河南省的大别山北麓,构造运动强烈复杂,燕山运动显著,火山活动强烈。中生代火山岩呈北西—南东方向带状分布,露头不连续,地貌为丘陵地。主要岩性为凝灰角砾岩、块集岩、凝灰岩、安山玢岩、流纹玢岩、安山粗面岩,夹少量砂岩和页岩。 这套火山岩地层,历经谭锡畴(1925)、李琳(1937)、吴磊伯(1955—56)调查研究,称 The northern foot of Dabie Mountain in Henan Province has strong and complex tectonic movement, significant Yanshan movement and strong volcanic activity. The Mesozoic volcanic rocks are distributed from northwest to southeast in strip shape. The outcrops are discontinuous and the landscape is hilly. The main lithology is tuff breccia, block rock, tuff, andesite, rhyolite rock, andesite, a small amount of sandstone and shale. This volcanic rock formation, after Tan Xincun (1925), Li Lin (1937), Wu Leibo (1955-56) survey, said