查询词典 sedimentary rocks

The results indicate that the tempestite in the area has lots of rock types including clastic rocks, bioclastic limestones and volcaniclastic rocks. The cumulative probability plots have "high slope-multi-bouncing population-1 suspension population" pattern, multi segments pattern and "high slope 1 segment" pattern. The sedimentary structures include gutter cast, surface of scour, cut structure, graded bed, massive bedding, hummocky cross stratification, parallel bedding, ripples, contemporaneous deformation and Fugichnia. The grains distribution and sedimentary structures shier that the transportation medium is characterized by tractive current and gravity flow synchronously.

结果表明，该凹陷风暴沉积岩石类型丰富，包括各类碎屑岩、生物灰岩和火山碎屑岩粒度分布具有"高斜多跳悬式"、多段式和"高斜一段式"等多种样式沉积构造发育渠模、冲刷面、截切等底层面侵蚀构造和递变层理、块状层理、丘状层理、洼状层理、平行层理等构造，还发育有波痕和各种同生变形构造、生物逃逸构造等粒度分布和沉积构造反映出研究区兼有重力流和牵引流的水动力机制。

The control of sedimentary and tectonic environment for hydrocarbon source rocks externalized in that sedimentary distributing, organic abundance, organic type, organic development of this rocks and the oil system of Lower Cambrian samely relate to the breakup background.

沉积构造环境对烃源岩的控制表现在，无论其沉积分布、有机质丰度、有机质类型、有机质演化程度，还是下寒武统含油气系统都与该时期裂离背景下的沉积构造环境有关。

The main lithologic characteristic is that the rock types are dominated by light-colored clastic rocks reflecting the oxidation environment with a low maturity. The grain size distribution and sedimentary structure show that the rocks have the sedimentary characters of both gravity currents and tractional currents. Plant fragments are lacking and bioturbation structures are abundant and cyclic. Sandbodies are distributed in a ring shape.

其主要岩性特征为：岩石类型以反映氧化环境的浅色碎屑岩类为主，成熟度较低，粒度分布和沉积构造反映其兼有重力流和牵引流的沉积特点，植物碎屑贫乏而生物扰动构造丰富且具周期性，砂体呈环带状分布。

But the quartz crust of the sedimentary rocks in this experiment fused into a creamy white colour.

但在此次实验中，沉积岩的石英外壳却熔化成奶油色。

Sedimentary rocks and clays have long been thought to be the most promising place to look for life on Mars.

长期以来，科学家便相信沉积岩和沉积粘土是寻找火星生命迹象的最理想所在。

Sedimentary rocks can be classified according to their composition and texture.

根据成分和结构是可以将沉积岩作进一点划分。

Sedimentary rocks form when sediments become pressed or cemented together or when sediments precipitate out of a solution.

沉积岩形成时，沉积物中，成为压或胶结在一起或当沉积物中沉淀出的一个解决办法。

However, the Precambrian sedimentary rocks are so minor that they cannot reveal the shape of the old blocks.

这一现象不但是地壳演化的普遍规律，而且也可反过来用沉积岩反映陆壳的演化。

Formed from matter deposited by water, as certain sedimentary rocks.

水成岩由水中沉淀的物质形成的，如某种沉积岩

The study of balanced cross section indicates that its structure has the characteristics of a composite superposition basin. Its double basements are Archaeozoic and Lower Proterozoic crystalline basement and Paleozoic cratonic basin sedimentary rocks. The infill of the sag mainly includes Mesozoic and Cenozoic systems.

平衡剖面研究成果表明其具有复合叠加盆地结构，太古界—早元古界结晶基底和古生界克拉通盆地沉积构成盆地的双层基底，中、新生界是盆地的主要沉积盖层。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。