摘要
根据抚顺盆地早第三纪超厚煤层中异常丰富的成因标志，论证了一种与河流、风暴作用有关的陆相超厚煤层形成新机制——湖成异地—微异地混合堆积机制。在这一新机制中，由风暴上升流（也许还有地震）触发的水下重力流及风暴回流，既驱动湖滨泥炭沼泽和三角洲上的有机碎屑及无机碎屑进入湖泊中心区，又造成泥炭碎屑在较深水环境的再次堆积，从而使其中无机碎屑与泥炭碎屑有效地分离。
According to the extremely abundant genetic indicators of the Palaeogene extra thick coal seam in the Fushun coal field,a new formation mechanism for the continental extra thick coal seam,i e ,lacustrine allochthonous microallochthonous mixed peat accumulation mechanism,which is related to the river and strom events,are demonstrated In this new mechanism,the storm current or subaquatic gravity current induced by storm not only transported the organic and inorganic clasts formed in lakeshore swamp and delta into the central lake,but also redeposited the peat clasts in deeper water environment,separating effectively the inorganic clasts from the peat clasts
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1997年第2期1-6,共6页
Coal Geology & Exploration
关键词
厚煤层
成因
沉积条件
煤矿床
盆地
thick coal seam
genesis
sedimentary conditions
palaeogene
Fushun coalfield
