冀东卢龙地区青白口系景儿峪组沉积相分析

Urban Geology(2015)

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Abstract
前人对于燕山东段青白口系景儿峪组碳酸盐岩沉积相研究相对较少,而冀东卢龙地区处于燕山最东端,且青白口系景儿峪组碳酸盐岩发育良好,沉积类型比较稳定。本文依据野外实测剖面研究结果,结合部分室内薄片分析,将卢龙地区景儿峪组碳酸盐岩归纳出4种微相类型,分别为泥晶灰岩微相、白云质泥晶灰岩微相、泥粉晶白云岩微相,局部为砾屑灰岩微相,对比Wilson碳酸盐岩沉积相模式,确定了滦河两侧的桃园、阚各庄2条剖面的沉积亚相类型,将景儿峪组沉积相带厘定为潮坪相。
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Key words
carbonate rocks,sedimentary facies,Jingeryu Formaton,Lulong area
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