We present new major and trace element geochemical data, including the rare‐earth elements (REE), platinum group elements and Au, and combine them with the published information to constrain the highly debated origin of magmas in the Los Tuxtlas Volcanic Field (LTVF) of the Late Miocene to historic age. The LTVF magmas originated in the garnet‐bearing mantle as confirmed from the partial melting models of the REE. The mantle‐derived magmas may have subsequently undergone fractional crystallization of mainly olivine. The controversial tectonic setting of the LTVF was solved by log‐ratio transformed major as well as combined major and trace element data as a continental strike‐slip fault setting during the Miocene–Pliocene. During the Pleistocene to Holocene, the more numerous samples having only major elements alone indicated the continental strike‐slip fault setting, whereas the lesser number of samples having combined major and trace elements were more consistent with the continental extension. Importantly, no geochemical evidence for the involvement of the subducting slab in the magma genesis of the LTVF could be inferred. The inferences presented in this work were consistent with the entirety of geological, geochemical, and geophysical evidence. The multidimensional models also showed that the monogenetic volcanic field of the Xalapa region of the easternmost part of the Mexican Volcanic Belt represents a continental extension setting.

中文翻译：

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墨西哥洛斯图斯特拉斯火山场的地球化学，成岩作用和构造背景

我们提供了新的主要和微量元素地球化学数据，包括稀土元素（REE），铂族元素和金，并将它们与已发布的信息相结合，以限制在洛斯图斯特拉斯火山场（LTVF）受到高度争议的岩浆起源。中新世晚期至历史时期。LTVF岩浆起源于含石榴石的地幔，这由REE的部分熔融模型证实。来自地幔的岩浆可能随后经历了主要为橄榄石的分级结晶。LTVF的有争议的构造背景是通过对数比变换的主要以及组合的主要和微量元素数据作为中新世-上新世期间的大陆走滑断层设置解决的。在更新世至全新世期间 仅拥有主要元素的样本越多，表明大陆走滑断层的设置，而具有主要和微量元素相结合的样本越少，则与大陆扩展更一致。重要的是，不能推断出俯冲板块参与了LTVF岩浆成因的地球化学证据。这项工作中提出的推论与整个地质，地球化学和地球物理证据是一致的。多维模型还显示，墨西哥火山带最东部的哈拉帕地区的单基因火山场代表了大陆性扩张背景。无法推断出俯冲板块参与了LTVF岩浆成因的地球化学证据。这项工作中提出的推论与整个地质，地球化学和地球物理证据是一致的。多维模型还显示，墨西哥火山带最东部的哈拉帕地区的单基因火山场代表了大陆性扩张背景。无法推断出俯冲板块参与了LTVF岩浆成因的地球化学证据。这项工作中提出的推论与整个地质，地球化学和地球物理证据是一致的。多维模型还显示，墨西哥火山带最东部的哈拉帕地区的单基因火山场代表了大陆性扩张背景。