位置:成果数据库 > 期刊 > 期刊详情页
沉积盆地成藏(矿)系统
  • ISSN号:1000-3657
  • 期刊名称:《中国地质》
  • 时间:0
  • 分类:TE122.31[石油与天然气工程—油气勘探]
  • 作者机构:[1]大陆动力学国家重点实验室(西北大学)、西北大学含油气盆地研究所,陕西西安710069
  • 相关基金:国家重点基础研究发展规划(973)项目(编号2003CB214600)、教育部长江学者和创新团队发展计划(IRT0559)和国家自然科学基金项目(40372096)资助.
中文摘要:

沉积盆地集有机和无机、金属与非金属矿产于一盆,构成了相对独立的矿产赋存单元和成藏(矿)大环境;称之为沉积盆地成藏(矿)系统。盆地成矿系统一般处于低温、低压环境和开放体系中;成矿流体、生物-有机质(流体)在其中起着极为重要的作用,且常受温度变化的明显影响;成矿作用一般与岩浆活动无直接成因联系。 形成沉积矿产的成矿物质,初始赋存大多呈分散状;从其初始聚集到成矿作用发生和矿藏形成,所处环境发生了显著的变化:一般都经历了原始成矿物质聚集→转化成矿→富集成藏及改造定位3个阶段。成矿物质运移的动力主要来自压实作用和异常压力、构造作用、渗流携带作用、分子扩散、挥发作用和浮力等;运移的途径主要为孔隙、构造作用形成的断裂和非构造产生的微裂隙及不整合面等。矿源岩与储集层的关系多样,可有自生自储、新生古储、古生新储等组合。沉积矿产的聚集成矿场所,一般为由渗透性差的泥岩、膏盐层等封盖的圈闭构造(背斜、断层、岩性等),或处于地球化学环境、构造特征、岩性-岩相等突变的边界-转化带。原始成矿物质聚集与矿藏形成—定位之间间隔的时间一般可较长,时差可达几亿年。沉积矿藏形成通常具动态成矿过程,一般成矿期次多和后期改造明显:既可使已形成的矿藏多期叠加进一步富集,也可使其遭受改造而发生改变或形成次生矿藏。以上特点决定了沉积矿藏的形成,特别是其定位时代相对较晚。同盆共存的各类沉积矿产资源丰富、特征多样;其成矿作用和分布组合关系复杂,具有共存多样性、共荣亲和性和排他性等特征。以上特征在不同类型沉积矿产似不尽相同,各自还有其个性特点。 根据地球构造动力学环境的不同,可将盆地成矿系统分为裂陷伸展、?

英文摘要:

The sedimentary basin incorporates organic and inorganic, metallic and non-metallic mineral deposits, forming a relatively independent mineral resource-hosting unit and an reservoir-forming (mineralization) macro-environment, which may be called the sedimentary basin reservoir-forming (mineralization) system. The system is generally located in a low-temperature, low-pressure environment and an open system, in which mineralizing fluids, organisms/organic matter (fluids) play a vital role and are significantly affected by temperature changes. Mineralization generally has no direct genetic relationship with magrnatic activities. The initial occurrences of mineralizing materials that form sedimentary deposits are mostly scattered; from their initial accumulation through mineralization to mineral deposit formation, marked changes take place in their environment. They generally experience a process from primitive mineralizing material accumulation→mineralization→enrichment, mineral deposit formation, reworking and reposition. The driving force of migration of mineralizing materials mainly comes from compaction and abnormal pressure, tectonism, seepage flow, molecular diffusion, volatilization and buoyancy force. The main passageways of migration are pores, faults formed by tectonic processes and microfractures and unconformity produced by non-tectonic processes. The relationships between mineral source rocks and reservoirs are highly varied, including such associations as self-generating and self-accumulation, late generation and early accumulation, early generation and late accumulation. The sites where sedimentary minerals are deposited are generally traps (e.g. anticlinal, fault and lithologic traps) sealed by mudstones and evaporites with poor permeability or abrupt boundary transformation zones of geochemical environment, tectonic features and lithology-lithofacies. Generally, the time interval between primitive mineralizing material accumulation and mineral deposit formation-redeposition ma

同期刊论文项目
同项目期刊论文
期刊信息
  • 《中国地质》
  • 北大核心期刊(2011版)
  • 主管单位:国土资源部
  • 主办单位:中国地质调查局
  • 主编:李廷栋
  • 地址:北京市西城区阜外大街45号中国地质调查局发展研究中心
  • 邮编:100037
  • 邮箱:zhgdzh@vip.sina.com
  • 电话:010-58584208
  • 国际标准刊号:ISSN:1000-3657
  • 国内统一刊号:ISSN:11-1167/P
  • 邮发代号:2-112
  • 获奖情况:
  • 2012中国最具有国际影响力学术期刊,2013全国百强科技期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰地学数据库,荷兰文摘与引文数据库,美国地质文献预评数据库,美国剑桥科学文摘,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:16884