1134/S0024490209020035 URL
[22]	Chen Z Y, Song B P, Wang Z H, Cai Y L. 2000. Late Quaternary evolution of the sub-aqueous Yangtze Delta,China: sedimentation,stratigraphy,palynology,and deformation. Marine Geology, 162(2): 423-441. doi: 10.1016/S0025-3227(99)00064-X URL
[23]	Couch E L. 1971. Calculation of paleosalinities from boron and clay mineral data. AAPG Bulletin, 55(10): 1829-1837.
[24]	D'Argenio B, Mindszenty A. 1995. Bauxites and related paleo-karst: tectonic and climatic event markers at regional unconformities. Eclogae Geologicae Helvetiae, 88(3): 453-499.
[25]	Degens E T, Williams E G, Keith M L. 1957. Environmental studies of Carboniferous sediments part I: geochemical criteria for differentiating marine from fresh-water shales. AAPG Bulletin, 41(11): 2427-2455.
[26]	Frederickson A F, Reynolds J R R C. 1960. Geochemical method for determining paleosalinity. Clays and Clay Minerals, 8(1): 203-213.
[27]	Holmden C, Creaser R A, Muehlenbachs K. 1997. Paleosalinities in ancient brackish water systems determined by ⁸⁷Sr/⁸⁶Sr ratios in carbonate fossils: a case study from the western Canada Sedimentary Basin. Geochimica et Cosmochimica Acta, 61(10): 2105-2118. doi: 10.1016/S0016-7037(97)00073-2 URL
[28]	Ling K Y, Zhu X Q, Tang H S, Li S X. 2017. Importance of hydrogeological conditions during formation of the karstic bauxite deposits,central Guizhou Province,Southwest China: a case study at Lindai deposit. Ore Geology Reviews, 82: 198-216. doi: 10.1016/j.oregeorev.2016.11.033 URL
[29]	Li P G, Yu W C, Du Y S, Lai X L, Weng S F, Pang D W, Xiong G L, Lei Z Y, Zhao S, Yang S Q. 2020. Influence of geomorphology and leaching on the formation of Permian bauxite in northern Guizhou Province,South China. Journal of Geochemical Exploration, 210: 106446. doi: 10.1016/j.gexplo.2019.106446 URL
[30]	Liu X F, Wang Q F, Zhao L H, Peng Y B, Ma Y, Zhou Z H. 2020. Metallogeny of the large-scale Carboniferous karstic bauxite in the Sanmenxia area,southern part of the North China Craton,China. Chemical Geology, 556: 119851. doi: 10.1016/j.chemgeo.2020.119851 URL
[31]	Ma Y Q, Fan M J, Lu Y C, Liu H M, Hao Y Q, Xie Z H, Liu Z H, Peng L, Du X B, Hu H Y. 2016. Climate-driven paleolimnological change controls lacustrine mudstone depositional process and organic matter accumulation: constraints from lithofacies and geochemical studies in the Zhanhua Depression,eastern China. International Journal of Coal Geology, 167: 103-118. doi: 10.1016/j.coal.2016.09.014 URL
[32]	Pang D W, Yu W C, Chen Q, Du Y S, Dai X Y, Xiong G L, Deng K Y, Wu B, Deng X S, Zhou J T. 2023. Continental weathering led to the accumulation of Early Carboniferous bauxite deposits in the SW South China Craton. Journal of Asian Earth Science, 256(15): 105801.
[33]	Price G D, Valdes P J, Sellwood B W. 1997. Prediction of modern bauxite occurrence: implications for climate reconstruction. Palaeogeography,Palaeoclimatology,Palaeoecology, 131: 1-13. doi: 10.1016/S0031-0182(96)00145-9 URL
[34]	Tardy Y, Nahon D. 1985. Geochemistry of laterites,stability of Al-goethite,Al-hematite,and Fe(super 3+)-kaolinite in bauxites and ferricretes;an approach to the mechanism of concretion formation. American Journal of Science, 285(10): 865-903. doi: 10.2475/ajs.285.10.865 URL
[35]	USGS. 2023. Mineral Commodity Summaries. Virginia: USGS.
[36]	Wang R X, Wang Q F, Huang Y X, Yang S J, Liu X F, Zhou Q. 2018. Combined tectonic and paleogeographic controls on the genesis of bauxite in the Early Carboniferous to Permian Central Yangtze Island. Ore Geology Reviews, 101: 468-480. doi: 10.1016/j.oregeorev.2018.07.013 URL
[37]	Weng S F, Yu W C, Thomas T J, Du Y S, Li P G, Lei Z Y, Zhao S. 2019. Giant bauxite deposits of South China: multistage formation linked to Late Paleozoic Ice Age(LPIA)eustatic fluctuations. Ore Geology Reviews, 104: 1-13. doi: 10.1016/j.oregeorev.2018.10.014 URL
[38]	Xiong G L, Yu W C, Du Y S, Weng S F, Pang D W, Deng X S, Zhou J T. 2021. Provenance of Lower Carboniferous bauxite deposits in Northern Guizhou,China: constraints from geochemistry and detrital zircon U-Pb ages. Journal of Earth Science, 32(1): 235-252. doi: 10.1007/s12583-020-1081-8
[39]	Ye C C, Yang Y B, Fang X M, Zhang W L. 2016. Late Eocene clay boron-derived paleosalinity in the Qaidam Basin and its implications for regional tectonics and climate. Sedimentary Geology, 346: 49-59. doi: 10.1016/j.sedgeo.2016.10.006 URL
[40]	Yu W C, Algeo T J, Yan J X, Yang J H, Du Y S, Huang X, Weng S F. 2019. Climatic and hydrologic controls on upper Paleozoic bauxite deposits in South China. Earth-Science Reviews, 189: 159-176. doi: 10.1016/j.earscirev.2018.06.014 URL

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