机载InSAR测绘系统飞行试验报告

干涉合成孔径雷达测量技术是近年来发展起来的一种新技术。机载InSAR测绘系统在国内还处在研制阶段。其测绘能力以及测图精度以前只能从外文资料中了解。为了获取机载InShR测绘系统第一手资料。我们在河北某地进行了机载InsAR测绘飞行试验，并对InSAR数据进行了处理，对其测绘能力以及测图精度进行了分析，给出了试验结论。     

Mantle／Crust Evolution and Eco-Environmental Effects as Exemplified by Zhangjiakou-West Beijing Region

The living circumstances of human beings are closely related to the geological environment. As exemplified by the Zhangjiakou-West Beijing region, this paper describes the intensive mantle-crust uplift, which led to anomalous element background values for regional rocks(ores) and soils. As a result, some agricultural crops, and forests and fruits are of “superquality and high yield“ or of “poor quality and low yield“. The anomalous elements can find their way into grains, fruits, vegetables and drinking water and then will be taken by human beings, constituting a food chain, which would directly impact human health and lead to the spread of some endemic diseases. Studies have shown that the geomorphological features in the Zhangjiakou-West Beijing region are the outcome of geotectonic evolution since the Mesozoic.Mantle-crust movement is the key factor leading to the evolution and change of the regionally geological environment.     

一些硫化物矿物的晶体形貌学研究

论述了辰砂、雄黄、雌黄、辉锑矿、辉铋矿、毒砂、车轮矿、钽锰矿８种矿物的晶体形貌。文中所提供的全部形态测量结果是按Ｖ．Ｇｏｌｄｓｃｈｍｉｄｔ方法严格测量的新资料。     

Newly recorded bloom-forming dinoflagellate Gymnodinium impudicum in Haizhou Bay,Yellow Sea,China

Journal of Oceanology and Limnology - With the development of industrialization and aquaculture in Jiangsu and Shandong Provinces along the South Yellow Sea coast, China, eutrophication has greatly...     

渤中19-6潜山构造带凝析油中轻烃地球化学特征及意义

为了明确渤海湾盆地渤中19-6大气田的地化特征和成因,选取研究区潜山凝析气藏7个凝析油样品进行全油色谱分析,剖析其轻烃组成特征,探讨轻烃参数在该区的地质应用.结果表明:渤中19-6凝析油的Mango轻烃参数K₁和K₂值相对稳定,表明研究区原油成因类型基本一致.C₆~C₈组成中正构烷烃具显著优势,甲基环己烷指数平均为39%;庚烷值与异庚烷值,正庚烷/甲基环己烷（F）比值较高,反映它们较高成熟度;轻烃参数计算原油生成温度为125.8~128.1 ℃,其相对偏低,可能与取样过程中凝析油的相态变化有关;2-甲基戊烷/3-甲基戊烷,2-甲基己烷/3-甲基己烷比值高,K₂值低;凝析油正构烷烃摩尔浓度呈三段式分布,甲苯/正庚烷和原油蜡含量随深度而增加.结合饱和烃参数以及金刚烷参数揭示渤中19-6潜山油气为湖相腐泥Ⅱ₁型母质在高成熟阶段（Ro=1.05%~1.30%）的产物,气藏形成后发生一定程度分馏造成油气组分调整.      

Tectono-stratigraphic evolution and hydrocarbon exploration in the Eocene Southern Lufeng Depression,Pearl River Mouth Basin,South China Sea

