Spatial Association of Mineral Occurrences and Curvilinear Geological Features

Qualitative and quantitative knowledge about the spatial association between mineral occurrences and geological features are important in mineral potential mapping. Two existing methods for quantifying spatial association between mineral occurrences and curvilinear geological features are applied to the Baguio district of the Philippines. An experimental method is described and applied to the study area as well. The results of the three methods are highly similar, which demonstrates the effectiveness of the experimental method presented here for quantifying spatial association between mineral occurrences and curvilinear geological features. It is shown that gold occurrence in the Baguio district are strongly spatially associated with northeasterly trending faults/fractures rather than with northwesterly trending faults/fractures. It is also shown that the spatial association between the gold occurrence and older batholithic intrusives is stronger than the spatial association between gold occurrence and younger porphyry intrusives. These spatial geoinformation characteristics can be used as evidential data layers in GIS-based mineral potential mapping.     

Primordial geodynamics of Southern Carpathian-Balkan basements (Serbo-Macedonian Mass): Avalonian vs. Cadomian arc segments

This review deals with a highly complex set of dismembered peri-Gondwanan exotic polymetamorphic basement systems accommodated outside of the well-explored European Variscides, extending from the controversial Serbo-Macedonian hinterland up to the East Moesian Alpine foreland. The isotopic and limited detrital zircon ages are coupled with the lithotectonic and palinspastic record in order to restore the earliest peri-Gondwanan developments in modern-day South-east Europe (Carpatho-Balkanides and surrounding areas). The results suggest that these rather bewildering, occasionally underexplored tectonometamorphic suites exhibit Cadomian arc inheritance in a flanking part of this belt, whilst inferior Avalonian are positioned more internally.     

International Association of Geoanalysts'Protocol for the Certification of Geological and Environmental Reference Materials

This protocol has been developed by the International Association of Geoanalysts to demonstrate procedures for the certification of geological and environmental reference materials to comply to the fullest extent possible with recommendations of the International Organisation for Standardisation (ISO Guide 35). A practical approach is described on the assumption that certifications will be normally be based on collaborative analysis programmes in which participating laboratories are preselected on the basis of performance in a proficiency testing programme or on the basis of other criteria of merit.     

西太平洋富钴结壳元素组合特征及其地质意义

海山富钴结壳是一种重要的海底固体矿产。对西太平洋海山的56个结壳样品进行了23种化学组分分析,并利用R型聚类分析和R型因子分析,分别提取四组元素组合和四个主因子。综合特征表明．富钴结壳在形成过程中,经历了一次强度较大的锰矿物相成矿作用,Co、Ni等元素的富集与此有关;铁矿物相的成矿作用强度较小,但表现出多期次的特点;锰、铁矿物是不同成矿作用的产物;结壳形成过程中,可能遭受了二次磷酸盐化作用,结壳中磷酸盐矿物的形成对铁矿物相的形成可能有抑制作用。     

International Association of Geoanalysts' Protocol for the Certification of Geological and Environmental Reference Materials: A Supplement

The International Association of Geoanalysts (IAG) published a protocol for the certification of reference materials in close accord with the International Organisation for Standardisation (ISO) guidelines (Kane et al. 2003). This article supplements that protocol, providing additional discussion of best approaches for pre-selecting laboratories for participation in certification projects. This discussion also makes a distinction between inter-laboratory certifications, where n = 15 is the general standard, and expert laboratory certifications, where a much smaller number of laboratories will be deemed qualified to provide data of the quality needed for certification.     

中国科学技术协会书记处书记束为一行莅临中国地质学会调研座谈

10月28日上午,中国科学技术协会党组成员、书记处书记束为一行莅临中国地质学会开展调研。全国政协常委、中国地质调查局副局长李朋德,中国地质调查局局长特别助理、副总工程师、科技外事部主任、中国地质学会副理事长兼常务副秘书长朱立新陪同调研座谈。李朋德主持座谈会并致辞,表示中国科协一直以来非常重视学术团体发展工作,对中国地质学会的发展给予了大力支持,期待中国地质学会能在中国科协的持续支持与指导下进一步蓬勃发展。朱立新代表学会作了中国地质学会工作专题报告,介绍了学会基本情况,汇报了学会近几年在服务国家重大需求、促进地质科技进步、支撑行业转型升级、助力经济社会发展等方面取得的一系列工作成效,以及学会发展面临的问题与困难。束为书记充分肯定了中国地质学会在地质科学领域做出的贡献,认为中国地质学会作为百年老会,在学术交流、人才培养、科学普及等方面做了许多亮点工作,在国际合作交流等方面为其他学会提供了许多可供借鉴的宝贵经验。中国科协将深入研究并协助解决学会发展中遇到的困难和问题,进一步做好中国科协与学会的沟通与服务工作,促进学会的国际化发展和交流,让学会充分发挥科技交流平台优势,在全球科技治理中发挥更加重要的作用。     

