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对现代深海砂的完整岩石组分分析还很少,但这种分析对于了解古代砂岩中构造活动对岩石性质的影响以及由成岩作用所引起的岩石性质的变化都是很必要的。本文是一次初步尝试,利用我们自己所研究的八十种砂样数据以及文献上的数据,为现代深海砂确立了一套古代砂岩可以与之对比的基准。根据板块构造概念,我们把砂子分为五类,每一类都有独特的平均岩石组分:(1)与推移大陆边缘有关的盆地,Q_(62)F_(26)L_(12);(2)与主动大陆边缘的俯冲带有关的盆地。Q_(16)F_(63)L_(31);(3)与主动大陆边缘的走向滑动带有关的盆地。Q_(34)F_(39)L_(27);(4)弧后盆地,Q_(20)F_(29)L_(51);(5)弧前盆地,Q_(8)F_(17)L_(75)。质碎屑的含量和类型以及长石的类型都具有特剐重要的鉴别意义,其次是石英的含量。推移边缘盆地和弧前盆地的砂均具有十分典型的组分。而弧后盆地和主动边缘附近的两类盆地的砂组分则显得有些重叠,故要在古代砂岩中区分出这三类盆地可能还有困难,
The analysis of the complete rock composition of modern deep-sea sand is rare, but such analyzes are necessary to understand the effect of tectonic activity on rock properties in ancient sandstone and the changes in rock properties caused by diagenesis. This article is an initial attempt to establish a set of benchmarks on which ancient sandstone can be compared to modern deep-sea sand, using the data of the 80 sand samples we studied and the literature. According to the plate tectonic concept, we divide the sand into five classes, each with unique average rock components: (1) Q_ (62) F_ (26) L_ (12) 2) Basins related to subduction zones along active continental margin. Q_ (16) F_ (63) L_ (31); and (3) basins related to the strike-slip zone of the active continental margin. Q_ (34) F_ (39) L_ (27); (4) backarc basin Q_ (20) F_ (29) L_ (51) 75). The content and type of crumb and the type of feldspar all have the important distinguishing meaning of special fossils, followed by the content of quartz. The sand that migrated to the marginal basin and the forearc basin has very typical components. However, the sand compositions of the two types of basins near the backarc basin and the active edge appear to overlap with each other, so it may be difficult to distinguish these three types of basins from the ancient sandstone.