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| 庐枞金属矿集区深地震反射剖面探测研究:一种经济的、变化的采集观测系统实验 | |
| 引用本文： | 卢占武,高锐,匡朝阳,刘金凯,侯贺晟,酆少英,王海燕.庐枞金属矿集区深地震反射剖面探测研究:一种经济的、变化的采集观测系统实验[J].岩石学报,2010,26(9):2553-2560. |
| 作者姓名： | 卢占武 高锐 匡朝阳 刘金凯 侯贺晟 酆少英 王海燕 |
| 作者单位： | 1. 中国地质科学院地质研究所,北京,100037;中国地质科学院深部探测与地球动力学重点实验室,北京,100037 2. 中国石化股份有限公司华东分公司处理解释中心,南京,210007 3. 中国地质科学院地质研究所,北京,100037;中国地质科学院深部探测与地球动力学重点实验室,北京,100037;中国石化股份有限公司华东分公司处理解释中心,南京,210007 4. 中国地质科学院地质研究所,北京,100037;中国地质科学院深部探测与地球动力学重点实验室,北京,100037;中国地震局地球物理勘探中心,郑州,450002 |
| 基金项目： | 本文受国家自然科学基金项目(40704016)、财政部科学专项(140102)、国家深部探测专项(SinoProbe-02)、中国地质科学院地质研究所基本科研业务费项目(J0724、J0803)和地下信息探测技术与仪器教育部重点实验室(中国地质大学, 北京)开放课题项目(GDL0902)联合资助. |
| 摘 要： | 如何运用深地震反射剖面技术同时探测大型金属矿集区浅自几百米,深至地壳底部的地壳精细结构,揭示成矿的深部过程,是一项极具挑战性的攻关实验内容。本文针对庐枞金属矿集区的浅深兼顾的探测目标,实验了一种区域长剖面和矿集区剖面结合的变观测系统采集技术。结果表明,区域长剖面使用40m道距,240m炮距,18～20m井深,16～20kg药量,中间放炮,720道双边接收,60次覆盖的采集参数能够获得浅层至Moho的有效反射,揭示出成矿区的深部构造。矿集区剖面加密道距至10m,炮距80m,将覆盖次数增加到90次,并采用十字测线的拟三维采集技术能有效补充获得丰富的矿区浅层信息,揭露出浅层控矿构造及其与深部的联系。在经费有限的前提下,采用上述变观测系统方法来保证获得浅、深多重反射信息的采集技术是可行的,实际结果证实了该方法技术实验的成功。 |
| 关 键 词： | 采集实验 变观测系统 经济的 深地震反射 庐枞 |
| 收稿时间： | 7/1/2010 12:00:00 AM |
| 修稿时间： | 2010/8/10 0:00:00 |
Research on deep seismic reflection profile in Luzong ore concentration area: An economical and changeable gathering test. |
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| LU ZhanWu,GAO Rui,KUANG ChaoYang,LIU JinKai,HOU HeSheng,FENG ShaoYing and WANG HaiYan.Research on deep seismic reflection profile in Luzong ore concentration area: An economical and changeable gathering test.[J].Acta Petrologica Sinica,2010,26(9):2553-2560. | |
| Authors: | LU ZhanWu GAO Rui KUANG ChaoYang LIU JinKai HOU HeSheng FENG ShaoYing and WANG HaiYan |
| Institution: | Institute of Geology, CAGS, Beijing 100037, China.;Eearthprobe and Geodynamics Open Laboratory of CAGS, Beijing 100037, China;Institute of Geology, CAGS, Beijing 100037, China.;Eearthprobe and Geodynamics Open Laboratory of CAGS, Beijing 100037, China;Processing & Interpretation Center, Huadong Petroleum Bureau, SINOPEC, Nanjing 210007, China;Institute of Geology, CAGS, Beijing 100037, China.;Eearthprobe and Geodynamics Open Laboratory of CAGS, Beijing 100037, China;Processing & Interpretation Center, Huadong Petroleum Bureau, SINOPEC, Nanjing 210007, China;Institute of Geology, CAGS, Beijing 100037, China.;Eearthprobe and Geodynamics Open Laboratory of CAGS, Beijing 100037, China;Institute of Geology, CAGS, Beijing 100037, China.;Eearthprobe and Geodynamics Open Laboratory of CAGS, Beijing 100037, China;The Geophysical Exploration Center of CEA, Zhengzhou 450002, China;Institute of Geology, CAGS, Beijing 100037, China.;Eearthprobe and Geodynamics Open Laboratory of CAGS, Beijing 100037, China |
| Abstract: | How to probe fine structure from the shallow several hundred meters to the bottom of crust by deep seismic reflection profile and to discover deep process of mineralization is a challenging experiment. We test a changeable observing system of deep seismic reflection aiming at revealing shallow and deep target in Luzong metallic ore concentration area. The result demonstrate the acquirement parameters of 40m group interval, 240 shot interval, 18~20m shot depth, 16~20kg charge size, 60 folds and 720 channel are able to acquire effective reflections from shallow layer to Moho. In the interior of the ore concentration area, reducing the group interval to 10m and the shot interval to 80m with 90 fold, and designing a pseudo 3D technology with crossing lines is effective for obtaining additional shallow reflections in ore area and discovering ore-controlling structure in shallow and the relation with deep structure. Under limited fund, applying above changeable observation system to get multiple reflection information from shallow and deep is feasible. Our experiment results confirm the success of the test about this technology. |
| Keywords: | Acquisition test Changeable observation system Economical Deep seismic reflection Luzong |
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