北京十三陵元古宙大红峪组含事件信息的沉积岩研究
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摘要
北京十三陵元古宙大红峪组在不足 4km的距离内岩相急剧变化 ,实为国内外罕见。从东至西 ,泰陵剖面由灰色角砾硅化岩 +黑色粉砂凝灰页岩 +黄色含长石石英砂岩组成 ,山顶剖面由不纯砂岩 +泥质白云岩组成 ,德胜口剖面由泥质白云岩 +石英砂岩 +层凝灰岩组成。本文仅对泰陵剖面大红峪组的三种岩石进行系统研究。宏观、微观特征、地球化学和同位素地球化学分析数据表明 :泰陵剖面大红峪组的灰色角砾硅化岩和黑色粉砂凝灰页岩是受火山 -地震事件影响形成的沉积岩 ,而覆盖其上的黄色含长石石英砂岩形成于正常滨海环境中。最后提出大红峪组含事件信息的沉积岩形成模式图。
The drastic lithofacies change of the Dahongyu Formation in less than 4 km within the Ming Tombs District of Beijing is a phenomenon rarely seen both in China and abroad, From east to west, there are Tailing section composed of grey brecciated silicified rock+black silty tuffaceous shale +yellow feldspar_bearing quartz sandstone, the hill top section consisting of impure sandstone + muddy dolostone, and the Deshengkou section comprising muddy dolostone + quartz sandstone + tuyffite. As the last two sections have been discussed before, this paper deals mainly with the Tailing section. According to macroscopic, microscopic, geochemical, and isotopic geochemical data, the authors hold that the grey brecciated silicified rock and black silty tuffaceous shale were formed under the influence of volcano_seismic event, thus serving as a kind of event message_bearing rock, whereas the overlying yellow feldspar_bearing quartz sandstone was formed in a normal littoral environment. A model for the event message_bearing rocks of the Dahongyu formation is advanced in this paper.
The drastic lithofacies change of the Dahongyu Formation in less than 4 km within the Ming Tombs District of Beijing is a phenomenon rarely seen both in China and abroad, From east to west, there are Tailing section composed of grey brecciated silicified rock+black silty tuffaceous shale +yellow feldspar_bearing quartz sandstone, the hill top section consisting of impure sandstone + muddy dolostone, and the Deshengkou section comprising muddy dolostone + quartz sandstone + tuyffite. As the last two sections have been discussed before, this paper deals mainly with the Tailing section. According to macroscopic, microscopic, geochemical, and isotopic geochemical data, the authors hold that the grey brecciated silicified rock and black silty tuffaceous shale were formed under the influence of volcano_seismic event, thus serving as a kind of event message_bearing rock, whereas the overlying yellow feldspar_bearing quartz sandstone was formed in a normal littoral environment. A model for the event message_bearing rocks of the Dahongyu formation is advanced in this paper.
引文
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11 SongTianrui,GaoJian .DiscoveryofalgalfilamentsfromsedimentaryrockinUpperPrecamorian (16 0 0MyrBP)oftheMingTombsDistrict ,Beijing .KexueTongbao (ChineseScienceBulletin) ,1985 ,30 (9) :12 2 7～ 12 30 .
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13 宋天锐 .砂屑岩的综合结构系数与沉积环境分析 .岩石矿物学杂志 ,1991,10 (3) :2 0 8～ 2 2 0 .
14 SongTianrui.Texralmaturityofarenaceousrocksderivedbymicroscopicgrainsizeanalysisinthinsection .In :SyvitskiJPMed .Principle ,methodsandapplicationofparticlesizeanalysis.CambridgeUniversityPress ,1991,16 3～ 173 .
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16 宋天锐 ,丁悌平 .硅质岩中的硅同位素 (δ30 Si)应用于沉积相分析的新尝试 .科学通报 ,1989,18:140 8～ 1411.
17 SongTianrui,EinseleG .ProterozoicsedimentaryfaciesandtheirdepositionalenvironmentsintheMingTombsDistrict ,Beijing .In :30thInternationalGeologicalCongressedFieldTripGuide .Beijing :GeologicalPublishingHouse ,1996 ,1～2 2 .
18 LuckJM ,AllegreCJ .Thestudyofmolybdenitesthroughthe187Re - 187Oschronometer.EarthandPlanetaryScienceLetter ,1982 ,6 1:2 91～ 2 96 .
