CAJ | 학술논문

通过岩心及薄片的观察，结合扫描电镜阴极发光等资料分析，对哈拉哈塘地区东河砂岩成岩作用进行了研究。结果表明：东河砂岩以岩屑石英砂岩为主，成岩作用类型有压实作用、胶结作用、溶解作用及交代作用。综合成岩作用的组合类型及其演化序列，认为本区东河砂岩主体处于中成岩阶段A期。分别讨论了沉积相、埋藏作用和层序地层等对成岩作用的控制，研究区东河砂岩在低温背景下，长期浅埋且晚期短暂快速深埋，总体上压实程度中等；主要发育滨岸和浪控三角洲沉积体系，在高精度层序界面附近，相对海平面上升，可容纳空间增大，沉积物沉积速率相对较低，且停留时间长，在同生成岩和早成岩阶段容易形成广泛分布的碳酸盐胶结。
통과암심급박편적관찰，결합소묘전경음겁발광등자료분석，대합랍합당지구동하사암성암작용진행료연구。결과표명：동하사암이암설석영사암위주，성암작용류형유압실작용、효결작용、용해작용급교대작용。종합성암작용적조합류형급기연화서렬，인위본구동하사암주체처우중성암계단A기。분별토론료침적상、매장작용화층서지층등대성암작용적공제，연구구동하사암재저온배경하，장기천매차만기단잠쾌속심매，총체상압실정도중등；주요발육빈안화랑공삼각주침적체계，재고정도층서계면부근，상대해평면상승，가용납공간증대，침적물침적속솔상대교저，차정류시간장，재동생성암화조성암계단용역형성엄범분포적탄산염효결。
Donghe sandstone diagenesis were studied through core and rock slice observations and data analysi-ses of scanning electron microscope and cathodoluminescence in the Hanilcatam depression.The reservoir rocks mainly is lithic quartz sandstone.The types of the diagenesis are the compaction,cementation,replacement and dissolution.The diagenetic stage belongs to the A middle diagenesis.The control of sedimentary facies,burial and sequence stratigraphy on diagenesis are discussed.Donghe sandstone in the study area was long-term shal-low buried and short-term quick deep buried in later period in the low-temperature background,so the degree of compaction is moderate in general.Shore and wave-dominated deltaic depositional systems are developed.Near the high-resolution sequence boundaries where relative sea-level rises,accommodate space increases,sediment deposition rate is relatively low,and residence time is long,develop laterally persistent carbonate cemented ho-rizons in syndiagenesis and early diagenesis stages.