Formation mechanism and occurrence of lacustrine microbialites:a case study of the Paleogene outcrops in Xichagou area of Q aidam Basin

夏志远; 龙国徽; 刘占国; 张长好; 朱超; 唐鹏程; 田明智

doi:10.7623/syxb202512007

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Formation mechanism and occurrence of lacustrine microbialites:a case study of the Paleogene outcrops in Xichagou area of Q aidam Basin

更新时间：2026-02-02

- Formation mechanism and occurrence of lacustrine microbialites:a case study of the Paleogene outcrops in Xichagou area of Q aidam Basin
- ACTA PETROLEI SINICA Vol. 46, Issue 12, Pages: 2301-2317(2025)
- 作者机构：
  
  1. 中国石油杭州地质研究院,浙江,杭州,310023
  2. 中国石油青海油田公司勘探事业部甘肃敦煌,736200
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202512007
  CLC： TE122.3
- Published Online：09 January 2026，
  
  Published：2025
- 稿件说明：
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夏志远, 龙国徽, 刘占国, 张长好, 朱超, 唐鹏程, 田明智. 湖相微生物岩形成机制与产状分布——以柴达木盆地西岔沟地区古近系露头为例[J]. 石油学报, 2025, 46(12): 2301-2317.

夏志远, 龙国徽, 刘占国, et al. Formation mechanism and occurrence of lacustrine microbialites:a case study of the Paleogene outcrops in Xichagou area of Q aidam Basin[J]. ACTA PETROLEI SINICA, 2025, 46(12): 2301-2317.
夏志远, 龙国徽, 刘占国, 张长好, 朱超, 唐鹏程, 田明智. 湖相微生物岩形成机制与产状分布——以柴达木盆地西岔沟地区古近系露头为例[J]. 石油学报, 2025, 46(12): 2301-2317. DOI： 10.7623/syxb202512007.

夏志远, 龙国徽, 刘占国, et al. Formation mechanism and occurrence of lacustrine microbialites:a case study of the Paleogene outcrops in Xichagou area of Q aidam Basin[J]. ACTA PETROLEI SINICA, 2025, 46(12): 2301-2317. DOI： 10.7623/syxb202512007.

摘要

湖相微生物岩在柴达木盆地古近系—新近系广泛分布

是良好的油气储层类型

但其单层厚度小、层间非均质性强、沉积环境复杂、分布规律难以预测

制约了该类油气储层的识别和内部油气的勘探与开发。基于柴达木盆地阿尔金山前西段西岔沟地区古近系典型微生物席和微生物丘剖面的观察描述、铸体薄片鉴定和X射线衍射全岩矿物分析以及微量元素、稀土元素和碳、氧同位素综合分析

系统探讨了湖相微生物岩的沉积序列、结构特征、沉积环境、成因机制和产状分布。研究结果表明

柴达木盆地古近系湖相微生物岩主要呈席状(微生物席)和丘状(微生物丘)2种形态

其中

微生物席主要发育球粒结构和叠层结构

其沉积序列和发育规模在横向上较为稳定

沉积于气候干旱、水温偏低、盐度较高、还原性较弱的水体环境。微生物丘主要发育圈层结构以及少量球粒结构

其沉积序列和发育规模在横向上变化大

沉积于气候湿润、水温偏高、盐度较低、还原性较强的水体环境。受沉积古地貌和水深变化影响

微生物席和微生物丘的产状及分布规律差异明显。微生物席平行湖岸线方向主要呈片状断续分布

而在垂直湖岸线方向上则呈连续分布;微生物丘在平行湖岸线方向呈低密度断续分布

而在垂直湖岸线方向上则呈高密度串珠状分布。研究认识对柴达木盆地湖相微生物岩优质储层的分布预测具有重要指导与借鉴意义。

Abstract

Lacustrine microbialites are widely distributed in the Paleogene-Neogene formations in Qaidam Basin

