The doleritic bluestones of Stonehenge, sourced from the Mynydd Preseli in west Wales, have been previously classified into three geochemical groups on the basis of compatible element geochemistry (Bevins et al., 2014). The majority of Group 1 (spotted) dolerites were identified as coming from the outcrop of Carn Goedog, Group 3 (spotted) dolerites were linked to the outcrops Carn Breseb, Carn Gyfrwy, outcrops in the vicinity of Carn Alw and an un-named outcrop west of Carn Ddafad-las and Group 2 (non-spotted) dolerites were identified as coming from either Cerrigmarchogion or Craig Talfynydd. A sub-set of the samples used by Bevins et al. (2014) have been re-analysed by solution nebulisation ICP-MS, including analyses of the rare earth elements (REE).

Analysis of the REE data reveals that Groups 1 and 3 dolerites from both Stonehenge and the Preseli have very similar REE patterns which strongly suggests that they are derived from a single intrusive body. Group 2 non-spotted dolerites are now divided, on the basis of their REE contents, into four Preseli and two Stonehenge sub-groups, (Groups 2i-2iv and Groups 2v-2vi, respectively) while Stonehenge orthostat sample SH44 plots apart from all other Stonehenge and Preseli samples in all discriminant diagrams used. The new data show that Preseli Group 2i dolerites have very distinct concave down “humped” patterns and bear no resemblance to any analysed Stonehenge dolerites. The source of Stonehenge Group 2v dolerites remains equivocal; they plot close to Preseli Group 2ii dolerites from Carn Ddafad-las and Garn Ddu Fach and have in common the presence of notable positive Eu anomalies, but they show minor differences, especially in relation to their Gd_n/Yb_n ratios. However, Stonehenge orthostat sample SH45 shows a near identical REE composition to Preseli Group 2iii dolerites from Cerrigmarchogion.

In terms of the interpretation of REE contents and chondrite-normalized patterns we found no differences whether using the ‘standard’ techniques used by geochemists, based on chondrite-normalized elemental ratios and values, or the quantitative approach using shape factors derived from polynomial curve fitting.

源自威尔士西部 Mynydd Preseli 的巨石阵的辉绿岩青石先前已根据相容元素地球化学分为三个地球化学组（Bevins 等，2014）。大多数第 1 组（有斑点的）玄武岩被确定为来自 Carn Goedog 的露头，第 3 组（有斑点的）玄武岩与露头 Carn Breseb、Carn Gyfrwy、Carn Alw 附近的露头和未命名的露头有关Carn Ddafad-las 以西和第 2 组（无斑点）玄武岩被确定为来自 Cerrigmarchogion 或 Craig Talfynydd。Bevins 等人使用的样本子集。(2014) 已通过溶液雾化 ICP-MS 重新分析，包括对稀土元素 (REE) 的分析。

对 REE 数据的分析表明，来自巨石阵和普雷塞利的第 1 组和第 3 组辉绿岩具有非常相似的 REE 模式，这强烈表明它们来自单个侵入体。第 2 组非斑点辉绿岩现在根据其 REE 含量分为四个 Preseli 和两个巨石阵亚组（分别为第 2i-2iv 组和第 2v-2vi 组），而巨石阵正畸样本 SH44使用的所有判别图中的其他巨石阵和 Preseli 样本。新数据显示，Preseli Group 2i 辉绿岩具有非常明显的下凹“驼峰”图案，与任何分析过的巨石阵辉绿岩都没有相似之处。巨石阵群 2v 玄武岩的来源仍然模棱两可。_n /Yb _n比率。然而，巨石阵正畸样品 SH45 显示出与来自 Cerrigmarchogion 的 Preseli Group 2iii 辉绿岩几乎相同的 REE 成分。

在对稀土元素含量和球粒陨石归一化模式的解释方面，我们发现无论是使用地球化学家使用的“标准”技术，基于球粒陨石归一化元素比率和值，还是使用多项式曲线拟合得出的形状因子的定量方法，都没有差异.