By the study of metallogenic geologic characteristics of the various gold deposits , the author sets up the ore - forming model of some typical deposits such as shuangqishan deposit and zhijinshan deposit etc . . it is considered that the gold deposits of metamorphic rock category and the volcanic rock category are the main gold - prospecting categories and carlin gold deposit and mulongtao gold deposit are the potential categories in fujian province 系统总结了福建省各类型金矿的成矿地质特征，建立了双旗山金矿和紫金山铜金矿等典型矿床的成矿模式，提出了变质岩型金矿和火山岩型金矿是福建省金矿找矿的主攻类型，卡林型金矿和穆龙套式金矿为潜在找矿类型。
5 . based on the analysis of their source rocks , the mesozoic detrital rocks in feixi area are mainly derived from metamorphic rocks of fuziling and luzhengguan groups , and the provenance of fenghuangtai formation is a disappeared ultra - high pressure metamorphic rock unit characterized with inland arc eclogites 物源分析表明，位于肥西地区中生代碎屑岩主要来自佛子岭群和卢镇关群变质岩，凤凰台组的源区来自于一个已经消失的以岛弧榴辉岩为代表的含超高压变质岩单元。
Based on a comprehensive review on research results of metamorphic rocks , the authors argue that the formation and exhumation of uhpm ultra - high pressure metamorphite experienced two stages , i . e . , cold slab subduction and exhumation during 240200ma , and lithosphere delamination and thermal exhumation during 196163ma . the rapid thermal exhumation , co - occurred with extensive regional metamorphism and intermediate - acidic magmatism , implied that the subducted slabs had broken off and delaminated . the 通过全面评述该区变质岩研究成果，作者认为：超高压变质岩的形成和剥露经历了240200ma的板片冷俯冲冷折返和196163ma的岩石圈拆沉热折返热折返伴随了广泛而强烈的区域变质作用和中酸性岩浆活动，指示板片断离拆沉的发生超高压变质岩
