一、问题的提出 在运用Q因子分类法对一批样品进行统计分群时,需要首先选定某样品作为参比样品,即A样品。 在所研究的区域的学科背景比较明朗的情况下,例如在有河流注入的封闭或半封闭的沉积盆地中,或者在深水区和浅水区并存的海区中,A样品可由有关的学科特征来选定。但在背景复杂的海区,以及在研究古沉积环境时,A样品如何产生呢?虽然这时可 First, the issue put forward In the use of Q factor classification of a group of samples for statistical grouping, you need to first select a sample as a reference sample, A sample. Where the subject area under study is relatively clear, for example, in closed or semi-closed sedimentary basins in which rivers are infused, or in sea areas where deep and shallow water coexist, samples of A may be selected from relevant subject characteristics set. However, in the background of complex sea areas, and in the study of the paleo-sedimentary environment, A sample how to produce it? Although this time