Geochemistry, Geochronology and Genesis of Gold Mineralization in Nurt of Northern Altay, Xinjiang:A

来源 :地质学报(英文版) | 被引量 : 0次 | 上传用户:yuanshidemeng36
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Gold deposits such as the Aketishikan, Togetobie, Tasbig-Kokeydlas, Kums and Hongshanzui gold deposits in the Nurt area in Altay of Xinjiang were found in Member 3 rhyolite tufflava, fragmental lava and ignimbrite of the Carboniferous Hongshanzui Group. Trace and rare earth elements, sulfur, lead, oxygen and hydrogen isotopes, and geochronological studies indicate that the ore-forming material was mostly supplied by the Carboniferous volcanic rocks through water-rock interaction under a low-to-moderate temperature, and the hydrothermal ore-forming fluid came from meteoric water with some magmatic water input evolved from the granitic magmas. Gold deposits in the Nurt area as well as in the north Altay might form in multiple stages, and the Yanshanian mineralization period should be paid more attention besides the Variscan mineralization period.
其他文献
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
设计伴随着人类物质生产活动而出现,它源于生活,人类的衣、食、住、行都与其密切相关。设计又是艺术、技术与科学的结合,涉及多个学科,具有极强的综合性。就设计的本身而言,
在综合布线领域,由于光纤线径细、质量小、抗干扰能力强,且具有极高的传输速度和很大的频带宽度的特点而受到用户青睐.
语文课程是初中教学的重要内容,而阅读教学是语文教学的关键部分。只有培养良好的阅读习惯和科学有效的阅读技能,才能使学生掌握语文的基础知识和基本技能。鉴于此对语文教学
The Dachang superlarge Sn-polymetal deposit in Guangxi, China, is one of the largest tin deposit all over the world. However, this deposit has long been in deba
随机数提取器是一类输入伪随机源和一串真随机种子,输出真随机数的函数.1999年Trevisan等人通过分析伪随机数生成器与随机数提取器之间的关系,提出了一种构造随机数提取器的
对分级破碎机的弓形齿板进行改进与制作,在齿板下平面中心位置设计一长条形凸台,并与齿座中相对应的凹槽相配合,以此来减少齿板与齿座联接螺栓的剪切力,使紧固螺栓不易松动和
Based on the information of geology, geochemistry, geophysics and remote sensing, the GIS of multi-source information is used to evaluate Cu, W and Au mineral r
Most ore-forming characteristics of the Langshan-Zha’ertaishan hydrothermal exhalation belt, which consists of the Dongshengmiao, Huogeqi, Tanyaokou and Jiashe
He-Ar isotopic compositions of fluid inclusions trapped in pyrites from some representative PGEpolymetallic deposits in Lower Cambrian black rock series in Sout