物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
6期
1129-1133
,共5页
高精度磁法%延拓%2.5D人机交互%地球化学测量%磁铁矿
高精度磁法%延拓%2.5D人機交互%地毬化學測量%磁鐵礦
고정도자법%연탁%2.5D인궤교호%지구화학측량%자철광
high precision magnetic method%extension%2.5D human-computer interaction%geochemical survey%magnetite deposit
陕南西乡太山庙地区以往物化探工作程度低，方法单一，异常信息量少。为了探明基性岩体中磁铁矿的展布、延伸边界及深部变化情况，利用地面高精度磁法，使用向上延拓、2．5D人机交互反演等方法，结合1∶2．5万水系沉积物地球化学测量成果和初步的地质特征，对异常作出解释推断和综合评价。通过对地面高精度磁法资料的精细处理，圈定了磁异常范围，确定了基性岩体中磁铁矿的分布范围和空间特征，为地质勘查工程部署提供了可验证靶区。
陝南西鄉太山廟地區以往物化探工作程度低，方法單一，異常信息量少。為瞭探明基性巖體中磁鐵礦的展佈、延伸邊界及深部變化情況，利用地麵高精度磁法，使用嚮上延拓、2．5D人機交互反縯等方法，結閤1∶2．5萬水繫沉積物地毬化學測量成果和初步的地質特徵，對異常作齣解釋推斷和綜閤評價。通過對地麵高精度磁法資料的精細處理，圈定瞭磁異常範圍，確定瞭基性巖體中磁鐵礦的分佈範圍和空間特徵，為地質勘查工程部署提供瞭可驗證靶區。
협남서향태산묘지구이왕물화탐공작정도저，방법단일，이상신식량소。위료탐명기성암체중자철광적전포、연신변계급심부변화정황，이용지면고정도자법，사용향상연탁、2．5D인궤교호반연등방법，결합1∶2．5만수계침적물지구화학측량성과화초보적지질특정，대이상작출해석추단화종합평개。통과대지면고정도자법자료적정세처리，권정료자이상범위，학정료기성암체중자철광적분포범위화공간특정，위지질감사공정부서제공료가험증파구。
Geophysical and geochemical exploration in Taishanmiao area of Xixiang district within southern Shaanxi is characterized by low work extent, single exploration method and very insufficient anomaly information. In order to investigate the distribution, extension?al boundary and deep variation of the magnetite deposit in the basic rock mass, the author adopted ground high-precision magnetic method and utilized such methods as upward continuation and 2. 5D human?computer interactive inversion in conjunction with 1 ∶ 25 000 stream sediment survey results and geological characteristics to make interpretation and deduction of anomalies. Through careful processing of data obtained from ground high-precision magnetic survey, the author delineated the range of magnetic anomaly, deter?mined the distribution and spatial characteristics of magnetite deposit in the basic rock mass, thus providing the verifiable target for fur?ther deployment of geological exploration work.
