碳酸盐沉积物

与现代碳酸盐沉积物相比，太原组灰岩具有较高的Mn和Fe含量，明显低的Sr含量和δ18O值。

In comparison of modern carbonate sediments , the limestone in the Taiyuan Formation is characteristics with high contents of Mn and Fe , distinctly low contents of Sr , and obviously low δ 18O values .

一切环境的碳酸盐沉积物，基本上都是古代生物化学体系的产物。

Carbonate sediments in all environments are basically products of an ancient biochemical system .

本文用ESR断代法测定某些碳酸盐沉积物的年代，其结果与~（14）法符合得很好。

Ages of some carbonate deposites sampled in South China were determined by ESR dating . The results show a good consistence with the Carbon-14 method .

钙华作为岩溶作用的产物，又称泉华或石灰华，是指湖泊、河流或泉水所形成的以碳酸钙为主的碳酸盐沉积物。

Tufa , as a product of karstification , is a carbonate sediment in pools , rivers , or springs .

碳酸盐沉积物特殊的成岩机理和过程决定了有机质的复杂赋存状态，在碳酸盐岩中，除分散有机质外，还存在包裹体有机质。

The existing state of organic matter in carbonate rocks not only has dissemination state , but also has inclusion state .

在浅水台地相区，沉积旋回的顶部往往出现短期沉积间断，导致碳酸盐沉积物经历大气淡水淋滤与溶解作用，形成溶蚀孔隙。

Frequent short-time exposure at the top of the depositional cycle resulted in the formation of vugular-pore in carbonate deposits subjected to leaching and dissolution of meteoric fresh water .

在中欧地区的河谷、洪积扇、山坡坡麓及湖底常零星分布着更新世及全新世的碳酸盐沉积物。

Pleistocene and Holocene freshWater carbonate is often scattered in valleys , on alluvial fans , at the foot of mountain slopes and the bottom of lakes in Central Europe .

生物礁滩是一种特殊的碳酸盐岩沉积物，具有独特的油气储集空间，是一种优良的碳酸盐岩储层。

Reef-beach is a special type of carbonate sediments , which has peculiar hydrocarbon pore volume and is an excellent carbonate reservoir .

碳酸盐岩沉积物，非凡是生物礁，只有在现代海洋动物群落和植物群落生态学具体资料的帮助下才能获得有益的研究成果。

Carbonate sediments , in general , and reefs , in particular , can only be studied profitably with the aid of a detailed knowledge of the ecology of modern marine fauna and flora .

△C的矿物成分主要是铁锰的碳酸盐系列，东海沉积物△C矿物成分以菱铁矿为主。

C is mainly of ferromanganese carbonate series , and ? C mineral composition of sediments in the East Sea is dominated by siderite .

由于CO2的溶解与吸收以及有机物的降解造成了海洋环境的日益酸化，引起了海水中碳酸盐溶解度增大；沉积物中酸碱环境的变化也与有机物的矿化以及碳酸盐的溶解、沉淀过程密切相关。

But , the increasing acidification of marine environment caused by CO_2 dissolution and organic matter degradation brought about the solubility augmentation of carbonate in seawater .

结果表明，沉积物中碳酸盐含量明显受沉积物粒度组成和物源的影响。

The results show that carbonate content is influenced by grain-size composition and source of the sediments .

铁锰矿赋存于下三叠统菠茨沟组浅海相泥质&碳酸盐类的混合沉积物中，地层、岩性控矿明显。

Fe-Mn ores are confined to the neritic argillaceous-carbonate formation of the Lower Triassic Bocigou Formation and controlled by the stratum and lithology .

碳酸盐体系是深海沉积物、海洋贝类生物微环境以及海底热液和冷泉研究的重要内容，对研究全球碳循环和全球气候变迁具有重要意义。

Inorganic carbon system is an important part of studying deep sea sediment , shellfish microenvironment , and the hydrothermal and cold seep . It is also of great significance to study the global carbon cycle and the global climate change .

碳酸盐胶结不普遍；碳酸盐沉积物的胶结作用并分析其对红粘土中粘土矿物颗粒的胶结作用及产生结构强度的原因。

And analyzes the cementation of free iron oxide to clay mineral grain and the causes of coming into being structure strength .

我们认为这是碳酸盐不饱和的热水溶液对碳酸盐沉积物中轻碳同位素（~（12）C）优先淋滤的结果。

This may be due to preferential leaching of light carbon isotope ( 12C ) out of carbonate sediments by hydrothermal fluids .