今年在开展闽北前寒系变质岩的调研和考察中,笔者于建阳、建瓯、政和等地变质岩区首次发现了科马提岩、韧性剪切带,并对有争议的前寒武系建阳“长坪砾岩”的成因问题提出了是沉积成因的初步看法。科马提岩具有醒目的“鬣刺”结构,镜下鉴定、岩石化学、稀土分析结果均与科马提岩 This year in the research and investigation of the metamorphic rocks in the northern part of northern Fujian, the author first discovered the kamamatite and ductile shear zones in the metamorphic rock areas of Jianyang, Jianou, Zhenghe and other places, The origin of the “Changping conglomerate” in the Wuyi-Jianyang area is a preliminary view of the genesis of the sediments. Komati rock has a striking “mammoth” structure, microscopic identification, petrochemistry, rare earth analysis results are associated with kamamatite