1) detrital deposits
碎屑矿床
2) clastic eluvial ore deposit
碎屑残积矿床
3) mineral detritus
矿物碎屑
1.
The quantitative analysis of mineral detritus in 13 surface sediment samples from the Quanzhou Bay was made, and it is shown from the analysis results that the compositions, contents and characteristics of light and heavy minerals at different stations in the Quanzhou Bay are different from each other.
对泉州湾 1 3个表层沉积物样品进行了矿物碎屑定量分析。
4) detrital mineral
碎屑矿物
1.
Research of detrital minerals in the sediment of sub-aqueous Yangtze Delta;
长江水下三角洲沉积物碎屑矿物研究
2.
The study of the detrital minerals of Changjiang sediments indicates that the light minerals mainly consist of quartz,feldspar and lithic fragment.
长江碎屑矿物组成研究表明,轻矿物以石英、长石和岩屑为主,不同支流轻矿物组成特征不同,成熟度指数平均是2。
3.
The changes of detrital mineral contents with water depth, land-form and physiognomy indicate that the distribution of minerals is mainly affected bylandform and physiognomy, and the affecting factors are complicated.
南沙海槽南部海区73个表层沉积物中的碎屑矿物主要有石英、长石、自然铅、褐铁矿、锐钛矿、金红石等，其分布受地形、地貌的控制，可分为西北大陆坡碎屑矿物组合、槽底碎屑矿物组合、东南大陆架碎屑矿物组合3种类型。
5) clastic mineral
碎屑矿物
1.
Distribution of clastic minerals of surface sediments in the western China Sea and their provenance;
南海西部表层沉积物碎屑矿物分布特征及其物源
6) terrigenous heavy mineral
碎屑重矿物
1.
Fifty and two samples were taken from various positions and strata levels of the Paleogene filling sequences in the Nanpu rifted trough by coring for oil exploration and quantitative analysis of terrigenous heavy minerals.
重矿物组合的垂向变化指示出了3个碎屑重矿物组合段,它充分展现了物源区多阶段隆升-剥蚀的历史:始新世的沙三至沙二组合段为凹陷基底岩石层圈(以花岗片麻岩为主)的隆升—剥蚀过程;始新世沙一至渐新世的东二组合段为更深层变质岩层圈的隆升-剥蚀过程;渐新世末的东一段为稳定和老化的变质层圈的隆升—剥蚀及物源区调整过程。
补充资料：残积层
残积层
eluvium
eon』{Ceng残积层(e luvium)地表岩、矿石风化后残留在原地的堆积物。现代残积物分布于地表，第四纪的残积物常被后期其他成因类型的沉积物所覆盖残积物的堆积状态和厚度变化比较大，不具层理。其结构形态随风化作用方式和固化强度而异，机械风化作用残积物主要由母岩机械破碎后的角砾和碎屑组成，化学风化作用形成的残积物除角砾、碎屑外主要为残积土;角砾、碎屑无分选性，多具棱角状、其块、粒度大小不均，分布杂乱，整体结构松散。在潮湿气候条件下，发育完全并保存完整的残积物剖面，底部为角砾、碎屑，上部为风化土以角砾、碎屑为主的残积层构成透水层，以风化土壤为主的残积层则成隔水层。残积层机械强度低，且在不同部位差异较大。残积层分布于露天采场边坡时，易使边坡滑塌;作为建筑物地基时，如墙体基础未挖穿残积层，则易引起不均匀的沉陷而使建筑物开裂、甚至倒塌。 (李远鄂陈国洗)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条