1) dejection cone

洪积锥
2) pluvial fan deposits

洪积扇(锥)沉积
3) pluvial sediments

洪积
1.
The material sources of the Zhangxia Loess which is exposed on the terraces in Zhangxia of Changqing region of Jinan are complicated,including materials transported by northwestern current and eastern Bohai Bay current and the local pluvial sediments.
其中出露在河岸阶地的济南市长清区张夏镇的黄土物质来源复杂 ,既有西北气流、东部渤海湾气流搬运而来的物质 ,又有当地生成的坡洪积碎屑物质。
4) fluvial and pluvial deposition

冲、洪积沉积
5) alluvial fan

洪积扇
1.
The probability curves of alluvial fan conglomerate reservoir have the characteristics of coarse-grained, wide-range and low-slope.
粒度分析资料是一个传统的划相指标,洪积扇储层的概率粒度曲线以其粗粒度、宽区间、低斜率为特征。
2.
Based on the study of different hierarchical bounding surfaces and the transplantation of the Miall\'s idea in the complex reservoir of alluvial fans,a hierarchy analysis method is established,which is suited for the development precision on the inner structure of the alluvial fans.
在厘定其不同层次界面成因的基础上,把Miall研究思路成功移植到洪积扇相复杂储层中,建立了与开发精度相匹配的洪积扇储层内部结构研究的层次分析法,即复合水道、单期水道和高渗透段3个层次。
6) alluvial and flood fan

冲洪积扇
1.
On Nitrogen transform and hydro-geochemical characteristics of the Hun river alluvial and flood fan;
浑河冲洪积扇中下游地下水中氮转化与水文地球化学特征的研究
补充资料:洪积扇
洪积扇 puluvial fan 干旱、半干旱地区暂时性山地水流出山口堆积形成的扇形地貌。组成洪积扇的泥沙、石块颗粒粗大,磨圆度差,层理不明显,透水性较强,扇面上水系不发育。由于山前构造断裂下降,洪积物厚度可达数百米。从扇顶至扇缘高差也可达数百米。一系列洪积扇互相联结形成洪积平原,又称山麓洪积平原。洪积扇因山地不断抬升,山前平原不断下降,形成上叠式扇体。当山地上升规模、幅度均较大时,老扇随之抬升,在其下方发育新扇体,形成串珠状洪积扇。当山地前缘有不等量的新构造活动时,新扇体向相对下降的一侧移动,使新老扇体并列向一侧偏转,造成不对称形态。 |
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参考词条