查询词典 basic carbonates

Microspar structures carbonate is characterized by elphent tooth-like structure consisting of fine, equant sparry calcite crystals, and hosting rocks is mainly fine-grained carbonates with mud.

臼齿构造碳酸盐岩是一种具有类似于大象臼齿特征的特殊碳酸盐岩，其微亮晶脉由纯净的、基本等粒的方解石构成，而基质物质则由细粒的、富泥质的灰岩组成。

Microspar structures carbonate is characterized by elphent toothlike structure consisting of fine,equant sparry calcitecrystals,and hosting rocks is mainly finegrained carbonates with mud.

臼齿构造碳酸盐岩是一种具有类似于大象臼齿特征的特殊碳酸盐岩，其微亮晶脉由纯净的、基本等粒的方解石构成，而基质物质则由细粒的、富泥质的灰岩组成。

The whole sintering process of SHS converter fettling materials can be divided into three steps. The first step is the decomposition reaction of carbonates and sodium nitrate, which is an endothermic reaction. The second step is the SHS reaction, i. e. thermite reaction, the metal of Al reacts with CO〓, O〓, NO〓, Fe〓O〓 to form Al〓O〓. The speed of thermite reaction is very quick, and accompanied with large amount of heat emission and temperature rise. The third step is the reaction of spinels formation. The Al〓O〓 produced by SHS reacts with MgO to form spinels.

整个SHS补炉料的烧结过程分三步进行：第一步为碳酸盐、硝酸钠的分解反应，属于吸热反应；第二步为SHS反应即铝热反应，金属铝粉与CO〓、O〓、NO〓、Fe〓O〓等反应生成Al〓O〓，反应速度很快，并伴随有巨大的放热和温度升高；第三步为合成尖晶石的反应，SHS反应产物Al〓O〓与MgO反应生成尖晶石。

The upper layer, with homogeneous composition, is mainly composed of intact phosphatic foraminifer fossils and nannofossils as well as abiotic carbonate fluorapatites, representing the biologic and autogenic origin. However, the lower layer, with visible metasomatic texture and relatively high Si, Al, K and Fe, is notably different from the upper one, and seems to have been formed mainly by replacement of carbonates.

上层磷酸盐由大量形态结构清楚的磷酸质有孔虫和超微化石以及非生物碳氟磷灰石组成，成分均一，杂质少，表现出生物成因和原生白沉积特点；下层磷酸盐变化复杂，具有特征的交代结构，混杂较高的Si、Al、K、Fe成分，显示以磷酸盐交代碳酸盐成因为主。

Carbonates also occupy an important component, with E271 from 5.9% to 27.57% and E272 from 6.67% to 38.20%. A few foraminifer fossils were found in the sediment cores. These sediments are rich in Cu, Pb and Zn which are fallout from hydrothermal plume with iron oxides.

热液桩的沉积作用，使Cu、Pb和Zn在沉积物中富集，Cu/Fe、Pb/Fe和Zn/Fe比值低于热液喷口处的颗杜物中值，Pb表现出在海水中运移距离较短或者只有少量Pb随热液柱扩散运移。

A schematic model was proposed to illustrate the occurrences of various lithologies and lithofacies associations. The erosional surfaces on siliciclastic mudstones, funnel-shaped structure, and the exhuming of massive cold-seep carbonates exposed might have been occurred concurrently during a tectonic unstable time in SW Taiwan. The deposition of fossiliferous mudstone interfingered with the conglomerate lithofacies, and represented the rapid facies transition from siliciclastic (non-carbonate) into carbonate environment.

综合岩相观察结果，建构一个符合台湾西南部更新世珊瑚礁与基底泥岩接触关系的沉积相模式；其中，基底泥岩顶部的不规则冲蚀面、充填碳酸盐胶结泥岩砾与碳酸岩烟柱的漏斗状沉积，以及块状冷泉碳酸盐岩的出露，可能均为区域地质构造活动时期所造成；至於与含化石泥岩同时沉积的砾岩相，可能均为基底泥岩在快速浅化的过程中所沉积，标志古环境由矽质碎屑快速转变为碳酸盐环境的过程。

But none have been found. That means any oceans were cold or short-lived or ice-covered or otherwise hostile to carbonates.

这表示火星上的任何海洋都是寒冷的、或存在时间很短、或被冰覆盖、或有其他原因，而不利於碳酸盐形成。

These data are incompatible with the excursion scenario unless (1) carbonates deposited during a negative δ13C excursion are more susceptible to later δ18O metamorphic alteration in proportion to their negative δ13C value, or (2)δ18O of sea water decreases as δ13C of sea water decreases to produce an array that fortuitously resembles the Cenozoic lithification domain Fig.

这些数据与想象的同位素漂移情况不一致，有两个因素应当考虑在内。1。碳酸盐在δ13C存在负值漂移时沉积更加容易受到后期δ18O变质交代作用的影响，这种影响与δ13C成比例。2。海水δ18O与δ13C的同步减少使得数据出现在图表上的近似新生代成岩作用区域，这种情况属于偶然情况。

The causes and mechanisms of fouling are studied based upon the field investigation and laboratory analysis,which show that the major components of the fouling are calcium and magnesium carbonates with calcium carbonate in large percentage.

结果表明污垢的主要成分为钙和镁的碳酸盐，其中主要是碳酸钙。

A rock containing clay materials and calcium and magnesium carbonates, with approximately the same composition as marl .

泥灰岩一种含粘土物质、钙和镁碳酸盐的岩石，其成分与泥灰土大体一致

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。