19 和政军 ,宋天锐 ,丁孝忠 ,等 .北京及邻区长城纪火山事件的沉积记录 .沉积学报 ,2 0 0 0 ,18(4 ) :待刊 .
2 宋天锐 ,高 健 .北京十三陵前寒武系沉积岩 .北京 :地质出版社 ,1987,10 7～ 112 ,145～ 146 .
3 杨慧宁 ,须湘官 ,王 琳 .北京十三陵地区长城系大红峪组中层凝灰岩的发现 .岩石矿物学杂志 ,1988,7(3) :2 11～ 2 14.
4 宋天锐 .北京十三陵前寒武纪碳酸盐岩地层中的一套可能的地震 -海啸序列 .科学通报 ,1988,8:6 0 9～ 6 11.
5 SongTianrui.AprobableearthquaketsunamisequenceinPrecambriancarbonatestrataoftheMingTombsDistrict .Beijing .KexueTongbao (ChineseScienceBulletin) ,1988,33(15 ) :112 1～ 112 4.
6 任富根 .蓟县大红峪组火山 -沉积岩系的基本特征 .中国地质科学院天津地质矿产研究所所刊 ,1987,16 :91～ 10 8.
7 SongTianrui,DingTiping .Anewprobeofapplicationofsiliconisotopicδ30 Siinsiliceousrockstosedimentaryfaciesanaly sis .ChineseScienceBulletin ,1990 ,30 (9) :76 1～ 76 6 .
8 和政军 ,宋天锐 ,丁孝忠 ,等 .燕山中元古代裂谷早期同沉积断裂活动及其对事件沉积的影响 .古地理学报 ,2 0 0 0 ,2 (3) :83～ 91.
9 赵澄林 ,李儒峰 ,周劲松 .华北中新元古界油气地质与沉积学 .北京 :地质出版社 ,1997,81～ 114.
10 宋天锐 ,高 健 .北京十三陵地区上前寒武系沉积岩中发现 16亿年的藻类综状体 .科学通报 ,1985 ,10 :76 9～771.
11 SongTianrui,GaoJian .DiscoveryofalgalfilamentsfromsedimentaryrockinUpperPrecamorian (16 0 0MyrBP)oftheMingTombsDistrict ,Beijing .KexueTongbao (ChineseScienceBulletin) ,1985 ,30 (9) :12 2 7～ 12 30 .
12 宋天锐 .沉积地层中的地震事件记录及其意义 .见 :北京大学地质系编 .北京大学国际地质科学学术研讨会论文集 .北京 :地震出版社 ,1998,2 12～ 2 2 1.
13 宋天锐 .砂屑岩的综合结构系数与沉积环境分析 .岩石矿物学杂志 ,1991,10 (3) :2 0 8～ 2 2 0 .
14 SongTianrui.Texralmaturityofarenaceousrocksderivedbymicroscopicgrainsizeanalysisinthinsection .In :SyvitskiJPMed .Principle ,methodsandapplicationofparticlesizeanalysis.CambridgeUniversityPress ,1991,16 3～ 173 .
15 白志民 ,马鸿文 ,杨 静 ,等 .北京平谷—天津蓟县一带钾质响岩岩石学特征及综合利用研究 .地质论评 ,1999,45 (增刊 ) :5 41～ 5 47.
16 宋天锐 ,丁悌平 .硅质岩中的硅同位素 (δ30 Si)应用于沉积相分析的新尝试 .科学通报 ,1989,18:140 8～ 1411.
17 SongTianrui,EinseleG .ProterozoicsedimentaryfaciesandtheirdepositionalenvironmentsintheMingTombsDistrict ,Beijing .In :30thInternationalGeologicalCongressedFieldTripGuide .Beijing :GeologicalPublishingHouse ,1996 ,1～2 2 .
18 LuckJM ,AllegreCJ .Thestudyofmolybdenitesthroughthe187Re - 187Oschronometer.EarthandPlanetaryScienceLetter ,1982 ,6 1:2 91～ 2 96 .
19 和政军 ,宋天锐 ,丁孝忠 ,等 .北京及邻区长城纪火山事件的沉积记录 .沉积学报 ,2 0 0 0 ,18(4 ) :待刊 .
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