共查询到20条相似文献,搜索用时 62 毫秒
1.
山东是我国非金属矿较多的省份,发育着多种非属周矿产.这些非金属矿产均产在一定的含矿建造中,而这些非金属矿含矿建造的形成和分布是存在着明显规律性的.第一,在鲁西地体、胶北地体和胶南地体的每个地体构造单元中.发育着各具特点的非金属矿含矿建造和非金属矿产,每一个地体均具有独特的非全属矿成矿专属性;第二,在山东地壳演化的陆核形成阶段、陆块发展阶段、陆缘发展阶段和滨太平洋发展阶段的每一个地质历史发展阶段中,形成了不同的非金属矿含矿建造,控制了山东各类非金属矿产的形成和时空分布,其为山东非金属矿产的四个大的成矿期。依据非金周矿合矿建造划分原则,据目前已有资料,在山东省内共划分出35种非金周矿含矿建造。 相似文献
2.
3.
《地球科学与环境学报》2016,(3)
鄂尔多斯盆地渭北隆起蕴藏着丰富的煤、油页岩、石油、铀等能源矿产,多种能源矿产共存与构造特征关系、多种能源矿产协同勘探已成为地学界研究的热点课题。在分析总结多种能源矿产时空分布规律及成因联系的基础上,以构造演化特征为主线,重点探讨了构造运动期次、沉积建造、构造单元特征、褶皱构造与多种能源矿产的关系。结果表明:渭北隆起印支期—燕山早期的成盆-差异升降运动形成了本区稳定的深湖—半深湖相含油页岩与不稳定的沼泽相含煤沉积建造组合;燕山中晚期的构造热事件促使油页岩成熟生烃、煤级升高;燕山期—喜山期的断裂、褶皱构造为油气和富铀低温油水热液运移和成藏提供了通道和富集成矿(藏)的场所;喜山期的抬升冷却和南缘断陷作用使得多种能源矿产共存富集得到了最终保存定位,且统一成矿年龄集中在74~122Ma,稍晚于燕山中晚期的构造热事件。综合考虑地质、经济和技术因素,将彬旬凹陷成矿区划分为4个协同勘探区,并建立了合理的勘探模式。 相似文献
4.
《山东国土资源》2001,(6)
山东省地质调查院是根据山东省机构编制办公室《关于组建山东省地质调查院的批复》(鲁编办 [2 0 0 0 ] 3 4号文 ) ,在山东省地质调查研究院的基础上重新组建的 ;是山东省国土资源厅直属事业单位。1 .主要职责任务( 1 )负责申报并承担国家国土资源大调查项目 ;( 2 )承担全省基础性、公益性和战略性地质调查和矿产勘查工作 ;( 3 )负责全省矿产资源成矿区划、预测及调查评价 ,对省拟安排的地质调查和矿产勘查项目进行技术论证 ,为主管部门提供决策依据 ;( 4)承担省重大工程建设前期的地质调查评价工作 ;( 5)开展与地质调查和矿产勘查相关的专题… 相似文献
5.
列表介绍了与区域成矿背景有关的山东省地层和侵入岩谱系序列,在综合研究其与矿产成因联系的基础上,依据地质事件对成矿作用的控制,初步建立了山东省矿床成矿系列50个。按山东省二级大地构造单元(鲁东地区三级构造单元)和成矿系列排序,建立了山东省区域矿床成矿谱系。依据区域矿床成矿谱系所反映的矿床成矿系列时空演化,结合地壳发展阶段初步总结了矿床成矿系列的演化规律。 相似文献
6.
7.
加强矿产区域分布规律研究促进山东非金属矿开发利用艾宪森(山东省地质矿产局)《山东地质》自创刊以来,先后编辑出版了5部专辑。这个专辑-《山东非金属矿含矿建造专辑》是专门讨论山东省非金属矿地质问题的。其旨在介绍山东丰富的非金属矿产资源区域展布概貌,以促进... 相似文献
8.
9.
