地质学报
地質學報
지질학보
ACTA GEOLOGICA SINICA
2014年
4期
630-643
,共14页
袁峰%李晓晖%张明明%周涛发%高道明%洪东良%刘晓明%汪启年%朱将波
袁峰%李曉暉%張明明%週濤髮%高道明%洪東良%劉曉明%汪啟年%硃將波
원봉%리효휘%장명명%주도발%고도명%홍동량%류효명%왕계년%주장파
隐伏矿体%三维%成矿预测%空间分析%数据融合
隱伏礦體%三維%成礦預測%空間分析%數據融閤
은복광체%삼유%성광예측%공간분석%수거융합
buried orebody%three dimension%prospectivity modelling%spatial analysis%data integration
开展三维综合信息成矿预测,是当前隐伏矿体找矿勘探的实际需要,但目前尚缺乏系统的研究,工作方法体系仍有待深入探讨。本文提出了一套较为完善的隐伏矿体三维综合信息定量预测流程和方法。方法包括数据收集及地质数据库管理、三维地质建模及地球物理数据融合、地质特征空间分析及控矿因素提取、多维多元控矿信息融合及预测信息集构建、隐伏矿体三维定位定量预测等多方面内容。由于方法综合了地质体三维建模、多维空间分析技术、地球物理方法以及预测方法,因此可有效提高三维成矿预测的有效性和可靠程度。为验证方法的有效性,本文在宁芜盆地分别针对矿田和矿区尺度,开展了中、大比例尺的三维成矿预测实例研究,取得了较好效果。研究显示该方法体系可有效地对深部隐伏矿体进行定位定量预测,能够服务于今后的新老矿区隐伏矿体找矿勘探工作。
開展三維綜閤信息成礦預測,是噹前隱伏礦體找礦勘探的實際需要,但目前尚缺乏繫統的研究,工作方法體繫仍有待深入探討。本文提齣瞭一套較為完善的隱伏礦體三維綜閤信息定量預測流程和方法。方法包括數據收集及地質數據庫管理、三維地質建模及地毬物理數據融閤、地質特徵空間分析及控礦因素提取、多維多元控礦信息融閤及預測信息集構建、隱伏礦體三維定位定量預測等多方麵內容。由于方法綜閤瞭地質體三維建模、多維空間分析技術、地毬物理方法以及預測方法,因此可有效提高三維成礦預測的有效性和可靠程度。為驗證方法的有效性,本文在寧蕪盆地分彆針對礦田和礦區呎度,開展瞭中、大比例呎的三維成礦預測實例研究,取得瞭較好效果。研究顯示該方法體繫可有效地對深部隱伏礦體進行定位定量預測,能夠服務于今後的新老礦區隱伏礦體找礦勘探工作。
개전삼유종합신식성광예측,시당전은복광체조광감탐적실제수요,단목전상결핍계통적연구,공작방법체계잉유대심입탐토。본문제출료일투교위완선적은복광체삼유종합신식정량예측류정화방법。방법포괄수거수집급지질수거고관리、삼유지질건모급지구물리수거융합、지질특정공간분석급공광인소제취、다유다원공광신식융합급예측신식집구건、은복광체삼유정위정량예측등다방면내용。유우방법종합료지질체삼유건모、다유공간분석기술、지구물리방법이급예측방법,인차가유효제고삼유성광예측적유효성화가고정도。위험증방법적유효성,본문재저무분지분별침대광전화광구척도,개전료중、대비례척적삼유성광예측실례연구,취득료교호효과。연구현시해방법체계가유효지대심부은복광체진행정위정량예측,능구복무우금후적신로광구은복광체조광감탐공작。
For the practical need of prospecting and exploration for buried orebody, three dimension prospectivity modelling based on integrated geoinformation is a useful tool.However,it is still lack of systematic study on it,and the workflow and method of it remains to be further discussed.This paper proposes a relative comprehensive method and workflow of three dimension prospectivity modelling for prediction of the buried orebody,including data collection and database management,three dimension geological modelling and geophysical data integration, geologic characteristic spatial analysis and exploration criteria extraction, multidimensional and multisource data integration and prediction information sets construction and three dimension prospectivity mapping. Because this method and workflow can integrate 3D geological modeling,multidimensional spatial analysis techniques,geophysics method and prospectivity modelling,the usefulness and reliability of 3D prospectivity modelling improved effectively.In order to verify the validity of the workflow and method,this paper takes Ninwu basic as an example,based on ore field with medium scale and mining area with large scale,carries out the three dimension prospectivity modelling for buried orebodies.The workflow and method shows a good result and proves that can be efficiently used for the deep buried orebodies quantitative prediction in new and old mining area.