Dongzigou ag deposit and jianbaoshan au deposit are hosted in the sandstone of middle - proterozoic suberathem , which are developed from the proterozoic sediment metal source - rocks formed during the meso - proterozoic volcanism and reworked by the mesozoic tectono - magmatism during the formation of the metamorphic core complexes in eastern hebei . the dongzigou ag deposit has the characteristics of reformed strata - bound origin , the jianbaoshan au deposit , located in the detachment fault , is the alterated rock type . both deposits have the similar wall - rock alteration , and show the same trace element behavior , and ree patterns . they are the results of the multi - stage tectono - magmatism in the environment of continental extension in eastern hebei region . their mineralization depended on their wall rocks and relative location in metamorphic core complexs 赋存于中元古宙长城系常州沟组的洞子沟银矿床和尖宝山金矿床是由密云-都山变质核杂岩构造体系所控制的一组矿床。其成因为中元古宙火山岩浆活动形成的沉积矿源，后经中生代的变质核杂岩构造岩浆体系叠加改造而成。洞子沟银矿床具有层控迭加改造的特点尖宝山金矿床则具有破碎蚀变岩型矿床的特点。
The genesis of gold deposits is complex in this district , the type of quart - vein plus etch rock belongs to hydro thermally superimposed complex mineralization . the type of porphyry and scraping rock containing charcoal belongs to volcano sediment - alteration hydro thermally gold deposits , the formation of gold deposits is controlled by several factors 本区金矿床的成因比较复杂，石英脉+蚀变岩型金矿属于热液叠加复合成因矿床，含炭火山碎屑岩型金矿属于火山沉积?变质热液改造型层控金矿床。
On the basis of overall confirming the reasonableness of available method for calculating migrated component amount , the author has further improved the true constant component fixed calculation method proposed by the author in 2000 , i . e , the calculation of actual true migrated mass and atomic number of metasomatically atered rocks , by using two method of measuring rock density 摘要文章在全面论证已有组分迁移量计算法合理性的基础上，进一步完善了笔者2000年提出的真恒量组分恒定计算法，即：利用岩石的两种实测密度计算交代蚀变岩的实有真迁移质量及其原子数。
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。
