| 1. | This is due to the higher weathering resistance of hydrothermally altered rock . 这是由于热液蚀变岩石具有较高的抗风化力的缘故。 |
| 2. | The extraction of mineralized and altered rock information from remote sensing image based on svm 东昆仑五龙沟金矿围岩蚀变的遥感识别 |
| 3. | Remote sensing information extraction from altered rocks and minerals based on variation of spectra 多光谱遥感蚀变信息提取的新方法应用研究 |
| 4. | Significance of be bearing striation altered rocks to the finding of concealed jiepailing tin polymetallic deposit 含铍条纹状蚀变岩在发现界牌岭锡多金属隐伏矿床中的找矿意义 |
| 5. | The altered rocks had a similar development with the hydrothermal ore deposits in the area of three paralleled rivers 蒙脱石化蚀变岩的发育分布与三江地区热液矿床的分布具有相似的规律。 |
| 6. | Located in the central part of the qianhe - miaoling - manyu metallogenic belt , the xiaonangou deposit in songxian county is a typical tectonic altered rock type gold deposit 摘要嵩县小南沟金矿床位于前河庙岭蛮峪成矿带中部,是典型的构造蚀变岩型金矿床。 |
| 7. | The nw yunnan area is one of the famous tectonic - metallogenic regions in southwestern china , and a series of engineering problems always occur because of the existence of altered rocks formed by hydrothermal action 摘要滇西北地区是中国西南地区最重要的构造成矿带之一,与其相伴出现的蚀变岩常引起一系列工程问题。 |
| 8. | It was shown by field investigation and lab tests that the types of altered rocks were mostly those of montmorillonitization , and the altered clay mineral was mainly pure montmorillanite , which rendered the altered rock both soft and expansive 野外地质调查和室内测试表明:滇藏铁路滇西北段出露的多为蒙脱石化蚀变岩带,蚀变岩的黏土矿物组成绝大多数都是单矿物的蒙脱石,导致该地区的蚀变岩既是强度极低的软岩,又是典型的膨胀岩。 |
| 9. | This process was propitious to enrich , activate , transport the copper . in different alteration granodiorite porphyry , sio2 , k2o , cu , mo are depleted in the fresh and weakly altered rock , and are enriched in the strongly altered rock , cl is also enriched in the strongly altered rock . but na2o and fe are extracted from the porphyry into the ore - forming fluid , especially the presence of fe is in favor of cu deposition 在铜厂岩体不同的蚀变带中, sio _ 2 、 k _ 2o 、 cu 、 mo等从新鲜斑岩甚至弱蚀变带中带出,而在强蚀变带强烈富集, cl同样有在强蚀变岩石中富集的趋势;而na _ 2o 、 fe从斑岩体中带出,进入流体相中,流体中大量fe的存在,有利于铜的沉淀、富集成矿。 |
| 10. | Based on such characteristics of the xiaonangou gold deposit as trace element associations , horizontal zoning , vertical zoning , element contrast values , orebody lateral plunging , and attitudes and sizes of orebodies , this paper deals tentatively with the geochemical anomaly pattern of tectonic altered rock type gold deposits , with the purpose of establishing ore - prospecting criteria for ore exploration work of this area 以小南沟金矿床中微量元素组合关系、水平分带、垂直分带、元素对比值、矿体侧伏、矿体产状和规模等特征为例,探讨构造蚀变岩型金矿床的地球化学异常模式,以期建立地质找矿标志,指导本地区的找矿工作。 |