CAJ | 학술논문

虽然海拉尔盆地呼和湖凹陷目前勘探程度较低，但它是未来油气增储上产的重要区域。目前对呼和湖凹陷重要沉积物源体系南屯组认识薄弱，因此，精细刻画该区物源体系对该区域勘探具有重要指导意义。通过运用轻重矿物、砂岩厚度及砂岩百分含量、同沉积断裂组合样式分析、古地貌、地震反射特征等方面资料，精细研究了呼和湖凹陷南屯组古物源体系。结果表明，东部锡林贝尔凸起和西部巴彦山隆起是呼和湖凹陷主要物源供给区，由湖盆四周向中央汇聚，其中主要物源来自缓坡带和陡坡带，次要物源来自南部隆起。南屯组时期的沉积体系分布及其砂体展布规律是由物源分布格局所决定。
수연해랍이분지호화호요함목전감탐정도교저，단타시미래유기증저상산적중요구역。목전대호화호요함중요침적물원체계남둔조인식박약，인차，정세각화해구물원체계대해구역감탐구유중요지도의의。통과운용경중광물、사암후도급사암백분함량、동침적단렬조합양식분석、고지모、지진반사특정등방면자료，정세연구료호화호요함남둔조고물원체계。결과표명，동부석림패이철기화서부파언산륭기시호화호요함주요물원공급구，유호분사주향중앙회취，기중주요물원래자완파대화두파대，차요물원래자남부륭기。남둔조시기적침적체계분포급기사체전포규률시유물원분포격국소결정。
At present, although Huhehu depression has low exploration degree in Hailar basin, it is an important area of increasing reservoir and production in the future. Nantun formation in Huhehu depression has an important sediment provenance system, but we have weak understanding of it. Therefore, fine depicting source system has important references for exploration in this area. Through analyzing light- heavy mineral, sandstone thickness and sandstone percentage, synsedimentary fault combination style analysis, palaeogeomorphology, seismic reflection characteristics, we detailed researched sediment provenance system of Nantun formation in Huhehu depression. The results show that the eastern Xilinbeier bulge and the western Bayanshan bulge are main provenance supply areas for Huhehu depression. These supply areas surround lake basin and gather in the center of the depression. The main provenance is from the gentle slope belt and the steep slope zone, while the secondary provenance is from the southern uplift. The depositional system distribution and the sand body distribution rule in Nantun formation are determined by source distri-bution pattern.