福建地壳各岩类铜元素丰度及铜的矿源层（岩）讨论

根据福建省最新岩石测量成果得出的各岩类铜元素丰度,讨论和初步确定了福建铜的矿源层（岩）。提出可按照丰度值高低,铜的初始赋存状态与被解离的难易,有无矿床（点）及具找矿意义的异常产出这３项因素,进一步将矿源层（岩）划分为较可靠的、可能的和潜在的３个级别。     

银河系铝元素丰度研究

恒星的Al元素丰度可以为探索星团和星系的化学演化提供重要线索.通过系统分析银河系薄盘、厚盘、核球、银晕以及M4、M5等球状星团中恒星的[Al/Fe]随恒星金属丰度[Fe/H]的变化趋势,得出银河系薄盘、厚盘和核球恒星的[Al/Fe]随着[Fe/H]的增加而缓慢下降,而球状星团M4和M5恒星的[Al/Fe]随[Fe/H]增加没有下降趋势,这暗示Ia超新星对M4和M5恒星元素丰度的贡献比较小.详细研究了银河系恒星[Al/Fe]与[Mg/Fe]、[Na/Fe]的相关性,结果表明银河系场星的[Al/Fe]与[Mg/Fe]正相关,但在球状星团M4和M5恒星中未见此相关性;银河系盘星及M4和M5等球状星团恒星的[Al/Fe]与[Na/Fe]都存在正相关.     

西藏尼玛盆地东部油气显示带的发现及其勘探意义

野外地质调查过程中,在尼玛盆地东部字康勒—康嘎勒一带发现长约55 km的油气显示带,在1：25万尼玛县地质图上标注为白垩系竟柱山组。通过剖面实测及样品地球化学特征分析,采集的24件样品泥页岩有机碳含量较高,平均TOC含量为1.32%,平均生烃潜量为7.38 mg/g,有12件样品TOC大于1%,成熟度也较适中,属好—极好生油岩级别。由此认为,尼玛盆地东部赛布错坳陷生油条件好于达则错坳陷,可作为下一步盆地重点工作区域。油气显示带的发现为尼玛盆地与伦坡拉盆地的地层对比提供了依据,也为盆地下一步的重点工作开辟了新的方向。     

用于海洋沉积物中厌氧氨氧化细菌分子生态学研究的引物比较

为比较厌氧氨氧化细菌16SrRNA基因的2对特异性引物(Amx368F/Amx820R、Brod541F/Amx820R)在其分子生态学研究方面的优点与不足,本研究采用高通量测序和qPCR技术对长江口及其邻近海域沉积物中厌氧氨氧化细菌细菌的群落组成、多样性和丰度进行比较分析,结果表明,引物Amx368F/Amx820R特异性较高,能够较为完整地反映沉积物中厌氧氨氧化细菌的多样性信息,且其覆盖的厌氧氨氧化细菌丰度与功能基因hzo丰度正相关(P<0.01);而引物Brod541F/Amx820R特异性较低,覆盖部分厌氧氨氧化细菌及其他多个门的细菌,其量化的厌氧氨氧化细菌与功能基因hzo丰度无明显相关关系(P>0.05)。因此,引物Amx368F/Amx820R能够更加真实地反映厌氧氨氧化细菌在海洋沉积物中的群落特征,在其分子生态学研究中更具优势。     

Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base,King George Island

Fildes Peninsula, in King George Island, Antarctica, has a great concentration of international facilities, and it has clearly been affected by human activities. The objective of this 5-year study was ...     

Mollusca from a recent coral community in Palliser bay,cook strait

From a trawling at 448–512 m in Palliser Bay, Cook Strait, New Zealand, molluscs associated with. Tertiary siltstone concretions and with a large colony of Goniocorella dumosa (Alcock) are listed. A juvenile Acesta, extremely tall and extremely broad forms of Emarginula striatula Quoy & Gaimard, and the animals of Stilifer neozelanica Dell and of Waipaoa marwicki Dell are described. Sculptifer, a new genus provisionally included in the Fossaridae, is proposed for Stilifer neozelanica. New species of Danilia and Pholadidea are described and their relationships discussed. Emarginula lophelia Beu, 1967 is synonymized with E. striatula Quoy & Gaimard, 1834, and the recent New Zealand forms of Emarginula are reviewed.     

Analysis on the law of occurrence of shallow geothermal energy in Zhoukou City of Henan Province,China

In this paper, through data collection and field investigation, the development and utilization status of shallow geothermal energy in Zhoukou urban area was discussed. Based on the analysis of hydrogeological conditions, rock and soil structure characteristics and field test research, the spatial distribution characteristics of rock and soil in the study area were summarized. The study shows that Zhoukou City is located in the alluvial plain of Huanghuai, and the loose deposits of river alluvial genesis range 0-200 m. These loose deposits and groundwater stored in their pores are the main carriers of shallow geothermal energy. In the central part of the Yinghe River in the middle of the study area, the aquifer thickness is within 200 m, the particle size is coarser, the water-bearing degree and recharge capacity is better. On this basis, the paper uses AHP to evaluate the suitability of shallow geothermal energy development and utilization to guide the rational development and utilization of shallow geothermal energy resources.     

辽宁省中晚元古代—中生代页岩的化学元素丰度及其演化特征

作者利用全省不同地质时代和不同地质构造单元内的页岩41种元素的分析数据,计算出辽宁省全域内的页岩元素丰度休系。同时探讨了元素从中、晚元古代至中生代的演化规律,指出Ca、Cd、Sb、As、Na、Mn、P、Sr的元素丰度随时间序列的演化不断增长,B、F、K、Rb、W、Mg则显示出降低的趋势。某些元素比值从老至新表现出明显的规律性变化,如Sr/Ba、Ca/Mg值的演化具有阶段性,K/Na、Th/U值的演化具有方向性,Al/Ti值的演化则具有周期性。