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青藏高原冈底斯西段措折罗马镇北成矿区控矿要素图

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国家青藏高原科学数据中心2025-04-28 更新2025-06-21 收录
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https://data.tpdc.ac.cn/zh-hans/data/00367cec-28be-4957-b2b2-ddb70ae1e045
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青藏高原冈底斯西段措折罗马镇北成矿区的控矿要素受多重地质构造与岩性组合控制。区内主要发育全新世与上更新世沉积层、橄榄玄武岩、花岗岩及沙木罗组等岩性单元,其中断裂构造(如断层及运动方向标注)与角度不整合面为关键控矿构造,可能为成矿流体运移和富集提供通道与空间。岩性控矿特征显著,如花岗岩与玄武岩接触带、角岩化带及岩片(如枕长玄武岩岩片、超短融侯岩岩体)常伴随金属矿化。此外,图中标注的“I弦构造单元边算聚”等构造边界可能指示深部构造对矿体定位的制约。矿化与热液活动相关的蚀变带(如云英岩化、硅化)及岩体(如灰白色花岗斑岩、粉红色网长岩)空间分布密切相关。综合地质图显示,该区成矿潜力集中于构造-岩性交汇部位,尤其是断裂与中酸性岩体接触带,为后续矿产勘探提供了重要靶区。

The ore-controlling factors of the mineralization district north of Cuozheluoma Town, western segment of the Gangdise Belt, Qinghai-Tibet Plateau, are governed by multiple geological structures and lithological assemblages. The study area primarily develops lithological units including Holocene and Upper Pleistocene sedimentary strata, olivine basalt, granite, and the Shaluo Formation. Among these, fault structures (e.g., faults and their movement direction markers) and angular unconformities serve as key ore-controlling structures, which may provide channels and spaces for the migration and enrichment of ore-forming fluids. Significant lithological ore-controlling characteristics are observed: contact zones between granite and basalt, hornfelsic alteration zones, and rock slices (e.g., pillow basalt slices, ultra-short melting Hou rock bodies) are frequently associated with metallic mineralization. Additionally, structural boundaries such as the marked "I-string structural unit boundary aggregation" in the map may indicate the restriction of deep structures on ore body localization. Mineralization is closely spatially correlated with alteration zones linked to hydrothermal activities (e.g., greisenization, silicification) and rock bodies (e.g., gray-white granite porphyry, pink feldspathic granite). The comprehensive geological map reveals that the mineralization potential of this area is concentrated in tectono-lithological intersection zones, particularly the contact zones between faults and intermediate-acid rock bodies, which serve as important targets for subsequent mineral exploration.
提供机构:
杨竹森
创建时间:
2025-04-26
搜集汇总
背景与挑战
背景概述
该数据集是青藏高原冈底斯西段措折罗马镇北成矿区的控矿要素图,重点展示了断裂构造、岩性组合和蚀变带等关键地质要素对成矿的控制作用。数据集揭示了矿化潜力主要集中在构造-岩性交汇部位,特别是断裂与中酸性岩体接触带,为区域矿产勘探提供了重要参考。
以上内容由遇见数据集搜集并总结生成
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