山东泰安蟠龙山水泥用灰岩矿床地质特征及成因分析

Geological Characteristics and the Origin Analysis of Cement Using Limestone Deposit in Panlongshan in Tai'an City of Shandong Province

摘要:

蟠龙山矿区位于山东省泰安市岱岳区夏张镇，出露地层主要为古生代寒武纪长清群馒头组、九龙群张夏组、崮山组和炒米店组，张夏组上灰岩段为含矿岩段，划分一个矿层(KC01)。矿层基本裸露地表，呈层状，划分5个品级层，其中I级品层1个，呈层状；Ⅱ级品层4个，呈似层状。矿床内无夹层。矿石主要由方解石组成，呈鲕粒结构、泥晶结构和微晶结构及厚层状、豹皮状构造。矿石平均含量CaO 50.67%、MgO 1.88%、K2O +Na2O 0.31%，提交资源量45134.7万t，为超大型优质水泥用灰岩原料矿山。矿床成因为海相化学及生物化学沉积。

Abstract:

Panlong mining area is located in Xiazhang town in Daiyue district of Tai'an city in Shandong province. The outcropping strata are mainly Mantou formation of Changqing group, Zhangxia formation, Gushan formation and Chaomidian formation in Jiulong group in Palaeozoic Cambrian period. The upper limestone section of Zhangxia group is an ore bearing rock section, which can be divided into one ore layer (KC01). The ore layers basically exposed in the surface with stratified type. It can be divided into 5 grade layers, including 1 layer of Ⅰ level with stratified form and 4 layers of grade Ⅱwith stratoid form. There is no interlayer in the deposit. The ore is mainly composed of calcite, and occurred in oolitic structure, mud crystal structure and crystal structure and thick leopard like structure. The average content of ores are as follows: CaO is 50.67%, MgO is 1.88%, K2O +Na2O is 0.31%, and the resource volume is 45134.7 ten thousand tons. It is a super large cement using limestone raw material mine with good quality. The deposit is formed by marine chemistry and biochemistry deposition.