Low field nuclear magnetic resonance as a potential tool for differentiating bedded and nodular cherts outcrops

This data compiles 1- and 2-D LF-NMR relaxation data of nodular and bedded cherts. Measurements were conducted on nine rock cores derived from three distinct outcrops situated in the southern KCU region. Specifically, samples were obtained from Sowiniec Horst (SB1), Ujazd (SA9, SA9!a, SA9!b, SA3, SA8), and Wielkanoc Quarry (SC1, SC2, SC4b). The measurement protocol involved assessing each sample in three water saturation states: native, dried (after 12 hours at 200°C), and saturated (after 24 hours in a vacuum at room temperature). To prevent evaporation of absorbed water, saturated samples were safeguarded with a residual amount of plastic foil (0.06 g). Furthermore, differential state (SD) distributions were obtained by subtracting raw dry sample distributions from raw saturated sample distributions. This approach specifically characterized movable water, providing insights into open porosity.

本数据集汇聚了节理状和层状燧石的1D和2D低场核磁共振（LF-NMR）弛豫数据。测量工作针对来自三个不同露头区域的九个岩石芯样进行，这些露头位于KCU南部地区。具体而言，样本采集自Sowiniec Horst（SB1）、Ujazd（SA9、SA9!a、SA9!b、SA3、SA8）以及Wielkanoc采石场（SC1、SC2、SC4b）。测量协议涉及对每个样本在三种水分饱和状态下进行评估：原态、烘干态（在200°C下烘干12小时后）以及饱和态（在室温下真空浸泡24小时后）。为防止吸收水分的蒸发，饱和样本用一定量的塑料薄膜（0.06克）进行保护。此外，通过从原始烘干态样本分布中减去原始饱和态样本分布，获得了差分状态（SD）分布，该方法专门表征了可动水，为开放孔隙率的了解提供了洞见。