and constitute favorable oil and gas reservoir types. However

the small single-layer thickness

pronounced interlayer heterogeneity

complex sedimentary environment

and difficult-to-predict distribution patterns have constrained the identification of these reservoirs and the exploration and development of hydrocarbons in the reservoirs. Based on detailed observations of typical microbial mat and microbial mound profiles in the Paleogene outcrops of Xichagou area in the western front of Altun Mountain in Qaidam Basin

combined with cast thin-section petrography

whole-rock X-ray diffraction (XRD) mineral analysis

and integrated analyses of trace elements

rare earth elements (REEs)

carbon and oxygen isotopes

this study systematically investigates the sedimentary sequences

structural characteristics

sedimentary environments

genetic mechanisms

and occurrence patterns of lacustrine microbialites. The results indicate that Paleogene lacustrine microbialites in Qaidam Basin predominantly occur in two morphologies: mat-like pattern (microbial mats) and mound-like pattern (microbial mounds). Microbial mats mainly develop peloidal textures and stromatolitic structures

exhibiting laterally persistent sedimentary sequences and development scales. They were deposited in aquatic environments marked by an arid climate

low water temperature

elevated salinity

and weak reducibility. In contrast

microbial mounds are characterized by the predominant development of concentric laminated structures along with a small proportion of peloidal textures. their sedimentary sequences and development scales exhibit pronounced lateral variations

and they formed in aquatic environments with a humid climate

higher water temperature

lower salinity

and stronger reducibility. Influenced by sedimentary paleogeomorphology and variations in water depth

the occurrence and distribution patterns of microbial mats and microbial mounds differ markedly. Microbial mats are mainly distributed as discontinuous sheet-like bodies parallel to the lakeshore

while exhibiting continuous distribution perpendicular to the shoreline. In contrast

microbial mounds show low-density

discontinuous distribution parallel to the lakeshore

and high-density

beaded distribution perpendicular to it. These findings provide important guidance and reference for predicting the distribution of high-quality lacustrine microbialite reservoirs in Qaidam Basin.

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references

罗平,王石,李朋威,等.微生物碳酸盐岩油气储层研究现状与展望[J].沉积学报,2013,31(5):807-823.

BOSENCE D W J,GIBBONS K A,LE HERON D P,等.微生物碳酸盐岩:对全球油气勘探与开发的意义[M].王小芳,杜东,李文正,等译.北京:石油工业出版社,2019:3-6.

MUNIZ M C,BOSENCE D W J.Lacustrine carbonate platforms:facies,cycles,and tectonosedimentary models for the presalt Lagoa Feia Group (Lower Cretaceous),Campos Basin,Brazil[J].AAPG Bulletin,2018,102(12):2569-2597.

MIZUNO T A,MIZUSAKI A M P,LYKAWKA R.Facies and paleoenvironments of the Coqueiros Formation (Lower Cretaceous,Campos Basin):a high frequency stratigraphic model to support pre-salt "coquinas" reservoir development in the Brazilian continental margin[J].Journal of South American Earth Sciences,2018,88:107-117.

郭泽清,郑得文,刘卫红,等.柴达木盆地西部古近纪—新近纪湖相生物礁的发现及意义[J].地层学杂志,2008,32(1):60-68.

雷川,李红,杨锐,等.新疆乌鲁木齐地区中二叠统芦草沟组湖相微生物成因白云石特征[J].古地理学报,2012,14(6):767-775.

唐鑫萍,黄文辉,邓宏文,等.山东平邑盆地古近系湖相微生物碳酸盐岩形成机理[J].古地理学报,2012,14(3):355-364.

SEARD C,CAMOIN G,ROUCHY J M,et al.Composition,structure and evolution of a lacustrine carbonate margin dominated by microbialites: case study from the Green River Formation (Eocene; Wyoming,USA)[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2013,381-382:128-144.

FRANTZ C M,PETRYSHYN V A,MARENCO P J,et al.Dramatic local environmental change during the Early Eocene climatic optimum detected using high resolution chemical analyses of Green River Formation stromatolites[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2014,405:1-15.

SARG J F,SURIAMIN,TÄNAVSUU-MILKEVICIENE K,et al.Lithofacies,stable isotopic composition,and stratigraphic evolution of microbial and associated carbonates,Green River Formation (Eocene),Piceance Basin,Colorado[J].AAPG Bulletin,2013,97(11):1937-1966.

