黔北务正道地区铝土矿稀土元素地球化学特征与富集规律研究

稀土元素(REE)特征差异分析,可探寻铝土矿成矿期相关地质信息。通过大量的野外地质调查,含矿岩系不同类型的铝土矿取样,采用电感耦合等离子质谱仪(ICP-MS)对采集样品进行测试分析得出:铝土矿REE总量(ΣREE)具有碎屑状土状致密块状豆鲕状黑色炭质页岩的特点;铝土矿在成矿期及成矿后期可能受到淋滤作用导致铝土矿层中的稀土元素轻稀土相对富集,重稀土相对亏损;豆鲕状铝土矿中的金红石、锐钛矿等矿物富集可能是导致重稀土元素的相对富集的主要原因;不同类型铝土矿REE球粒陨石标准化配分模式具有δEu1,表示Eu负异常,δCe1,表示Ce正异常。综合分析认为研究区沉积环境为被动大陆边缘近海湖陆相氧化沉积环境。     

轻骑兵 音乐无处不在

奔波于浮生世界,难免身疲力竭。渴望回到家中,渴望享受一丝宁静与安逸。家,人生旅途的避风港;音乐,怡情悦性的"心灵鸡汤"。守于居所,偷得片刻清闲,惬意酣饮剂滋润的良方,夫复何求?当疲痹之身归于巢,轻柔的乐声缓缓响起,那些散落于处处浅吟低唱的音箱小精灵,在不经意间为我们抚平疲惫与感伤。     

贵州镇宁—紫云地区重晶石矿床特征与找矿预测

为探寻镇宁-紫云地区重晶石的找矿靶区,本文通过对区内的矿床地质特征、地球物理、地球化学、岩相古地理等特征进行详细分析,探讨区内的重晶石的找矿潜力,预测区内找矿靶区。通过上述方法分析得出区内典型乐纪重晶石矿床属于超大型矿床,矿体产于泥盆系榴江组(D_3l)地层中下部,自下而上分布Ⅰ、Ⅱ、Ⅲ矿层,初步分析属于热水成因矿床。在洗鸭河、喜然、小屯等地区,大面积的含矿地层埋藏地层深部,具有较大的找矿潜力。根据区内找矿潜力分析结果将洗鸭河地区、喜然地区、小屯3个找矿潜力大的区域圈定为最佳找矿靶区。     

贵州省六盘水地区瓦斯富集因素分析

瓦斯是一种高能而无污染的能源之一,现也成为科学界研究的重点方向.在收集研究区大部分矿井瓦斯含量的基础上,从煤层的变质程度、顶底板的岩性、煤层厚度、地质构造等因素综合分析了贵州西部重要产煤区-六盘水地区影响瓦斯富集的主要因素,分析结果认为瓦斯的富集的因素必须同时具有生、储、密3个条件,在研究区的煤层变质程度、煤层顶底板岩性特征、煤层厚度和构造特征具备生、储、密3个条件的区域很可能就是瓦斯富集的远景区,而且在这些区域可能也是瓦斯灾害防治的重点区域.     

A new type of rare earth elements deposit in weathering crust of Permian basalt in western Guizhou, NW China

A new type of rare earth elements （REEs） deposit was discovered from the gaolinite mudstone in the weathering crust of Permian basalt, Bijie region, western Guizhou, China. It contained ∑RE2O3 0.065%-1.086%. This type of REEs deposit was widely distributed with steady horizon and thickness of 3-4 m. The ore-bearing weathering crust （kaolinite） of the three discovered REEs deposits belonged to the third episode of the Emeishan basalt eruption. The new type of REEs deposit was suggested that basalt （tuff） weathering could lead to the enrichment of the rare earth elements. Therefore, it is of important economic significance to explore REEs deposits in the weathering crust of basalt （tuffs） in Yunnan, Guizhou, and Sichuan Provinces.     

Rare earth elements stratigraphic significance in late Permian coal measure from Bijie City, Guizhou Province, China

Rare earth elements (REEs) are good geological indicators. In order to understand REEs stratigraphic significance, REEs m Late Permian coal measure from Bijie City, western Guizhou Province, China were studied. The results showed that the contents of both light rare earth element (LREE) and ∑ REE were sharply increased in the boundary between Longtan Formation and Changxing Formation, which resulted from the gyration and discontinuity eruption of Emeishan basalt (REEs source) and frequent transgression-regression during forming coal. The coal measure and strata could be subdivided and correlate, and the sea-level change could be under stood by studying REEs content variation in coal measure.     

REE Enrichment in Early Cambrian Gezhongwu Formation Phosphorous Rock Series in Sanjia, Zhijin County, Guizhou Province, China

The phosphorus-bearing rock series at the bottomof the Cambrian Systemin Guizhou was characterizedby REE enrichment.Among REE,Yis most abun-dant,accounting for35%~40%of the total REE.Generally,the Y-group REEs account for45%~59%of the total amount;the contents of the Ce-groupREEs are slightly higher than those of the Y-groupREEs,accounting for54.4%.With the exception ofmonazite which is occasionally seen,no independentREE mineral has beenfound.The enrichment rates ofΣREE2O3and Y…     

贵州龙宫贵州龙化石首次发现区地质特征及寻找标志探讨

在贵州安顺龙宫镇首次发现了龙化石,其体型较大、保存较完整,在该地层中发现的贵州龙化石无论个体大小或是保存的完整度都属于重大发现。通过对区内的地层、构造、贵州龙化石保存岩系特征、贵州龙化石特征、岩相古地理等方面进行详细分析,探讨区内的贵州龙化石的寻找标志,为三叠纪海生爬行动物生态及演化研究区内贵州龙的寻找、发掘、保护等工作提供基础资料,同时也为地方旅游资源开发起到助推作用。     

清丽之姿 明秀之态 海尔INNOV+L52A18-AKD

A18系列是海尔今年主推的高端液晶电视系列,其无论是在外观设计还是在显示性能方面都堪称市场之中的翘楚,而52英寸的L52A18-AKD便是这个系列中尺寸最大的一款。