山东临朐一带古近——新近纪地层的划分

根据昌乐、临朐一带古近-新近纪地层重点勘查成果及发现的孢粉、微体及腹足类化石等资料,认为昌乐五图组中的煤及油页岩地层年代为古近纪中始新世;临朐牛山七贤店山沟中出露的一套粘土岩、泥岩夹含油泥岩,可与五图组上煤段对比,其地层年代为中始新世晚期;临朐山旺村山沟中出露的一套粘土岩夹硅藻岩等,前人认为地层年代为中新世山旺组．本次勘查获得的孢粉谱对其提供了佐证;柳山坪南头村山顶上出露一套厚层花岗质含砾粗砂岩（底部夹泥煤一层）,平覆在花岗片麻岩山顶,依孢粉谱与山旺组对比,其地层年代要晚于山旺组,可与尧山花岗片麻岩山顶的尧山组相比。地层年代属于上新世尧山组。     

山东省损毁山体景观影响度分析

损毁山体严重影响城市和交通沿线景观,景观影响度可作为一个综合指标来反映损毁山体对城市景观的影响程度。应用专家评分综合评判法结合地理信息系统确定景观影响度分级标准,对损毁山体进行景观影响程度的评价与分析,得出景观影响度分类结果,为损毁山体的治理规划和有序整治提供科学依据。     

利津县黄河湿地生态治理浅析

刁口乡自然保护区位于利津县东北部,丰富的湿地植被和水生生物资源已成为当地生态旅游的重要场所和经济来源,但由于区内自然资源开发,特别是石油、天然气的勘探开采,石油外溢引起的大面积水土污染,导致自然生态系统破坏。根据当地地质环境和湿地生态系统特点,制定了工程措施和生物措施的湿地治理设计方案,使黄河湿地生态系统得到恢复,带动当地海洋经济板块发展和产业结构调整。     

东营市矿产资源开发利用现状与保护措施

以东营市矿产资源总体规划为指导,进行矿产资源开发利用与保护措施研究,在开发利用现状的基础上分析当前存在的矿产资源后备基地紧缺、综合利用水平不高以及过度开采等问题,进而提出促进矿产资源开发利用与保护的措施,以便更好地为东营市经济建设和社会发展服务。     

东营市中心城区地热田地热回灌可行性分析

利用东营市中心城区鲁班公寓的地热生产井,对新近纪馆陶组和古近纪东营组热储层进行了自然压力条件下的异层和同层回灌试验。结果表明,回灌量与水头升高呈正相关关系,单位回灌量与水头升高呈负相关关系,馆陶组东热2井回灌能力为东营组东热。井的3倍左右。通过对该地热田热储地质条件、回灌能力及地热水开采潜力的分析,认为目前条件下东营城区还不适宜全面推行地热回灌。     

2021年3月中旬东亚中部沙尘天气地面起尘量及源区贡献率估算

2021年3月中旬,东亚中部包括中国北方大部分地区,爆发了持续性的沙尘天气,引发了人们对于沙尘源区、防风固沙生态建设工程效益的高度关注.提出了一个新的地表起尘量估算方法,使用高精度、大范围的气象数据,计算了这次沙尘天气的地面起沙条件、大风过程中的输沙状况,估算了不同时刻的起尘量,获得了14、15日蒙古和中国北方荒漠地区...     

浅谈山东省防震减灾重点项目档案的管理

山东省防震减灾“十一五”规划项目建设期间,山东省地震局加强对重点项目建设档案的管理工作,保证档案的完整、准确和安全,使项目顺利通过验收,为项目建设后的运行维护留下了完整翔实的宝贵资料。文章对强化全员档案管理意识,建立健全档案管理机构和制度,规范档案工作流程及注重验收时档案的质量等方面进行介绍,进一步阐明如何加强重点项目的档案管理工作。     

山东诸城农居抗震性能分析对比

通过对山东诸城民居现状进行调查,发现其抗震性能较差。对山东农村民居在抗震设防中存在的突出问题进行了分析并提出了应对方案。     

Source parameters of small and moderate earthquakes in the area of the 2009 L’Aquila earthquake sequence (central Italy)

The main goal of this study is to provide moment tensor solutions for small and moderate earthquakes of the 2009 L’Aquila seismic sequence (central Italy). The analysis was performed by using data coming from the permanent Italian seismic network run by the Istituto Nazionale di Geofisica e Vulcanologia (INGV) and the “Cut And Paste” (CAP) method based on broadband waveform inversion. Focal mechanisms, source depths and moment magnitudes are determined through a grid search technique. By allowing time shifts between synthetics and observed data the CAP method reduces dependence of the solution on the assumed velocity model and on earthquake location. We computed seismic moment tensors for 312 earthquakes having local magnitude in the range between 2.7 and 5.9. The CAP method has made possible to considerably expand the database of focal mechanisms from waveform analysis in the lowest magnitude range (i.e. in the neighborhood of magnitude 3) without overlooking the reliability of results. The obtained focal mechanisms generally show NW–SE striking focal planes in agreement with mapped faults in the region. Comparisons with the already published solutions and with seismological and geological information available allowed us to proper interpret the moment tensor solutions in the frame of the seismic sequence evolution and also to furnish additional information about less energetic seismic phases. Focal data were inverted to obtain the seismogenic stress in the study area. Results are compatible with the major tectonic domain. We also obtained a relation between moment and local magnitude suitable for the area and for the available magnitude range.     

Cercis siliquastrum Tree Leaves as an Efficient Adsorbent for Removal of Ag(I): Response Surface Optimization and Characterization of Biosorption

The Cercis siliquastrum tree leaves are introduced as a low cost biosorbent for removal of Ag(I) from aqueous solution in a batch system. FT‐IR, XRD analysis, and potentiometric titration illustrate that the adsorption took place and the acidic functional group (carboxyl) of the sorbent was involved in the biosorption process. In addition, it was observed that the pH beyond pH_pzc 4.4 is favorable for the removal procedure. The effect of operating variables such as initial pH, temperature, initial metal ion concentration, and sorbent mass on the Ag(I) biosorption was analyzed using response surface methodology (RSM). The proposed quadratic model resulting from the central composite design approach (CCD) fitted very well to the experimental data. The optimum condition obtained with RSM was an initial concentration of Ag(I) of 85 mg L^?1, pH = 6.3 and sorbent mass 0.19 g. The applicability of different kinetic and isotherm models for current biosorption process was evaluated. The isotherm, kinetic, and thermodynamic studies showed the details of sorbate‐sorbent behavior. The competitive effect of alkaline and alkaline earth metal ions during the loading of Ag(I) was also considered.