六月 22, 2017

爱尔兰论文代写骗子:钻孔样本采集

爱尔兰论文代写骗子:钻孔样本采集

根据对2002年幼龄样品的分析,发现钻孔样本不能被强迫缩短或缩短。这是因为样品中没有标记品种。因此,所有的样品都不能放置在“迪南丹”的TC和NC区之间。在不可见的情况下,利用孢粉地层学对孢子群进行改变的低法令是不可见的。所有样品均可从VF区注明。在样品中发现的物种非常相似,而且在野外样本中发现的集合中,具有最重要和主要的palynoms是denso孢子和Lycospora的种类。通过利用叠加法的假设,从钻孔序列中提取的样品更年轻。样品的年龄范围可以被压缩,在其他样品的年龄范围内也可以。

爱尔兰论文代写骗子:钻孔样本采集

研究结果表明,利用现有的miospore zonation方案,不太可能出现高分辨率的孢粉地层,这是由于罕见的已公布的指数品种。这些样本,来自于福尔斯盆地附近的露头,以及来自于东钻孔的那些来自于下石炭纪的样品。除此之外,在最上面的Visean和最下层的Namurian的底部,也有来自于Pu区域的外露样品。除一人以外的所有可数据样本均已从维恩西及以上的TC区分配。在NC区域开始出现的大量的densospores和Lycospores物种,表明所有的样品都是在NC区和Barham之上的,(1995)。露头部分的相对年龄不能精确地确定。准确地说,钻孔样本被认为比从露头采集的样本要年轻一些。

爱尔兰论文代写骗子:钻孔样本采集

According to the analysis of the samples of Young (2002), it is extracted that the borehole samples could not be forced to very narrow or shorter time periods. This is because of the reason that there is absence of the marker species within the samples. Consequently, all samples could not be positioned between the TC and NC zones of the “Dinantian”. The low decree attained using palynostratigraphy intended changes in the spore grouping over the time were not visible. All the samples can be dated from the VF zone. The assembly of species found in the samples was very alike to each other and to the assemblages found in the outcrop samples, having the foremost and dominant palynomorphs are the densospores and the species of Lycospora.By making use of the postulations of the Law of Superposition, sample taken from advanced up in the borehole sequence are younger. The ranges of the age of the samples can be squeezed, on the basis of the age ranges of the other samples from within the boreholes as well.

爱尔兰论文代写骗子:钻孔样本采集
The outcomes point towards the high resolution palynostratigraphic is not probable in the Forth Basin using the available miospore zonation schemes because of the rare incidence of published index species. The sets of samples, those from outcrops around the Forth Basin and those from the Kincardine East borehole were dated from the lower Carboniferous. In addition to this, the outcrop samples dated from the Pu zone at the base of the uppermost Visean and lowermost Namurian. All datable samples except one have been allocated ages from the TC zone of the Visean and above. The great quantity of densospores and Lycospores species which turn out to be common at the start of the NC zone put forward that all the samples date from the NC zone and above Barham, (1995). The relative ages of the outcrop sections could not be determined very precisely and exactly. Precisely, the borehole samples are thought to be somewhat younger than those collected from outcrops.

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