A study on attitude of insidious diabase and its lithoface zone in Luo 151well field in Zhanhua depression, Shandong.

The insidious diabase intruded in the third segment and second segment in S hahejie formation in Luo151 well field in Zhanhua depression, Shandong, is a near surface conformity intrusion. The diabase is made up of three rock b odies intruded in different periods of time of approximitily Dongying perio d and Guantao period with interlayers existing among these rock bodies. Wal l rock of the rock bodies was baked to be metamorphosed while magma intrude d, which can be divided into two lithoface zones: carbonaceous slate zone a nd hornfels zone. As for diabase, two lithoface zones can also be divided i n each rock body such as border zone and center zone because of the affect of different condensing sate. Lithoface zone has a strong affect on reservo ir space, from which a concept model of reservoir space growing was set up.