Geological information

The need for rapid storage and retrieval of geologic information is discussed briefly. The writer proposes to encode such information on perforated cards, from which it can be transferred to any other recording device. Hopefully, eventually, there will be an international arrangement where such information can be retrieved rapidly and used effectively anywhere in the world. Three examples are chosen to show how the proposed system works: A stratigraphic section, igneous phenomena, and tectonic deformations. These are set up in three tables representing the perforated cards and the proposed items are discussed in some detail. – E. Ingerson.     

Geological Panorama Database:Digitizing and Visualizingthe Geological Outcrops

正1 Introduction Geological outcrops or sections are the basis of geological research.However,the traditional methods for presenting them are mainly photos which fall short of delivering a true visual sense (Deng et al.,2009;Hou et al.,2014).With the continuous development of image acquisition technology using single-lens reflex camera (SLR camera),image synthesis,large file storage and acquisition,panoramic visualization and network technology,high-resolution panorama as a means to display     

试论地质勘查单位档案工作规范化管理

地勘单位的档案资源是地质工作历史的最真实的记录和珍贵的历史资料。它客观地反映了各个历史时期地质工作状况。本文主要论述了地勘单位档案规范化管理的重要性和必要性,探讨了档案规范化管理的组织建设和制度建设,对地质档案的开发和利用提供了可行的措施。     

煤田地质勘探中的一些工程地质工作

煤田地质勘探工作,过去多侧重于煤炭资源的勘探,对与矿井（含露天矿,以下同）设计、施工、生产有较大关系的工程地质工作有时重视不足,如精查报告中,对第四纪地质的章节阐述就极为简单,对勘探区域内（尤其是工业广场、工人村等建筑范围）的物理地质现象、地形地貌、岩土的物理力学性质和工程地质条件等所做的工作就更显不够,以致不能较好的指导设计、施工与生产。因此,在煤田地质勘探中做好工程地质工作,是当前一项紧迫的任务。     

中国地质学会荣获中国科学技术协会2022年度全国学会科普工作优秀单位

近日,中国科学技术协会科普部公布了《2022年度全国学会科普工作优秀单位名单的通知》（科协普函综字〔2022〕50号）,经评审,中国地质学会被评为“2022年度全国学会科普工作优秀单位”。     

论城市地质调查中土体工程地质单元划分依据:以武汉市都市发展区为例

第四纪地质是工程地质的基础,第四纪沉积物的地层时代、岩性组合等是土体工程地质单元划分的重要依据.通过武汉市地貌、第四纪地质特征（地层、成因、岩性等）及土体工程地质性质等综合调查和分析,提出基于"地层时代+岩性组合（岩石地层单位）+岩性层"的武汉市工程地质单元体划分原则.根据城市建设的需要,将武汉市都市发展区土体工程地质单元体分为3级:单元层（1）、亚单元层（1-1）、基本单元层（1-1-1）,其划分的控制因素依次为:地层时代、岩性组合（岩石地层单位）、岩性层.据此划分出工程地质单元层6个、亚单元层14个、基本单元层28个.并对各个工程地质单元体的特征进行了分析.      

Geological solar compasses

Geological solar compasses. The magnetic properties of some rocks (notably basalts and peridotites) may cause large and unpredictable aberrations of the usual geological compass. Complications are then avoided by using a watch and a solar compass, of which two types for geological use have been developed. The horizontal solar compass has the virtues of simplicity and universality; its reading, however, does not give immediately the desired azimuth. Reduction graphs are easily calculated, but valid only for a specific time of year and geographical latitude. The equatorial solar compass can be read directly. Its use, restricted to the middle and high latitudes, is as convenient as of an ordinary geologist's compass.