冲积砂

月亮坝砂金矿属小型冲积砂金矿床。

Yueliangba gold deposit is a small scale alluvial gold deposit .

唐山地震区的喷水冒砂及其与冲积砂体的分布关系

Relationship of water and sand eruption to allu-vial sand body in Tangshan earthquake area

巨砾是砂金矿开采时遇到的特殊问题，本文阐述了巨砾在河流冲积砂金矿床不同地段的分布规律，指出巨砾对矿床开采的影响，及在开采、设计中应注意的问题。

Boulder is a special issue for gold placer mining . The article expounds the distribution regularity of boulder in different sections of the alluvial gold placer and points out the impacts of boulder in mining and the issues that shall be concerned for mining and design .

储集层主要是石炭系的滨岸砂体、二叠系的河道砂体以及冲积扇砂体。

The offshore sandstone of Carboniferous and channel sandstone and alluvial fan of Permian are mainly reservoir rocks .

受断裂与古地貌的联合控制，冲积扇河道砂体与泛滥平原河道砂体主要沿低洼的沟谷和断槽一带呈条带状展布。

Largely governed by the fault trough and paleo-geomorphic low area , the channel sand bodies were belt-like distributed .

进入第四纪以来，形成了各种类型的冲积、洪积砂矿床，构成了第13成矿系列。

Kinds of alluvial and pluvial placers were formed in Quaternary as No. 13 series .

花东纵谷北中段冲积扇与土砂灾害

Alluvial fans and debris hazards in the Northern and Middle Part of the Longitudinal Valley of Eastern Taiwan