( 4 ) the comparative research suggests that various types of ultrabasic - basic rocks occurred different geological environment and different intruded mechanism can bring on different types of nickel sulflde deposit ( 4 )比较研究表明，不同地质环境产出的不同类型超基性?基性岩及其不同的侵入机制可以导致形成不同类型的镍矿床。
( 3 ) jianchaling ultrabasic intrusion belongs to magnesian ultrabasic simple rock - body , close related with yangzi block in space , which formed in the interim of proterozoic active tectonic zone to phanerozoic orgenic belt ( 3 )证实煎茶岭超基性岩体为含铁的镁质超基性单式岩体，空间上与扬子地块关系密切，形成于新元古代由元古宙活动带向显生宙造山带过渡时期。
The nickel deposits in china can be sort into three kinds , i . e . the ultra - basic related , ultrabasic - basic related , and neutral - basic related , of which present obvious specialty on magmatic origin and geochemistry 特别是将我国与侵入岩有关的镍矿床分为与超基性岩有关、与超基性?基性岩有关和与中性?基性岩有关的三类，表现出明显的岩浆岩成矿专属性和地球化学专属性。 3
The conclusion is that the enrichment of pt , pd is controlled by big and deep fractures , that emeishan basalt is one of the sources of pt and pd , and that basic - ultrabasic rock offers the ore - forming elements and the ore forming energy 指出研究区的深大断裂对铂族元素的富集表现出很好的控制作用，峨眉山玄武岩为铂族元素的矿源层之一，岩浆岩为铂族元素的富集提供了成矿物质及成矿能量。
A comparison of the prospecting model of the hf type with the prediction model of the vms type reveals that their thermal dynamic mechanisms are different : the former is related to basic - ultrabasic rock intrusion , while the latter to acidic rock intrusion 与白银铜矿区域地球化学预测模式相比较，富铁型铅锌矿床中除铁族元素指示基性超基性岩侵入事件外，其他元素均大致相似，两大类矿床形成的初始热动力条件不同。
( 4 ) based on the analysis and summary of typical orogenic belt in china , advancing the marker to distinguish the exist of delamination occurred in orogenic belt , especially giving up some new marker such as ring ultrabasic - basic - medium acid rock body , local bimodal continental rifting volcanic activity ; rapakivi granite , etc . ( 5 ) collating the main stages of south part of sanjiang orogenic belts evolution after the close of old nanchangjiang ocean , i 较全面地提出了判别造山带成熟拆沉作用发生的标志，特别是根据对我国典型造山带的总结分析，提出了一些新的标志，如环状超基性一基性一中酸性杂岩体;局部双峰式大陆裂谷型火山活动;二长花岗岩、碱性花岗岩和奥长环斑花岗岩;地壳局部短暂下沉;等等。
In this article , model of geological conception in panzhihua - xichang area is established , and then the authors used gis as the tool to analyze the pge ore - forming geological conditions , including geological structure , emeishan basalt , basic - ultrabasic rock and pge geochemical abnormal 本文在建立攀西地区铂族元素矿床地质概念模型的基础上，用地理信息系统( gis )分析了该地区的铂族元素成矿地质条件，包括地质构造、峨眉山玄武岩、基性一超基性岩和铂族元素地球化学异常特徵。
The coqen basin in xizang lies between the bangong - nujiang suture zone and yarlung zangbo suture zone , and once extended northwards and southwards , respectively centred by the qiekan - goicang - asog rift zone as the center of deposition and subsidence during the middle jurassic to the early creatceous . ( 1 ) during the middle - late jurassic , the rift zone was occupied by deep - water turbidites , radiolarian siliceous rocks , shallow - water carbonate rocks , clastic rocks and basic - ultrabasic rocks , while both sides of it by littoral and shallow marine elastic rocks and carbonate rocks 摘要位于班公湖怒江缝合带与雅鲁藏布江缝合带之间的措勤盆地，在中侏罗世早白垩世期间具有以且坎古昌阿索裂谷带为沉积、沉降中心向南北两侧展开的古地理格局：中晚侏罗世时期，裂谷带内由深水浊积岩、放射虫硅质岩和浅水碳酸盐岩、碎屑岩岩片及基性超基性岩等组成；裂谷带两侧由滨浅海相碎屑岩和碳酸盐岩组成。
The copper , iron , nickel and silver deposits might be assigned to four metallogenic series : i . the metallogenic subseries of copper , molybdenum , gold , silver deposit related to late devonian - early carboniferous basic - intermediate - acid hypabyssal intrusive - eruptive rocks ; ii . the metallogenic subseriesof iron , copper , zinc deposits related to early carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iii . the metallogenic subseries of copper , silver , iron deposits related to middle - late carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iv . the metallogenic subseries of copper , nickel and platinum group deposits related to late carboniferous - early permian basic - ultrabasic rocks ; 3 , division of regional major metallogenic belts on the basis of the previous work conducted and by following the principles , grounds and methods of the division of metallogenic belts , areas and fields , . in light of this , metallogenic belts of grade iv were divided 1 、按照成矿系列理论的学术指导思想，将研究区华里西期铜矿床成矿系列划分为四个成矿系列亚系列： 、晚泥盆?早石炭世延东?土屋?三岔口与中酸性岩浆侵入活动有关的cu 、 mo 、 au矿床成矿亚系列、早石炭世与岩浆作用有关的铁、铜、金、银矿床成矿亚系列、中石炭世与岩浆作用有关的cu 、 fe 、 ag 、 au矿床成矿亚系列、晚石炭世-早二叠世与幔源基性?超基性岩有关的铜、镍、铂族矿床成矿亚系列并从地层、岩浆岩、控矿构造、地球化学、成矿特征等方面对各成矿亚系列进行了详细论述。
