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泥炭沼泽

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Studies showed that there were two typical combinations of the facies in the filling sedimentary sequence of the epicontinental basin, wherein one was the depositional diastem developed between the facies, which was a discontinuous combination of the depositional facies with continuous time sequence, namely the exposed sediments, the tidal flat swamp and the peat swamp, and the shallow marine sediments appeared from bottom to top; and the other was the continuous sequence with gradually evolved sedimentary environment, in which it was a continuous process that the tidal flat swamp turned gradually into the peat swamp.

研究表明:陆表海盆地充填沉积序列中有两种较为典型的相组合,一是相与相间发育沉积间断面,为不连续沉积相组合,但在时间序列上是连续的,即自下而上依次为暴露沉积、潮坪沼泽及泥炭沼泽、浅海沉积;第二种序列是连续相序,盆地的环境演化是渐变的,潮坪沼泽化逐渐泥炭沼泽化是一个连续过程。

If you dig down into a peat bog, you will find that there are horizontal layers, caused by variations in climate: in dry summers the surface of the bog will dry out and compact, whereas high rainfall will encourage the peat to grow.

如果您向下挖掘成泥炭沼泽,你会发现,有水平层,所造成的气候变化:在干燥的夏天的表面,将干沼泽和紧凑的,而降雨将鼓励泥炭增长。

The coal-forming model s in late permian eporch in Guangxi are divided into "two classes and three types", the two classes are peat bog coal-forming model and peat flat coal-forming model , the three types are bog type, tidal flat type and peat flat type coal-forming model s.

广西晚二叠世成煤模式划分为"两类三型",即泥炭沼泽成煤模式和泥炭坪成煤模式两类,沼泽型、潮坪型和泥炭坪型等三型。

The terrain is dominated by taiga—dense forest of spindly birch, cedar, and pine—and boloto, peaty marsh that is frozen for most of the year and in spots bubbles with methane.

这个地区主要是由茂密的西伯利亚针叶林带和泥炭沼泽构成;针叶林带的树木以细长的桦木、雪松与松树为主,泥炭沼泽一年大多呈冰封状态,有些地点还会冒出甲烷。

The process of terrestrialization of Hanlongwan lake mainly come through some phases as follows:(1)the phases of the lake's formation (3,300-2,250a BP);(2)the phases of lake's development (2,250-2,100a BP);(3)the beginning of terrestrial of Hanlongwan

旱龙湾湖泊沼泽化过程大致经历了以下阶段:(1)旱龙湾火口湖湖泊形成阶段(3,300-2,250 aBP);(2)旱龙湾湖泊发育阶段(2,250-2,100 aBP);(3)旱龙湾湖泊沼泽化伊始(2,100-1,500 aBP);(4)旱龙湾沼泽化扩大发育阶段(1,500-750 aBP);(5)富营养泥炭沼泽阶段(750-24 aBP);(6)富、中营养泥炭沼泽阶段(24 aBP-今)。

Because of a high groundwater level and a strong erosion action, the coal formed in a low peat swamp is great in gelatification index and in groundwa ter index, which are in a negative correlation to the ratio of clean coal recove ry. While for the high peat swamp, IG and IGW are small, corresponding to a high ratio of clean coal recovery.

低位泥炭沼泽由于潜水位较高,水流对泥炭沼泽表面的改造和冲刷作用较强,形成的煤层具有较高的凝胶化指数和地下水流动指数,并且与精煤产率呈负相关,煤中粘土矿物和黄铁矿难以洗选;高位泥炭沼泽形成的煤层具有较低的凝胶化指数和地下水流动指数,泥炭积累速度较快,其精煤的产率较高。

The coal-forming model s in late permian eporch in Guangxi are divided into "two classes and three types", the two classes are peat bog coal-forming model and peat flat coal-forming model , the three types are bog type, tidal flat type and peat flat type coal-forming model s.

广西晚二叠世成煤模式划分为&两类三型&,即泥炭沼泽成煤模式和泥炭坪成煤模式两类,沼泽型、潮坪型和泥炭坪型等三型。

The research of marsh initiated in the 1960s in our country. However, the study of marsh sedimentation and environmental changes was relatively weak, even though we have done some preliminary works on an approach to the characteristics of sporepollen assemblage of peat in the Holocene and paleoenvironmwent, and formation mechanism and deposition kinetics of peatland since 1990s. But we are lacking in systematic research on gleying marsh, especially on recent short timescale and highresolution sedimentation records of environmental changes. There is a certain disparity in this field compared with lake sedimentation and environmental changes.

我国沼泽研究起步于20 世纪60 年代,期间有关沼泽沉积与环境的研究相对薄弱,90 年代以来虽已在泥炭沼泽孢粉解译全新世环境变化与泥炭沉积动力学方面有初步积累,但对潜育沼泽缺乏系统研究,尤其缺乏近代短时间尺度高分辨率环境变化历史记录研究,这方面与湖泊沉积及其环境演变研究相比已形成一定的差距。

According to the research to coal bad and peat bad of predecessor sand author, author point out the characteristic of the peat deposition, and on this basis, build up the peat depositional system and its mbdel of producing coal. At the same time, author point out that the larse-sca1e peatforming swamp correspond to the transforming stage between the high system tract and transgress system tract of sequence.

根据前人与本次对泥炭和煤层的研究,指出了泥炭沉积的特征并依此建立了泥炭沼泽体系和及其成煤模式;指出大规模的泥炭沼泽体系的发育对应于层序的高位体系域与海侵体系域的转折期。

According to the research to coal bad and peat bad of predecessor sand author, author point outthe characteristic of the peat deposition, and on this basis, build up the peat depositional system andits mbdel of producing coal. At the same time, author point out that the larse-sca1e peatformingswamp correspond to the transforming stage between the high system tract and transgress systemtract of sequence.

根据前人与本次对泥炭和煤层的研究,指出了泥炭沉积的特征并依此建立了泥炭沼泽体系和及其成煤模式;指出大规模的泥炭沼泽体系的发育对应于层序的高位体系域与海侵体系域的转折期。

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