详细解释:a. 斑岩的
词型变化：
异体字:porphyritical英语解释：
形容词 porphyritic:
(of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals详细解释：
por.phy.rit.ic
adj.（形容词）Of or containing porphyry.斑岩的：斑岩的，含斑岩的Containing relatively large isolated crystals in a mass of fine texture.在一团光滑的结构中含有相对量较大的独立石英的