成矿场是指地质历史时期某成矿地区引起岩石变形的应力场,承载成矿作用引起流体效应的流体场,以及成矿元素迁移、沉淀、富集、叠加改造形成的物质场的总称.分析了一个成矿地区应力场、流体场、物质场的空间关系、研究内容与研究方法.根据成矿背景、控制因素、成矿环境将其分为7类成矿场,即:逆冲(推覆)-后伸展构造背景成矿场、走滑-伸展(伸展-走滑)-后逆冲构造背景成矿场、中酸性火山(次火山)岩浆活动背景成矿场、基性-超基性岩浆活动背景成矿场、盆地裂谷-海底喷流环境成矿场、外生海相建造环境成矿场、外生陆相建造环境成矿场.对前5类成矿场(以内生矿产为主)进行了系统的内涵表述.在此基础上对前5类成矿场的矿产勘查过程中关键地质因素进行了归纳分析,这对具体矿产勘查工作具有现实的指导意义. 相似文献
10.
11.
12.
The ability of cell to modulate the fluidity of plasma membrane was crucial to the survival of microorganism at low temperature. Plasma membrane proteins, fatty acids and carotenoids profiles of Antarctic psychrophilc yeast Rhodotorula sp. NJ298 were investigated at -3 ℃, 0 ℃ and 8 ℃. The results showed that plasma membrane protein content was greater at -3 ℃ than that at 8 ℃, and a unique membrane polypeptide composition with an apparent molecular mass of 94.7 kDa was newly synthesized with SDS-PAGE analysis; GC analysis showed that the main changes of fatty acids were the percentage of unsaturated fatty acids (C18∶ 1 and C18∶ 2) and shorter chain saturated fatty acid (C10∶ 0) increased along with the decrease of the culture temperature from 8 ℃ to -3 ℃; HPLC analysis indicated that astaxanthin was the major functional carotenoids of the plasma membrane, percentage of which increased from 54.6±1.5% at 8 ℃ to 81.9±2.1% at -3 ℃. However the fluidity of plasma membrane which was determined by measuring fluorescence anisotropy was similar at -3 ℃, 0 ℃ and 8 ℃. Hence these changes in plasma membrane's characteristics were involved in the cellular cold-adaptation by which NJ298 could maintain normal plasma membrane fluidity at near-freezing temperature. 相似文献
13.
《极地研究(英文版)》2014,(4)
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose 相似文献
14.
《中国海洋大学学报(英文版)》2014,(4)
<正>Copyright Submfnion of a roanusatpt inks:that the work described has not been published before(exoept In the form of an abstrW or as part of a published lecture,review,or thesis);that it is not under consideration for publication elsewhere that its publication has been approved by ail 相似文献
15.
《中国海洋大学学报(英文版)》2014,(6)
<正>The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fieldcovered include the physical,chemical,biological,geo- 相似文献
16.
Massimo GRECO 《山地科学学报》2014,(6):1383-1384
<正>The 35th IAHR World Congress was held in Chengdu,China from September 8 to September 132013.The title of the conference was:"The Wise Finds Pleasure in Water:Meandering through Water Science and Engineering".During the congress,1239 papers were presented in 139sessions for oral presentations and 7 sessions for poster presentations.After the Congress,a Committee was appointed to select some of the best papers presented at the Congress for publication,after a 相似文献
17.
As an important component of the cryosphere,sea ice is very sensitive to the climate change.The study of the sea ice physics needs accurate sea ice thickness.This paper presents an electromagnetic-induction(EM) technique which can be used to measure the sea ice thickness distribution efficiently,and the successful application in Bothnian Bay.Based on the electromagnetic field theory and the electrical properties of sea ice and seawater,EM technique can detect the distance between the instrument and the ice/water interface accurately,than the sea ice thickness is obtained.Contrastive analysis of the apparent conductivity data obtained by EM and the value of drill-hole at same positions allows a construction of a transformable formula of the apparent conductivity to sea ice thickness.The verification of the sea ice thickness calculated by this formula indicates that EM technique is able to get reliable sea ice thickness with average relative error of only 12%.The statistic of all ice thickness profiles shows that the level ice distribution in Bothnian Bay was 0.4-0.6 m. 相似文献
18.
Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area. 相似文献
19.
Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter. 相似文献
20.
《极地研究(英文版)》2014,(3)
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied 相似文献