首页|贵州省天柱县大河边地区寒武系乌训组滑塌建造的物源及其意义

贵州省天柱县大河边地区寒武系乌训组滑塌建造的物源及其意义

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沉积岩中普遍发育滑塌滑移建造.贵州天柱大河边地区寒武系第二统乌训组即普遍发育滑塌滑移建造,通过地质调查分析,可见滑塌滑移角砾岩建造、瘤状灰岩建造、散布于炭质粘土岩中的"钙质结核"和灰岩中的泥岩脉,以及一系列滑移褶皱褶曲等软沉积物变形构造等类型.根据滑塌滑移角砾岩建造中的鲕粒灰岩角砾和乌训组沉积建造处于大陆斜坡环境的古地理背景分析,滑塌滑移角砾岩建造中的鲕粒灰岩角砾应来源于乌训组北西侧处于台地边缘相的清虚洞组,结合灰岩中的泥岩脉即典型震积泥岩脉现象,综合认为,乌训组普遍发育的各种类型滑塌滑移角砾岩建造和其它变形建造,系地震营力及其导致的滑塌滑移事件作用的结果.
Material Source and Its Significance of Slump Association of Wuxun formation,Cambrian in Dahebian area,Tianzhu County,Guizhou Province
Collapse slip formation is widely developed in Sedimentary rock.The second series of Cambrian in Dahebian area,Tianzhu,Guizhou Province,is generally characterized by collapse slip formation.Through Ge-ological survey,it can be seen collapse slip Breccia formation,nodular limestone formation,"calcareous nodules"scattered in carbonaceous clay rocks,mudstone veins in limestone,and a series of slip fold folds and other soft sediment deformation structures.According to the analysis of the paleogeographic background of the Oolite breccia in the collapse slip Breccia formation and the sedimentary formation of the Wuxun Formation in the continental slope environment,the Oolite breccia in the collapse slip Breccia formation should be derived from the Qingxudong Formation in the northwest side of the Wuxun Formation in the platform margin facies.The mudstone veins in the combined limestone are typical seismic mudstone veins,The various types of sliding and sliding breccia formations and other deformation formations commonly developed in the Wuxun Formation are the result of seismic forces and the sliding and sliding events caused by them.

Collapse slip breccia associationOolitic LimestoneCalcareous tuberculosisSeismic mudstone veinNodular limestoneTianzhu Guizhou

王文杰、杨光忠、刘灵、林泽渊、李永刚、杨贵龙、罗邦良

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贵州省地矿局101地质大队,贵州 凯里 556000

滑塌滑移角砾岩建造 鲕粒灰岩 "钙质结核" 震积泥岩脉 瘤状灰岩 贵州天柱

贵州天柱坪地向斜重晶石矿床找矿模式与深部三维预测研究贵州重晶石成矿规律与找矿预测研究

黔地矿科合[2021]24号黔科合战略找矿[2022]ZD004

2024

贵州地质
贵州省地质调查院,贵州省地质学会

贵州地质

影响因子：0.504
ISSN：1000-5943
年,卷(期)：2024.41(1)
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