CAJ | 학술논문

残存于济南市历下区龙洞一带下古生界出露区岩溶负地形中的砾岩体，总体呈浅褐灰色，由砾石及胶结物组成。灰岩、白云岩砾石，砾径大小不一，呈次棱角一次圆状，燧石砾、褐铁矿砾成熟度高、磨圆度好，表面光洁，呈蜡状光泽，钙质孔隙式及接触式胶结，已硬结成岩，砾岩体与周围呈角度不整合接触关系。通过对比研究，初步认定其为新近纪上新世一第四纪更新世白彦组沉积，这一新发现填补了该区岩石地层单位的一项空白，为研究地质构造发展史提供了重要的佐证。
잔존우제남시력하구룡동일대하고생계출로구암용부지형중적력암체，총체정천갈회색，유력석급효결물조성。회암、백운암력석，력경대소불일，정차릉각일차원상，수석력、갈철광력성숙도고、마원도호，표면광길，정사상광택，개질공극식급접촉식효결，이경결성암，력암체여주위정각도불정합접촉관계。통과대비연구，초보인정기위신근기상신세일제사기경신세백언조침적，저일신발현전보료해구암석지층단위적일항공백，위연구지질구조발전사제공료중요적좌증。
Conglomerate ore bodies exposed in lower Paleozoic karst terrain residued in Longdong area in Lixia district of Jinan city are overall pale brown - gray. They are composed of gravel and cement. Diame- ter sizes of limestone and dolomite gravels are different. They are sub - angular and sub - rounded types. Flint gravels and limonite gravels have high maturity and good roundness. Their smooth surfaces are waxy luster with calcium pore type and contact cement. Conglomerate has an angular unconformity contact rela- tionship with the surrounding areas. By contrast and study, it is primarily determined that it is Neogene Baiyan group deposition. This new discovery can fill the blank of lithostratigraphic units in this area. It wll provide important evidences for studying the history of geological structures.