胶莱盆地一种新金矿类型——蓬家夼式金矿床研究

来源 :地质地球化学 | 被引量 : 0次 | 上传用户:wll201
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
赋存于胶莱盆地下白垩统徕阳组合碳碎屑岩系中的蓬家夼式金矿床与金矿化,无论其形成地质时代还是岩石特征或沉积环境,均与国内外已知的金矿不同,为一种新类型金矿床。本文阐述了蓬家夼式新类型金矿床的地质特征,并论述了其成因,认为其为一种沉积-改造作用形成的新类型金矿床。
其他文献
This study aimed to estimate genetic parameters of Turiaçu pineapple clones using mixed models;and estimate genetic correlation coefficient between trait
用裂变径迹法对广西百色盆地右江河谷发现的玻璃陨石的年龄进行了测定,测定结果为0.732±0.039Ma。这一年龄值与地球磁场从松山负极性世向布容正极性世反转的年代(0.73Ma)吻合
American eels are declining throughout their range requiring a better understanding of physiological requirements of all life stages and optimal conditions for
Slash and burn cultivation systems carried out by many farmers in the Amazon region lead to changes in biogeochemical cycles of nutrients. To assess the extent
Antibiotic growth promoters that have been historically employed to control pathogens and increase the rate of animal development for human consumption are curr
In this study, the effects of different salinity levels (9, 12, 15, 18, 21, 24, 27, 30, and 33) on the growth performance, body composition, antioxidant indexes
The Soil and Water Assessment Tool (SWAT) nitrogen (N) water quality model considers the artificial inputs associated with human activities, including point and
目的总结后路腰椎椎管减压椎弓根螺钉内固定自体骨植骨融合术的手术护理要点。方法 9例患者术前准备完善,术中安全有效输液和体位、出入量、体温管理,器械护士密切配合,严格
Use of hyperspectral spectroradiometers allows for information on different light bands to be captured, allowing for identification of plant health status. Appl
随着市场经济的发展及医学科学的进步,中成药的品种日渐增多,这极大地方便了临床用药,同时也促进了祖国医药事业的发展.但是在临床治疗中发现,部分中成药虽组方严谨,而疗效欠