伟晶岩绿柱石矿物学及其通道水氢同位素研究进展

自然界绿柱石存在三个类质同象系列,即“八面体”绿柱石（ｃ／ａ＝０．９９１￣０．９９６）,“正常”绿柱石和“四面体”绿柱石。绿柱石矿物精细结构研究表明,二价离子置换八面体中Ａｌ,Ｌｉ置换四面体中Ｂｅ,而碱离子被绿柱石通道所容纳,用于补偿低价阳离子置换Ａｌ八面体和Ｂｅ四面体引起的电价不足。伟晶岩绿柱石通常含有〉１．６ｗｔ％的通道水,而包裹体中流体仅为０．１５ｗｔ％左右。室温下绿柱石通道中存在１型和Ⅱ     

GPS动态测量连续周跳检验

本文针对ＧＰＳ动态测量中经常出现的连续周跳,提出了一种新的连续周跳的检验方法。该方法在理论上是最优的,与Ｋａｌｍａｎ滤波平行操作,能够实行处理周跳引起的偏差;而且,在偏差估计的同时,兼顾后续偏差检验,因而可利用尽可能多的观测历元信息来获取精度较高的偏差估值。实例计算表明,该方法在应用中是很有效的。     

冻土的蠕变及蠕变强度

基于试验，本本讨论分析了冻土三轴蠕变规律及温度和围压对冻土蠕变强度的影响，给出了土蠕变及蠕变强度随时间降低的方程式，进而提出了冻土蠕变强度的物型屈服准则。通过改变参数可将冻土的瞬时强度准则与冻土的瞬时强度准则与冻土的蠕变强度准则统一为同一个方程描述。     

湘中断裂体系分维与锑矿分布

笔者将分形几何学的原理和方法,应用于湘中地区断裂体系的二维平面分布特征研究,发现在研究的标度范围内（ｒ约２～８０ｋｍ）不仅具有统计自相似性,并且同一地区,不同分区具有不同的分维值Ｄ,分维值分布特征为东南区分维值高于西北区分维值,将本区断裂体系的这种分维值分布特征与锑矿床分布特征对比,可发现锑矿床（点）产出较多,矿床规模较大的地区,其分维值较大。     

基于DMSP/OLS稳定夜间灯光数据的中国1995-2008年电力消费量时空动态研究(英文)

Electric power consumption (EPC) is one of the basic indices for evaluating electric power use. Obtaining timely and accurate data on the spatiotemporal dynamics of EPC is crucial for understanding and practical deployment of electric power resources. In this study, an EPC model was developed using stable nighttime lights time-series data from the Defense Meteorological Satellite Program Operational Linescan System (DMSP/OLS). The model was used to reconstruct the spatial patterns of EPC in Chinese Mainland at the county level from 1995 to 2008. In addition, the spatiotemporal dynamics of EPC were analyzed, and the fol-lowing conclusions were drawn. (1) The EPC model reliably represented the spatiotemporal dynamics of EPC in Chinese Mainland with approximately 70% accuracy. (2) The EPC in most regions of Chinese Mainland was at low to moderate levels, with marked temporal and spatial variations; of high-level EPC, 58.26% was concentrated in eastern China. Six urban agglomerations (Beijing-Tianjin-Tangshan region, Shanghai-Nanjing-Hangzhou region, Pearl River Delta, Shandong Peninsula, middle-south of Liaoning Province, and Sichuan Basin) accounted for 10.69% of the total area of Chinese Mainland but consumed 39.23% of the electricity. (3) The EPC of most regions in Chinese Mainland increased from 1995 to 2008, and 64% of the mainland area showed a significant increase in EPC. Moderate increases in EPC were found in 61.62% of eastern China and 80.65% of central China from 1995 to 2008, whereas 75.69% of western China showed no significant increase in EPC. Meanwhile, 77.27%, 89.35%, and 66.72% of the Shanghai-Nanjing-Hangzhou region, Pearl River Delta, and Shandong Peninsula, respectively, showed high-speed increases in EPC. Moderate increases in EPC occurred in 71.12% and 72.13% of the Beijing-Tianjin-Tangshan region and middle-south of Liaoning Province, respectively, while no significant increase occurred in 56.34% of the Sichuan Basin.     

