古地理学报Issue(5)：689-698,10.DOI:10.7605/gdlxb.2015.05.057
黑龙江省柳树河盆地始新统八虎力组油页岩元素地球化学特征及沉积环境
Geochemistry characteristics and sedimentary environment of oil shale from the Eocene Bahuli Formation in Liushuhe Basin,Heilongjiang Province
摘要
Abstract
Several layers of oil shale were developed in the Eocene Bahuli Formation of Liushuhe Ba_sin,Heilongjiang Province.Based on the characteristics of major,trace and rare earth elements,sedi_mentary environment of oil shale was analyzed.In the oil shale of Bahuli Formation of Liushuhe Basin, major elements are characterized by rich in Al2 O3 ,Fe and CaO,and poor in SiO2 ,MgO,Na2 O and K2 O;trace elements are generally depleted in different degree,and the amount of rare earth elements (ΣREE) averages 1 40.7×1 0 -6 ,which show mild enrichment of light rare earth elements.Relatively con_sistent change trend of rare earth elements indicates that the provenance and sedimentary environment were relatively stable.The ratio of Mn /Ti shows that the transported distance of material composed oil shale ex_perienced changes from far to near,then to far,which reflects that the depth of water changed from deep to shallow,then to deep.The ratios of Sr /Cu and Rb /Sr indicate that the climate was relatively hot and dry.The ratio of Sr /Ba reflects the salt water lake at that time.The ratios of V /(V +Ni),δEu and the content of organic carbon show that the oil shale was developed in the anaerobic reducing sedimentary envi_ronment.As a whole,the oil shale in Liushuhe Basin was developed in the lake with the condition of hot and dry climate,salt water and anaerobic reduction.关键词
黑龙江省/柳树河盆地/油页岩/元素地球化学/沉积环境/始新统Key words
Helongjiang Province/Liushuhe Basin/oil shale/elemental geochemistry/sedimenta_ry environment/Eocene分类
天文与地球科学引用本文复制引用
郑玉龙,马志强,王佰长,袁国礼,覃建勋..黑龙江省柳树河盆地始新统八虎力组油页岩元素地球化学特征及沉积环境[J].古地理学报,2015,(5):689-698,10.基金项目
国家科技重大专项项目（编号2008ZX05055），国家自然科学基金项目（编号41090371），高等学校博士点专项基金项目（编号20090022120001）共同资助 （）