CHAGAS A A P,WEBB G E,BURNE R V,et al.Modern lacustrine microbialites:towards a synthesis of aqueous and carbonate geochemistry and mineralogy[J].Earth-Science Reviews,2016,162:338-363.

BISCHOFF K,SIRANTOINE E,WILSON M E J,et al.Spherulitic microbialites from modern hypersaline lakes,Rottnest Island,western Australia[J].Geobiology,2020,18(6):725-741.

宋华颖,伊海生,范爱春,等.柴达木盆地西部西岔沟剖面湖相碳酸盐岩岩石学特征与沉积环境分析[J].中国地质,2010,37(1):117-126.

温志峰,钟建华,郭泽清,等.柴西地区第三纪叠层石岩石学特点与油气储集特征[J].石油勘探与开发,2004,31(3):49-53.

郭泽清,钟建华,刘卫红,等.柴西第三纪湖相生物礁储层特征及意义[J].沉积学报,2004,22(3):425-433.

温志峰,钟建华,王冠民,等.柴达木盆地古近纪—新近纪湖相叠层石与藻礁的沉积组合特征与意义[J].地质学报,2005,79(4):444-452.

温志峰,钟建华,李勇,等.柴达木盆地中新世叠层石成因与古环境研究[J].西北地质,2005,38(2):40-48.

寿建峰,邵文斌,陈子炓,等.柴西地区第三系藻灰(云)岩的岩石类型与分布特征[J].石油勘探与开发,2003,30(4):37-39.

王建功,李江涛,李翔,等.柴西地区新生界湖相微生物碳酸盐岩岩相组合差异性及控制因素[J].岩性油气藏,2023,35(3):1-17.

王建功,杨少勇,李翔,等.柴达木盆地西部地区咸化湖泊微生物岩特征与差异分布[J].中国矿业大学学报,2020,49(6):1111-1127.

温志峰,刘显太,钟建华,等.柴达木盆地新近纪叠层石中微生物化石组合的发现与钙化方式研究[J].地质学报,2010,84(2):263-271.

李国欣,王建功,张永庶,等.柴达木盆地南翼山地区微生物碳酸盐岩结构与矿化作用[J].地质学报,2023,97(1):133-149.

付锁堂,马达德,郭召杰,等.柴达木走滑叠合盆地及其控油气作用[J].石油勘探与开发,2015,42(6):712-722.

肖安成,吴磊,李洪革,等.阿尔金断裂新生代活动方式及其与柴达木盆地的耦合分析[J].岩石学报,2013,29(8):2826-2836.

夏志远,刘占国,李森明,等.岩盐成因与发育模式——以柴达木盆地英西地区古近系下干柴沟组为例[J].石油学报,2017,38(1):55-66.

王艳清,宫清顺,夏志远,等.柴达木盆地西部地区渐新世沉积物源分析[J].中国地质,2012,39(2):426-435.

付锁堂,马达德,陈琰,等.柴达木盆地油气勘探新进展[J].石油学报,2016,37(S1):1-10.

刘占国,朱超,李森明,等.柴达木盆地西部地区致密油地质特征及勘探领域[J].石油勘探与开发,2017,44(2):196-204.

李朋威,金廷福,王果谦,等.微生物碳酸盐岩及其油气勘探意义[J].地质科技情报,2013,32(3):66-74.

邓宏文,钱凯.沉积地球化学与环境分析[M].兰州:甘肃科学技术出版社,1993:22-28.

严德天,陈代钊,王清晨,等.扬子地区奥陶系-志留系界线附近地球化学研究[J].中国科学 D辑:地球科学,2009,39(3):285-299.

王峰,刘玄春,邓秀芹,等.鄂尔多斯盆地纸坊组微量元素地球化学特征及沉积环境指示意义[J].沉积学报,2017,35(6):1265-1273.

朱超,刘占国,王波,等.柴达木盆地腹部中央古隆起的形成演化及油气勘探意义[J].海相油气地质,2023,28(3):269-279.

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