An investigation of the soils developed on ultramafic rocks in the State Line Serpentinite Belt in southeastern Pennsylvania demonstrated that the mineral assemblages are dominated by quartz, with lesser amounts of the serpentine group minerals lizardite and antigorite, and clinochlore, among other minerals. The samples have up to 39.91% MgO, 22,500 μg/g Cr, and 3300 μg/g Ni (ash basis). The light rare earth elements have a significant correlation to MgO/(MgO + SiO) while the distribution of Cr is random. The organic matter in the soil bears a strong similarity to lignite and subbituminous macerals. Wood-derived macerals showed variations from relatively pristine wood to degraded and attrital forms with evidence of fungal and faunal activity. Macrinite ranged from coprolitic forms to amorphous masses with little or no recognizable structure. The pollen assemblages were dominated by sp., sp., and sp. Analysis of the fungal assemblages and guild structures suggests that the Goat Hill Barrens assemblage differed from the New Texas Barrens and Nottingham Barrens assemblages and that the guild structures encountered are both similar to those encountered in peatlands while also very different, especially in the proportion of arbuscular mycorrhizal fungal remains.

中文翻译：

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宾夕法尼亚州切斯特县和兰开斯特县蛇纹石贫瘠之地土壤的有机岩石学、孢粉学和地球化学：关于显微物质发育的注释


对宾夕法尼亚州东南部 State Line 蛇纹岩带超镁铁质岩石发育的土壤的调查表明，矿物组合以石英为主，还有少量的蛇纹石族矿物蜥蜴石和叶蛇纹石以及斜绿石等矿物。样品中的 MgO 含量高达 39.91%、Cr 含量为 22,500 μg/g、Ni 含量为 3300 μg/g（以灰分计）。轻稀土元素与MgO/(MgO + SiO)有显着相关性，而Cr的分布是随机的。土壤中的有机质与褐煤和次烟煤显微组分非常相似。木材来源的显微物质表现出从相对原始的木材到退化和磨损形式的变化，并有真菌和动物活动的证据。 Macrinite 的范围从粪石形式到几乎没有或没有可识别结构的无定形块。花粉组合以sp.、sp.和sp.为主。对真菌组合和行会结构的分析表明，山羊山贫瘠之地组合与新得克萨斯贫瘠之地和诺丁汉贫瘠之地组合不同，所遇到的行会结构与泥炭地中遇到的相似，但也有很大不同，特别是在丛枝植物的比例方面。菌根真菌残留物。