山东省中生代地层划分与对比

对山东省中生代地层的研究表明：沂沐断裂带以西的鲁西南、鲁中、鲁北地区侏罗纪、白垩纪地层发育较全，而断裂带以东的钱是东地区仅发育白垩纪地层；断裂带两侧中生代地层的化石组合、火山岩特点等都相差很大。本文将沂沭断裂带以西的坊子组归于下－中侏罗纪，三台组归于中侏罗统，分水岭组暂归于上侏罗统、西洼组归于下白垩统；而将沂沐断裂带以东的莱阳组、青山组归于下白垩统。王氏组归于上白垩统。笔者废除使用蒙阴群(组)和汶南(亚)组，并建设将鲁北地区目前使用的“王氏组” 废除，另建新名。     

铜石金矿田地球化学找矿模型

从基岩地球化学及水系沉积物地球化学的角度研究了铜石金矿田金的异常特征。运用对应聚类、因子分析和马氏距离等多元统计分析方法进一步研究了金组合元素异常特征，建立了归来庄金矿环、线叠加地球化学异常找矿模型。     

山东省东平—汶上铁矿带铁矿床地球化学特征分析

东平—汶上铁矿带是鲁西重要的鞍山式铁矿带,矿床赋存于新太古界泰山群山草峪组变质岩中,目前已经探明10余处大、中型铁矿床。铁矿体一般呈层状、似层状,长一般800m,厚度6m;矿石主要为磁铁石英岩,发育条带状构造。文章阐述了通过采集典型矿床矿石及围岩样品,测试其常量元素、稀土元素、微量元素,结果显示磁铁石英岩总体表现为高硅,低磷、低铝;矿石和围岩的稀土元素含量都较低(w(ΣREE)=23.74×10~(-6)~141.22×10~(-6)),相对富集轻稀土,亏损重稀土(w(LREE)/w(HREE)=4.10~5.42),Eu负异常(δEu=0.61~0.96,平均0.86),Ce不显异常(δCe=0.93~1.05,平均0.94);富集大离子亲石元素K、Rb、Ba、Th,高场强元素Ta、Nb、Zr、Hf、Ti等相对亏损。研究结果表明,东平—汶上铁矿成矿带的赋矿原岩形成于大陆边缘和火山岛弧构造环境;山草峪组变质岩原岩可能经历了多个完整的火山-沉积旋回,火山活动提供了成矿物质铁和硅;成矿期海水为缺氧的弱还原环境。     

山东蓬莱新生代玄武岩的构造背景及宝石找矿前景

山东蓬莱位于胶东地体北缘中部。板块动力作用形成了前古生代近EW向构造和中生代NE—NNE向走滑断层,侏罗纪以来地幔柱构造作用逐渐加强,地壳伸展减薄,幔源物质上涌,导致新生代碱性玄武岩喷发。碱性玄武岩中普通辉石、镁铝榴石等可作为低档宝石原料。玄武岩的构造背景、喷发形式、火山机构、岩性特征等与昌乐赋蓝宝石的碧玄岩极为相似,经过有针对性的详细调查研究,寻找红、蓝宝石是有希望的。     

济东煤田埠村煤矿瓦斯涌出量研究

煤矿瓦斯不仅关系到能否起到利用价值,同时也关系到众多矿工的安全问题,鲁中地区是山东重要的煤炭资源基地,埠村煤矿作为其中重要的一部分,其瓦斯研究价值不言而喻。运用沉积学、构造地质学、煤地质学,数学分析等相关学科和方法,从影响瓦斯涌出量的地质构造、顶底板岩性、岩浆岩、水文地质条件、上覆基岩厚度等地质因素进行综合分析,对埠村煤矿瓦斯涌出量进行量化预测,并作出其全井田瓦斯涌出量的等值线图。研究表明,埠村井田属低瓦斯矿井,瓦斯涌出量存在东高西低的趋势,主要受埠村向斜的控制,矿井瓦斯涌出量的预测分析可以对以后生产防治作出指导作用。     

电磁波手段中强震前短临异常特征研究

本文通过对电磁波台站观测观测资料的研究,分析了山东地区各台站对于中强震的映震能力,同时,讨论了中强震前电磁波的短临异常特征。     

Sediment dynamic processes of the Yuehu inlet system, Shandong Peninsula, China

In order to investigate the sediment dynamic behavior of the Yuehu, a small inlet system characterized by abundant sediment supply and rapid sediment infilling, measurements and sampling were undertaken to obtain data sets of tidal water levels, current velocities, suspended sediment concentrations, grain size parameters, deposition rates and organic carbon contents. Sediment budget and the time–velocity asymmetry patterns of the inlet system were analyzed. The results show that the deposition rates are relatively high within the tidal basin. The total sediment flux cannot be balanced by the input from the open sea, the aerosol and biological production; rather, the material from land (which has been intensified by agricultural activities over the past several decades) represents a major component for the balance. Thus, the denudation rate must be reduced to protect the Yuehu as a natural reserve. Furthermore, it is found from the present study that the Yuehu inlet system exhibits all of the four time–velocity asymmetry patterns with varied frequencies of occurrence, compared with the two asymmetry patterns identified for larger inlet systems; such phenomena are partly due to the adjustment of entrance channel geometry. This behavior may be representative of the small tidal inlets at their late stage of morphological evolution and, therefore, may be utilized to prolong the lifespan of small inlet systems.     

鲁西铜石地区金矿成矿综合信息预测

鲁西铜石地区是上世纪末期新发现的金矿聚集区。文章在已有找矿模型的基础上,对预测模型的三大类找矿信息进行量化及运算;采用了不同权重求和方案,根据经验分别赋予地质信息、地球物理信息和地球化学信息的权重系数,使这三大类信息图层成为带权重累加的综合信息图层,并分别圈定一、二、三级预测找矿靶区,其中圈定一级靶区4个。对靶区进行的野外检查发现,一级预测区矿化蚀变较强,三级预测区相对较弱,并且在一级预测区发现金矿点一处。     

ANALYSIS OF TYPHOON MATSA （NO.0509） AFFECTING SHANDONG PROVINCE

The characteristics of the moving course of Typhoon Matsa (No.0509), associated heavy rain and physical quantities fields have been analyzed, with the focus on the reason of the typhoon’s abrupt northeastward turn in Anhui Province and heavy rain concentrating in the northeast of typhoon center instead of near it. Meaningful conclusions are as follows. The reasons for typhoon abrupt turning are that the subtropical high pressure was moving southward and divergence fields of 200 hPa were to the right of the typhoon center; there was no obvious cold air invading Shandong after the typhoon entered the westerly belt; the southeasterly jet of typhoon and shear brought heavy rainfall to the Shandong peninsula before the typhoon entered Shandong. But after the typhoon’s movement into Shandong, the typhoon’s inverted trough brought the rainfall to the northern and central Shandong.