断陷湖盆碳酸盐与陆源碎屑混合沉积——以东营凹陷金家地区古近系沙河街组第四段上亚段为例

混合沉积是一种特殊的沉积类型,研究程度较低。金家地区处于东营凹陷的斜坡带,该区古近系沙河街组第四段上亚段发育了碳酸盐与陆源碎屑的混合沉积,研究认为该混合沉积为古湖泊内的混合沉积,可划分为混积砂滩亚相、混积砂坝亚相及半深湖混积亚相,混合沉积物既包括同层混合沉积物（灰质砂岩、砂质灰岩、泥质灰岩等）,又包括互层混合沉积物（砂岩与颗粒灰岩互层沉积等）,研究区的混合沉积受当时构造运动、碎屑物质供给量、湖平面的变化等诸多因素控制。     

湖南通道"百里侗文化旅游长廊"开发研究

侗文化是中华民族文化中的一块瑰宝,通道侗族自治县是中国侗文化的典型代表。通道县侗族民居、侗族建筑、侗族民风民俗种类丰富,特色鲜明,保存完整,为通道县发展旅游经济提供了重要的资源基础。文中客观分析了湖南通道"百里侗文化旅游长廊"开发的竞争优势和不利条件,从空间结构、开发定位、开发方向、开发重点、区域合作、侗文化保护等方面,提出了湖南通道"百里侗文化旅游长廊"开发思路。     

山东省地下水超采漏斗发展演变分析

地下水超采漏斗是山东省平原区最为突出的环境问题.根据多年来地下水动态监测资料,简要分析了山东省平原区浅层地下水超采漏斗的发展过程、发展演变特征及发展原因,旨在为山东省地下水合理开发、有效保护、科学管理及有效控制地下水超采提供依据.     

饶阳凹陷古近系层序发育的控制因素分析

在分析饶阳凹陷古近系层序类型和发育模式的基础上，根据层序的结构特点，对每种层序发育的控制因素进行了分析。认为在沉积物供应速率变化不大的情况下，盆地基底的的沉降速率和沉降高峰期的时间决定着裂谷期层序的结构、各体系域开始发育和结束的时期。沉积物供应速率和可容空间变化的速率的比值决定着准层序组的类型，局部高速率的沉积物供应回在湖侵期发育进积式准层序组。气候的变化也是层序发育的控制因素，在干旱期，湖平面变化和层序的结构主要受气候控制。     

高力罕凹陷地浸砂岩型铀成矿条件浅析及远景预测

高力罕凹陷为二连盆地乌尼特坳陷的一个组成部分,由有相似构造发育史的分散小湖盆(洼槽)集合而成的沉积盆地。结构复杂,表现出分割性强,多洼槽多沉积中心,岩相变化大的特点。通过对高力罕凹陷的构造特征、结构特征、沉积特征、岩性发育特征及铀成矿条件的分析,认为高力罕凹陷具有良好的铀矿找矿前景。提出该地区的找矿方向,具有一定的参考意义。     

中国沿海省区中心城市服务业水平及发展规律分析

将中国沿海省区17个中心城市服务业水平分为全面发展型、发达型、次发达型和欠发达型。通过服务业以及服务业与城市之间的关系分析得出：发达型、次发达型服务业的人均服务产品占有量与增加值比重以及就业比重均呈正相关关系,且相关性随着服务业绝对水平的提高而增强;欠发达型服务业的人均服务产品占有量与增加值比重以及就业比重均呈负相关的关系;任何水平类型的服务业的增加值比重与就业比重之间都为正相关。服务业绝对水平与城市人均GDP、城市综合竞争力、城市规模之间都呈正相关;比重规模与城市经济水平之间无明显相关性。     

土地节约与集约利用评价研究——以湖南省为例

土地节约与集约利用是发展循环经济和建设节约型社会的必然要求。首先明确提出土地节约和集约利用评价方法与指标选取原则，完善节约和集约用地的评价指标结构层，特别是农用地和农村宅基地等土地利用类型的评价指标，建立区域和土地利用分区的节约与集约利用土地评价指标体系，以湖南省为例，运用层次分析法，得出湖南省土地节约与集约利用水平的动态变化发展趋势以及农用地集约利用的效益，最后利用加权求和的综合方法，计算出湖南省农用地集约利用水平的综合评价值。     

Subsidence history and forming mechanism of anomalous tectonic subsidence in the Bozhong depression, Bohaiwan basin

The Bozhong depression of the Bohaiwan basin belongs to a family of extensional basins in East China, but is quite different from other parts of the basin. The Cenozoic subsidence of the depression is controlled by a combination of lithospheric thinning and polycyclic strike-slip movements. Three episodic rifts have been identified, i.e. Paleocence-early Eocene, middle-late Eocene and Oligocene age. The depression underwent syn-rift and post-rift stages, but two episodic dextral movement events of the strike-slip faults modify the subsidence of the Bozhong depression since the Oligocene. The early dextral movement of the Tan-Lu fault associated with crustal extension resulted in accelerated subsidence during the time of deposition of the Dongying Formation with a maximum thickness of 4000 m. A late reactivation of dextral movement of the Tan-Lu fault began in late Miocene (about 12 Ma), which resulted in the intense subsidence of Minghuazhen Formation and Quaternary. In addition, dynamic mantle convection-driven topography also accelerated the post-rift anomalous subsidence since the Miocene (24.6 Ma). Our results indicate that the primary control on rapid subsidence both during the rift and post-rift stages in the Bozhong depression originates from a combination of multiple episodic crustal extension and polycyclic dextral movements of strike-slip faults, and dynamic topography.     

Groundwater-level Anomalies Associated with a Hypothetical Preslip Prior to the Anticipated Tokai Earthquake: Detectability Using the Groundwater Observation Network of the Geological Survey of Japan,AIST

We infer the groundwater-level anomalies associated with a hypothetical preslip prior to the anticipated M 8 Tokai earthquake, and evaluate the detectability of the anomalies using data from seven groundwater wells. We evaluate the detectability of the anomalies under the following assumptions: (1) an Mw 5.5–6.5 aseismic preslip event occurs at the plate boundary in and around the hypothetical focal zone of the Tokai earthquake; (2) the total amount of the strain step at each observation associated with the preslip can be calculated by tensile and shear faulting based on the dislocation model; (3) a normalized strain history associated with the preslip is defined from the results of numerical simulations based on rate- and state-dependent friction laws; and (4) the groundwater-level anomaly prior to the earthquake is proportional to the estimated history of the strain change associated with the preslip. We investigate the detection time of the anomaly at seven wells given an Mw 5.5, 6.0, or 6.5 aseismic preslip at one of the 272 grid points in and around the area of the hypothetical focal zone of the Tokai earthquake. As a result, over the time interval between 1 and 48 hours prior to the hypothetical Tokai earthquake, we are able to detect at each of the seven wells a hypothetical Mw 6.5 preslip at 10–86 of the 272 grid points, an Mw 6 preslip at 0–19 grid points, and an Mw 5.5 preslip at 0–5 grid points.