地质与勘探

黔中地区下震旦统含磷岩系对比及意义

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地质与勘探 | 地球化学 2025,61(2): 371-384

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地质与勘探 | 地球化学 2025, 61(2): 371-384

黔中地区下震旦统含磷岩系对比及意义

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陈学治¹, 陈仁²

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Correlation and significance of the Lower Sinian phosphorus-bearing rock series in central Guizhou Province

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doi: 10.12134/j.dzykt.2025.02.013

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贵州省查明磷矿资源量全国排位第三，高品位磷矿资源量全国排名第一，目前建有亚洲最大的磷化工基地。开展黔中地区早震旦世含磷岩系的对比研究，加强对“黔中古陆”或“黔中隆起” 的认识，对深部磷矿预测及勘查具有重要意义。本文以贵州瓮福地区大湾磷矿床含磷岩系剖面为对比标准，通过对含磷岩系各岩性段、磷矿层、磷块岩特征的再认识，将大湾磷矿床含磷岩系划分为两个岩性段六个岩性层，进行纵、横剖面分析和对比，总结其特征和变化，进而分析“黔中古陆”或“黔中隆起” 及周边沉积环境、沉积相。研究认为，含磷岩系沉积底板凹凸不平，在凹陷部位沉积厚度大，凸起部位被剥蚀或存在沉积缺失；“黔中古陆”分布面积小，在古陆周边及内部为洋水组浅水台地沉积，远离古陆则为陡山沱组较深水缓坡沉积；围绕“古陆”周缘早震旦世沉积环境变化大，推测为黔中多岛隆起，在多岛隆起范围内，具有较好的成矿地质条件，预测深部具有较好的磷矿资源找矿潜力。

关键词

含磷岩系 / 磷矿层 / 磷块岩 / 多岛隆起 / 黔中古陆 / 黔中隆起

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Guizhou Province ranks third in China in terms of identified phosphate resources, and ranks first about its high-grade phosphate resources. Currently, it hosts the largest phosphate chemical base in Asia. Comparative studies on the Early Sinian phosphate-bearing rock series in central Guizhou Province aim to enhance the understanding of the Qianzhong ancient land or Qianzhong uplift, which are of significant importance for the prediction and exploration of deep phosphate resources. This work took the phosphate-bearing rock series profile of the Dawan phosphate deposit in the Wengfu area of Guizhou as a comparative standard. Through the re-examination of the lithological section of the phosphorite series, the phosphorite layers and phosphorites, the well-developed phosphate-bearing rock series of the Dawan phosphate deposit was divided into two lithological sections and six lithological layers. Vertical and horizontal profile analyses and comparisons were conducted to summarize their characteristics and variations, thereby analyzing the sedimentary environment and facies around the Qianzhong ancient land or Qianzhong uplift. It is suggested that the sedimentary base of the phosphate-bearing rock series is uneven, with greater deposition thickness in depressed areas and erosion or depositional gaps in raised areas. The Qianzhong ancient land covers a small area, with shallow water platform sediments of the Yangshui Formation around and within the ancient land, and deeper water slope sediments of the Doushantuo Formation further away from the ancient land. The Early Sinian sedimentary environment around the ancient land varies greatly, suggesting a multi-island uplift. Within the range of the multi-island uplift, there are favorable geological conditions for mineralization, indicative of a good potential for deep phosphate resource exploration.

Key words

phosphate-bearing rock series / phosphate ore layer / phosphorite / multi-island uplift / Qianzhong ancient land / Qianzhong uplift

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陈学治, 陈仁. 黔中地区下震旦统含磷岩系对比及意义. 地质与勘探, 2025 , 61 (2) : 371 -384 . DOI: 10.12134/j.dzykt.2025.02.013

. Correlation and significance of the Lower Sinian phosphorus-bearing rock series in central Guizhou Province[J]. Geology and Exploration, 2025 , 61 (2) : 371 -384 . DOI: 10.12134/j.dzykt.2025.02.013

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2025年第61卷第2期

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doi: 10.12134/j.dzykt.2025.02.013

首发时间：2026-04-29

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https://castjournals.cast.org.cn/joweb/dzykt/CN/10.12134/j.dzykt.2025.02.013

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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