铁白云石

碳酸盐岩中自生碳酸盐矿物主要为文石、高镁方解石，少量白云石、铁白云石和菱铁矿。镁方解石质生物富积带（60-400m）；

X-ray studies show that carbonate minerals are aragonite , high-Mg calcite , and lesser dolomite , ankerite and siderite . 2 . Rich magnesium calcite organism accumulation zone , whose depth distribution ranges from 60-400m ;

铁白云石微斜长石岩作为一种特殊岩石类型，在辽东元古宙裂谷块状硫化物矿床中与成矿关系密切。

Ankerite microclinite , a special type of rock , is closely related to the ore-forming process of massive sulfide deposits in the East Liaoning Proterozoic rift .

通过对X-射线衍射谱图的分析，计算出Ca离子和Mg离子的mol分数，鉴别出铁白云石和含铁白云石，为研究成岩作用和白云化模式提供实验依据。

By analysis to X-ray diffraction spectrum , computing out the mole factions of Ca and Mg ions , distinguishing out ankerite and ferrodolomite , for studying the diagenesis and dolomitization model , the experiment basis is provided .

铁质碳酸盐包括早期铁白云石-白云石，铁白云石和后期含方解石和石英的菱铁矿。

Fe-carbonates include early ankerite-dolomite , ankerite and later siderite with calcite and quartz .

含铁白云石石英脉；

Ferriferous dolomite quartz veins ;

载金矿物为沿糜棱面理分布的细粒黄铁矿、动态重结晶石英集合体及铁白云石。

Gold carrier minerals are fine-grained pyrite , recrystallized quartz aggregates , and ferrodolomite along foliations of mylonite .

碳酸岩是一种富含碳酸盐矿物（方解石，白云石，铁白云石等>50%以上）的火成岩。

Carbonatite is a light grey or offwhite igneous rock rich in carbonate minerals ( calcite , dolomite , ankerite etc. , above 50 % ) .

矿石类型分石英脉型和黄铁矿型两种，矿石金属矿物主要为黄铁矿和方铅矿，脉石矿物主要为石英、铁白云石。

There are two ore types : quartz vein and pyrite type , ore minerals are mainly pyrite and galena , gangue minerals are mainly quartz and iron-rich dolomites .

斜方辉石和橄榄石鬣刺呈中空骸晶状，大部被滑石、铁白云石、绿泥石、磁铁矿等取代，但仍保留完好的长柱状假像；

Orthopyroxene and olivine spinifex shows intermediate hollow skeletal crystal , most of which are replaced by talc , ankerite , chlorite and magnetite , but still keeps undamaged columnar pseudomorphism ;

碳酸盐胶结物是东海盆地丽水凹陷古近系储层砂岩中最为重要的自生矿物，主要类型为铁白云石和方解石。

Carbonates are the most abundant cements in the Palaeogene sandstones of Lishui Sag , East China Sea basin , which mainly consist of ankerite and calcite and have distinctive stratigraphic distribution and geometry .

金矿体的顶底面常被铁白云石蚀变岩和糜棱岩所包裹，而且部分蚀变岩的金含量也达到工业品位，石英脉与蚀变岩共同构成矿体。

The top and bottom of gold quartz vein were enveloped by ferroan dolomite altered rocks and mylonites , the gold content of some altered rocks had reached the industrial tenor , so the gold lode was composed of quartz vein and altered rocks .

主要成岩作用开始发生的先后序列为：压实作用、方解石胶结→碎屑石英次生加大和粒间微粒石英形成→铁方解石胶结→铁白云石胶结；

The main diagenetic events such as compaction , cementation of calcite , quartz , ferroan calcite , ferroan dolomite started successively .

云冈石窟地区云冈组上段砂岩中碳酸盐胶结物的含量普遍在10%以上，其主要矿物成分为含铁方解石和含铁白云石。

Carbonate cement is universally more than 10 % in sandstones of the upper Yungang formation in Yungang Grottoes area . It 's mainly composed of ferriferous calcite and ferriferous dolomite .

原矿中总铁的18.1%分布于铁白云石、绿泥石、黄铁矿和黄铜矿中，限制了精矿铁回收率提高。

Iron ore 18.1 % of the total iron found in dolomite , chlorite , pyrite and chalcopyrite , and limit recovery rate of iron concentrate .

碳酸盐胶结的主要类型是方解石胶结，同时也含有少量的铁方解石和极少量的铁白云石胶结。

The main type of carbonate cement was calcite cementing , with little ferrocalcite cement and rare ferrodolomite cement .