摘要
沙梁铁矿与镜铁山桦树沟、黑沟铁矿床处在同一成矿带,是构成卡瓦铁矿富集区的重点支撑矿床之一,沙梁铁矿体产于长城系桦树沟组中,共圈定铁矿体22条,矿体多呈层状、似层状产出,矿体长度在200-1480m之间,平均厚度在1.72-28.19m之间,全铁平均品位为22.49%-33.69%,矿石自然类型以磁铁矿矿石为主。通过对沙梁铁矿地层层序及含矿岩系特征、构造、侵入岩及矿体特征等多方面的调查分析研究,初步提出了今后勘查中找矿方向以赋矿层位及向斜褶皱构造为主,对卡瓦铁矿富集区内其他矿床的勘查具有启发借鉴意义。
Shaliang iron deposit, located in the same metallogenic belt where have Huashugou and Heigou iron deposit in Jingtieshan Mountain, is one of the main part of Kawa ore concentration area. Shaliang iron deposit lies in Huashugou Formation of Proterozoic Changcheng System. We delineate 22 iron orebodies which are stratiform or stratoid. The iron orebodies is 200m-1480m in length, 1.72m-28.19m in thickness, 22.49%- 33.69% in grade, and the natural type of the ore is magnetite.Through study and analysis on stratigraphic sequence, characteristic in ore-hosted strata, tectonic system, intrusive rock, feature of the ore body of Shaliang iron, this paper suggests that the further prospecting directions should be mainly in ore-bearing stratum and synclinal fold. It＇s of important reference significance for the exploration of Shaliang iron and Kawa iron.
作者
贾鑫
陈世强
李省晔
JIA Xin CHEN Shi-qiang LI Sheng-ye(No. 4 Geological and Mineral Exploration Team, Gansu Provincial Bureau of Geology and Mineral Exploration and Development, Jiuquan, Lanzhou 735000, Chin)
出处
《甘肃地质》
2016年第2期37-43,共7页
Gansu Geology
基金
甘肃省地质勘查基金"甘肃省肃南裕固族自治县沙梁铁铜矿普查"(2012-2013)
关键词
北祁连造山带
沙梁铁矿
地质特征
找矿方向
north Qilian mineralizing belt
Shaliang iron deposit
geological characteristics
prospecting direction
