Dense and strong, hydrothermal-metasomatic jadeitite and jadeite-omphacite rocks were used as tools and adornments throughout the wider Caribbean since initial inhabitation. Regionally, rich sources of jadeitite and jadeite-omphacite jade are known only in Guatemala (north and south of the Motagua Fault Zone), eastern Cuba and the northern Dominican Republic, establishing that humans transported jadeitic material over vast distances. This study validates that geochemical fingerprinting is a viable provenance method for Caribbean pre-colonial jadeitic lithologies. An assemblage of 101 source rocks has been characterised for trace element and combined Sr-Nd-Pb isotope compositions. Four statistical approaches (Principal Component Analysis, t-Distributed Stochastic Neighbour Embedding, Decision Tree, and Multiclass Regression) were assessed, employing source-distinct trace element ratios. A multiclass regression technique based on trace element ratios of immobile high field strength, light to medium rare earth and fluid-mobile, large-ion-lithophile elements is shown to be most effective in discriminating the four source regions.

Ninety-one % of the Guatemalan samples can be discriminated from the Dominican and Cuban sources using La/Th, Zr/Hf and Y/Th ratios. Jadeitic rocks cropping out in the Dominican Republic can be distinguished from Cuban jades employing Er/Yb, Nb/Ta and Ba/Rb ratios with 71% certainty. Furthermore, the two Guatemala sources, north and south of the Motagua Fault Zone, can be discriminated by using (among others) Zr/Hf, Ta/Th, La/Sm and Dy/Y ratios with an 89% success rate. This raises the possibility of determining, in detail, former trading and mobility networks between different islands and the Meso- and Central American mainland within the Greater Caribbean.

The provenance technique was applied to 19 pre-colonial jade celts excavated from the Late Ceramic Age Playa Grande archaeological site in the northern Dominican Republic. Three artefacts are discriminated as derived from the Guatemalan source, indicating that, despite a source of jade within 25 km, material was traded from Guatemala. The presence of Guatemalan jade in the Playa Grande lithic assemblage provides further evidence of large scale (>3000 km), regional trading and indigenous knowledge transfer networks.

自最初有人居住以来，致密而坚固的热液交代硬玉和硬玉绿辉石在整个加勒比地区被用作工具和装饰品。从地区来看，只有危地马拉（莫塔瓜断层带北部和南部）、古巴东部和多米尼加共和国北部拥有丰富的硬玉和硬玉-绿辉石资源，这表明人类远距离运输硬玉材料。本研究证实，地球化学指纹识别是加勒比前殖民时期硬玉岩性的一种可行的物源方法。已对 101 个烃源岩组合进行了痕量元素和 Sr-Nd-Pb 组合同位素组成的表征。评估了四种统计方法（主成分分析、t 分布随机邻域嵌入、决策树和多类回归），采用不同来源的微量元素比率。一种基于固定高场强、轻中稀土和流体可移动、大离子亲石元素的微量元素比率的多类回归技术在区分四个源区域方面最有效。

可以使用 La/Th、Zr/Hf 和 Y/Th 比率将 91% 的危地马拉样本与多米尼加和古巴来源区分开来。多米尼加共和国出产的硬玉岩石可以与采用 Er/Yb、Nb/Ta 和 Ba/Rb 比率的古巴玉区分开来，确定性为 71%。此外，Motagua 断裂带北部和南部的两个危地马拉源可以通过使用（除其他外）Zr/Hf、Ta/Th、La/Sm 和 Dy/Y 比率进行区分，成功率为 89%。这增加了详细确定大加勒比地区不同岛屿与中美洲和中美洲大陆之间以前的贸易和流动网络的可能性。

原产地技术被应用于从多米尼加共和国北部的晚陶瓷时代 Playa Grande 考古遗址出土的 19 个前殖民时期的玉器。三件人工制品被认定为来自危地马拉来源，表明尽管 25 公里范围内有玉石来源，但材料是从危地马拉交易的。Playa Grande 石器组合中危地马拉玉的存在为大规模（> 3000 公里）、区域贸易和本土知识转移网络提供了进一步的证据。