有些冶金矿床,由于成矿岩脉是由岩浆沿大致垂直于沉积岩岩层的裂隙侵入,并切断岩层而发育成板状矿脉。这种矿脉的规模随岩浆侵蚀程度的不同而大小不等,其长度可由几米变化到几百米甚至几十公里,厚度可由几厘米变化到几公里,而深 In some metallurgical deposits, plate-shaped veins develop due to intrusion of magmatic ore along fractures that are generally perpendicular to sedimentary rock formations and cutting off the rock formation. The size of this vein varies with the extent of magma erosion, its length can vary from a few meters to a few hundred meters or even tens of kilometers, the thickness can be changed from a few centimeters to a few kilometers, and deep