资源圆桌：磷矿大省的磷产业振兴之路

湖南省磷矿资源储量丰富，在全国排第四，但是湖南在磷资源开发利用上面广、点多，集中度不高，没有在国内有竞争力的大企业，磷化工产值远落后于国内其他磷资源丰富的省份，与磷资源大省的身份不符。近日，在湖南省磷矿资源管理与产业发展对策座谈会上，来自中南大学．湖南化工研究院等科研院所的专家，分析湖南磷产业发展现状，共话湖南真正盛为磷矿大省的必由之路。     

湖北省磷矿资源特征及省级实物地质资料筛选

湖北省磷矿有资源储量丰富、分布集中、层系稳定、成矿时代集中、成因类型简单等特点。本文在分析湖北省磷矿资源特征的基础上，提出磷矿实物地质资料的筛选应遵循典型性、代表性、特殊性和系统性的基本原则，充分考虑矿床类型、矿床规模、成矿时代、成矿区带等条件，在全省筛选出了12个符合条件的磷矿床，为湖北省系统开展Ⅱ类磷矿实物地质资料管理工作提供了依据。     

湖北省磷矿资源的空间富集规律及其产业布局

湖北省的磷矿资源储量居全国之首,矿床类型以元古宙海相沉积型磷块岩矿床为主,分布集中在五大区域,开发利用条件较好。虽然湖北的磷矿资源勘查近年取得了突破性的进展,但由于资源利用合理度欠缺、磷化工企业规模小、产业链不完善及产业集中度低等原因,对磷矿开发和磷化工产业的可持续发展构成了制约。磷矿资源的合理开发利用对建设磷矿开发及磷化工产业集群、保障国家粮食安全具有重要意义。因此,在勘查部署上,要根据成矿条件、空间富集规律和勘查开发现状,统一部署,分类开展工作;在产业布局上,以宜昌、保康、荆襄、黄麦岭4大磷化工基地为主体,新建鹤峰、黄梅磷肥基地,打造"一圈多点"式产业集群;在产业关联上,新建磷矿产地与现有磷化工基地之间形成以老带新、以新助老、空间互动的产业格局;在产品分工上,支持现有磷化工基地内的骨干企业兼并重组,提高产业集中度。     

我国磷矿资源

磷矿石主要用来制取磷肥,其次用于生产黄磷、赤磷,磷酸和其他磷制品。我国磷矿资源储量达133.45亿吨(截止1985年底全国磷矿保有储量统计资料),居世界第四位。已探明的磷矿产地296处,其中大型矿床32处,中型矿床78处,小型矿床186处。磷矿石质量优     

辽宁仰山磷矿地质特征

辽宁省盖县仰山磷矿是近年探明的一个沉积变质磷矿床,是辽宁省的重要磷矿产地之一。这个磷矿床的成因类型、储量规模、含磷品位大致与复县罗屯磷矿相同,赋存条件基本清楚。对目前严重缺磷而震旦系地层广布的华北、东北、地区来说、研究仰山磷矿的地质特征有着一定的实践意义。     

胶磷矿反浮选白云石的研究及工业前景

近几年来对硅钙质胶磷矿采用反正浮选或正反浮选流程的试验研究有了很大突破,克服了单一正浮选磷精矿质量低、磨细度要求高等缺点。根据保康磷矿的反正浮选试验实践和安宁等几个磷矿的试验结果,表明以反浮选为基础流程的工艺是硅钙质胶磷矿矿石性质所决定的。采用此工艺具有矿浆浮选温度低、磨矿粒度较粗、工艺简单且操作稳定、精矿易过滤且尾矿易沉降、精矿质量高等5大特点。此工艺流程易于实现工业化。     

川南硫铁矿开发方式探讨

通过对开发川南硫铁矿利弊的剖析，认为应扬长避短，充分发挥川南地区硫、磷、煤、天然气、水等资源配套的优势，建立以生产磷铵、水泥为最终产品的企业集团，形成相应的开发体系．从而使其走上资源一经济效益一环境良性循环的轨道。方案论证表明．目前暂不开发区内的马边磷矿，而就近利用金河、开阳磷矿，可获得更佳的经济效益。     

嗜酸氧化硫硫杆菌对中低品位磷矿的溶磷效果研究

<正>磷矿石是磷化工产业的源头,它是保障磷化工生产的基本生产资料。在工业上能够提取磷的主要含磷矿物是磷灰石[Apatite,化学式为Ca5[PO4]3(F,Cl,OH)],其次有硫磷铝银石、鸟粪石和蓝铁石等。我国的磷矿资源总的储量比较丰     

四川马边地区找矿新发现：磷—铅—萤石矿三位一体找矿新模型

近年,在实施马边地区永红磷矿勘探项目过程中,新发现了铅矿和萤石矿,从此建立了马边地区磷—铅—萤石矿三位一体找矿新模型,促进了马边地区从以往的单一矿种（磷矿）勘查开发历史转型升级为目前的多矿种多空间（磷—铅—萤石矿）勘查开发现状。四川恰好属于缺乏萤石矿和无萤石成矿区带的地区（王吉平等,2010）,在川西南峨边—金阳大断裂带上的马边地区发现萤石矿床,萤石在战略性新兴产业中有重要应用,未来需求将呈快速增长趋势（陈军元等,2021）,无疑对乌蒙山马边地区的扶贫攻坚和经济发展具有实际意义,对川西南峨边—金阳大断裂带的区域找矿工作具有重要的指导意义。     

河北省阳原—怀来地区岩浆岩型磷矿成矿预测

<正> 河北阳原—怀来地区岩浆岩型磷矿成矿条件较好,其成矿预测是我们1989年的研究成果。交流这一研究成果,希望引起有关部门的注意,目的在于加强北方找磷工作,在北方找到更多工业磷矿床。一、国内外岩浆岩型磷矿概况岩浆岩型磷灰石矿多为中低品位(P_2O_53～20%),但由于其可选性良好,磷精矿比沉积磷块岩精矿有更高的品位,在大于36%(P_2O_5)的世界商品矿产量中,火成磷灰石矿占     

The terrestrial fauna of the Late Triassic Pant-y-ffynnon Quarry fissures,South Wales,UK and a new species of Clevosaurus (Lepidosauria: Rhynchocephalia)

Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco.     

Définition d'une limite multicritère ; stratigraphie du passage Campanien–Maastrichtien du site géologique de Tercis (Landes,SW France)Definition of a multi-criteria boundary; stratigraphy of the Campanian–Maastrichtian interval of the geological site at Tercis (Landes,SW France)

Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.     

The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts

The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H₂O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H₂O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species.     

Late Wuchiapingian (Late Dzhulfian,early Late Permian) limestone olistolites within the Tertiary flysch of Glypia Unit (Mount Parnon,central–eastern Peloponnesus,Greece)

Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931.     

PALEONTOLOGY

正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.)     

GEOCHEMICAL EXPLORATION

正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.)     

MICROPALAEONTOLOGY

正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.)     

PETROLOGY

正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus.,     

ENVIRONMENTAL GEOLOGY

正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an     

PROSPECTING EXPLORATION

正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of