松辽盆地尚家—太平川地区石油地质条件及勘探方向分析

通过对尚家—太平川地区构造演化、烃源岩特征、沉积特征、储盖组合、油水关系及油藏类型和油气成藏特征的分析,研究了本区的石油地质条件,认为烃源岩具有较好的生、排烃能力,分流河道砂体为油气聚集提供较好的沉积环境,良好的储盖组合有利于油气的聚集与保存。研究区没有统一油水界面,尚家地区以岩性—构造油藏为主,太平川地区以构造—岩性油藏为主。区内扶余—杨大城子油层油气成藏受有效性圈闭、优势运移通道、过剩压力、储集条件和构造诱导作用控制。据上述认识确定了研究区下一步的勘探方向,并已在指导勘探实践中取得了较好的效果。     

小秦岭地区金矿成矿机理分析

小秦岭成矿带是我国重要的贵金属成矿带之一,金矿受地层、构造和岩浆岩控制,具有＂三位一体＂的成矿模式。太古宙太华群地层为成矿提供了物质基础,区域变质作用使金发生初次富集;早期自北而南的挤压形成规模巨大的推覆构造为含金石英脉的生成提供了有利空间;燕山期构造—岩浆活动对金的活化、迁移、富集起主导作用     

易门式大型铜矿床构造成矿动力学模型

针对金属矿床隐伏矿定位预测的关键问题,在提出构造成矿动力学的分支学术方向的基础上,以易门式大型铜矿床为例,从成矿地质背景、矿田构造、构造地球化学和成矿构造应力场等方面进行构造成矿动力学研究,阐述在构造应力场控制下成矿流体运移和聚集的规律。构造地球化学研究认为,构造地球化学异常反映矿体的原生晕;构造地球化学异常受构造控制,其分带特征可指示成矿流体的流向,并提供矿床成因和隐伏矿(化)体相对埋深的信息。构造应力场的控矿特征主要表现在:构造应力场导致控矿构造的形成,并驱动成矿流体的运移;构造应力场控制了成矿能量场;应力和能量的高值集中区分布特点可反映某些构造型式。在此基础上建立构造成矿动力学模型,概括隐伏矿成矿预测准则,据此提出若干重点找矿靶区和靶位,其中部分靶区得到工程验证,表明构造成矿动力学方法对隐伏矿定位预测和评价具有重要的指导意义。     

长白山地区遥感生态指数时空变化及其气候响应

利用Google Earth Engine(GEE)云平台,在原有遥感生态指数（RSEI）基础上,选用增强型植被指数（EVI）代替原绿度指标中的NDVI,构建并计算2001—2020年长白山地区植被生长季RSEI,采用回归分析、波动分析、Hurst指数等方法,分析长白山地区RSEI时空变化特征并探讨其气候影响因素。研究表明：（1）2001—2020年长白山地区RSEI波动缓慢上升,生态环境质量整体呈上升趋势。RSEI多年均值空间分布具有明显的分异性,长白山保护开发区生态环境质量较好,通化市、白山市大部较差。（2）近20年长白山地区RSEI稳定性较差,生态环境质量较脆弱。未来生态环境趋势总体向好,但局部地区仍存在持续恶化态势。（3）长白山地区RSEI主要受降水影响较大,与降水呈显著正相关,与气温相关性不强。     

A Survey of Newtonian Core-Shell Systems with Pseudo High Order Symplectic Integrator and Fast Lyapunov Indicator

Newtonian core-shell systems, as limiting cases of relativistic core-shell models under the two conditions of weak field and slow motion, could account for massive circumstellar dust shells and rings around certain types of star remnants. Because this kind of systems have Hamiltonians that can be split into a main part and a small perturbing part, a good choice of the numerical tool is the pseudo 8th order symplectic integrator of Laskar ＆ Robutel, and, to match the symplectic calculations, a good choice of chaos indicator is the fast Lyapunov indicator （FLI） with two nearby trajectories proposed by Wu, Huang ＆ Zhang. Numerical results show that the FLI is very powerful when describing not only the transition from regular motion to chaos but also the global structure of the phase space of the system.