The morphology, character and distribution of Navajo haematite concretions allow us to infer host-rock properties and fluid processes necessary for similar features to develop on Mars.

地球上納瓦霍沙巖與火星上Meridiani Planum之間的類比表明，火星上積累的球狀赤鐵礦是在有一種可滲透的主體巖石欧美日韩不卡、地下水流和一個(gè)化學(xué)反應(yīng)鋒面的條件下形成的谁有黄色网址十八岁禁止。

After analysing the material composing of the haematite, the research adopts acid leaching—replacement processes to utilize and reduce resource.

本研究通過分析赤鐵礦中的物質(zhì)構(gòu)成，對赤鐵礦尾礦采用酸浸—還原工藝黄片男女毛片男女，實(shí)現(xiàn)固廢資源化网站你懂在线观看亚洲国产精选、減量化的目的。

Electrophoresis measurements of uniform colloid particles including latex and haematite particles have been made in various chemical conditions to test the developed model.

在不同化學(xué)條件下性屋视频在线，對均勻膠體顆粒(包括聚苯乙烯Latex顆粒和α-Fe_2O_3顆粒)進(jìn)行電泳測定來驗(yàn)證該模型色综合久久久久久久久五月。

Interpretation of the magnetic parameters suggests roughly constant proportions of haematite and magnetite with a predominance of ferrimagnetic grains in superparamagnetic and multidomain + pseudo singledomain grain sizes.

各監(jiān)測點(diǎn)磁性參數(shù)的測試結(jié)果表明，高矯頑力的&赤鐵礦&和低矯頑力的&磁鐵礦&的含量之比大致變化不大国产在线A级在线视频，在這些氣溶膠中欧美精品亚洲人成在线观看，在超順磁、多疇和偽單疇的礦物晶體顆粒中99久久影院亚洲精品图片，以亞鐵磁性礦物占優(yōu)黄片,男女大片,一级毛片,国产三级片。

Chemical analyses of ores sampled from different elevation at the representative Zoujiashan uranium deposit indicate that Fe〓O〓, FeO, MgO and P〓O〓 increase evidently with depth which is related to alteration of haematite, chlorite and apatite, Na〓O and Na〓O+ K〓O also increase with depth, reaching a maximum of Na〓O at 911 meters below the surface, which suggests alkaline alteration increases downwards. At depth of 90 meters below sea level, where the boundary of the two cycles of the volcanic rocks is located, CaO reaches the maximum, representing maximum of alteration of fluorite.

對典型礦床不同富集標(biāo)高礦體的化學(xué)全分析結(jié)果表明：隨深度增加，F(xiàn)e〓O〓狼友视频在线观看免费、FeO美国一级理论片在线看免费、MgO及P〓O〓的含量有明顯增高的趨勢黄视频免费的，這與赤鐵礦化、綠泥石化及磷灰石化有關(guān)中文字幕第38页永久乱码；-90m標(biāo)高的CaO含量最高日本爆乳和服在线观看，達(dá)17.67％，反映這一部位的螢石化最發(fā)育又大又长又粗的国产毛片视频；Na〓O及Na〓O+K〓O的含量由淺入深也存在明顯的增高趨勢www.黄色网站免费在线观看，且Na〓O的含量在911m深處為最高，這充分顯示堿交代作用從上到下有增強(qiáng)的趨勢日韩主播欧美精品视频在线播放，而鈉長石化在911m處最強(qiáng)烈天天操,综合色。

These samples were collected along a main street across the urban area and a mountain route from foot to the top. Results demonstrate that the main magnetic minerals in the street dust are magnetite, maghaemite and haematite with some paramagnetic minerals. Plots of Mrs/Ms vs. Bcr/Bc and Xfd % vs. X ARM/SIRM indicate that the main grain size of magnetic minerals in the street dust are pseudo single domain. The results reveal that the Lanzhou city is more polluted in spring than in summer. The main pollution sources are anthropogenic activities （81.9%） and natural dust （18.1%）, especially the former. The spatial distribution of pollution is controlled by the topography and weather conditions.

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The glossary provides information relating to commonly occurring metals and ores such as gold, copper, chalcopyrite, haematite, pyrite, molybdenite and sphalerite, and gives details of some common mineral assemblages.

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