lower mesozoic

基本解释

The middle scale Huangchengshan silver deposit, prospected and appraised in the recent years, is located in Mesozoic lower-Cretaceous volcanic and subvolcanic rock.
皇城山银矿床是近年勘查评价出的一处中型低温银矿床。
The lower metamorphic grade Mesozoic-Cenozoic strate developing in our country possess the favourable conditions to form biological activity and lower temperature thermolysis gas reservoirs.
我国中新生代地层发育，变质程度较低，具备生物一低温热解气成藏的有利条件。
The reservoir rocks are Archaean granite, Lower Paleozoic carbonate rocks, Mesozoic sand rock and volcanic rock and fracture, solution cavities and pores are the major preserving spaces.
储集层由太古界变质岩、下古生界碳酸盐岩和中生界砂岩、火山岩组成，储集空间主要为构造裂缝及溶蚀孔隙；