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| 1 | Carbonatites and Alkaline Igneous Rocks in Post-Collisional Settings:Storehouses of Rare Earth Elements显示文摘The rare earth elements(REE)are critical raw materials for much of modern technology,particularly renewable energy infrastructure and electric vehicles that are vital for the energy transition.Many of the world's largest REE deposits occur in alkaline rocks and carbonatites,which are found in intracontinental,rift-related settings,and also in syn-to post-collisional settings.Post-collisional settings host significant REE deposits,such as those of the Mianning-Dechang belt in China.This paper reviews REE mineralization in syn-to post-collisional alkaline-carbonatite complexes worldwide,in order to demonstrate some of the key physical and chemical features of these deposits.We use three examples,in Scotland,Namibia,and Turkey,to illustrate the structure of these systems.We review published geochemical data and use these to build up a broad model for the REE mineral system in post-collisional alkaline-carbonatite complexes.It is evident that immiscibility of carbonate-rich magmas and fluids plays an important part in generating mineralization in these settings,with REE,Ba and F partitioning into the carbonate-rich phase.The most significant REE mineralization in post-collisional alkaline-carbonatite complexes occurs in shallow-level,carbothermal or carbonatite intrusions,but deeper carbonatite bodies and associated alteration zones may also have REE enrichment. | Kathryn M.Goodenough Eimear A.Deady Charles D.Beard Sam Broom-Fendley Holly ALElliott Frederick van den Berg HüseyinÖztürk | 2021 | Journal of Earth Science2021，32，6： | 2 |
| 2 | 应用新感应测井仪测出一组完整的数据显示文摘设计优良的组合型感应测井仪与常规感应测井仪不同之处在于它能测量一组完整的数据。在这整套数据中,属于要研究的地层体积的所有有用信息,是利用感应测井原理,通过间距合适的多个分阵列和全范围的工作频率测得的。该组合测井仪测量的数据可以各种方式进行处理,给出具有预期特性的测井曲线,如探测深、垂向分辨率好。此外,如果数据完整,可用来合成其他感就测井仪响应,如常规的深和中等感应线圈系的响应。当需要阵列型测井仪的先进特性时迪种能力就是项优点;不过,还需与常规测井仪测的其他井的测井曲线对比。该组合测井仪还拥有相当量的多余信息,以供自检,并替代因部分测井仪损坏而漏测的数据。为了证实该测井仪所采集的数据中具有多余信息,我们提供了二.个实例。利用该测井仪测的其他测量值可以合成检波器元件之一的响应。为了实时处理,选择一种滤波法进行合成。该方法通过组合阵列感应测量合成常规测井仪的响应。为确保相同的视电导率读数,对解法进行优化,以使合成测井曲线的等效几何因子与我们要模拟的测井仪的因子相同。采用二次程序编制法得出最佳滤波器系数。在优化过程中,将误差传播考虑进去,因而处理后的测井曲线的噪声影响就不会有大于输入的测井曲线的噪声级。用一维和二维数值模型进行了广泛检验,确保处理质量。本文提供了一个油田测井曲线实例,在同一口井用阵列感应测井仪和常规感应测井仪进行测井,以说明该测井仪聚焦的灵活壮和数据处理算法的有效性。 | Q.Zhou D.Beard J.Wu 金静芷 唐养吾 | 1998 | 国外测井技术1998，13，2： | 0 |
| 3 | Erratum to:Carbonatites and Alkaline Igneous Rocks in Post-Collisional Settings:Storehouses of Rare Earth Elements显示文摘This article was orignally published ectronically on the publisher's internet portal on 23 August 2021.With the author(s)'deeision,the copyright of the article changed on 27 of January 2022 to◎Brtish Geological Survey,UKRI 2022 and the article is forthwith distributed under a Creative Commons Attribution 4.0 International License,which permits use,sharing,adaptation,distri-bution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons lcece,and indicate if changes were made. | Kathryn M.Goodenough Eimear A.Deady Charles D.Beard Sam Broom-Fendley Holly A.L.Eliott Frederick van den Berg Husey in Oztirk | 2022 | Journal of Earth Science2022，33，4： | 0 |
| 4 | 冬季逆温与哮喘急诊就诊显示文摘[背景]冬季逆温:温度随着海拔而升高的空气层,会吸引污染物,导致污染物浓度增加。以前的研究已经评估了污染物和哮喘急诊科(ED)就诊之间的相关性,但从未将逆温作为哮喘ED就诊的独立危险因素进行研究。[目的]探讨犹他州盐湖城冬季逆温与哮喘ED就诊的相关性。[方法]收集犹他州盐湖城2003—2004年至2007—2008年冬季因哮喘ED就诊的电子记录以及逆温、气象和空气污染的数据。确定3425名初诊为哮喘的ED哮喘病例,采用时间分层病例交叉设计和条件logistic回归模型计算优势比(ORs)及其95%可信区间(CIs),估计在4d滞后期及长期逆温中哮喘ED就诊率与逆温的相关性;并评估逆温、气象、污染物三者之间的交互作用。[结果]校正露点和平均气温后,与没有逆温的滞后期相比,逆温之前0~3d的哮喘就诊率OR值为1.14(95%CI:1.00~1.30);滞后期逆温天数每增加1d,OR值为1.03(95%CI:1.00~1.07)。只有当PM10、最大值和平均气温高于中位数水平时,才显示出相关性。[结论]冬季逆温与哮喘ED就诊率增加相关。 | John D.Beard Celeste Beck Randall Graham Steven C.Packham Monica Traphagan Rebecca T.Giles John G.Morgan | 2013 | 环境与职业医学2013，30，1： | 0 |
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