沉积碎屑岩是最常见沉积岩之一,特别是在陆相沉积物中,分布极为广泛。一般所指的沉积碎屑岩是由50%以上的碎屑物(包括矿物和岩石的碎屑)组成的岩石;它们的形成主要与外动力地质因素有关,大多为机械破碎的产物经搬运沉积而成。
碎屑沉积岩 clastic sedimentary rock 在机械力(风力、水力)的破坏作用下,原来岩石破坏后的碎屑经过搬运和沉积而成 的岩石。例如砂岩、黄土等。
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陆缘碎屑沉积岩 Epicontinental Clastic Sedimentary Rocks
The clastic sedimentary rocks in this area are classified as graywacke and arkose, and their material source should be a mixture of mafic or its partial melting product, metamorphosed basement and/or its anatexis magma, as well as granites.
该区碎屑沉积岩均属杂砂岩与长石砂岩,其物质来源上主要是镁铁质及其变质深熔产物、古老基底物质及其深熔产物及花岗岩类。
参考来源 - 青海共和—花石峡碎屑沉积岩地球化学与锆石年代学及其地质意义·2,447,543篇论文数据,部分数据来源于NoteExpress
论述下石炭统火山岩及火山碎屑沉积岩、区域性大断裂及次级构造对成矿的控制作用。
The gold mineralization is controlled by lower carboniferous volcanic and pyroclastic sedimentary rocks, regional faults and secondary structure.
安溪铅山铅锌矿区复成分角砾岩为一套火山碎屑岩-沉火山碎屑岩-火山碎屑沉积岩。
The polymictic breccia in the Qianshan lead-zinc ore district of Anxi County is a suit of volcaniclastic rock, sedimentary pyroclastic rock and pyroclastic sedimentary rock.
红太平多金属矿床产于延边古生代地槽区二叠系海相火山岩中及其与碎屑沉积岩的过渡带上。
The hongtaiping polymetallic deposit lies in the permian marine volcanic rocks palaeozoic geosyncline and the transitional belt of the clastic sedimentrary rocks in the yanbian area.
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