丘砂

Hybrids of carbonate and terrigenous sediments Carbonate with terrigenous sediments are of characteristic from Emsian to Eifelian in stable shallow-sea faciesregion in Longmenshan area, and they can be classified evidently into hybrid Ⅰ and hybrid Ⅱ(Jingbaoshi-type). Type Ⅰ produced in mud shelf setting occupied hundreds of tempestite beds in which bottom cast、 hummocky cross bedding sandstones、 coquina were inter-beddded with shales that beared a great deal of verm traces、 bioturbations、 benthic communities dominative of brachiopods. Type Ⅱ in sand-mud-marl shelf was characterized by high-energy foreshore sandbeach facies and shelly bank facies.

碳酸盐与陆源碎屑混合沉积方面对微相、相特征、旋回样式、沉积机理研究表明，龙门山地区泥盆纪稳定浅海相区Emsian期和Eifelian期混合沉积十分发育，颇具特色，明显可以划分为两种类型：混积Ⅰ型，泥质陆棚背景下发育风暴沉积组构，幕式风暴期产生具丘状层理、底流冲刷构造的钙质砂岩、介壳岩，平息期则形成具大量虫管和生物扰动的深灰色、黄绿色页岩及海百合茎灰岩，腕足动物等大量繁盛；混积Ⅱ型，砂泥灰质陆棚背景下以发育高能前滨沙滩及生物介屑滩为特色，近滨至陆棚的砂泥灰互为混合，三者比例接近，肉眼难以区别确切岩石类型。

Whereas, reletively deep at the northern slope, and fine in sediments, developed delta deposits and hummocky cross-bedding sandstones of temposite origination in Sangonghe section.

但是在博格达山北坡水体较深，沉积较细，三工河等剖面发育了三角洲沉积和风暴成因的丘状砂岩层。

Yesterday while wandering around alone in the pinewood, I piled up a sand hill for fun.

昨朝我一人在松林里徘徊，在一株老松树下戏筑了一座砂丘。

Yesterday morning, while wandering about alone in a pine forest, I amused myself by piling up a small sand hill under an old pine tree.

昨朝我一人在松林里徘徊，在一株老松树下戏筑了一座砂丘。

The last interglacial strata sequence of Milanggouwan stratigraphic section in the Salawusu River valley has recorded 8^5 sedimentary cycles of aeolian sand alternatively interlaid with fluvio-lacustrine facies or paleosols.

萨拉乌苏河流域米浪沟湾剖面末次间冰期层系记录了8 5个风成的古砂丘砂与河湖相或／和古土壤构成的沉积旋回。

It's famous for lots of dune lakes, clean water and creek, rainforest track, historic Central station and a few of pure dingoes.

较著名的景观有大量的砂丘湖、清彻的伊莱溪、雨林步道、历史悠久的中央火车站以及为数不多的纯种丁狗。

TheMartian North Poleis ringed by many similar fields ofbarchan sand dunes, whose strange, smooth arcs are shaped by persistentMartian winds.

火星的北极周围围绕着许多类似的新月砂丘，这些弧型结构是由火星上的风所造成的。

Relatively flat or undulating sandy turf-covered ground usually along a seashore.

砂丘相对平坦或有波状起伏的覆草沙地，通常在海岸边

Sandy turf-covered ''.

砂丘相对平坦或有波状起伏的覆草沙地，通常在海岸边

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。