周口店地区地质实习报告

周口店地区地质实习报告

周口店地区地质实习报告

中国地质大学（北京）

2006年09月08日

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周口店地区地质实习报告

目录

1 前言·············································································································- 1 -

1.1 周口店实习区交通、地理及经济概况 ·················································································· - 1 -1.2 周口店地区地质研究历史 ······································································································ - 2 -

1.3 实习情况介绍·························································································································· - 2 -

2 地层·············································································································- 4 -2。1 太古界··································································································································· - 4 -

2。2 中元古界······························································································································· - 4 -2。2。1 雾迷山组（Jxw） ·············································································- 4 -2。2.2 洪水庄组（Jxh) ··················································································- 5 -

2.2。3 铁岭组(Jxt） ·····················································································- 5 -

2.2.4 岩相简析 ····························································································- 6 -

2。3 新元古界······························································································································· - 6 -2。3.1 下马岭组(Qbx) ···················································································- 6 -

2.3。2 长龙山组（Qbc） ···············································································- 7 -

2。3。3 景儿峪组(Qbj） ···············································································- 7 -

2.3。4 岩相简析 ··························································································- 7 -

2。4 下古生界······························································································································· - 8 -2。4.1下寒武统府君山组(∈1f）······································································- 8 -2。4。2下、中寒武统（∈1+2)·········································································- 9 -2。4.3 中、上寒武统（∈2+3） ········································································- 9 -2。4。4 下奥陶统(O1）··············································································· - 10 -2。4.4 岩相简析 ························································································ - 11 -

2。5 上古生界····························································································································· - 12 -

2.5。1 中、上石炭统（C2、C3） ··································································· - 12 -

2.5.2 下二叠统（P 1） ················································································· - 13 -

2.5。3 岩相简析 ························································································ - 14 -

2.6 新生界···································································································································· - 14 -

2.6。1 河流阶地沉积 ·················································································· - 15 -

2.6。2 北京猿人洞沉积 ··············································································· - 15 -

3 岩浆岩········································································································ - 17 -

3.1 房山岩体································································································································ - 17 -

3。1.1 石英闪长岩(δο5） ············································································· - 18 -

3.1。2 花岗闪长岩（γδ5） ··········································································· - 18 -

3.1.3 石英闪长岩（δο5）与花岗闪长岩（γδ5）接触关系 ······································ - 19 -3。2 牛口峪“灯泡"岩体 ··········································································································· - 20 -

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