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一九七六年我队在参加东疆部分地区的地质科研工作中,与甘肃二队、新疆六大队协作配合,对M1454和库姆塔格地区的地层、构造、岩浆岩和矿床进行了一些调查研究,获得了一些新认识,简要报导如下: 1、在库姆塔格铁矿含矿岩系以南出露的一套绛紫色一猪肝色凝灰质砂岩、砾岩夹霏细岩及灰岩层,以往划为下二迭统哲斯组,由于首次采到ProfusuIineIIa sp.(原小纺锤蜓)化石,将其时代改定为中石炭世。 2、库姆塔格菱铁矿床的含矿围岩,原定为中上石炭统吐古吐布拉克组。现根据珊瑚:LithostrotioneIIa stylaxis(Trd.)(柱状小石柱珊瑚)、
In 1976, our team participated in the geological research work in some parts of East Xinjiang in cooperation with the Second Gansu and Xinjiang Six Brigade teams and carried out some experiments on the strata, structures, magmatic rocks and deposits in M1454 and the Kumtag region Some new understandings have been obtained through investigation and research. The brief reports are as follows: 1. A set of purplish-purple pig liver tuffaceous sandstone, conglomerate and feldspathic rock exposed south of the Coumtag iron ore-bearing rock series, The limestones, previously classified as the Lower Second Diego Classe Formation, were changed to Middle Carbonates by the first acquisition of the fossils of Profusu Iine IIa sp. 2, Kumtage siderite ore-bearing rocks, originally designated as the Upper Carboniferous Tuugu Tu Bulake group. Now according to the coral: LithostrotioneIIa stylaxis (Trd.) (Columnar small column coral),