| 辽东半岛南部的石炭-二叠系界线 |
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| 引用本文： | 陈为公,范国清.辽东半岛南部的石炭-二叠系界线[J].国土资源,2000(3). |
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| 作者姓名： | 陈为公 范国清 |
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| 作者单位： | 辽宁省地质矿产研究院!辽宁沈阳110032 |
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| 摘 要： | 辽东半岛南部的太原组属石炭－二叠系(C－P)过渡层，其海相灰岩发育，类、牙形类等海相化石丰富，是东北南部和华北C－P界线研究较为理想的地区。目前国际上以牙形类化石Streptognathodusisolatus的首现为二叠系的底界，该牙形类化石的首现在我国尚难以确定，而以类Pseudoschwagerina(Sphaeroschwagerina)带的底界作为C－P界线已得到更多研究者的支持。与之相对应，辽东半岛南部太原组中上部类可归结为Sphaewoschwagerina－Rugosofusulina(SR)组合带，可作为C－P界线。
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| 关 键 词： | 辽东半岛 石炭-二叠系 界线 牙形类 类 组合带 |
THE BOUNDARY BETWEEN CARBONIFEROUS AND PERMIAN SYSTEMS IN THE SOUTH OF LIAODONG PENINSULA |
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| CHENWei-gong,FANGuo-qing.THE BOUNDARY BETWEEN CARBONIFEROUS AND PERMIAN SYSTEMS IN THE SOUTH OF LIAODONG PENINSULA[J].Land & Resources,2000(3). |
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| Authors: | CHENWei-gong FANGuo-qing |
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| Abstract: | ThemarinelimestoneofCarboniferous-PermiansystemsinTaiyuanF.inthesouthofLiaodongpeninsulaisdevelopedwellandcontentsanumberofmarinefossils,suchasFusulinidandConodot.ThesouthofLiaodongpeninsulaisafavourableareaforstudyingtheboundarybetweenCarboniferousandPermiansystemsinthesouthNortheastandNorthChina.InternationallyitiswidelyacceptedthatthestratigraphicpositionwhereStreptognathodusisolatusisfirstdiscoveredshoudbethebottomboundaryofPermiansystem.ButinChina,theplacewheretheConodotfossilisfirstdiscoveredisdifficulttoidentified.MoreandmorepaleotologistsinChinaconsiderthatthebottomboundaryofPseudoschwagerinazoneisusedastheboundarybetweenCarboniferousandPermiansystems.InthesouthofLiaodongpeninsula,Sphaeroschwageina-Rugosofusulina(SR)assemblagezone,whichisconcordantwithPseudoschwagerina,canbeusedastheboundarysignofCarboniferousandPermiansystems. |
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| Keywords: | Liaodongpeninsula Carboniferous-Permiansystems boundary Conodot Fusulinid assemblagezone |
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