| 1. | Tectonic setting of mesozoic magmatic activities in the region of jingbian - panzhuwa in lujiang - zongyang volcanic basin 盘珠洼地区中生代岩浆活动的构造背景 |
| 2. | Magmatic activities and its constraints on gold - silver mineralization in xiong ' ershan area , western henan province 豫西熊耳山地区燕山期岩浆作用对金银成矿的制约因素 |
| 3. | Mesozoic to cenozoic magmatic activities in the cuoqin area of the gangdise belt were intensive and display temporal cycling and spatial zoning 冈底斯构造带措勤地区的中新生代岩浆活动强烈,从侏罗纪到第四纪均有不同程度的表现。 |
| 4. | Seven large areas ( zones ) of magmatic activities were detected on the basis of rock density characteristics and bouguer gravity anomaly data of eastern inner mongolia 摘要依据岩石密度特征,应用布格重力异常资料,在内蒙古东部地区推断7个大型岩浆岩活动区(带) 。 |
| 5. | Luo zhao - hua , deng jin - fu , han xiu - qing . 1999 . magmatic activities and orogenic process of taihangshan intraplate orogen [ m ] . geological publishing house , beijing ( in chinese ) 罗照华,邓晋福,韩秀卿. 1999 .太行山造山带岩浆活动及其造山过程反演[ m ] .北京:地质出版社 |
| 6. | In this region , most endogenetic deposits are controlled by these large magmatic activity areas ( zones ) , and a large magmatic activity area ( zone ) constitutes a metallogenic system 这些岩浆岩活动区(带)控制着内蒙古自治区东部地区大部分内生矿床,也就是说每一个大型岩浆岩活动区(带)实际上是一个成矿系统。 |
| 7. | The internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from the dangqiong ophiolite is 373 ? 8ma , inferring a magmatic activity during late devonian , which end ( t ) = + 3 . 3 suggests that its tectonic setting was probably oceanic island 其nd ( t ) = + 3 . 3 ,认为其时形成环境为洋岛,可能代表了新特提斯蛇绿岩形成时所携带的古老洋壳。 |
| 8. | It obviously controls the distribution of the basement stucture and , in addition , evidently governs the subsequent stratigraphic sedimentation , magmatic activity and , especially , the formation and distribution of the xicheng lead - zinc orefield 它不仅对基底构造的展布具有明显的控制作用,而且对其后的地层沉积、岩浆活动,特别是对西成铅锌矿田的形成和分布也具有明显的控制作用。 |
| 9. | Based on the distribution and petrochemistry of magmatic rocks , the techonic background of sedimentary basin and the mechanism of magmatic activity at the late hercynian in nanpanjiang depression and its adjacent areas , southern china , have been studied 摘要南盘江坳陷及邻区海西晚期岩浆岩分布显示有从中、西部大规模玄武岩喷发中东部中酸性岩浆活动东南部花岗岩侵入的演化规律。 |
| 10. | The study covers regional stratigraphy , regional geological structures and their evolution ; deep - large fracture system and building - moutain straps in the basin ; distributing of mineralization concentration area and mineralazition characteristics of different metal fields ; volcanic magmatic activity and magmatic distributing ; the petrology , element geochemistry features of the magmatic rock series ; the relationship between magmatic distributing and mineralization ; the relationship between magmatic forming - age and mineralization ; the relationship between magmatic form and mineralization ; source of mineral materials , source of hydrothermal solution and source of mineralizing agent ; transport forms of metal in the solution ; the ore - forming geochemical mechanism , etc . it turns out as follows : ( 1 ) lanping basin formed in the linkup of the plates and it was propitious to form deep - large fracture 研究内容包括:区域地层及区域构造演化;盆地深大断裂系统及造山带;区域地球物理场;矿集区矿床的时空分布、矿化特征;岩浆岩活动与岩浆岩分布;岩浆岩岩石学特征;岩浆岩元素地球化学特征;岩浆岩分布与成矿的关系;岩浆岩成岩时代与成矿的关系;岩浆岩组成与成矿的关系;成矿物质的来源,成矿流体的来源;成矿物质搬运、富集的地球化学机理等。研究结果表明:兰坪盆地发育于板块的拼接地带,有利于发育深大断裂系统。 |