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对新墨西哥西南部和亚利桑那东南部2000km~2范围内进行河流水系地球化学测量研究表明,该区发育有低到中级背景异常开阔带。许多异常带与第三纪中期喷出中心和第三纪断层带伴生。有少数喷出中心产有金属矿床;而大部分喷出中心的金含量不高。然而,由于热液蚀变和Fe-Mn-氧化染色分布广,地球化学异常的遍及程度比早发现的露头高,这就极可能是与浅成侵蚀程度有关,而与无矿化标志关系不大。因此,根据相对侵蚀程度解释地球化学资料,可以推断,深成火山组合的贱金属,贵金属和稀有金属矿床的元素分带集中在未发现的地下矿床之上。为了提高识别深部目标,我们采用了经验性的测定比值:
The study of river system geochemistry in the range of 2000km ~ 2 in the southwestern New Mexico and southeastern Arizona shows that there are low to medium background anomalous open belts in this area. Many anomalous zones are associated with the Tertiary jet center and the Tertiary fault zone. There are a few jetting centers producing metal deposits; most of the jetting centers have low gold content. However, due to the extensive distribution of hydrothermal alteration and Fe-Mn-oxidation stains, the geochemical anomalies are more widespread than the earlier discovered outcrops, which is most likely related to the degree of shallow erosion but not to the mineralization sign Big. Therefore, based on the interpretation of geochemical data relative to the degree of erosion, it can be inferred that the elemental zonings of the basement, precious and rare-metals deposits in the deep volcanic assemblage are concentrated in the undiscovered underground deposits. In order to improve the identification of deep targets, we adopted an empirical ratio: