欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
模拟热液型金矿床中黄铁矿生成的地质条件,采用硫酸亚铁（FeSO4）和硫代乙酰胺（CH3CSNH2）为铁源和硫源,在Fe/S比为1∶3、温度180～200℃、加热时间24h条件下考察黄铁矿的结晶情况。用SEM扫描电镜观察在不同水热条件下合成黄铁矿的形态及成分;用多晶X射线衍射仪（XRD）确定了产物物相组成;用透射电子显微镜（TEM）观测表征了黄铁矿晶体的形态和结构。结果表明：在200℃时黄铁矿为粒状,粒度较均匀,粒径1μm左右。在180℃时黄铁矿除有尺寸在1μm左右粒状黄铁矿外,还有不规则带状黄铁矿晶体,带宽为200nm左右。认为水热条件中,随着结晶温度的逐步升高,黄铁矿的形貌逐步由不规则形状向规则形状的转变。所以在实验温度较高阶段,形成规则的粒状形貌;在低温阶段,则会出现不规则带状形貌。
英文摘要：
By simulating the geological conditions of forming pyrite in hydrothermal gold deposits, using FeSO4 and CHa CSNH2 as raw materials, and keeping the ratio of Fe/S at 1 ： 3, the powder crystals of pyrite （FeS2） were prepared by heating for 24 hours in a certain temperature between 180 - 200 ℃. The morphology and components of the pyrite crystals synthesized by different hydrothermal conditions were observed by scanning electron microscopy. The phase composition of experimental product was determined by XRD. The morpholo- gy and micro-structure of the pyrite grains were systematically observed by using transmission electron micro- scope. The results indicated that at 200 ℃, the pyrite was relatively uniform granular with the particle size about 1 μm; at the temperature of 180 ℃, besides the granular pyrite with size of 1μm synthesized, there were also irregular banding pyrite crystals with the bandwidth of 200 nm. With the gradual increase in crystal- lization temperature, the crystal morphology changed gradually from irregularly shaped crystal to regular shape crystal. In high experimental temperature, there would be the granular morphology, whereas in low tempera- ture, irregular ribbon morphology would appear.
同期刊论文项目
同项目期刊论文
Microscopic Observation and Stability Study on the Fe_3s_4 Nanocrystals Synthesizedunder Thermal and
Light Absorption Characteristics of Multi-Morphology FeS2 Granular Synthesized Under Hydrothermal Co
Discovery and geological significance of telluride minerals in the Yinggezhuang gold deposit, Rushan
Low-Al and high-Al trondhjemites in the Huai'an Complex, North China Craton: Geochemistry, zircon U-
Stable isotopes and noble gases in the Xishimen gold deposit, central North China Craton: metallogen
Mesozoic magmatism and metallogenesis associated with the destruction of the North China Craton: Evi
Source characteristics and fluid evolution of the Beiyingxigou Pb-Zn-Ag deposit, central North China
Charateristics of the genetic mineralogy of pyrite and its significance for the prospecting in the D
Laser probe 40Ar-39Ar dating for quartz from auriferous quartz veins in the Shihu gold deposit, west
The Beiminghe skarn iron deposit, eastern China: Geochronology, isotope geochemistry and implication
THERMOLUMINESCENCE (TL) ANALYSIS FOR OTOLITHS OF THE WILD CARPS (CYPRINOID) FROM BAIYANGDIAN LAKE AN
Significance of zircon trace element geochemistry, the Shihu gold deposit, western Hebei Province, N
ISOTOPE GEOCHEMISTRY OF THE SHIHU GOLD DEPOSIT, HEBEI PROVINCE, NORTH CHINA: IMPLICATION FOR THE SOU
Geochronology and petrogenesis of Neoarchean potassic meta-granites from Huai';an Complex: Implicati
Laser Ablation ICP-MS U-Pb Zircon Geochronology of Granitoids and Quartz Veins in the Shihu Gold Min
Geodynamics of gold metallogeny in the Shandong Province, NE China: An integrated geological, geophy
Oxygen, boron, chromium and niobium enrichment in native Au and Ag grains: A case study from the Lin
Magmatism and metallogeny associated with mantle upwelling: Zircon U-Pb and Lu-Hf constraints from t
Metallogeny in response to lithospheric thinning and craton destruction: Geochemistry and U-Pb zirco
Geochemistry, and zircon U-Pb and molybdenite Re-Os geochronology of Jilongshan Cu-Au deposit, south
期刊信息
位置：