743离子交换快速分离—等离子体光谱法同时测定十五个稀土元素

本文研制了适用于地质样品中15个稀土元素分析的快速方法。样品经碱熔沉淀分离和743阳离子交换树脂分离富集将稀土元素制备成溶液用等离子体光谱法(ICP-AES)进行测量。方法检出限为0.002-0.3μg/g,当稀土元素含量为0.5-80,μg/g时,方法相对标准偏差为15％-2％。本方法经过多年的样品分析考验以及不断的改进和完善,证明方法简便快速,分析数据稳定可靠,能很好地满足地质样品中15个稀土分量测定的要求。     

马边地震带发震构造背景的初步研究

北北西向的马边－盐津隐伏深断裂是马边地震带形成的主要条件，尤其被东西向甘洛－沐川深断裂和盐津－叙永深断裂转限的段落是强震多发段。地壳表层有北北西向马边－盐津断裂组和地面微隆起带，但地表断裂与陷伏深断裂并不连通，且地表断裂走向与结构复杂多变，这是造成马边地震带强震地面破坏效应及地震影响场特点的基本原因。     

矿震及其前兆初探

本文通过对山东霜矿的矿震（冲击地压）发生条件、时空分布与某些征兆的调查研究，提出了利用矿震及其前兆观测探索天然地震前兆与预报方法的初步设想。     

塘古坳陷构造—沉积演化及其油气勘探方向

塔里木盆地塘古坳陷历经20余年勘探而成效甚微,在新的地震与钻井资料基础上,通过地层沉积对比、构造解析重新认识塘古坳陷的形成与演化,及其对勘探方向的指示研究,结果表明：1）塘古地区存在基底古隆起,寒武系自塔中向南逐渐减薄;2）本区钻揭中-下奥陶统碳酸盐岩地层连续,不存在寒武系—中奥陶统的台槽;3）上奥陶统良里塔格组沉积期在东西两侧发育巨厚的台地边缘相带,而坳陷区相变为盆地泥岩相;4）北东向冲断构造具有分层变形特点,断裂活动始于晚奥陶世早期,冲断推覆作用主要形成于奥陶纪末。结果揭示塘古坳陷经历4期构造关键演化期：1）寒武—中奥陶世与塔中连为一体的碳酸盐岩台地发育期;2）上奥陶统良里塔格组沉积期受控东南板缘俯冲与碰撞作用的台盆形成期;3）奥陶纪末强烈沉降的挤压挠曲盆地定型期;4）志留纪—泥盆纪的构造改造期。该结果为盆地构造古地理研究与深层油气评价提供了基础,并提出了勘探新方向。     

Features of the Early Palaeozoic Mantle beneath Langao County and Its Formation Mechanism

Phlogopite-amphibole pyroxenite xenoliths contained in an Early Palaeozoic alkali subvolcanic lam-prophyre complex in Langao County, Shaanxi Province, are metasomatized mantle xenoliths, composed mainly of clinopyroxene, amphibole, phlogopite, apatite, pervoskite, ilmenite and sphene with well-developed subsolidus metamorphism-deformation textures, such as "triple points" and "cataclastic boundaries" . Minerological studies indicate that clinopyroxene is rich in SiO2 and MgO and poor in TiO2 and Al2O3, which is notably different from magmatogenic deep-seated megacrysts and phenocrysts formed in the range of mantle pressure. Amphibole and phlogopite have the compositional feature of mantle-derived amphibole and phlogopite. Sm-Nd isotope studies suggest that the metasomatized mantle beneath Langao County is the product of metasomatism of primitive mantle by melt (fluid) derived from the mantle plume, and the mantle metasomatism occurred 650 Ma ago. The process of mantle metasomatism changed from mantle me     

太阳射电望远镜远程控制系统

本文简要介绍了云南天文台１０ 米口径的太阳射电望远镜天线的远程控制系统中局域网控制和通过电话线控制的实现方案     

硅基毫米波收发前端集成电路研究进展

随着第五代移动通信技术（5G）逐步向毫米波频段（FR2）部署，以及目前无人驾驶技术对毫米波雷达技术的需求，高性能的毫米波收发前端集成电路成为了目前研究的热点.与此同时，硅基器件工艺的快速发展，极大地提高了晶体管的截止频率，为低成本、高性能的硅基毫米波集成电路设计提供了基础.本文对近年来的毫米波通信和雷达的硅基收发前端集成电路的研究现状和发展趋势进行了综述.     

青藏高原物质东流的岩石层力学背景探讨

利用地表大地热流观测资料、岩石生热率及热导率数据研究了三江和四川盆地 6个地区的岩石层平均温度结构及强度分布。结果表明 ,整个三江地区岩石层温度较高 ,而四川盆地温度较低 ;在岩石层强度分布上 ,四川盆地为高强度区 ,而三江地区则为低强度区 ;整个三江地区构成了一条青藏高原物质东流的低强度通道 ;由于四川盆地高强度块体的阻挡 ,青藏高原向东的物质流在此转向近南向 ,沿三江地区流逸 ;不同岩石层块体的强度差异可能是控制高原物质流动态势的重要力学背景之一。     

PROGRAM FOR PROCESSING OF HISTORICAL LABORATORY DATA BASED ON FUZZY SET THEORY AS A TOOL FOR DECISION SUPPORT

A computer program(FEA)is presented for processing historical laboratory data.It performs on a list ofsample entries stored in a laboratory information management system.Using an algorithm which is basedon fuzzy set theory,FEA classifies the entries into a limited number of clusters called sample types.Theclassification is fully user-defined.The program transforms the historical data into a representation whichis more suitable for studying the performance of the laboratory or which can be used as preparation for asimulation project.     

Fluid venting from a mud volcano in the Mediterranean Ridge Diapiric Belt

Direct observation of active emission of fluids and mud from a submarine mud volcano were made for the first time in an extensive field of mud diapirs and mud volcanoes on the Mediterranean Ridge using a video camera towed 2 m above the seafloor in 1800 m of water. This recent research using both long range and deep-towed sidescan sonar systems indicates also that diapirism and eruption of mud along the crest of the ridge is more common than previously thought. The southwards increase in age of rock fragments carried within the erupted mud supports the hypothesis that the fluid mud becomes overpressured within a southward-dipping backthrust from the Inner Deformation Front of this accretionary prism.