CAJ | 학술논문

　　豫西南一带的晚白垩世盆地分布于东秦岭造山带内，在后造山阶段形成的一系列?NW-SE向中新生代地壳表层断陷-拉分盆地，被配置在不同的大地构造单元之上，主要类型有断陷式、断坳式和混合型?3?种盆地。盆地两侧或一侧发育长期活动的走滑剪切大断裂，边界可划分为断裂、角度不整合和复合边界?3?种。盆内发育不同尺度的正断层、褶皱，并有不同程度的扩张。盆地形成于总体挤压、局部引张的构造应力场中，并经历了多次挤压、拉张的转换，具有我国东部中新生代成盆机制与发展演化的特点。
　　예서남일대적만백성세분지분포우동진령조산대내，재후조산계단형성적일계렬?NW-SE향중신생대지각표층단함-랍분분지，피배치재불동적대지구조단원지상，주요류형유단함식、단요식화혼합형?3?충분지。분지량측혹일측발육장기활동적주활전절대단렬，변계가화분위단렬、각도불정합화복합변계?3?충。분내발육불동척도적정단층、습추，병유불동정도적확장。분지형성우총체제압、국부인장적구조응력장중，병경력료다차제압、랍장적전환，구유아국동부중신생대성분궤제여발전연화적특점。
Located?in?eastern?Qinling?Mountain?orogenic?belt,?late?cretaceous?basin?in?southwest?area?of?Henan?Province?forms?a?series?of?NW-SE?to?Cenozoic?crustal?surface?rifting?pull-apart?basins?in?the?post?orogenic?stage.?Configured?on?the?different?tectonic?units,?three?main?types?of?late?cretaceous?basin?are?fault?depression,?depression?type?and?mixed?type.?Strike?slip?shear?fault?basin?develops?along?both?sides?or?one?side?of?long?activity?and?its?boundary?can?be?divided?into?the?following?three?types:?fault,?unconformity?and?complex?boundary.?Normal?faults,?folds?of?different?scales?develop?in?the?basin?and?they?share?varying?degrees?of?expansion.?Since?it?is?formed?in?the?structure?stress?field?of?overall?extrusion?and?partial?extension?and?has?experienced?a?number?of?compressions,?tensile?conversion,?the?basin?presents?Cenozoic?basin?mechanism?and?evolution?characteristics.