The structural evolution and stratigraphic architecture of the Southern Lufeng Depression in the Pearl River Mouth Basin, South China Sea show two second-order sequences (SSQ1 and SSQ2) and nine third-order sequences (WSQ1-5 and ESQ1-4) within the Eocene rift-related successions. Based on integrated interpretations of seismic reflections, well logs and core data, five distinct tectono-stratigraphic patterns are identified: (1) the initial synrift-I sequence (WSQ1) of low tectonic subsidence, overfilled by alluvial fan or fan-delta deposits and volcanic deposits, with no clear systems tracts; (2) the climax synrift-I sequences (WSQ2–4) developed in response to rapid tectonic subsidence, generally consisting of a low-stand systems tract (LST), transgressive systems tract (TST) and high-stand systems tract (HST); (3) the late synrift-I sequence (WSQ5) characterised by a decreased tectonic subsidence rate, dominated by braided delta, deep and shallow lacustrine sediments, mainly constructed by TST and HST; (4) the early synrift-II sequences (ESQ1–2) rapidly filled by braided deltaic sandstone and mainly composed of TST and HST with less common LST units; and (5) the late synrift-II sequences (ESQ3–4), which are totally filled by braided deltaic system in a shallow-water lake setting, presenting typical imbricate clinoforms or sub-parallel seismic configurations, consisting of only TST and HST components. During the climax stage of synrift-I development, the depositional setting changed from a prominent shallow lake (WSQ2) to a deep-lucustrine with turbiditic deposits (WSQ3) and finally dominated by mostly braided deltaic-shallow lacustrine deposits (WSQ4); the HST occupies an increasing proportion from early to late. Furthermore, the stratigraphic patterns, especially LST units of the climax synrift-I stage, are significantly influenced by topographic variations and slope-break belt types in the hanging dip-slope. This study reveals that the spatial and temporal evolution of lacustrine depositional and stratigraphic patterns were significantly controlled by the interplay of tectonic subsidence and sediment supply, and provides a fundamental basis for predicting the favourable reservoirs and geometry of source rocks related to the general variability of Eocene rift-related tectonic subsidence in the Southern Lufeng Depression of the Pearl River Mouth Basin. Furthermore, the topographic responses of differential active fault-stepped patterns associated with magma intrusions, highlight the variability of relevant sequence architectures in the hanging dip-slope in lacustrine rift basins.     

Petrogenesis of granitoids in the eastern section of the Central Qilian Block: Evidence from geochemistry and zircon U-Pb geochronology

Mineralogy and Petrology - The Caledonian-age Qilian Orogenic Belt at the northern margin of the Greater Tibetan Plateau comprises abundant granitoids that record the histories of the orogenesis....     

Petrogenesis of Luchuba and Wuchaba granitoids in western Qinling: geochronological and geochemical evidence

Mineralogy and Petrology - The West Qinling Orogenic Belt (WQOB) is a major portion of the Qinling-Dabie-Sulu Orogen and holds essential information for understanding the prolonged evolution of the...     

The climate change during early Holocene recorded by trace elements of Shenmu section,Mu Us Desert

Through nine trace elements of the Shenmu section, Mu Us Desert is analyzed for the climate changes during Early Holocene. Except Sr, a migration process of P, Mn, Cr, Rb, Nb, Cu, Zn, and V is found in the dune sands, indicating the accumulation processes of the Asian winter monsoon-driven wind erosion and transport and deposition under the cold climatic phase. And accumulation of these elements in different layers of paleo sol dune sands is related to regional geomorphology and element properties. 8.5 winter-summer monsoon cycles in the early Holocene are observed. The duration time and climate of the stronger winter monsoon phases can be compared with the cold climate in the North Atlantic and other parts of China. The result of Red fit 3.8 power spectra shows 310a, 210a, 90a, and 70a centennial cycles for the element, which are consistent with the solar oscillation cycles. These suggest that the external solar activities of the Earth may have great influences on driving the winter and summer monsoon cycles during early Holocene.     

基于潮位校正的盐城滨海潮间带遥感监测及变化分析

潮间带是重要的滨海湿地类型之一,在生物多样性保护、全球环境变化等方面具有不可估量的价值。遥感技术已经成为滨海湿地监测的重要手段。针对潮间带遥感监测中存在时相限制的瓶颈问题,本文结合卫星过境时潮位信息,通过建立GIS模型,将利用遥感方法提取出的瞬时水边线校正至平均高、低潮线,改进了通过遥感数据恢复潮间带高程和范围的方法。在此基础上,利用1995年、2000年、2005年、2010年和2015年的多期Landsat TM以及OLI遥感数据,对盐城滨海潮间带进行了遥感监测和分析。结果表明:（1）2015年江苏盐城潮间带面积为809.27 km2,相比1995年减小了47%;（2）1995年以来盐城滨海潮间带面积总体呈减小了趋势,其中1995-2000年潮间带面积减小幅度最大,约为205.67 km2;（3）潮间带主要分布在盐城滨海南部晚庄港-新开港,占全部潮间带面积的66%;同时潮间带面积的减小也主要发生在这个区域,减小的潮间带面积占减小总面积的84%;（4）潮间带范围的变化受人为和自然双重因素影响;海平面上升和滨海湿地的大量围垦,造成了潮间带的挤压效应,使得潮间带面积迅速减小,湿地围垦等人为因素起到主导作用。